88 files changed, 4865 insertions, 1562 deletions

diff --git a/MCServer/Plugins/APIDump/APIDesc.lua b/MCServer/Plugins/APIDump/APIDesc.lua
index 64ba80c5f..3e1a6e3bb 100644
--- a/MCServer/Plugins/APIDump/APIDesc.lua
+++ b/MCServer/Plugins/APIDump/APIDesc.lua
@@ -942,24 +942,6 @@ cFile:Delete("/usr/bin/virus.exe");
 			Inherits = "cEntity",
 		},
 		
-		cGroup =
-		{
-			Desc = [[
-				This class represents a group {{cPlayer|players}} can be in. Groups define the permissions players
-				have, and optionally the color of their name in the chat.
-			]],
-			Functions =
-			{
-				SetName = { Return = "" },
-				GetName = { Return = "string" },
-				SetColor = { Return = "" },
-				GetColor = { Return = "string" },
-				AddCommand = { Return = "" },
-				AddPermission = { Return = "" },
-				InheritFrom = { Return = "" },
-			},
-		},  -- cGroup
-
 		cIniFile =
 		{
 			Desc = [[
@@ -1760,7 +1742,6 @@ a_Player:OpenWindow(Window);
 			Functions =
 			{
 				AddFoodExhaustion = { Params = "Exhaustion", Return = "", Notes = "Adds the specified number to the food exhaustion. Only positive numbers expected." },
-				AddToGroup = { Params = "GroupName", Return = "", Notes = "Temporarily adds the player to the specified group. The assignment is lost when the player disconnects." },
 				CalcLevelFromXp = { Params = "XPAmount", Return = "number", Notes = "(STATIC) Returns the level which is reached with the specified amount of XP. Inverse of XpForLevel()." },
 				CanFly = { Return = "bool", Notes = "Returns if the player is able to fly." },
 				CloseWindow = { Params = "[CanRefuse]", Return = "", Notes = "Closes the currently open UI window. If CanRefuse is true (default), the window may refuse the closing." },
@@ -1770,7 +1751,7 @@ a_Player:OpenWindow(Window);
 				FoodPoison = { Params = "NumTicks", Return = "", Notes = "Starts the food poisoning for the specified amount of ticks; if already foodpoisoned, sets FoodPoisonedTicksRemaining to the larger of the two" },
 				ForceSetSpeed = { Params = "{{Vector3d|Direction}}", Notes = "Forces the player to move to the given direction." },
 				GetClientHandle = { Params = "", Return = "{{cClientHandle}}", Notes = "Returns the client handle representing the player's connection. May be nil (AI players)." },
-				GetColor = { Return = "string", Notes = "Returns the full color code to be used for this player (based on the first group). Prefix player messages with this code." },
+				GetColor = { Return = "string", Notes = "Returns the full color code to be used for this player's messages (based on their rank). Prefix player messages with this code." },
 				GetCurrentXp = { Params = "", Return = "number", Notes = "Returns the current amount of XP" },
 				GetEffectiveGameMode = { Params = "", Return = "{{Globals#GameMode|GameMode}}", Notes = "(OBSOLETE) Returns the current resolved game mode of the player. If the player is set to inherit the world's gamemode, returns that instead. See also GetGameMode() and IsGameModeXXX() functions. Note that this function is the same as GetGameMode(), use that function instead." },
 				GetEquippedItem = { Params = "", Return = "{{cItem}}", Notes = "Returns the item that the player is currently holding; empty item if holding nothing." },
@@ -1784,7 +1765,6 @@ a_Player:OpenWindow(Window);
 				GetFoodSaturationLevel = { Params = "", Return = "number", Notes = "Returns the food saturation (overcharge of the food level, is depleted before food level)" },
 				GetFoodTickTimer = { Params = "", Return = "", Notes = "Returns the number of ticks past the last food-based heal or damage action; when this timer reaches 80, a new heal / damage is applied." },
 				GetGameMode = { Return = "{{Globals#GameMode|GameMode}}", Notes = "Returns the player's gamemode. The player may have their gamemode unassigned, in which case they inherit the gamemode from the current {{cWorld|world}}.<br /> <b>NOTE:</b> Instead of comparing the value returned by this function to the gmXXX constants, use the IsGameModeXXX() functions. These functions handle the gamemode inheritance automatically."},
-				GetGroups = { Return = "array-table of {{cGroup}}", Notes = "Returns all the groups that this player is member of, as a table. The groups are stored in the array part of the table, beginning with index 1."},
 				GetIP = { Return = "string", Notes = "Returns the IP address of the player, if available. Returns an empty string if there's no IP to report."},
 				GetInventory = { Return = "{{cInventory|Inventory}}", Notes = "Returns the player's inventory"},
 				GetMaxSpeed = { Params = "", Return = "number", Notes = "Returns the player's current maximum speed, relative to the game default speed. Takes into account the sprinting / flying status." },
@@ -1807,15 +1787,13 @@ a_Player:OpenWindow(Window);
 				IsGameModeAdventure = { Params = "", Return = "bool", Notes = "Returns true if the player is in the gmAdventure gamemode, or has their gamemode unset and the world is a gmAdventure world." },
 				IsGameModeCreative = { Params = "", Return = "bool", Notes = "Returns true if the player is in the gmCreative gamemode, or has their gamemode unset and the world is a gmCreative world." },
 				IsGameModeSurvival = { Params = "", Return = "bool", Notes = "Returns true if the player is in the gmSurvival gamemode, or has their gamemode unset and the world is a gmSurvival world." },
-				IsInGroup = { Params = "GroupNameString", Return = "bool", Notes = "Returns true if the player is a member of the specified group." },
 				IsOnGround = { Params = "", Return = "bool", Notes = "Returns true if the player is on ground (not falling, not jumping, not flying)" },
 				IsSatiated = { Params = "", Return = "bool", Notes = "Returns true if the player is satiated (cannot eat)." },
 				IsVisible = { Params = "", Return = "bool", Notes = "Returns true if the player is visible to other players" },
-				LoadPermissionsFromDisk = { Params = "", Return = "", Notes = "Reloads the player's permissions from the disk. This loses any temporary changes made to the player's groups." },
+				LoadRank = { Params = "", Return = "", Notes = "Reloads the player's rank, message visuals and permissions from the {{cRankManager}}, based on the player's current rank." },
 				MoveTo = { Params = "{{Vector3d|NewPosition}}", Return = "Tries to move the player into the specified position." },
 				MoveToWorld = { Params = "WorldName", Return = "bool", Return = "Moves the player to the specified world. Returns true if successful." },
 				OpenWindow = { Params = "{{cWindow|Window}}", Return = "", Notes = "Opens the specified UI window for the player." },
-				RemoveFromGroup = { Params = "GroupName", Return = "", Notes = "Temporarily removes the player from the specified group. This change is lost when the player disconnects." },
 				Respawn = { Params = "", Return = "", Notes = "Restores the health, extinguishes fire, makes visible and sends the Respawn packet." },
 				SendMessage = { Params = "Message", Return = "", Notes = "Sends the specified message to the player." },
 				SendMessageFailure = { Params = "Message", Return = "", Notes = "Prepends Rose [INFO] / colours entire text (depending on ShouldUseChatPrefixes()) and sends message to player. For a command that failed to run because of insufficient permissions, etc." },
@@ -2004,6 +1982,71 @@ cPluginManager.AddHook(cPluginManager.HOOK_CHAT, OnChatMessage);
 			},
 		},  -- cPluginManager
 
+		cRankManager =
+		{
+			Desc = [[
+				Manages the players' permissions. The players are assigned a single rank, which contains groups of
+				permissions. The functions in this class query or modify these.</p>
+				<p>
+				All the functions are static, call them using the <code>cRankManager:Function()</code> convention.</p>
+				<p>
+				The players are identified by their UUID, to support player renaming.</p>
+				<p>
+				The rank also contains specific "mesage visuals" - bits that are used for formatting messages from the
+				players. There's a message prefix, which is put in front of every message the player sends, and the
+				message suffix that is appended to each message. There's also a PlayerNameColorCode, which holds the
+				color that is used for the player's name in the messages.</p>
+				<p>
+				Each rank can contain any number of permission groups. These groups allow for an easier setup of the
+				permissions - you can share groups among ranks, so the usual approach is to group similar permissions
+				together and add that group to any rank that should use those permissions.</p>
+				<p>
+				Permissions are added to individual groups. Each group can support unlimited permissions. Note that
+				adding a permission to a group will make the permission available to all the ranks that contain that
+				permission group.</p>
+				<p>
+				One rank is reserved as the Default rank. All players that don't have an explicit rank assigned to them
+				will behave as if assigned to this rank. The default rank can be changed to any other rank at any time.
+				Note that the default rank cannot be removed from the RankManager - RemoveRank() will change the default
+				rank to the replacement rank, if specified, and fail if no replacement rank is specified. Renaming the
+				default rank using RenameRank() will change the default rank to the new name.
+			]],
+			Functions =
+			{
+				AddGroup = { Params = "GroupName", Return = "", Notes = "Adds the group of the specified name. Logs a warning and does nothing if the group already exists." },
+				AddGroupToRank = { Params = "GroupName, RankName", Return = "bool", Notes = "Adds the specified group to the specified rank. Returns true on success, false on failure - if the group name or the rank name is not found." },
+				AddPermissionToGroup = { Params = "Permission, GroupName", Return = "bool", Notes = "Adds the specified permission to the specified group. Returns true on success, false on failure - if the group name is not found." },
+				AddRank = { Params = "RankName, MsgPrefix, MsgSuffix, MsgNameColorCode", Return = "", Notes = "Adds a new rank of the specified name and with the specified message visuals. Logs an info message and does nothing if the rank already exists." },
+				GetAllGroups = { Params = "", Return = "array-table of groups' names", Notes = "Returns an array-table containing the names of all the groups that are known to the manager." },
+				GetAllPermissions = { Params = "", Return = "array-table of permissions", Notes = "Returns an array-table containing all the permissions that are known to the manager." },
+				GetAllRanks = { Params = "", Return = "array-table of ranks' names", Notes = "Returns an array-table containing the names of all the ranks that are known to the manager." },
+				GetDefaultRank = { Params = "", Return = "string", Notes = "Returns the name of the default rank. " },
+				GetGroupPermissions = { Params = "GroupName", Return = "array-table of permissions", Notes = "Returns an array-table containing the permissions that the specified group contains." },
+				GetPlayerGroups = { Params = "PlayerUUID", Return = "array-table of groups' names", Notes = "Returns an array-table of the names of the groups that are assigned to the specified player through their rank. Returns an empty table if the player is not known or has no rank or groups assigned to them." },
+				GetPlayerMsgVisuals = { Params = "PlayerUUID", Return = "MsgPrefix, MsgSuffix, MsgNameColorCode", Notes = "Returns the message visuals assigned to the player. If the player is not explicitly assigned a rank, the default rank's visuals are returned. If there is an error, no value is returned at all." },
+				GetPlayerPermissions = { Params = "PlayerUUID", Return = "array-table of permissions", Notes = "Returns the permissions that the specified player is assigned through their rank. Returns the default rank's permissions if the player has no explicit rank assigned to them. Returns an empty array on error." },
+				GetPlayerRankName = { Params = "PlayerUUID", Return = "RankName", Notes = "Returns the name of the rank that is assigned to the specified player. An empty string (NOT the default rank) is returned if the player has no rank assigned to them." },
+				GetRankGroups = { Params = "RankName", Return = "array-table of groups' names", Notes = "Returns an array-table of the names of all the groups that are assigned to the specified rank. Returns an empty table if there is no such rank." },
+				GetRankPermissions = { Params = "RankName", Return = "array-table of permissions", Notes = "Returns an array-table of all the permissions that are assigned to the specified rank through its groups. Returns an empty table if there is no such rank." },
+				GetRankVisuals = { Params = "RankName", Return = "MsgPrefix, MsgSuffix, MsgNameColorCode", Notes = "Returns the message visuals for the specified rank. Returns no value if the specified rank does not exist." },
+				GroupExists = { Params = "GroupName", Return = "bool", Notes = "Returns true iff the specified group exists." },
+				IsGroupInRank = { Params = "GroupName, RankName", Return = "bool", Notes = "Returns true iff the specified group is assigned to the specified rank." },
+				IsPermissionInGroup = { Params = "Permission, GroupName", Return = "bool", Notes = "Returns true iff the specified permission is assigned to the specified group." },
+				IsPlayerRankSet = { Params = "PlayerUUID", Return = "bool", Notes = "Returns true iff the specified player has a rank assigned to them." },
+				RankExists = { Params = "RankName", Return = "bool", Notes = "Returns true iff the specified rank exists." },
+				RemoveGroup = { Params = "GroupName", Return = "", Notes = "Removes the specified group completely. The group will be removed from all the ranks using it and then erased from the manager. Logs an info message and does nothing if the group doesn't exist." },
+				RemoveGroupFromRank = { Params = "GroupName, RankName", Return = "", Notes = "Removes the specified group from the specified rank. The group will still exist, even if it isn't assigned to any rank. Logs an info message and does nothing if the group or rank doesn't exist." },
+				RemovePermissionFromGroup = { Params = "Permission, GroupName", Return = "", Notes = "Removes the specified permission from the specified group. Logs an info message and does nothing if the group doesn't exist." },
+				RemovePlayerRank = { Params = "PlayerUUID", Return = "", Notes = "Removes the player's rank; the player's left without a rank. Note that this doesn't change the {{cPlayer}} instances for the already connected players, you need to update all the instances manually. No action if the player has no rank assigned to them already." },
+				RemoveRank = { Params = "RankName, [ReplacementRankName]", Return = "", Notes = "Removes the specified rank. If ReplacementRankName is given, the players that have RankName will get their rank set to ReplacementRankName. If it isn't given, or is an invalid rank, the players will be removed from the manager, their ranks will be unset completely. Logs an info message and does nothing if the rank is not found." },
+				RenameGroup = { Params = "OldName, NewName", Return = "", Notes = "Renames the specified group. Logs an info message and does nothing if the group is not found or the new name is already used." },
+				RenameRank = { Params = "OldName, NewName", Return = "", Notes = "Renames the specified rank. Logs an info message and does nothing if the rank is not found or the new name is already used." },
+				SetDefaultRank = { Params = "RankName", Return = "bool", Notes = "Sets the specified rank as the default rank. Returns true on success, false on failure (rank doesn't exist)." },
+				SetPlayerRank = { Params = "PlayerUUID, PlayerName, RankName", Return = "", Notes = "Updates the rank for the specified player. The player name is provided for reference, the UUID is used for identification. Logs a warning and does nothing if the rank is not found." },
+				SetRankVisuals = { Params = "RankName, MsgPrefix, MsgSuffix, MsgNameColorCode", Return = "", Notes = "Updates the rank's message visuals. Logs an info message and does nothing if rank not found." },
+			},
+		},  -- cRankManager
+
 		cRoot =
 		{
 			Desc = [[
@@ -2032,7 +2075,6 @@ cPluginManager.AddHook(cPluginManager.HOOK_CHAT, OnChatMessage);
 				GetDefaultWorld = { Params = "", Return = "{{cWorld|cWorld}}", Notes = "Returns the world object from the default world." },
 				GetFurnaceFuelBurnTime = { Params = "{{cItem|Fuel}}", Return = "number", Notes = "(STATIC) Returns the number of ticks for how long the item would fuel a furnace. Returns zero if not a fuel." },
 				GetFurnaceRecipe = { Params = "{{cItem|InItem}}", Return = "{{cItem|OutItem}}, NumTicks, {{cItem|InItem}}", Notes = "(STATIC) Returns the furnace recipe for smelting the specified input. If a recipe is found, returns the smelted result, the number of ticks required for the smelting operation, and the input consumed (note that MCServer supports smelting M items into N items and different smelting rates). If no recipe is found, returns no value." },
-				GetGroupManager = { Params = "", Return = "{{cGroupManager|cGroupManager}}", Notes = "Returns the cGroupManager object." },
 				GetPhysicalRAMUsage = { Params = "", Return = "number", Notes = "Returns the amount of physical RAM that the entire MCServer process is using, in KiB. Negative if the OS doesn't support this query." },
 				GetPluginManager = { Params = "", Return = "{{cPluginManager|cPluginManager}}", Notes = "Returns the cPluginManager object." },
 				GetPrimaryServerVersion = { Params = "", Return = "number", Notes = "Returns the servers primary server version." },
@@ -2116,10 +2158,11 @@ end
 			{
 				GetDescription = { Return = "string", Notes = "Returns the server description set in the settings.ini." },
 				GetMaxPlayers = { Return = "number", Notes = "Returns the max amount of players who can join the server." },
-				SetMaxPlayers = { Params = "number", Notes = "Sets the max amount of players who can join." },
 				GetNumPlayers = { Return = "number", Notes = "Returns the amount of players online." },
 				GetServerID = { Return = "string", Notes = "Returns the ID of the server?" },
 				IsHardcore = { Params = "", Return = "bool", Notes = "Returns true if the server is hardcore (players get banned on death)." },
+				SetMaxPlayers = { Params = "number", Notes = "Sets the max amount of players who can join." },
+				ShouldAuthenticate = { Params = "", Return = "bool", Notes = "Returns true iff the server is set to authenticate players (\"online mode\")." },
 			},
 		},  -- cServer
 
@@ -2527,8 +2570,8 @@ World:ForEachEntity(
 						The following code snippet checks if the player holds a shovel.
 <pre class="prettyprint lang-lua">
 -- a_Player is a {{cPlayer}} object, possibly received as a hook param
-local HeldItem = a_Player:GetEquippedItem();
-if (cItemCategory:IsShovel(HeldItem.m_ItemType)) then
+local HeldItem = a_Player:GetEquippedItem()
+if (ItemCategory.IsShovel(HeldItem.m_ItemType)) then
 	-- It's a shovel
 end
 </pre>
diff --git a/MCServer/Plugins/Core b/MCServer/Plugins/Core
-Subproject 1b16c23c216d359e9fe0334c63deeecc347e69b
+Subproject 7cc99285ae5117418f657c3b295ca71f2b75b4f
diff --git a/MCServer/Plugins/Debuggers/Debuggers.lua b/MCServer/Plugins/Debuggers/Debuggers.lua
index 7e220952e..179935c08 100644
--- a/MCServer/Plugins/Debuggers/Debuggers.lua
+++ b/MCServer/Plugins/Debuggers/Debuggers.lua
@@ -33,6 +33,7 @@ function Initialize(Plugin)
 	PM:AddHook(cPluginManager.HOOK_PROJECTILE_HIT_BLOCK,         OnProjectileHitBlock);
 	PM:AddHook(cPluginManager.HOOK_CHUNK_UNLOADING,              OnChunkUnloading);
 	PM:AddHook(cPluginManager.HOOK_WORLD_STARTED,                OnWorldStarted);
+	PM:AddHook(cPluginManager.HOOK_PROJECTILE_HIT_BLOCK,         OnProjectileHitBlock);
 
 	-- _X: Disabled so that the normal operation doesn't interfere with anything
 	-- PM:AddHook(cPluginManager.HOOK_CHUNK_GENERATED,              OnChunkGenerated);
@@ -80,7 +81,8 @@ function Initialize(Plugin)
 	
 	TestBlockAreasString()
 	TestStringBase64()
-	TestUUIDFromName()
+	-- TestUUIDFromName()
+	-- TestRankMgr()
 
 	--[[
 	-- Test cCompositeChat usage in console-logging:
@@ -352,6 +354,18 @@ end
 
 
 
+function TestRankMgr()
+	LOG("Testing the rank manager")
+	cRankManager:AddRank("LuaRank")
+	cRankManager:AddGroup("LuaTestGroup")
+	cRankManager:AddGroupToRank("LuaTestGroup", "LuaRank")
+	cRankManager:AddPermissionToGroup("luaperm", "LuaTestGroup")
+end
+
+
+
+
+
 function TestSQLiteBindings()
 	LOG("Testing SQLite bindings...");
 	
@@ -1532,3 +1546,15 @@ end
 
 
 
+
+function OnProjectileHitBlock(a_ProjectileEntity, a_BlockX, a_BlockY, a_BlockZ, a_BlockFace, a_BlockHitPos)
+	-- This simple test is for testing issue #1326 - simply declaring this hook would crash the server upon call
+	LOG("Projectile hit block")
+	LOG("  Projectile EntityID: " .. a_ProjectileEntity:GetUniqueID())
+	LOG("  Block: {" .. a_BlockX .. ", " .. a_BlockY .. ", " .. a_BlockZ .. "}, face " .. a_BlockFace)
+	LOG("  HitPos: {" .. a_BlockHitPos.x .. ", " .. a_BlockHitPos.y .. ", " .. a_BlockHitPos.z .. "}")
+end
+
+
+
+
diff --git a/MCServer/crafting.txt b/MCServer/crafting.txt
index 3cda9052b..5bb0569f3 100644
--- a/MCServer/crafting.txt
+++ b/MCServer/crafting.txt
@@ -100,7 +100,7 @@ BrickSlab,       6  = BrickBlock,        1:1, 2:1, 3:1
 StonebrickSlab,  6  = StoneBrick,        1:1, 2:1, 3:1
 NetherbrickSlab, 6  = NetherBrick,       1:1, 2:1, 3:1
 Quartzslab,      6  = QuartzBlock,       1:1, 2:1, 3:1
-snow,			 6  = SnowBlock,         1:1, 2:1, 3:1
+snow,            6  = SnowBlock,         1:1, 2:1, 3:1
 
 
 # Stairs:
diff --git a/MCServer/profile_run.cmd b/MCServer/profile_run.cmd
index 58efea64a..6137e9d4d 100644
--- a/MCServer/profile_run.cmd
+++ b/MCServer/profile_run.cmd
@@ -12,7 +12,8 @@
 :: It expects the MS Performance tools installed in C:\Program Files\Microsoft Visual Studio 9.0\Team Tools\Performance Tools
 :: You can override this path by setting the pt environment variable prior to launching this script
 ::
-:: By default it will launch the release version of MCServer; set the app environment variable to another executable to run that instead.
+:: By default it will launch the 32-bit release version of MCServer; set the app environment variable to another executable to run that instead.
+:: Set the IsExecutablex64 env variable to \x64 to profile a 64-bit executable instead (available as the profile_run_x64.cmd script)
 :: Note that the app needs to be compiled with the "/PROFILE" flag in order for the profiling to work
 
 
@@ -45,7 +46,7 @@ if %outputdir%n == n (
 
 
 
-::Create the output directory, if it didn't exist
+:: Create the output directory, if it didn't exist
 mkdir %outputdir%
 
 
@@ -55,15 +56,15 @@ mkdir %outputdir%
 :: Start the profiler
 set outputname=profile.vsp
 set output=%outputdir%\%outputname%
-%pt%\vsperfcmd /start:sample /output:%output%
+%pt%%IsExecutablex64%\vsperfcmd /start:sample /output:%output%
 if errorlevel 1 goto haderror
 
 :: Launch the application via the profiler
-%pt%\vsperfcmd /launch:%app%
-if errorlevel 1 goto haderror
+%pt%%IsExecutablex64%\vsperfcmd /launch:%app%
+if errorlevel 1 goto haderrorshutdown
 
 :: Shut down the profiler (this command waits, until the application is terminated)
-%pt%\vsperfcmd /shutdown
+%pt%%IsExecutablex64%\vsperfcmd /shutdown
 if errorlevel 1 goto haderror
 
 
@@ -86,6 +87,10 @@ goto finished
 
 
 
+:haderrorshutdown
+echo An error was encountered, shutting down the profiler
+%pt%%IsExecutablex64%\vsperfcmd /shutdown
+
 :haderror
 echo An error was encountered
 pause
diff --git a/MCServer/profile_run_debug.cmd b/MCServer/profile_run_debug.cmd
index 8bf85f049..a9792541a 100644
--- a/MCServer/profile_run_debug.cmd
+++ b/MCServer/profile_run_debug.cmd
@@ -2,4 +2,4 @@
 :: This script uses the profile_run.cmd script to run profiling on the DebugProfile executable
 
 set app=MCServer_debug_profile.exe
-call profile_run.cmd
\ No newline at end of file
+call profile_run.cmd
diff --git a/MCServer/profile_run_x64.cmd b/MCServer/profile_run_x64.cmd
new file mode 100644
index 000000000..242136f4b
--- /dev/null
+++ b/MCServer/profile_run_x64.cmd
@@ -0,0 +1,5 @@
+@echo off
+:: This script uses the profile_run.cmd script to run profiling on a x64 release executable
+
+set IsExecutablex64=\x64
+call profile_run.cmd
diff --git a/Tools/AnvilStats/.gitignore b/Tools/AnvilStats/.gitignore
index 96210cfc9..f093bbe7d 100644
--- a/Tools/AnvilStats/.gitignore
+++ b/Tools/AnvilStats/.gitignore
@@ -1,3 +1,7 @@
+*.vcproj
+*.vcxproj
+*.sln
+*.user
 .xls
 Statistics.txt
 *.bmp
@@ -7,3 +11,4 @@ Profiling
 *.png
 world/
 *.html
+*.xls
diff --git a/Tools/AnvilStats/AnvilStats.sln b/Tools/AnvilStats/AnvilStats.sln
deleted file mode 100644
index 46bed8969..000000000
--- a/Tools/AnvilStats/AnvilStats.sln
+++ /dev/null
@@ -1,55 +0,0 @@
-Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Express 2013 for Windows Desktop
-VisualStudioVersion = 12.0.21005.1
-MinimumVisualStudioVersion = 10.0.40219.1
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "AnvilStats", "AnvilStats.vcxproj", "{CF996A5E-0A86-4004-9710-682B06B5AEBA}"
-	ProjectSection(ProjectDependencies) = postProject
-		{B61007AC-B557-4B67-A765-E468C0C3A821} = {B61007AC-B557-4B67-A765-E468C0C3A821}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlib", "..\..\lib\zlib\zlib.vcxproj", "{B61007AC-B557-4B67-A765-E468C0C3A821}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Win32 = Debug|Win32
-		DebugProfile|Win32 = DebugProfile|Win32
-		MinSizeRel|Win32 = MinSizeRel|Win32
-		Release profiled|Win32 = Release profiled|Win32
-		Release|Win32 = Release|Win32
-		ReleaseProfile|Win32 = ReleaseProfile|Win32
-		RelWithDebInfo|Win32 = RelWithDebInfo|Win32
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{CF996A5E-0A86-4004-9710-682B06B5AEBA}.Debug|Win32.ActiveCfg = Debug|Win32
-		{CF996A5E-0A86-4004-9710-682B06B5AEBA}.Debug|Win32.Build.0 = Debug|Win32
-		{CF996A5E-0A86-4004-9710-682B06B5AEBA}.DebugProfile|Win32.ActiveCfg = Debug|Win32
-		{CF996A5E-0A86-4004-9710-682B06B5AEBA}.DebugProfile|Win32.Build.0 = Debug|Win32
-		{CF996A5E-0A86-4004-9710-682B06B5AEBA}.MinSizeRel|Win32.ActiveCfg = Release|Win32
-		{CF996A5E-0A86-4004-9710-682B06B5AEBA}.MinSizeRel|Win32.Build.0 = Release|Win32
-		{CF996A5E-0A86-4004-9710-682B06B5AEBA}.Release profiled|Win32.ActiveCfg = Release profiled|Win32
-		{CF996A5E-0A86-4004-9710-682B06B5AEBA}.Release profiled|Win32.Build.0 = Release profiled|Win32
-		{CF996A5E-0A86-4004-9710-682B06B5AEBA}.Release|Win32.ActiveCfg = Release|Win32
-		{CF996A5E-0A86-4004-9710-682B06B5AEBA}.Release|Win32.Build.0 = Release|Win32
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-		{CF996A5E-0A86-4004-9710-682B06B5AEBA}.ReleaseProfile|Win32.Build.0 = Release|Win32
-		{CF996A5E-0A86-4004-9710-682B06B5AEBA}.RelWithDebInfo|Win32.ActiveCfg = Release|Win32
-		{CF996A5E-0A86-4004-9710-682B06B5AEBA}.RelWithDebInfo|Win32.Build.0 = Release|Win32
-		{B61007AC-B557-4B67-A765-E468C0C3A821}.Debug|Win32.ActiveCfg = Debug|Win32
-		{B61007AC-B557-4B67-A765-E468C0C3A821}.Debug|Win32.Build.0 = Debug|Win32
-		{B61007AC-B557-4B67-A765-E468C0C3A821}.DebugProfile|Win32.ActiveCfg = DebugProfile|Win32
-		{B61007AC-B557-4B67-A765-E468C0C3A821}.DebugProfile|Win32.Build.0 = DebugProfile|Win32
-		{B61007AC-B557-4B67-A765-E468C0C3A821}.MinSizeRel|Win32.ActiveCfg = MinSizeRel|Win32
-		{B61007AC-B557-4B67-A765-E468C0C3A821}.MinSizeRel|Win32.Build.0 = MinSizeRel|Win32
-		{B61007AC-B557-4B67-A765-E468C0C3A821}.Release profiled|Win32.ActiveCfg = Release|Win32
-		{B61007AC-B557-4B67-A765-E468C0C3A821}.Release profiled|Win32.Build.0 = Release|Win32
-		{B61007AC-B557-4B67-A765-E468C0C3A821}.Release|Win32.ActiveCfg = Release|Win32
-		{B61007AC-B557-4B67-A765-E468C0C3A821}.Release|Win32.Build.0 = Release|Win32
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-		{B61007AC-B557-4B67-A765-E468C0C3A821}.RelWithDebInfo|Win32.ActiveCfg = RelWithDebInfo|Win32
-		{B61007AC-B557-4B67-A765-E468C0C3A821}.RelWithDebInfo|Win32.Build.0 = RelWithDebInfo|Win32
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-EndGlobal
diff --git a/Tools/AnvilStats/AnvilStats.vcproj b/Tools/AnvilStats/AnvilStats.vcproj
deleted file mode 100644
index c7a2e9390..000000000
--- a/Tools/AnvilStats/AnvilStats.vcproj
+++ /dev/null
@@ -1,468 +0,0 @@
-<?xml version="1.0" encoding="windows-1250"?>
-<VisualStudioProject
-	ProjectType="Visual C++"
-	Version="9,00"
-	Name="AnvilStats"
-	ProjectGUID="{CF996A5E-0A86-4004-9710-682B06B5AEBA}"
-	RootNamespace="AnvilStats"
-	Keyword="Win32Proj"
-	TargetFrameworkVersion="196613"
-	>
-	<Platforms>
-		<Platform
-			Name="Win32"
-		/>
-	</Platforms>
-	<ToolFiles>
-	</ToolFiles>
-	<Configurations>
-		<Configuration
-			Name="Debug|Win32"
-			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
-			IntermediateDirectory="$(ConfigurationName)"
-			ConfigurationType="1"
-			CharacterSet="2"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				Optimization="0"
-				AdditionalIncludeDirectories="&quot;..\..\lib&quot;"
-				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE"
-				MinimalRebuild="true"
-				BasicRuntimeChecks="3"
-				RuntimeLibrary="1"
-				UsePrecompiledHeader="2"
-				PrecompiledHeaderThrough="Globals.h"
-				WarningLevel="3"
-				DebugInformationFormat="4"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLinkerTool"
-				AdditionalDependencies="ws2_32.lib"
-				LinkIncremental="2"
-				GenerateDebugInformation="true"
-				SubSystem="1"
-				StackReserveSize="16777216"
-				TargetMachine="1"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCManifestTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCAppVerifierTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-		<Configuration
-			Name="Release|Win32"
-			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
-			IntermediateDirectory="$(ConfigurationName)"
-			ConfigurationType="1"
-			CharacterSet="2"
-			WholeProgramOptimization="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				Optimization="2"
-				EnableIntrinsicFunctions="true"
-				AdditionalIncludeDirectories="&quot;..\..\lib&quot;"
-				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE"
-				RuntimeLibrary="0"
-				EnableFunctionLevelLinking="true"
-				UsePrecompiledHeader="2"
-				PrecompiledHeaderThrough="Globals.h"
-				WarningLevel="3"
-				DebugInformationFormat="3"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLinkerTool"
-				AdditionalDependencies="ws2_32.lib"
-				LinkIncremental="1"
-				GenerateDebugInformation="true"
-				SubSystem="1"
-				StackReserveSize="16777216"
-				OptimizeReferences="2"
-				EnableCOMDATFolding="2"
-				TargetMachine="1"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCManifestTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCAppVerifierTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-		<Configuration
-			Name="Release profiled|Win32"
-			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
-			IntermediateDirectory="$(ConfigurationName)"
-			ConfigurationType="1"
-			CharacterSet="2"
-			WholeProgramOptimization="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				Optimization="2"
-				EnableIntrinsicFunctions="true"
-				AdditionalIncludeDirectories="&quot;..\..\lib&quot;"
-				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE"
-				RuntimeLibrary="0"
-				EnableFunctionLevelLinking="true"
-				UsePrecompiledHeader="2"
-				PrecompiledHeaderThrough="Globals.h"
-				WarningLevel="3"
-				DebugInformationFormat="3"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLinkerTool"
-				AdditionalDependencies="ws2_32.lib"
-				LinkIncremental="1"
-				GenerateDebugInformation="true"
-				SubSystem="1"
-				StackReserveSize="16777216"
-				OptimizeReferences="2"
-				EnableCOMDATFolding="2"
-				TargetMachine="1"
-				Profile="true"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCManifestTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCAppVerifierTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-	</Configurations>
-	<References>
-	</References>
-	<Files>
-		<Filter
-			Name="Source Files"
-			Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
-			UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
-			>
-			<File
-				RelativePath=".\AnvilStats.cpp"
-				>
-			</File>
-			<File
-				RelativePath=".\BiomeMap.cpp"
-				>
-			</File>
-			<File
-				RelativePath=".\BiomeMap.h"
-				>
-			</File>
-			<File
-				RelativePath=".\Callback.h"
-				>
-			</File>
-			<File
-				RelativePath=".\ChunkExtract.cpp"
-				>
-			</File>
-			<File
-				RelativePath=".\ChunkExtract.h"
-				>
-			</File>
-			<File
-				RelativePath=".\Globals.cpp"
-				>
-				<FileConfiguration
-					Name="Debug|Win32"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-						UsePrecompiledHeader="1"
-					/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="Release|Win32"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-						UsePrecompiledHeader="1"
-					/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="Release profiled|Win32"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-						UsePrecompiledHeader="1"
-					/>
-				</FileConfiguration>
-			</File>
-			<File
-				RelativePath=".\Globals.h"
-				>
-			</File>
-			<File
-				RelativePath=".\HeightBiomeMap.cpp"
-				>
-			</File>
-			<File
-				RelativePath=".\HeightBiomeMap.h"
-				>
-			</File>
-			<File
-				RelativePath=".\HeightMap.cpp"
-				>
-			</File>
-			<File
-				RelativePath=".\HeightMap.h"
-				>
-			</File>
-			<File
-				RelativePath=".\ImageComposingCallback.cpp"
-				>
-			</File>
-			<File
-				RelativePath=".\ImageComposingCallback.h"
-				>
-			</File>
-			<File
-				RelativePath=".\Processor.cpp"
-				>
-			</File>
-			<File
-				RelativePath=".\Processor.h"
-				>
-			</File>
-			<File
-				RelativePath=".\SpringStats.cpp"
-				>
-			</File>
-			<File
-				RelativePath=".\SpringStats.h"
-				>
-			</File>
-			<File
-				RelativePath=".\Statistics.cpp"
-				>
-			</File>
-			<File
-				RelativePath=".\Statistics.h"
-				>
-			</File>
-			<File
-				RelativePath=".\Utils.cpp"
-				>
-			</File>
-			<File
-				RelativePath=".\Utils.h"
-				>
-			</File>
-		</Filter>
-		<Filter
-			Name="shared"
-			>
-			<File
-				RelativePath="..\..\src\OSSupport\CriticalSection.cpp"
-				>
-			</File>
-			<File
-				RelativePath="..\..\src\OSSupport\CriticalSection.h"
-				>
-			</File>
-			<File
-				RelativePath="..\..\src\Endianness.h"
-				>
-			</File>
-			<File
-				RelativePath="..\..\src\OSSupport\Event.cpp"
-				>
-			</File>
-			<File
-				RelativePath="..\..\src\OSSupport\Event.h"
-				>
-			</File>
-			<File
-				RelativePath="..\..\src\WorldStorage\FastNBT.cpp"
-				>
-				<FileConfiguration
-					Name="Debug|Win32"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-						PreprocessorDefinitions="NBT_RESERVE_SIZE=10000"
-					/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="Release|Win32"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-						PreprocessorDefinitions="NBT_RESERVE_SIZE=10000"
-					/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="Release profiled|Win32"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-						PreprocessorDefinitions="NBT_RESERVE_SIZE=10000"
-					/>
-				</FileConfiguration>
-			</File>
-			<File
-				RelativePath="..\..\src\WorldStorage\FastNBT.h"
-				>
-			</File>
-			<File
-				RelativePath="..\..\src\OSSupport\File.cpp"
-				>
-			</File>
-			<File
-				RelativePath="..\..\src\OSSupport\File.h"
-				>
-			</File>
-			<File
-				RelativePath="..\..\src\OSSupport\GZipFile.cpp"
-				>
-			</File>
-			<File
-				RelativePath="..\..\src\OSSupport\GZipFile.h"
-				>
-			</File>
-			<File
-				RelativePath="..\..\src\OSSupport\IsThread.cpp"
-				>
-			</File>
-			<File
-				RelativePath="..\..\src\OSSupport\IsThread.h"
-				>
-			</File>
-			<File
-				RelativePath="..\..\src\StringUtils.cpp"
-				>
-			</File>
-			<File
-				RelativePath="..\..\src\StringUtils.h"
-				>
-			</File>
-		</Filter>
-		<File
-			RelativePath=".\AnvilStats.txt"
-			>
-		</File>
-	</Files>
-	<Globals>
-	</Globals>
-</VisualStudioProject>
diff --git a/Tools/AnvilStats/CMakeLists.txt b/Tools/AnvilStats/CMakeLists.txt
new file mode 100644
index 000000000..557a4c17a
--- /dev/null
+++ b/Tools/AnvilStats/CMakeLists.txt
@@ -0,0 +1,144 @@
+
+cmake_minimum_required (VERSION 2.8.3)
+
+project (AnvilStats)
+
+include(../../SetFlags.cmake)
+
+set_flags()
+set_lib_flags()
+
+
+# Set include paths to the used libraries:
+include_directories("../../lib")
+include_directories("../../src")
+
+
+
+function(flatten_files arg1)
+	set(res "")
+	foreach(f ${${arg1}})
+		get_filename_component(f ${f} ABSOLUTE)
+		list(APPEND res ${f})
+	endforeach()
+	set(${arg1} "${res}" PARENT_SCOPE)
+endfunction()
+
+add_subdirectory(../../lib/zlib ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_FILES_DIRECTORY}/lib/zlib)
+
+set_exe_flags()
+
+# Include the shared files:
+set(SHARED_SRC
+	../../src/ByteBuffer.cpp
+	../../src/StringUtils.cpp
+	../../src/LoggerListeners.cpp
+	../../src/Logger.cpp
+	../../src/WorldStorage/FastNBT.cpp
+	../BiomeVisualiser/BiomeColors.cpp
+)
+
+set(SHARED_HDR
+	../../src/ByteBuffer.h
+	../../src/StringUtils.h
+	../../src/LoggerListeners.h
+	../../src/Logger.h
+	../../src/WorldStorage/FastNBT.h
+	../BiomeVisualiser/BiomeColors.h
+)
+
+set(SHARED_OSS_SRC
+	../../src/OSSupport/CriticalSection.cpp
+	../../src/OSSupport/Event.cpp
+	../../src/OSSupport/File.cpp
+	../../src/OSSupport/GZipFile.cpp
+	../../src/OSSupport/IsThread.cpp
+	../../src/OSSupport/Timer.cpp
+)
+
+set(SHARED_OSS_HDR
+	../../src/OSSupport/CriticalSection.h
+	../../src/OSSupport/Event.h
+	../../src/OSSupport/File.h
+	../../src/OSSupport/GZipFile.h
+	../../src/OSSupport/IsThread.h
+	../../src/OSSupport/Timer.h
+)
+
+flatten_files(SHARED_SRC)
+flatten_files(SHARED_HDR)
+flatten_files(SHARED_OSS_SRC)
+flatten_files(SHARED_OSS_HDR)
+source_group("Shared" FILES ${SHARED_SRC} ${SHARED_HDR})
+source_group("Shared\\OSSupport" FILES ${SHARED_OSS_SRC} ${SHARED_OSS_HDR})
+
+
+
+# Include the main source files:
+set(SOURCES
+	AnvilStats.cpp
+	BiomeMap.cpp
+	ChunkExtract.cpp
+	Globals.cpp
+	HeightBiomeMap.cpp
+	HeightMap.cpp
+	ImageComposingCallback.cpp
+	Processor.cpp
+	SpringStats.cpp
+	Statistics.cpp
+	Utils.cpp
+)
+
+set(HEADERS
+	BiomeMap.h
+	Callback.h
+	ChunkExtract.h
+	Globals.h
+	HeightBiomeMap.h
+	HeightMap.h
+	ImageComposingCallback.h
+	Processor.h
+	SpringStats.h
+	Statistics.h
+	Utils.h
+
+	AnvilStats.txt
+)
+
+source_group("" FILES ${SOURCES} ${HEADERS})
+
+add_definitions(-DNBT_RESERVE_SIZE=10000)
+
+add_executable(AnvilStats
+	${SOURCES}
+	${HEADERS}
+	${SHARED_SRC}
+	${SHARED_HDR}
+	${SHARED_OSS_SRC}
+	${SHARED_OSS_HDR}
+)
+
+
+target_link_libraries(AnvilStats zlib)
+
+
+
+
+
+# Under MSVC we need to enlarge the default stack size for the executable:
+if (MSVC)
+	get_target_property(TEMP AnvilStats LINK_FLAGS)
+	if (TEMP STREQUAL "TEMP-NOTFOUND")
+	  SET(TEMP "") # set to empty string
+		message("LINKER_FLAGS not found")
+	else ()
+	  SET(TEMP "${TEMP} ") # a space to cleanly separate from existing content
+		message("LINKER_FLAGS: ${LINKER_FLAGS}")
+	endif ()
+	# append our values
+	SET(TEMP "${TEMP}/STACK:16777216")
+	set_target_properties(AnvilStats PROPERTIES LINK_FLAGS ${TEMP})
+endif ()
+
+
+
diff --git a/Tools/AnvilStats/Globals.h b/Tools/AnvilStats/Globals.h
index df1430cc4..21d54739a 100644
--- a/Tools/AnvilStats/Globals.h
+++ b/Tools/AnvilStats/Globals.h
@@ -241,6 +241,17 @@ public:
 
 
 
+/** Clamp value to the specified range. */
+template <typename T>
+T Clamp(T a_Value, T a_Min, T a_Max)
+{
+	return (a_Value < a_Min) ? a_Min : ((a_Value > a_Max) ? a_Max : a_Value);
+}
+
+
+
+
+
 // Common headers (part 2, with macros):
 #include "../../src/ChunkDef.h"
 #include "../../src/BlockID.h"
diff --git a/Tools/AnvilStats/Processor.cpp b/Tools/AnvilStats/Processor.cpp
index a16f78c18..6c4bb0ad5 100644
--- a/Tools/AnvilStats/Processor.cpp
+++ b/Tools/AnvilStats/Processor.cpp
@@ -28,6 +28,7 @@ cProcessor::cThread::cThread(cCallback & a_Callback, cProcessor & a_ParentProces
 	m_Callback(a_Callback),
 	m_ParentProcessor(a_ParentProcessor)
 {
+	LOG("Created a new thread: %p", this);
 	super::Start();
 }
 
@@ -35,11 +36,20 @@ cProcessor::cThread::cThread(cCallback & a_Callback, cProcessor & a_ParentProces
 
 
 
+void cProcessor::cThread::WaitForStart(void)
+{
+	m_HasStarted.Wait();
+}
+
+
+
+
+
 void cProcessor::cThread::Execute(void)
 {
-	LOG("Started a new thread: %d", cIsThread::GetCurrentID());
+	LOG("Started a new thread: %p, ID %d", this, cIsThread::GetCurrentID());
 	
-	m_ParentProcessor.m_ThreadsHaveStarted.Set();
+	m_HasStarted.Set();
 	
 	for (;;)
 	{
@@ -52,7 +62,7 @@ void cProcessor::cThread::Execute(void)
 		ProcessFile(FileName);
 	}  // for-ever
 	
-	LOG("Thread %d terminated", cIsThread::GetCurrentID());
+	LOG("Thread %p (ID %d) terminated", this, cIsThread::GetCurrentID());
 }
 
 
@@ -522,20 +532,18 @@ void cProcessor::ProcessWorld(const AString & a_WorldFolder, cCallbackFactory &
 	#endif  // _DEBUG
 	//*/
 	
+	// Start all the threads:
 	for (int i = 0; i < NumThreads; i++)
 	{
 		cCallback * Callback = a_CallbackFactory.GetNewCallback();
 		m_Threads.push_back(new cThread(*Callback, *this));
 	}
 
-	// Wait for the first thread to start processing:
-	m_ThreadsHaveStarted.Wait();
-	
-	// Wait for all threads to finish
-	// simply by calling each thread's destructor sequentially
+	// Wait for all threads to finish:
 	LOG("Waiting for threads to finish");
 	for (cThreads::iterator itr = m_Threads.begin(), end = m_Threads.end(); itr != end; ++itr)
 	{
+		(*itr)->WaitForStart();
 		delete *itr;
 	}  // for itr - m_Threads[]
 	LOG("Processor finished");
diff --git a/Tools/AnvilStats/Processor.h b/Tools/AnvilStats/Processor.h
index 72fea3081..db50ec619 100644
--- a/Tools/AnvilStats/Processor.h
+++ b/Tools/AnvilStats/Processor.h
@@ -30,6 +30,7 @@ class cProcessor
 		
 		cCallback &  m_Callback;
 		cProcessor & m_ParentProcessor;
+		cEvent m_HasStarted;
 		
 		// cIsThread override:
 		virtual void Execute(void) override;
@@ -48,6 +49,9 @@ class cProcessor
 
 	public:
 		cThread(cCallback & a_Callback, cProcessor & a_ParentProcessor);
+
+		/** Waits until the thread starts processing the callback code. */
+		void WaitForStart(void);
 	} ;
 	
 	typedef std::vector<cThread *> cThreads;
@@ -65,10 +69,12 @@ protected:
 	AStringList      m_FileQueue;
 	
 	cThreads m_Threads;
-	cEvent   m_ThreadsHaveStarted;  // This is signalled by each thread to notify the parent thread that it can start waiting for those threads
-	
+
+
+	/** Populates m_FileQueue with Anvil files from the specified folder. */
 	void PopulateFileQueue(const AString & a_WorldFolder);
 	
+	/** Returns one filename from m_FileQueue, and removes the name from the queue. */
 	AString GetOneFileName(void);
 } ;
 
diff --git a/Tools/AnvilStats/Statistics.cpp b/Tools/AnvilStats/Statistics.cpp
index f7519fd37..c8a98b488 100644
--- a/Tools/AnvilStats/Statistics.cpp
+++ b/Tools/AnvilStats/Statistics.cpp
@@ -26,9 +26,11 @@ cStatistics::cStats::cStats(void) :
 	m_MinChunkZ(0x7fffffff),
 	m_MaxChunkZ(0x80000000)
 {
-	memset(m_BiomeCounts, 0, sizeof(m_BiomeCounts));
-	memset(m_BlockCounts, 0, sizeof(m_BlockCounts));
-	memset(m_SpawnerEntity, 0, sizeof(m_SpawnerEntity));
+	memset(m_BiomeCounts,          0, sizeof(m_BiomeCounts));
+	memset(m_BlockCounts,          0, sizeof(m_BlockCounts));
+	memset(m_PerHeightBlockCounts, 0, sizeof(m_PerHeightBlockCounts));
+	memset(m_PerHeightSpawners,    0, sizeof(m_PerHeightSpawners));
+	memset(m_SpawnerEntity,        0, sizeof(m_SpawnerEntity));
 }
 
 
@@ -46,6 +48,11 @@ void cStatistics::cStats::Add(const cStatistics::cStats & a_Stats)
 		for (int j = 0; j <= 255; j++)
 		{
 			m_BlockCounts[i][j] += a_Stats.m_BlockCounts[i][j];
+			m_PerHeightBlockCounts[i][j] += a_Stats.m_PerHeightBlockCounts[i][j];
+		}
+		for (int j = 0; j < ARRAYCOUNT(m_PerHeightSpawners[0]); j++)
+		{
+			m_PerHeightSpawners[i][j] += a_Stats.m_PerHeightSpawners[i][j];
 		}
 	}
 	for (int i = 0; i < ARRAYCOUNT(m_SpawnerEntity); i++)
@@ -149,6 +156,7 @@ bool cStatistics::OnSection
 	
 	for (int y = 0; y < 16; y++)
 	{
+		int Height = (int)a_Y * 16 + y;
 		for (int z = 0; z < 16; z++)
 		{
 			for (int x = 0; x < 16; x++)
@@ -156,6 +164,7 @@ bool cStatistics::OnSection
 				unsigned char Biome = m_BiomeData[x + 16 * z];  // Cannot use cChunkDef, different datatype
 				unsigned char BlockType = cChunkDef::GetBlock(a_BlockTypes, x, y, z);
 				m_Stats.m_BlockCounts[Biome][BlockType] += 1;
+				m_Stats.m_PerHeightBlockCounts[Height][BlockType] += 1;
 			}
 		}
 	}
@@ -259,16 +268,27 @@ bool cStatistics::OnTileTick(
 
 void cStatistics::OnSpawner(cParsedNBT & a_NBT, int a_TileEntityTag)
 {
+	// Get the spawned entity type:
 	int EntityIDTag = a_NBT.FindChildByName(a_TileEntityTag, "EntityId");
 	if ((EntityIDTag < 0) || (a_NBT.GetType(EntityIDTag) != TAG_String))
 	{
 		return;
 	}
 	eEntityType Ent = GetEntityType(a_NBT.GetString(EntityIDTag));
-	if (Ent < ARRAYCOUNT(m_Stats.m_SpawnerEntity))
+	if (Ent >= ARRAYCOUNT(m_Stats.m_SpawnerEntity))
 	{
-		m_Stats.m_SpawnerEntity[Ent] += 1;
+		return;
+	}
+	m_Stats.m_SpawnerEntity[Ent] += 1;
+	
+	// Get the spawner pos:
+	int PosYTag = a_NBT.FindChildByName(a_TileEntityTag, "y");
+	if ((PosYTag < 0) || (a_NBT.GetType(PosYTag) != TAG_Int))
+	{
+		return;
 	}
+	int BlockY = Clamp(a_NBT.GetInt(PosYTag), 0, 255);
+	m_Stats.m_PerHeightSpawners[BlockY][Ent] += 1;
 }
 
 
@@ -316,10 +336,14 @@ cStatisticsFactory::~cStatisticsFactory()
 	SaveBiomes();
 	LOG("    BlockTypes.xls");
 	SaveBlockTypes();
+	LOG("    PerHeightBlockTypes.xls");
+	SavePerHeightBlockTypes();
 	LOG("    BiomeBlockTypes.xls");
 	SaveBiomeBlockTypes();
 	LOG("    Spawners.xls");
 	SaveSpawners();
+	LOG("    PerHeightSpawners.xls");
+	SavePerHeightSpawners();
 }
 
 
@@ -395,6 +419,61 @@ void cStatisticsFactory::SaveBlockTypes(void)
 
 
 
+void cStatisticsFactory::SavePerHeightBlockTypes(void)
+{
+	// Export as two tables: biomes 0-127 and 128-255, because OpenOffice doesn't support more than 256 columns
+
+	cFile f;
+	if (!f.Open("PerHeightBlockTypes.xls", cFile::fmWrite))
+	{
+		LOG("Cannot write to file PerHeightBlockTypes.xls. Statistics not written.");
+		return;
+	}
+	
+	// Write header:
+	f.Printf("Blocks 0 - 127:\nHeight");
+	for (int i = 0; i < 128; i++)
+	{
+		f.Printf("\t%s(%d)", GetBlockTypeString(i), i);
+	}
+	f.Printf("\n");
+	
+	// Write first half:
+	for (int y = 0; y < 256; y++)
+	{
+		f.Printf("%d", y);
+		for (int BlockType = 0; BlockType < 128; BlockType++)
+		{
+			f.Printf("\t%llu", m_CombinedStats.m_PerHeightBlockCounts[y][BlockType]);
+		}  // for BlockType
+		f.Printf("\n");
+	}  // for y - height (0 - 127)
+	f.Printf("\n");
+
+	// Write second header:
+	f.Printf("Blocks 128 - 255:\nHeight");
+	for (int i = 128; i < 256; i++)
+	{
+		f.Printf("\t%s(%d)", GetBlockTypeString(i), i);
+	}
+	f.Printf("\n");
+	
+	// Write second half:
+	for (int y = 0; y < 256; y++)
+	{
+		f.Printf("%d", y);
+		for (int BlockType = 128; BlockType < 256; BlockType++)
+		{
+			f.Printf("\t%llu", m_CombinedStats.m_PerHeightBlockCounts[y][BlockType]);
+		}  // for BlockType
+		f.Printf("\n");
+	}  // for y - height (0 - 127)
+}
+
+
+
+
+
 void cStatisticsFactory::SaveBiomeBlockTypes(void)
 {
 	// Export as two tables: biomes 0-127 and 128-255, because OpenOffice doesn't support more than 256 columns
@@ -521,3 +600,41 @@ void cStatisticsFactory::SaveSpawners(void)
 
 
 
+
+void cStatisticsFactory::SavePerHeightSpawners(void)
+{
+	cFile f;
+	if (!f.Open("PerHeightSpawners.xls", cFile::fmWrite))
+	{
+		LOG("Cannot write to file PerHeightSpawners.xls. Statistics not written.");
+		return;
+	}
+	
+	// Write header:
+	f.Printf("Height\tTotal");
+	for (int i = 0; i < entMax; i++)
+	{
+		f.Printf("\t%s", GetEntityTypeString((eEntityType)i));
+	}
+	f.Printf("\n");
+
+	// Write individual lines:
+	for (int y = 0; y < 256; y++)
+	{
+		UInt64 Total = 0;
+		for (int i = 0; i < entMax; i++)
+		{
+			Total += m_CombinedStats.m_PerHeightSpawners[y][i];
+		}
+		f.Printf("%d\t%llu", y, Total);
+		for (int i = 0; i < entMax; i++)
+		{
+			f.Printf("\t%llu", m_CombinedStats.m_PerHeightSpawners[y][i]);
+		}
+		f.Printf("\n");
+	}
+}
+
+
+
+
diff --git a/Tools/AnvilStats/Statistics.h b/Tools/AnvilStats/Statistics.h
index 53e353f22..1b012e283 100644
--- a/Tools/AnvilStats/Statistics.h
+++ b/Tools/AnvilStats/Statistics.h
@@ -31,6 +31,8 @@ public:
 		UInt64 m_NumEntities;
 		UInt64 m_NumTileEntities;
 		UInt64 m_NumTileTicks;
+		UInt64 m_PerHeightBlockCounts[256][256];  // First dimension is the height, second dimension is BlockType
+		UInt64 m_PerHeightSpawners[256][entMax + 1];  // First dimension is the height, second dimension is spawned entity type
 		int m_MinChunkX, m_MaxChunkX;  // X coords range
 		int m_MinChunkZ, m_MaxChunkZ;  // Z coords range
 		
@@ -74,6 +76,8 @@ protected:
 	
 	virtual bool OnEmptySection(unsigned char a_Y) override;
 	
+	virtual bool OnSectionsFinished(void) override { return false; }  // continue processing
+
 	virtual bool OnEntity(
 		const AString & a_EntityType,
 		double a_PosX, double a_PosY, double a_PosZ,
@@ -128,9 +132,11 @@ protected:
 	void JoinResults(void);
 	void SaveBiomes(void);
 	void SaveBlockTypes(void);
+	void SavePerHeightBlockTypes(void);
 	void SaveBiomeBlockTypes(void);
 	void SaveStatistics(void);
 	void SaveSpawners(void);
+	void SavePerHeightSpawners(void);
 } ;
 
 
diff --git a/Tools/AnvilStats/Utils.cpp b/Tools/AnvilStats/Utils.cpp
index baa87bd69..d7543cb4c 100644
--- a/Tools/AnvilStats/Utils.cpp
+++ b/Tools/AnvilStats/Utils.cpp
@@ -272,7 +272,7 @@ extern const char * GetEntityTypeString(eEntityType a_EntityType)
 int GetNumCores(void)
 {
 	// Get number of cores by querying the system process affinity mask (Windows-specific)
-	DWORD Affinity, ProcAffinity;
+	DWORD_PTR Affinity, ProcAffinity;
 	GetProcessAffinityMask(GetCurrentProcess(), &ProcAffinity, &Affinity);
 	int NumCores = 0;
 	while (Affinity > 0)
diff --git a/lib/tolua++/src/lib/tolua_push.c b/lib/tolua++/src/lib/tolua_push.c
index 947f0e7a5..73a5f6ec0 100644
--- a/lib/tolua++/src/lib/tolua_push.c
+++ b/lib/tolua++/src/lib/tolua_push.c
@@ -16,6 +16,7 @@
 #include "../../../lua/src/lauxlib.h"
 
 #include <stdlib.h>
+#include <assert.h>
 
 TOLUA_API void tolua_pushvalue (lua_State* L, int lo)
 {
@@ -55,12 +56,14 @@ TOLUA_API void tolua_pushusertype (lua_State* L, void* value, const char* type)
  else
  {
   luaL_getmetatable(L, type);
+  assert(!lua_isnil(L, -1));  /* Failure here means that the usertype is unknown to ToLua. Check what type you're pushing. */
   lua_pushstring(L,"tolua_ubox");
   lua_rawget(L,-2);        /* stack: mt ubox */
-  if (lua_isnil(L, -1)) {
-	  lua_pop(L, 1);
-	  lua_pushstring(L, "tolua_ubox");
-	  lua_rawget(L, LUA_REGISTRYINDEX);
+  if (lua_isnil(L, -1))
+  {
+   lua_pop(L, 1);
+   lua_pushstring(L, "tolua_ubox");
+   lua_rawget(L, LUA_REGISTRYINDEX);
   };
   lua_pushlightuserdata(L,value);
   lua_rawget(L,-2);                       /* stack: mt ubox ubox[u] */
diff --git a/src/AllocationPool.h b/src/AllocationPool.h
index 3c9dbe8c9..61431a548 100644
--- a/src/AllocationPool.h
+++ b/src/AllocationPool.h
@@ -3,7 +3,7 @@
 
 #include <memory>
 
-template<class T>
+template <class T>
 class cAllocationPool
 {
 public:
@@ -34,7 +34,7 @@ public:
 
 /** Allocates memory storing unused elements in a linked list. Keeps at least NumElementsInReserve
 elements in the list unless malloc fails so that the program has a reserve to handle OOM.**/
-template<class T, size_t NumElementsInReserve>
+template <class T, size_t NumElementsInReserve>
 class cListAllocationPool : public cAllocationPool<T>
 {
 	public:
diff --git a/src/Bindings/AllToLua.pkg b/src/Bindings/AllToLua.pkg
index 88faa9dfc..37e6aecd2 100644
--- a/src/Bindings/AllToLua.pkg
+++ b/src/Bindings/AllToLua.pkg
@@ -67,7 +67,6 @@ $cfile "../Root.h"
 $cfile "../Cuboid.h"
 $cfile "../BoundingBox.h"
 $cfile "../Tracer.h"
-$cfile "../Group.h"
 $cfile "../BlockArea.h"
 $cfile "../Generating/ChunkDesc.h"
 $cfile "../CraftingRecipes.h"
diff --git a/src/Bindings/CMakeLists.txt b/src/Bindings/CMakeLists.txt
index 54152668a..7a1769e9a 100644
--- a/src/Bindings/CMakeLists.txt
+++ b/src/Bindings/CMakeLists.txt
@@ -11,6 +11,7 @@ SET (SRCS
     LuaState.cpp
     LuaWindow.cpp
     ManualBindings.cpp
+    ManualBindings_RankManager.cpp
     Plugin.cpp
     PluginLua.cpp
     PluginManager.cpp
@@ -96,7 +97,6 @@ set(BINDING_DEPENDENCIES
     ../Entities/HangingEntity.h
     ../Entities/ItemFrame.h
     ../Generating/ChunkDesc.h
-    ../Group.h
     ../Inventory.h
     ../Item.h
     ../ItemGrid.h
diff --git a/src/Bindings/LuaState.cpp b/src/Bindings/LuaState.cpp
index e123a87c9..9fe93ccc2 100644
--- a/src/Bindings/LuaState.cpp
+++ b/src/Bindings/LuaState.cpp
@@ -460,7 +460,43 @@ void cLuaState::Push(const Vector3d & a_Vector)
 {
 	ASSERT(IsValid());
 
-	tolua_pushusertype(m_LuaState, (void *)&a_Vector, "Vector3d");
+	tolua_pushusertype(m_LuaState, (void *)&a_Vector, "Vector3<double>");
+	m_NumCurrentFunctionArgs += 1;
+}
+
+
+
+
+
+void cLuaState::Push(const Vector3d * a_Vector)
+{
+	ASSERT(IsValid());
+
+	tolua_pushusertype(m_LuaState, (void *)a_Vector, "Vector3<double>");
+	m_NumCurrentFunctionArgs += 1;
+}
+
+
+
+
+
+void cLuaState::Push(const Vector3i & a_Vector)
+{
+	ASSERT(IsValid());
+
+	tolua_pushusertype(m_LuaState, (void *)&a_Vector, "Vector3<int>");
+	m_NumCurrentFunctionArgs += 1;
+}
+
+
+
+
+
+void cLuaState::Push(const Vector3i * a_Vector)
+{
+	ASSERT(IsValid());
+
+	tolua_pushusertype(m_LuaState, (void *)a_Vector, "Vector3<int>");
 	m_NumCurrentFunctionArgs += 1;
 }
 
@@ -708,11 +744,11 @@ void cLuaState::Push(TakeDamageInfo * a_TDI)
 
 
 
-void cLuaState::Push(Vector3i * a_Vector)
+void cLuaState::Push(Vector3d * a_Vector)
 {
 	ASSERT(IsValid());
 
-	tolua_pushusertype(m_LuaState, a_Vector, "Vector3i");
+	tolua_pushusertype(m_LuaState, a_Vector, "Vector3<double>");
 	m_NumCurrentFunctionArgs += 1;
 }
 
@@ -720,11 +756,11 @@ void cLuaState::Push(Vector3i * a_Vector)
 
 
 
-void cLuaState::Push(Vector3d * a_Vector)
+void cLuaState::Push(Vector3i * a_Vector)
 {
 	ASSERT(IsValid());
 
-	tolua_pushusertype(m_LuaState, a_Vector, "Vector3d");
+	tolua_pushusertype(m_LuaState, a_Vector, "Vector3<int>");
 	m_NumCurrentFunctionArgs += 1;
 }
 
diff --git a/src/Bindings/LuaState.h b/src/Bindings/LuaState.h
index afac77ce8..eeb93fd4d 100644
--- a/src/Bindings/LuaState.h
+++ b/src/Bindings/LuaState.h
@@ -186,6 +186,9 @@ public:
 	void Push(const HTTPRequest * a_Request);
 	void Push(const HTTPTemplateRequest * a_Request);
 	void Push(const Vector3d & a_Vector);
+	void Push(const Vector3d * a_Vector);
+	void Push(const Vector3i & a_Vector);
+	void Push(const Vector3i * a_Vector);
 
 	// Push a value onto the stack (keep alpha-sorted):
 	void Push(bool a_Value);
diff --git a/src/Bindings/ManualBindings.cpp b/src/Bindings/ManualBindings.cpp
index 5aa76eee3..b2c57e52d 100644
--- a/src/Bindings/ManualBindings.cpp
+++ b/src/Bindings/ManualBindings.cpp
@@ -301,11 +301,11 @@ static int tolua_cFile_GetFolderContents(lua_State * tolua_S)
 
 
 
-template<
+template <
 	class Ty1,
 	class Ty2,
 	bool (Ty1::*Func1)(const AString &, cItemCallback<Ty2> &)
-	>
+>
 static int tolua_DoWith(lua_State* tolua_S)
 {
 	int NumArgs = lua_gettop(tolua_S) - 1;  /* This includes 'self' */
@@ -395,7 +395,7 @@ static int tolua_DoWith(lua_State* tolua_S)
 
 
 
-template<
+template <
 	class Ty1,
 	class Ty2,
 	bool (Ty1::*Func1)(int, cItemCallback<Ty2> &)
@@ -485,7 +485,7 @@ static int tolua_DoWithID(lua_State* tolua_S)
 
 
 
-template<
+template <
 	class Ty1,
 	class Ty2,
 	bool (Ty1::*Func1)(int, int, int, cItemCallback<Ty2> &)
@@ -580,7 +580,7 @@ static int tolua_DoWithXYZ(lua_State* tolua_S)
 
 
 
-template<
+template <
 	class Ty1,
 	class Ty2,
 	bool (Ty1::*Func1)(int, int, cItemCallback<Ty2> &)
@@ -676,7 +676,7 @@ static int tolua_ForEachInChunk(lua_State * tolua_S)
 
 
 
-template<
+template <
 	class Ty1,
 	class Ty2,
 	bool (Ty1::*Func1)(cItemCallback<Ty2> &)
@@ -1803,49 +1803,30 @@ static int tolua_cWorld_ChunkStay(lua_State * tolua_S)
 
 
 
-static int tolua_cPlayer_GetGroups(lua_State * tolua_S)
+static int tolua_cPlayer_GetPermissions(lua_State * tolua_S)
 {
-	cPlayer * self = (cPlayer *)tolua_tousertype(tolua_S, 1, NULL);
+	// Function signature: cPlayer:GetPermissions() -> {permissions-array}
 
-	const cPlayer::GroupList & AllGroups = self->GetGroups();
-
-	lua_createtable(tolua_S, (int)AllGroups.size(), 0);
-	int newTable = lua_gettop(tolua_S);
-	int index = 1;
-	cPlayer::GroupList::const_iterator iter = AllGroups.begin();
-	while (iter != AllGroups.end())
+	// Check the params:
+	cLuaState L(tolua_S);
+	if (
+		!L.CheckParamUserType(1, "cPlayer") ||
+		!L.CheckParamEnd     (2)
+	)
 	{
-		const cGroup * Group = *iter;
-		tolua_pushusertype(tolua_S, (void *)Group, "const cGroup");
-		lua_rawseti(tolua_S, newTable, index);
-		++iter;
-		++index;
+		return 0;
 	}
-	return 1;
-}
-
-
-
-
-
-static int tolua_cPlayer_GetResolvedPermissions(lua_State * tolua_S)
-{
-	cPlayer * self = (cPlayer*)  tolua_tousertype(tolua_S, 1, NULL);
-
-	cPlayer::StringList AllPermissions = self->GetResolvedPermissions();
 
-	lua_createtable(tolua_S, (int)AllPermissions.size(), 0);
-	int newTable = lua_gettop(tolua_S);
-	int index = 1;
-	cPlayer::StringList::iterator iter = AllPermissions.begin();
-	while (iter != AllPermissions.end())
+	// Get the params:
+	cPlayer * self = (cPlayer *)tolua_tousertype(tolua_S, 1, NULL);
+	if (self == NULL)
 	{
-		std::string & Permission = *iter;
-		lua_pushlstring(tolua_S, Permission.c_str(), Permission.length());
-		lua_rawseti(tolua_S, newTable, index);
-		++iter;
-		++index;
+		LOGWARNING("%s: invalid self (%p)", __FUNCTION__, self);
+		return 0;
 	}
+	
+	// Push the permissions:
+	L.Push(self->GetPermissions());
 	return 1;
 }
 
@@ -1902,6 +1883,40 @@ static int tolua_cPlayer_OpenWindow(lua_State * tolua_S)
 
 
 
+static int tolua_cPlayer_PermissionMatches(lua_State * tolua_S)
+{
+	// Function signature: cPlayer:PermissionMatches(PermissionStr, TemplateStr) -> bool
+
+	// Check the params:
+	cLuaState L(tolua_S);
+	if (
+		!L.CheckParamUserType(1, "cPlayer") ||
+		!L.CheckParamString  (2, 3) ||
+		!L.CheckParamEnd     (4)
+	)
+	{
+		return 0;
+	}
+
+	// Get the params:
+	cPlayer * self = (cPlayer *)tolua_tousertype(tolua_S, 1, NULL);
+	if (self == NULL)
+	{
+		LOGWARNING("%s: invalid self (%p)", __FUNCTION__, self);
+		return 0;
+	}
+	AString Permission, Template;
+	L.GetStackValues(2, Permission, Template);
+	
+	// Push the result of the match:
+	L.Push(self->PermissionMatches(StringSplit(Permission, "."), StringSplit(Template, ".")));
+	return 1;
+}
+
+
+
+
+
 template <
 	class OBJTYPE,
 	void (OBJTYPE::*SetCallback)(cPluginLua * a_Plugin, int a_FnRef)
@@ -2399,6 +2414,62 @@ static int tolua_cMojangAPI_GetUUIDsFromPlayerNames(lua_State * L)
 
 
 
+static int tolua_cMojangAPI_MakeUUIDDashed(lua_State * L)
+{
+	// Function signature: cMojangAPI:MakeUUIDDashed(UUID) -> string
+
+	// Check params:
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cMojangAPI") ||
+		!S.CheckParamString(2) ||
+		!S.CheckParamEnd(3)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString UUID;
+	S.GetStackValue(2, UUID);
+
+	// Push the result:
+	S.Push(cRoot::Get()->GetMojangAPI().MakeUUIDDashed(UUID));
+	return 1;
+}
+
+
+
+
+
+static int tolua_cMojangAPI_MakeUUIDShort(lua_State * L)
+{
+	// Function signature: cMojangAPI:MakeUUIDShort(UUID) -> string
+
+	// Check params:
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cMojangAPI") ||
+		!S.CheckParamString(2) ||
+		!S.CheckParamEnd(3)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString UUID;
+	S.GetStackValue(2, UUID);
+
+	// Push the result:
+	S.Push(cRoot::Get()->GetMojangAPI().MakeUUIDShort(UUID));
+	return 1;
+}
+
+
+
+
+
 static int Lua_ItemGrid_GetSlotCoords(lua_State * L)
 {
 	tolua_Error tolua_err;
@@ -3295,9 +3366,9 @@ void ManualBindings::Bind(lua_State * tolua_S)
 		tolua_endmodule(tolua_S);
 		
 		tolua_beginmodule(tolua_S, "cPlayer");
-			tolua_function(tolua_S, "GetGroups",              tolua_cPlayer_GetGroups);
-			tolua_function(tolua_S, "GetResolvedPermissions", tolua_cPlayer_GetResolvedPermissions);
-			tolua_function(tolua_S, "OpenWindow",             tolua_cPlayer_OpenWindow);
+			tolua_function(tolua_S, "GetPermissions",    tolua_cPlayer_GetPermissions);
+			tolua_function(tolua_S, "OpenWindow",        tolua_cPlayer_OpenWindow);
+			tolua_function(tolua_S, "PermissionMatches", tolua_cPlayer_PermissionMatches);
 		tolua_endmodule(tolua_S);
 		
 		tolua_beginmodule(tolua_S, "cLuaWindow");
@@ -3340,6 +3411,8 @@ void ManualBindings::Bind(lua_State * tolua_S)
 			tolua_function(tolua_S, "GetPlayerNameFromUUID",      tolua_cMojangAPI_GetPlayerNameFromUUID);
 			tolua_function(tolua_S, "GetUUIDFromPlayerName",      tolua_cMojangAPI_GetUUIDFromPlayerName);
 			tolua_function(tolua_S, "GetUUIDsFromPlayerNames",    tolua_cMojangAPI_GetUUIDsFromPlayerNames);
+			tolua_function(tolua_S, "MakeUUIDDashed",             tolua_cMojangAPI_MakeUUIDDashed);
+			tolua_function(tolua_S, "MakeUUIDShort",              tolua_cMojangAPI_MakeUUIDShort);
 		tolua_endmodule(tolua_S);
 		
 		tolua_beginmodule(tolua_S, "cItemGrid");
@@ -3347,6 +3420,8 @@ void ManualBindings::Bind(lua_State * tolua_S)
 		tolua_endmodule(tolua_S);
 
 		tolua_function(tolua_S, "md5", tolua_md5);
+		
+		BindRankManager(tolua_S);
 
 	tolua_endmodule(tolua_S);
 }
diff --git a/src/Bindings/ManualBindings.h b/src/Bindings/ManualBindings.h
index 36161c6a2..1b6e65654 100644
--- a/src/Bindings/ManualBindings.h
+++ b/src/Bindings/ManualBindings.h
@@ -1,8 +1,24 @@
 #pragma once
 
 struct lua_State;
+
+
+
+
+
+/** Provides namespace for the bindings. */
 class ManualBindings
 {
 public:
-	static void Bind( lua_State* tolua_S);
+	/** Binds all the manually implemented functions to tolua_S. */
+	static void Bind(lua_State * tolua_S);
+	
+protected:
+	/** Binds the manually implemented cRankManager glue code to tolua_S.
+	Implemented in ManualBindings_RankManager.cpp. */
+	static void BindRankManager(lua_State * tolua_S);
 };
+
+
+
+
diff --git a/src/Bindings/ManualBindings_RankManager.cpp b/src/Bindings/ManualBindings_RankManager.cpp
new file mode 100644
index 000000000..2e93ad264
--- /dev/null
+++ b/src/Bindings/ManualBindings_RankManager.cpp
@@ -0,0 +1,1007 @@
+
+// ManualBindings_RankManager.cpp
+
+// Implements the cRankManager Lua bindings
+
+#include "Globals.h"
+#include "ManualBindings.h"
+#include "../Root.h"
+#include "tolua++/include/tolua++.h"
+#include "LuaState.h"
+
+
+
+
+
+/** Binds cRankManager::AddGroup */
+static int tolua_cRankManager_AddGroup(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:AddGroup(GroupName)
+
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2) ||
+		!S.CheckParamEnd(3)
+	)
+	{
+		return 0;
+	}
+	
+	// Read the params:
+	AString GroupName;
+	S.GetStackValue(2, GroupName);
+	
+	// Add the group:
+	cRoot::Get()->GetRankManager().AddGroup(GroupName);
+	return 0;
+}
+
+
+
+
+
+/** Binds cRankManager::AddGroupToRank */
+static int tolua_cRankManager_AddGroupToRank(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:AddGroupToRank(GroupName, RankName) -> bool
+
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2, 3) ||
+		!S.CheckParamEnd(4)
+	)
+	{
+		return 0;
+	}
+	
+	// Read the params:
+	AString GroupName, RankName;
+	S.GetStackValues(2, GroupName, RankName);
+	
+	// Add the group to the rank:
+	S.Push(cRoot::Get()->GetRankManager().AddGroupToRank(GroupName, RankName));
+	return 1;
+}
+
+
+
+
+
+/** Binds cRankManager::AddPermissionToGroup */
+static int tolua_cRankManager_AddPermissionToGroup(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:AddPermissionToGroup(Permission, GroupName) -> bool
+
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2, 3) ||
+		!S.CheckParamEnd(4)
+	)
+	{
+		return 0;
+	}
+	
+	// Read the params:
+	AString GroupName, Permission;
+	S.GetStackValues(2, Permission, GroupName);
+	
+	// Add the group to the rank:
+	S.Push(cRoot::Get()->GetRankManager().AddPermissionToGroup(Permission, GroupName));
+	return 1;
+}
+
+
+
+
+
+/** Binds cRankManager::AddRank */
+static int tolua_cRankManager_AddRank(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:AddRank(RankName)
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2, 5) ||
+		!S.CheckParamEnd(6)
+	)
+	{
+		return 0;
+	}
+	
+	// Read the params:
+	AString RankName, MsgPrefix, MsgSuffix, MsgNameColorCode;
+	S.GetStackValues(2, RankName, MsgPrefix, MsgSuffix, MsgNameColorCode);
+	
+	// Add the rank:
+	cRoot::Get()->GetRankManager().AddRank(RankName, MsgPrefix, MsgSuffix, MsgNameColorCode);
+	return 0;
+}
+
+
+
+
+
+/** Binds cRankManager::GetAllGroups */
+static int tolua_cRankManager_GetAllGroups(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:GetAllGroups() -> arraytable of GroupNames
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamEnd(2)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the groups:
+	AStringVector Groups = cRoot::Get()->GetRankManager().GetAllGroups();
+	
+	// Push the results:
+	S.Push(Groups);
+	return 1;
+}
+
+
+
+
+
+/** Binds cRankManager::GetAllPermissions */
+static int tolua_cRankManager_GetAllPermissions(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:GetAllPermissions() -> arraytable of Permissions
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamEnd(2)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the permissions:
+	AStringVector Permissions = cRoot::Get()->GetRankManager().GetAllPermissions();
+	
+	// Push the results:
+	S.Push(Permissions);
+	return 1;
+}
+
+
+
+
+
+/** Binds cRankManager::GetAllRanks */
+static int tolua_cRankManager_GetAllRanks(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:GetAllRanks() -> arraytable of RankNames
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamEnd(2)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the ranks:
+	AStringVector Ranks = cRoot::Get()->GetRankManager().GetAllRanks();
+	
+	// Push the results:
+	S.Push(Ranks);
+	return 1;
+}
+
+
+
+
+
+/** Binds cRankManager::GetDefaultRank */
+static int tolua_cRankManager_GetDefaultRank(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:GetDefaultRank() -> string
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamEnd(2)
+	)
+	{
+		return 0;
+	}
+	
+	// Return the rank name:
+	S.Push(cRoot::Get()->GetRankManager().GetDefaultRank());
+	return 1;
+}
+
+
+
+
+
+/** Binds cRankManager::GetGroupPermissions */
+static int tolua_cRankManager_GetGroupPermissions(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:GetGroupPermissions(GroupName) -> arraytable of permissions
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2) ||
+		!S.CheckParamEnd(3)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString GroupName;
+	S.GetStackValue(2, GroupName);
+	
+	// Get the permissions:
+	AStringVector Permissions = cRoot::Get()->GetRankManager().GetGroupPermissions(GroupName);
+	
+	// Push the results:
+	S.Push(Permissions);
+	return 1;
+}
+
+
+
+
+
+/** Binds cRankManager::GetPlayerGroups */
+static int tolua_cRankManager_GetPlayerGroups(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:GetPlayerGroups(PlayerUUID) -> arraytable of GroupNames
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2) ||
+		!S.CheckParamEnd(3)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString PlayerUUID;
+	S.GetStackValue(2, PlayerUUID);
+	
+	// Get the groups:
+	AStringVector Groups = cRoot::Get()->GetRankManager().GetPlayerGroups(PlayerUUID);
+	
+	// Push the results:
+	S.Push(Groups);
+	return 1;
+}
+
+
+
+
+
+/** Binds cRankManager::GetPlayerMsgVisuals */
+static int tolua_cRankManager_GetPlayerMsgVisuals(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:GetPlayerMsgVisuals(PlayerUUID) -> string, string, string
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2) ||
+		!S.CheckParamEnd(3)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString PlayerUUID;
+	S.GetStackValue(2, PlayerUUID);
+	
+	// Get the permissions:
+	AString MsgPrefix, MsgSuffix, MsgNameColorCode;
+	if (!cRoot::Get()->GetRankManager().GetPlayerMsgVisuals(PlayerUUID, MsgPrefix, MsgSuffix, MsgNameColorCode))
+	{
+		return 0;
+	}
+	
+	// Push the results:
+	S.Push(MsgPrefix);
+	S.Push(MsgSuffix);
+	S.Push(MsgNameColorCode);
+	return 3;
+}
+
+
+
+
+
+/** Binds cRankManager::GetPlayerPermissions */
+static int tolua_cRankManager_GetPlayerPermissions(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:GetPlayerPermissions(PlayerUUID) -> arraytable of permissions
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2) ||
+		!S.CheckParamEnd(3)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString PlayerUUID;
+	S.GetStackValue(2, PlayerUUID);
+	
+	// Get the permissions:
+	AStringVector Permissions = cRoot::Get()->GetRankManager().GetPlayerPermissions(PlayerUUID);
+	
+	// Push the results:
+	S.Push(Permissions);
+	return 1;
+}
+
+
+
+
+
+/** Binds cRankManager::GetPlayerRankName */
+static int tolua_cRankManager_GetPlayerRankName(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:GetPlayerRankName(PlayerUUID) -> string
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2) ||
+		!S.CheckParamEnd(3)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString PlayerUUID;
+	S.GetStackValue(2, PlayerUUID);
+	
+	// Get the rank name:
+	AString RankName = cRoot::Get()->GetRankManager().GetPlayerRankName(PlayerUUID);
+	
+	// Push the result:
+	S.Push(RankName);
+	return 1;
+}
+
+
+
+
+
+/** Binds cRankManager::GetRankGroups */
+static int tolua_cRankManager_GetRankGroups(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:GetRankGroups(RankName) -> arraytable of groupnames
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2) ||
+		!S.CheckParamEnd(3)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString RankName;
+	S.GetStackValue(2, RankName);
+	
+	// Get the groups:
+	AStringVector Groups = cRoot::Get()->GetRankManager().GetRankGroups(RankName);
+	
+	// Push the results:
+	S.Push(Groups);
+	return 1;
+}
+
+
+
+
+
+/** Binds cRankManager::GetRankPermissions */
+static int tolua_cRankManager_GetRankPermissions(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:GetRankPermissions(RankName) -> arraytable of permissions
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2) ||
+		!S.CheckParamEnd(3)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString RankName;
+	S.GetStackValue(2, RankName);
+	
+	// Get the permissions:
+	AStringVector Permissions = cRoot::Get()->GetRankManager().GetRankPermissions(RankName);
+	
+	// Push the results:
+	S.Push(Permissions);
+	return 1;
+}
+
+
+
+
+
+/** Binds cRankManager::GetRankVisuals */
+static int tolua_cRankManager_GetRankVisuals(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:GetRankVisuals(RankName) -> MsgPrefix, MsgSuffix, MsgNameColorCode
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2) ||
+		!S.CheckParamEnd(3)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString RankName;
+	S.GetStackValue(2, RankName);
+	
+	// Get the visuals:
+	AString MsgPrefix, MsgSuffix, MsgNameColorCode;
+	if (!cRoot::Get()->GetRankManager().GetRankVisuals(RankName, MsgPrefix, MsgSuffix, MsgNameColorCode))
+	{
+		// No such rank, return nothing:
+		return 0;
+	}
+	
+	// Push the results:
+	S.Push(MsgPrefix);
+	S.Push(MsgSuffix);
+	S.Push(MsgNameColorCode);
+	return 3;
+}
+
+
+
+
+
+/** Binds cRankManager::GroupExists */
+static int tolua_cRankManager_GroupExists(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:GroupExists(GroupName) -> bool
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2) ||
+		!S.CheckParamEnd(3)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString GroupName;
+	S.GetStackValue(2, GroupName);
+	
+	// Get the response:
+	bool res = cRoot::Get()->GetRankManager().GroupExists(GroupName);
+	
+	// Push the result:
+	S.Push(res);
+	return 1;
+}
+
+
+
+
+
+/** Binds cRankManager::IsGroupInRank */
+static int tolua_cRankManager_IsGroupInRank(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:IsGroupInRank(GroupName, RankName) -> bool
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2, 3) ||
+		!S.CheckParamEnd(4)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString GroupName, RankName;
+	S.GetStackValues(2, GroupName, RankName);
+	
+	// Get the response:
+	bool res = cRoot::Get()->GetRankManager().IsGroupInRank(GroupName, RankName);
+	
+	// Push the result:
+	S.Push(res);
+	return 1;
+}
+
+
+
+
+
+/** Binds cRankManager::IsPermissionInGroup */
+static int tolua_cRankManager_IsPermissionInGroup(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:IsPermissionInGroup(Permission, GroupName) -> bool
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2, 3) ||
+		!S.CheckParamEnd(4)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString GroupName, Permission;
+	S.GetStackValues(2, Permission, GroupName);
+	
+	// Get the response:
+	bool res = cRoot::Get()->GetRankManager().IsPermissionInGroup(Permission, GroupName);
+	
+	// Push the result:
+	S.Push(res);
+	return 1;
+}
+
+
+
+
+
+/** Binds cRankManager::IsPlayerRankSet */
+static int tolua_cRankManager_IsPlayerRankSet(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:IsPlayerRankSet(PlayerUUID) -> bool
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2) ||
+		!S.CheckParamEnd(3)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString PlayerUUID;
+	S.GetStackValue(2, PlayerUUID);
+	
+	// Get the response:
+	bool res = cRoot::Get()->GetRankManager().IsPlayerRankSet(PlayerUUID);
+	
+	// Push the result:
+	S.Push(res);
+	return 1;
+}
+
+
+
+
+
+/** Binds cRankManager::RankExists */
+static int tolua_cRankManager_RankExists(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:RankExists(RankName) -> bool
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2) ||
+		!S.CheckParamEnd(3)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString RankName;
+	S.GetStackValue(2, RankName);
+	
+	// Get the response:
+	bool res = cRoot::Get()->GetRankManager().RankExists(RankName);
+	
+	// Push the result:
+	S.Push(res);
+	return 1;
+}
+
+
+
+
+
+/** Binds cRankManager::RemoveGroup */
+static int tolua_cRankManager_RemoveGroup(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:RemoveGroup(GroupName)
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2) ||
+		!S.CheckParamEnd(3)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString GroupName;
+	S.GetStackValue(2, GroupName);
+	
+	// Remove the group:
+	cRoot::Get()->GetRankManager().RemoveGroup(GroupName);
+	return 0;
+}
+
+
+
+
+
+/** Binds cRankManager::RemoveGroupFromRank */
+static int tolua_cRankManager_RemoveGroupFromRank(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:RemoveGroupFromRank(GroupName, RankName)
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2, 3) ||
+		!S.CheckParamEnd(4)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString GroupName, RankName;
+	S.GetStackValues(2, GroupName, RankName);
+	
+	// Remove the group:
+	cRoot::Get()->GetRankManager().RemoveGroupFromRank(GroupName, RankName);
+	return 0;
+}
+
+
+
+
+
+/** Binds cRankManager::RemovePermissionFromGroup */
+static int tolua_cRankManager_RemovePermissionFromGroup(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:RemovePermissionFromGroup(Permission, GroupName)
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2, 3) ||
+		!S.CheckParamEnd(4)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString GroupName, Permission;
+	S.GetStackValues(2, Permission, GroupName);
+	
+	// Remove the group:
+	cRoot::Get()->GetRankManager().RemovePermissionFromGroup(Permission, GroupName);
+	return 0;
+}
+
+
+
+
+
+/** Binds cRankManager::RemovePlayerRank */
+static int tolua_cRankManager_RemovePlayerRank(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:RemovePlayerRank(PlayerUUID)
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2) ||
+		!S.CheckParamEnd(3)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString PlayerUUID;
+	S.GetStackValue(2, PlayerUUID);
+	
+	// Remove the player's rank:
+	cRoot::Get()->GetRankManager().RemovePlayerRank(PlayerUUID);
+	return 0;
+}
+
+
+
+
+
+/** Binds cRankManager::RemoveRank */
+static int tolua_cRankManager_RemoveRank(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:RemoveRank(RankName, [ReplacementRankName])
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2) ||
+		// Param 3 is otpional, defaults to nil -> empty string
+		!S.CheckParamEnd(4)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString RankName, ReplacementRankName;
+	S.GetStackValues(2, RankName, ReplacementRankName);
+	
+	// Remove the rank:
+	cRoot::Get()->GetRankManager().RemoveRank(RankName, ReplacementRankName);
+	return 0;
+}
+
+
+
+
+
+/** Binds cRankManager::RenameGroup */
+static int tolua_cRankManager_RenameGroup(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:RenameGroup(OldName, NewName)
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2, 3) ||
+		!S.CheckParamEnd(4)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString OldName, NewName;
+	S.GetStackValues(2, OldName, NewName);
+	
+	// Remove the group:
+	bool res = cRoot::Get()->GetRankManager().RenameGroup(OldName, NewName);
+	
+	// Push the result:
+	S.Push(res);
+	return 1;
+}
+
+
+
+
+
+/** Binds cRankManager::RenameRank */
+static int tolua_cRankManager_RenameRank(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:RenameRank(OldName, NewName)
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2, 3) ||
+		!S.CheckParamEnd(4)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString OldName, NewName;
+	S.GetStackValues(2, OldName, NewName);
+	
+	// Remove the rank:
+	bool res = cRoot::Get()->GetRankManager().RenameRank(OldName, NewName);
+	
+	// Push the result:
+	S.Push(res);
+	return 1;
+}
+
+
+
+
+
+/** Binds cRankManager::SetDefaultRank */
+static int tolua_cRankManager_SetDefaultRank(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:SetDefaultRank(RankName) -> bool
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2) ||
+		!S.CheckParamEnd(3)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString RankName;
+	S.GetStackValue(2, RankName);
+	
+	// Set the rank, return the result:
+	S.Push(cRoot::Get()->GetRankManager().SetDefaultRank(RankName));
+	return 0;
+}
+
+
+
+
+
+/** Binds cRankManager::SetPlayerRank */
+static int tolua_cRankManager_SetPlayerRank(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:SetPlayerRank(PlayerUUID, PlayerName, RankName)
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2, 4) ||
+		!S.CheckParamEnd(5)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString PlayerUUID, PlayerName, RankName;
+	S.GetStackValues(2, PlayerUUID, PlayerName, RankName);
+	
+	// Set the rank:
+	cRoot::Get()->GetRankManager().SetPlayerRank(PlayerUUID, PlayerName, RankName);
+	return 0;
+}
+
+
+
+
+
+/** Binds cRankManager::SetRankVisuals */
+static int tolua_cRankManager_SetRankVisuals(lua_State * L)
+{
+	// Function signature:
+	// cRankManager:SetRankVisuals(RankName, MsgPrefix, MsgSuffix, MsgNameColorCode)
+	
+	cLuaState S(L);
+	if (
+		!S.CheckParamUserTable(1, "cRankManager") ||
+		!S.CheckParamString(2, 5) ||
+		!S.CheckParamEnd(6)
+	)
+	{
+		return 0;
+	}
+	
+	// Get the params:
+	AString RankName, MsgPrefix, MsgSuffix, MsgNameColorCode;
+	S.GetStackValues(2, RankName, MsgPrefix, MsgSuffix, MsgNameColorCode);
+	
+	// Set the visuals:
+	cRoot::Get()->GetRankManager().SetRankVisuals(RankName, MsgPrefix, MsgSuffix, MsgNameColorCode);
+	return 0;
+}
+
+
+
+
+
+void ManualBindings::BindRankManager(lua_State * tolua_S)
+{
+	// Create the cRankManager class in the API:
+	tolua_usertype(tolua_S, "cRankManager");
+	tolua_cclass(tolua_S, "cRankManager", "cRankManager", "", NULL);
+	
+	// Fill in the functions (alpha-sorted):
+	tolua_beginmodule(tolua_S, "cRankManager");
+		tolua_function(tolua_S, "AddGroup",                  tolua_cRankManager_AddGroup);
+		tolua_function(tolua_S, "AddGroupToRank",            tolua_cRankManager_AddGroupToRank);
+		tolua_function(tolua_S, "AddPermissionToGroup",      tolua_cRankManager_AddPermissionToGroup);
+		tolua_function(tolua_S, "AddRank",                   tolua_cRankManager_AddRank);
+		tolua_function(tolua_S, "GetAllGroups",              tolua_cRankManager_GetAllGroups);
+		tolua_function(tolua_S, "GetAllPermissions",         tolua_cRankManager_GetAllPermissions);
+		tolua_function(tolua_S, "GetAllRanks",               tolua_cRankManager_GetAllRanks);
+		tolua_function(tolua_S, "GetDefaultRank",            tolua_cRankManager_GetDefaultRank);
+		tolua_function(tolua_S, "GetGroupPermissions",       tolua_cRankManager_GetGroupPermissions);
+		tolua_function(tolua_S, "GetPlayerGroups",           tolua_cRankManager_GetPlayerGroups);
+		tolua_function(tolua_S, "GetPlayerMsgVisuals",       tolua_cRankManager_GetPlayerMsgVisuals);
+		tolua_function(tolua_S, "GetPlayerPermissions",      tolua_cRankManager_GetPlayerPermissions);
+		tolua_function(tolua_S, "GetPlayerRankName",         tolua_cRankManager_GetPlayerRankName);
+		tolua_function(tolua_S, "GetRankGroups",             tolua_cRankManager_GetRankGroups);
+		tolua_function(tolua_S, "GetRankPermissions",        tolua_cRankManager_GetRankPermissions);
+		tolua_function(tolua_S, "GetRankVisuals",            tolua_cRankManager_GetRankVisuals);
+		tolua_function(tolua_S, "GroupExists",               tolua_cRankManager_GroupExists);
+		tolua_function(tolua_S, "IsGroupInRank",             tolua_cRankManager_IsGroupInRank);
+		tolua_function(tolua_S, "IsPermissionInGroup",       tolua_cRankManager_IsPermissionInGroup);
+		tolua_function(tolua_S, "IsPlayerRankSet",           tolua_cRankManager_IsPlayerRankSet);
+		tolua_function(tolua_S, "RankExists",                tolua_cRankManager_RankExists);
+		tolua_function(tolua_S, "RemoveGroup",               tolua_cRankManager_RemoveGroup);
+		tolua_function(tolua_S, "RemoveGroupFromRank",       tolua_cRankManager_RemoveGroupFromRank);
+		tolua_function(tolua_S, "RemovePermissionFromGroup", tolua_cRankManager_RemovePermissionFromGroup);
+		tolua_function(tolua_S, "RemovePlayerRank",          tolua_cRankManager_RemovePlayerRank);
+		tolua_function(tolua_S, "RemoveRank",                tolua_cRankManager_RemoveRank);
+		tolua_function(tolua_S, "RenameGroup",               tolua_cRankManager_RenameGroup);
+		tolua_function(tolua_S, "RenameRank",                tolua_cRankManager_RenameRank);
+		tolua_function(tolua_S, "SetDefaultRank",            tolua_cRankManager_SetDefaultRank);
+		tolua_function(tolua_S, "SetPlayerRank",             tolua_cRankManager_SetPlayerRank);
+		tolua_function(tolua_S, "SetRankVisuals",            tolua_cRankManager_SetRankVisuals);
+	tolua_endmodule(tolua_S);
+}
+
+
+
+
diff --git a/src/Bindings/Plugin.h b/src/Bindings/Plugin.h
index 53d4be29d..c9a53346d 100644
--- a/src/Bindings/Plugin.h
+++ b/src/Bindings/Plugin.h
@@ -73,7 +73,7 @@ public:
 	virtual bool OnPlayerFoodLevelChange    (cPlayer & a_Player, int a_NewFoodLevel) = 0;
 	virtual bool OnPlayerJoined             (cPlayer & a_Player) = 0;
 	virtual bool OnPlayerLeftClick          (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, char a_Status) = 0;
-	virtual bool OnPlayerMoving             (cPlayer & a_Player, const Vector3d a_OldPosition, const Vector3d a_NewPosition) = 0;
+	virtual bool OnPlayerMoving             (cPlayer & a_Player, const Vector3d & a_OldPosition, const Vector3d & a_NewPosition) = 0;
 	virtual bool OnPlayerPlacedBlock        (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, int a_CursorX, int a_CursorY, int a_CursorZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) = 0;
 	virtual bool OnPlayerPlacingBlock       (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, int a_CursorX, int a_CursorY, int a_CursorZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) = 0;
 	virtual bool OnPlayerRightClick         (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, int a_CursorX, int a_CursorY, int a_CursorZ) = 0;
diff --git a/src/Bindings/PluginLua.cpp b/src/Bindings/PluginLua.cpp
index d0b4fa617..2c2d05547 100644
--- a/src/Bindings/PluginLua.cpp
+++ b/src/Bindings/PluginLua.cpp
@@ -835,14 +835,14 @@ bool cPluginLua::OnPlayerLeftClick(cPlayer & a_Player, int a_BlockX, int a_Block
 
 
 
-bool cPluginLua::OnPlayerMoving(cPlayer & a_Player, const Vector3d a_OldPosition, const Vector3d a_NewPosition)
+bool cPluginLua::OnPlayerMoving(cPlayer & a_Player, const Vector3d & a_OldPosition, const Vector3d & a_NewPosition)
 {
 	cCSLock Lock(m_CriticalSection);
 	bool res = false;
 	cLuaRefs & Refs = m_HookMap[cPluginManager::HOOK_PLAYER_MOVING];
 	for (cLuaRefs::iterator itr = Refs.begin(), end = Refs.end(); itr != end; ++itr)
 	{
-		m_LuaState.Call((int)(**itr), &a_Player, &a_OldPosition, &a_NewPosition, cLuaState::Return, res);
+		m_LuaState.Call((int)(**itr), &a_Player, a_OldPosition, a_NewPosition, cLuaState::Return, res);
 		if (res)
 		{
 			return true;
diff --git a/src/Bindings/PluginLua.h b/src/Bindings/PluginLua.h
index 2b7358043..eda65b76c 100644
--- a/src/Bindings/PluginLua.h
+++ b/src/Bindings/PluginLua.h
@@ -98,8 +98,8 @@ public:
 	virtual bool OnPlayerFishing            (cPlayer & a_Player, cItems & a_Reward) override;
 	virtual bool OnPlayerFoodLevelChange    (cPlayer & a_Player, int a_NewFoodLevel) override;
 	virtual bool OnPlayerJoined             (cPlayer & a_Player) override;
-	virtual bool OnPlayerMoving             (cPlayer & a_Player, const Vector3d a_OldPosition, const Vector3d a_NewPosition) override;
 	virtual bool OnPlayerLeftClick          (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, char a_Status) override;
+	virtual bool OnPlayerMoving             (cPlayer & a_Player, const Vector3d & a_OldPosition, const Vector3d & a_NewPosition) override;
 	virtual bool OnPlayerPlacedBlock        (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, int a_CursorX, int a_CursorY, int a_CursorZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) override;
 	virtual bool OnPlayerPlacingBlock       (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, int a_CursorX, int a_CursorY, int a_CursorZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) override;
 	virtual bool OnPlayerRightClick         (cPlayer & a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, int a_CursorX, int a_CursorY, int a_CursorZ) override;
diff --git a/src/Bindings/gen_LuaState_Call.lua b/src/Bindings/gen_LuaState_Call.lua
index c1d1af771..2d8630d12 100644
--- a/src/Bindings/gen_LuaState_Call.lua
+++ b/src/Bindings/gen_LuaState_Call.lua
@@ -54,9 +54,9 @@ local Combinations =
 	{9, 2},
 	
 	-- Special combinations:
+	{5, 5},
 	{7, 3},
 	{8, 3},
-	{5, 5},
 	{9, 5},
 }
 
@@ -183,6 +183,33 @@ for _, combination in ipairs(Combinations) do
 	WriteOverload(f, combination[1], combination[2])
 end
 
+-- Generate the cLuaState::GetStackValues() multi-param templates:
+for i = 2, 6 do
+	f:write("/** Reads ", i, " consecutive values off the stack */\ntemplate <\n")
+	
+	-- Write the template function header:
+	local txt = {}
+	for idx = 1, i do
+		table.insert(txt, "\ttypename ArgT" .. idx)
+	end
+	f:write(table.concat(txt, ",\n"))
+	
+	-- Write the argument declarations:
+	txt = {}
+	f:write("\n>\nvoid GetStackValues(\n\tint a_BeginPos,\n")
+	for idx = 1, i do
+		table.insert(txt, "\tArgT" .. idx .. " & Arg" .. idx)
+	end
+	f:write(table.concat(txt, ",\n"))
+	
+	-- Write the function body:
+	f:write("\n)\n{\n")
+	for idx = 1, i do
+		f:write("\tGetStackValue(a_BeginPos + ", idx - 1, ", Arg", idx, ");\n")
+	end
+	f:write("}\n\n\n\n\n\n")
+end
+
 -- Close the generated file
 f:close()
 
diff --git a/src/BlockArea.cpp b/src/BlockArea.cpp
index a0dcb5ec8..ba55528b8 100644
--- a/src/BlockArea.cpp
+++ b/src/BlockArea.cpp
@@ -28,7 +28,7 @@ typedef void (CombinatorFunc)(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLE
 
 // This wild construct allows us to pass a function argument and still have it inlined by the compiler :)
 /// Merges two blocktypes and blockmetas of the specified sizes and offsets using the specified combinator function
-template<bool MetasValid, CombinatorFunc Combinator>
+template <bool MetasValid, CombinatorFunc Combinator>
 void InternalMergeBlocks(
 	BLOCKTYPE * a_DstTypes, const BLOCKTYPE * a_SrcTypes,
 	NIBBLETYPE * a_DstMetas, const NIBBLETYPE * a_SrcMetas,
@@ -74,7 +74,7 @@ void InternalMergeBlocks(
 
 
 /// Combinator used for cBlockArea::msOverwrite merging
-template<bool MetaValid>
+template <bool MetaValid>
 void MergeCombinatorOverwrite(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta)
 {
 	a_DstType = a_SrcType;
@@ -89,7 +89,7 @@ void MergeCombinatorOverwrite(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLE
 
 
 /// Combinator used for cBlockArea::msFillAir merging
-template<bool MetaValid>
+template <bool MetaValid>
 void MergeCombinatorFillAir(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta)
 {
 	if (a_DstType == E_BLOCK_AIR)
@@ -108,7 +108,7 @@ void MergeCombinatorFillAir(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETY
 
 
 /// Combinator used for cBlockArea::msImprint merging
-template<bool MetaValid>
+template <bool MetaValid>
 void MergeCombinatorImprint(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta)
 {
 	if (a_SrcType != E_BLOCK_AIR)
@@ -127,7 +127,7 @@ void MergeCombinatorImprint(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETY
 
 
 /// Combinator used for cBlockArea::msLake merging
-template<bool MetaValid>
+template <bool MetaValid>
 void MergeCombinatorLake(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta)
 {
 	// Sponge is the NOP block
@@ -201,7 +201,7 @@ void MergeCombinatorLake(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE
 
 
 /** Combinator used for cBlockArea::msSpongePrint merging */
-template<bool MetaValid>
+template <bool MetaValid>
 void MergeCombinatorSpongePrint(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta)
 {
 	// Sponge overwrites nothing, everything else overwrites anything
@@ -220,7 +220,7 @@ void MergeCombinatorSpongePrint(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBB
 
 
 /** Combinator used for cBlockArea::msDifference merging */
-template<bool MetaValid>
+template <bool MetaValid>
 void MergeCombinatorDifference(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta)
 {
 	if ((a_DstType == a_SrcType) && (!MetaValid || (a_DstMeta == a_SrcMeta)))
@@ -246,7 +246,7 @@ void MergeCombinatorDifference(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBL
 
 
 /** Combinator used for cBlockArea::msMask merging */
-template<bool MetaValid>
+template <bool MetaValid>
 void MergeCombinatorMask(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta)
 {
 	// If the blocks are the same, keep the dest; otherwise replace with air
@@ -1764,7 +1764,9 @@ NIBBLETYPE cBlockArea::GetNibble(int a_BlockX, int a_BlockY, int a_BlockZ, NIBBL
 
 cBlockArea::cChunkReader::cChunkReader(cBlockArea & a_Area) :
 	m_Area(a_Area),
-	m_Origin(a_Area.m_Origin.x, a_Area.m_Origin.y, a_Area.m_Origin.z)
+	m_Origin(a_Area.m_Origin.x, a_Area.m_Origin.y, a_Area.m_Origin.z),
+	m_CurrentChunkX(0),
+	m_CurrentChunkZ(0)
 {
 }
 
@@ -2119,7 +2121,7 @@ void cBlockArea::RelSetData(
 
 
 
-template<bool MetasValid>
+template <bool MetasValid>
 void cBlockArea::MergeByStrategy(const cBlockArea & a_Src, int a_RelX, int a_RelY, int a_RelZ, eMergeStrategy a_Strategy, const NIBBLETYPE * SrcMetas, NIBBLETYPE * DstMetas)
 {
 	// Block types are compulsory, block metas are voluntary
diff --git a/src/BlockArea.h b/src/BlockArea.h
index a95ba7788..86f7c4f2d 100644
--- a/src/BlockArea.h
+++ b/src/BlockArea.h
@@ -362,7 +362,7 @@ protected:
 		NIBBLETYPE a_BlockLight, NIBBLETYPE a_BlockSkyLight
 	);
 	
-	template<bool MetasValid>
+	template <bool MetasValid>
 	void MergeByStrategy(const cBlockArea & a_Src, int a_RelX, int a_RelY, int a_RelZ, eMergeStrategy a_Strategy, const NIBBLETYPE * SrcMetas, NIBBLETYPE * DstMetas);
 	// tolua_begin
 } ;
diff --git a/src/Blocks/BlockAnvil.h b/src/Blocks/BlockAnvil.h
index 5c4661c11..20514580e 100644
--- a/src/Blocks/BlockAnvil.h
+++ b/src/Blocks/BlockAnvil.h
@@ -40,14 +40,15 @@ public:
 	) override
 	{
 		a_BlockType = m_BlockType;
-		NIBBLETYPE HighBits = a_BlockMeta & 0x0c;  // Only highest two bits are preserved
+		NIBBLETYPE Meta = (NIBBLETYPE)a_Player->GetEquippedItem().m_ItemDamage;
 		int Direction = (int)floor(a_Player->GetYaw() * 4.0 / 360.0 + 1.5) & 0x3;
+
 		switch (Direction)
 		{
-			case 0: a_BlockMeta = 0x2 | HighBits; break;
-			case 1: a_BlockMeta = 0x3 | HighBits; break;
-			case 2: a_BlockMeta = 0x0 | HighBits; break;
-			case 3: a_BlockMeta = 0x1 | HighBits; break;
+			case 0: a_BlockMeta = 0x2 | Meta << 2; break;
+			case 1: a_BlockMeta = 0x3 | Meta << 2; break;
+			case 2: a_BlockMeta = 0x0 | Meta << 2; break;
+			case 3: a_BlockMeta = 0x1 | Meta << 2; break;
 			default:
 			{
 				return false;
diff --git a/src/Blocks/ClearMetaOnDrop.h b/src/Blocks/ClearMetaOnDrop.h
index f2afbc6ea..aa4f23848 100644
--- a/src/Blocks/ClearMetaOnDrop.h
+++ b/src/Blocks/ClearMetaOnDrop.h
@@ -7,7 +7,7 @@
 // For example to use in class Foo which should inherit Bar use
 // class Foo : public cClearMetaOnDrop<Bar>;
 
-template<class Base>
+template <class Base>
 class cClearMetaOnDrop : public Base
 {
 public:
diff --git a/src/Blocks/MetaRotator.h b/src/Blocks/MetaRotator.h
index 599aa7ef9..4c268077a 100644
--- a/src/Blocks/MetaRotator.h
+++ b/src/Blocks/MetaRotator.h
@@ -20,7 +20,7 @@ Usage:
 Inherit from this class providing your base class as Base, the BitMask for the direction bits in bitmask and the masked value for the directions in North, East, South, West. There is also an aptional parameter AssertIfNotMatched. Set this if it is invalid for a block to exist in any other state.
 */
 
-template<class Base, NIBBLETYPE BitMask, NIBBLETYPE North, NIBBLETYPE East, NIBBLETYPE South, NIBBLETYPE West, bool AssertIfNotMatched = false>
+template <class Base, NIBBLETYPE BitMask, NIBBLETYPE North, NIBBLETYPE East, NIBBLETYPE South, NIBBLETYPE West, bool AssertIfNotMatched = false>
 class cMetaRotator : public Base
 {
 public:
@@ -41,7 +41,7 @@ public:
 
 
 
-template<class Base, NIBBLETYPE BitMask, NIBBLETYPE North, NIBBLETYPE East, NIBBLETYPE South, NIBBLETYPE West, bool AssertIfNotMatched>
+template <class Base, NIBBLETYPE BitMask, NIBBLETYPE North, NIBBLETYPE East, NIBBLETYPE South, NIBBLETYPE West, bool AssertIfNotMatched>
 NIBBLETYPE cMetaRotator<Base, BitMask, North, East, South, West, AssertIfNotMatched>::MetaRotateCW(NIBBLETYPE a_Meta)
 {
 	NIBBLETYPE OtherMeta = a_Meta & (~BitMask);
@@ -63,7 +63,7 @@ NIBBLETYPE cMetaRotator<Base, BitMask, North, East, South, West, AssertIfNotMatc
 
 
 
-template<class Base, NIBBLETYPE BitMask, NIBBLETYPE North, NIBBLETYPE East, NIBBLETYPE South, NIBBLETYPE West, bool AssertIfNotMatched>
+template <class Base, NIBBLETYPE BitMask, NIBBLETYPE North, NIBBLETYPE East, NIBBLETYPE South, NIBBLETYPE West, bool AssertIfNotMatched>
 NIBBLETYPE cMetaRotator<Base, BitMask, North, East, South, West, AssertIfNotMatched>::MetaRotateCCW(NIBBLETYPE a_Meta)
 {
 	NIBBLETYPE OtherMeta = a_Meta & (~BitMask);
@@ -85,7 +85,7 @@ NIBBLETYPE cMetaRotator<Base, BitMask, North, East, South, West, AssertIfNotMatc
 
 
 
-template<class Base, NIBBLETYPE BitMask, NIBBLETYPE North, NIBBLETYPE East, NIBBLETYPE South, NIBBLETYPE West, bool AssertIfNotMatched>
+template <class Base, NIBBLETYPE BitMask, NIBBLETYPE North, NIBBLETYPE East, NIBBLETYPE South, NIBBLETYPE West, bool AssertIfNotMatched>
 NIBBLETYPE cMetaRotator<Base, BitMask, North, East, South, West, AssertIfNotMatched>::MetaMirrorXY(NIBBLETYPE a_Meta)
 {
 	NIBBLETYPE OtherMeta = a_Meta & (~BitMask);
@@ -102,7 +102,7 @@ NIBBLETYPE cMetaRotator<Base, BitMask, North, East, South, West, AssertIfNotMatc
 
 
 
-template<class Base, NIBBLETYPE BitMask, NIBBLETYPE North, NIBBLETYPE East, NIBBLETYPE South, NIBBLETYPE West, bool AssertIfNotMatched>
+template <class Base, NIBBLETYPE BitMask, NIBBLETYPE North, NIBBLETYPE East, NIBBLETYPE South, NIBBLETYPE West, bool AssertIfNotMatched>
 NIBBLETYPE cMetaRotator<Base, BitMask, North, East, South, West, AssertIfNotMatched>::MetaMirrorYZ(NIBBLETYPE a_Meta)
 {
 	NIBBLETYPE OtherMeta = a_Meta & (~BitMask);
diff --git a/src/ByteBuffer.cpp b/src/ByteBuffer.cpp
index 64b31c60b..96556bf61 100644
--- a/src/ByteBuffer.cpp
+++ b/src/ByteBuffer.cpp
@@ -27,7 +27,7 @@
 )
 	#define IS_LITTLE_ENDIAN
 #elif ( \
-	defined (__ARMEB__) || defined(__sparc) \
+	defined (__ARMEB__) || defined(__sparc) || defined(__powerpc__) || defined(__POWERPC__) \
 )
 	#define IS_BIG_ENDIAN
 #else
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 6b5efbd1f..37657ba91 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -34,8 +34,6 @@ SET (SRCS
 	FastRandom.cpp
 	FurnaceRecipe.cpp
 	Globals.cpp
-	Group.cpp
-	GroupManager.cpp
 	Inventory.cpp
 	Item.cpp
 	ItemGrid.cpp
@@ -53,6 +51,7 @@ SET (SRCS
 	MonsterConfig.cpp
 	Noise.cpp
 	ProbabDistrib.cpp
+	RankManager.cpp
 	RCONServer.cpp
 	Root.cpp
 	Scoreboard.cpp
@@ -98,8 +97,6 @@ SET (HDRS
 	ForEachChunkProvider.h
 	FurnaceRecipe.h
 	Globals.h
-	Group.h
-	GroupManager.h
 	Inventory.h
 	Item.h
 	ItemGrid.h
@@ -122,6 +119,7 @@ SET (HDRS
 	MonsterConfig.h
 	Noise.h
 	ProbabDistrib.h
+	RankManager.h
 	RCONServer.h
 	Root.h
 	Scoreboard.h
diff --git a/src/CheckBasicStyle.lua b/src/CheckBasicStyle.lua
index bf81a7cd5..b244b1fbc 100644
--- a/src/CheckBasicStyle.lua
+++ b/src/CheckBasicStyle.lua
@@ -108,7 +108,7 @@ local g_ViolationPatterns =
 	
 	-- Check that all commas have spaces after them and not in front of them:
 	{" ,", "Extra space before a \",\""},
-	{",[^%s\"%%]", "Needs a space after a \",\""},  -- Report all except >> "," << needed for splitting and >>,%s<< needed for formatting
+	{",[^%s\"%%\']", "Needs a space after a \",\""},  -- Report all except >> "," << needed for splitting and >>,%s<< needed for formatting
 	
 	-- Check that opening braces are not at the end of a code line:
 	{"[^%s].-{\n?$", "Brace should be on a separate line"},
@@ -119,6 +119,7 @@ local g_ViolationPatterns =
 	{"while%(", "Needs a space after \"while\""},
 	{"switch%(", "Needs a space after \"switch\""},
 	{"catch%(", "Needs a space after \"catch\""},
+	{"template<", "Needs a space after \"template\""},
 	
 	-- No space after keyword's parenthesis:
 	{"[^%a#]if %( ", "Remove the space after \"(\""},
diff --git a/src/Chunk.cpp b/src/Chunk.cpp
index 116c0f3a0..40ffff834 100644
--- a/src/Chunk.cpp
+++ b/src/Chunk.cpp
@@ -296,6 +296,16 @@ void cChunk::SetAllData(cSetChunkData & a_SetChunkData)
 	}
 	m_BlockEntities.clear();
 	std::swap(a_SetChunkData.GetBlockEntities(), m_BlockEntities);
+
+	// Check that all block entities have a valid blocktype at their respective coords (DEBUG-mode only):
+	#ifdef _DEBUG
+		for (cBlockEntityList::iterator itr = m_BlockEntities.begin(); itr != m_BlockEntities.end(); ++itr)
+		{
+			BLOCKTYPE EntityBlockType = (*itr)->GetBlockType();
+			BLOCKTYPE WorldBlockType = GetBlock((*itr)->GetRelX(), (*itr)->GetPosY(), (*itr)->GetRelZ());
+			ASSERT(EntityBlockType == WorldBlockType);
+		}  // for itr - m_BlockEntities
+	#endif  // _DEBUG
 	
 	// Set all block entities' World variable:
 	for (cBlockEntityList::iterator itr = m_BlockEntities.begin(); itr != m_BlockEntities.end(); ++itr)
diff --git a/src/Chunk.h b/src/Chunk.h
index 72a1f6c95..e5de22e3b 100644
--- a/src/Chunk.h
+++ b/src/Chunk.h
@@ -155,7 +155,7 @@ public:
 
 	void FastSetBlock(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType, BLOCKTYPE a_BlockMeta, bool a_SendToClients = true);  // Doesn't force block updates on neighbors, use for simple changes such as grass growing etc.
 	BLOCKTYPE GetBlock(int a_RelX, int a_RelY, int a_RelZ) const;
-	BLOCKTYPE GetBlock(Vector3i a_cords) const { return GetBlock(a_cords.x, a_cords.y, a_cords.z);}
+	BLOCKTYPE GetBlock(const Vector3i & a_RelCoords) const { return GetBlock(a_RelCoords.x, a_RelCoords.y, a_RelCoords.z); }
 	void      GetBlockTypeMeta(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta);
 	void      GetBlockInfo    (int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_Meta, NIBBLETYPE & a_SkyLight, NIBBLETYPE & a_BlockLight);
 	
diff --git a/src/ChunkDef.h b/src/ChunkDef.h
index dbb782d26..51075ab4a 100644
--- a/src/ChunkDef.h
+++ b/src/ChunkDef.h
@@ -419,7 +419,7 @@ public:
 	X   Data;
 	
 	cCoordWithData(int a_X, int a_Y, int a_Z) :
-		x(a_X), y(a_Y), z(a_Z)
+		x(a_X), y(a_Y), z(a_Z), Data()
 	{
 	}
 	
diff --git a/src/ClientHandle.cpp b/src/ClientHandle.cpp
index e2b438831..f9c6a664c 100644
--- a/src/ClientHandle.cpp
+++ b/src/ClientHandle.cpp
@@ -75,11 +75,21 @@ cClientHandle::cClientHandle(const cSocket * a_Socket, int a_ViewDistance) :
 	m_TimeSinceLastPacket(0),
 	m_Ping(1000),
 	m_PingID(1),
+	m_PingStartTime(0),
+	m_LastPingTime(1000),
 	m_BlockDigAnimStage(-1),
+	m_BlockDigAnimSpeed(0),
+	m_BlockDigAnimX(0),
+	m_BlockDigAnimY(256),  // Invalid Y, so that the coords don't get picked up
+	m_BlockDigAnimZ(0),
 	m_HasStartedDigging(false),
+	m_LastDigBlockX(0),
+	m_LastDigBlockY(256),  // Invalid Y, so that the coords don't get picked up
+	m_LastDigBlockZ(0),
 	m_State(csConnected),
 	m_ShouldCheckDownloaded(false),
 	m_NumExplosionsThisTick(0),
+	m_NumBlockChangeInteractionsThisTick(0),
 	m_UniqueID(0),
 	m_HasSentPlayerChunk(false),
 	m_Locale("en_GB")
@@ -912,11 +922,16 @@ void cClientHandle::HandleLeftClick(int a_BlockX, int a_BlockY, int a_BlockZ, eB
 		return;
 	}
 
-	// Check for clickthrough-blocks:
-	/* When the user breaks a fire block, the client send the wrong block location.
-	We must find the right block with the face direction. */
-	if (a_BlockFace != BLOCK_FACE_NONE)
+	if ((a_Status == DIG_STATUS_STARTED) || (a_Status == DIG_STATUS_FINISHED))
 	{
+		if (a_BlockFace == BLOCK_FACE_NONE)
+		{
+			return;
+		}
+
+		/* Check for clickthrough-blocks:
+		When the user breaks a fire block, the client send the wrong block location.
+		We must find the right block with the face direction. */
 		int BlockX = a_BlockX;
 		int BlockY = a_BlockY;
 		int BlockZ = a_BlockZ;
@@ -927,17 +942,16 @@ void cClientHandle::HandleLeftClick(int a_BlockX, int a_BlockY, int a_BlockZ, eB
 			a_BlockY = BlockY;
 			a_BlockZ = BlockZ;
 		}
-	}
 
-	if (
-		((a_Status == DIG_STATUS_STARTED) || (a_Status == DIG_STATUS_FINISHED)) &&  // Only do a radius check for block destruction - things like pickup tossing send coordinates that are to be ignored
-		((Diff(m_Player->GetPosX(), (double)a_BlockX) > 6) ||
-		(Diff(m_Player->GetPosY(), (double)a_BlockY) > 6) ||
-		(Diff(m_Player->GetPosZ(), (double)a_BlockZ) > 6))
-	)
-	{
-		m_Player->GetWorld()->SendBlockTo(a_BlockX, a_BlockY, a_BlockZ, m_Player);
-		return;
+		if (
+			((Diff(m_Player->GetPosX(), (double)a_BlockX) > 6) ||
+			(Diff(m_Player->GetPosY(), (double)a_BlockY) > 6) ||
+			(Diff(m_Player->GetPosZ(), (double)a_BlockZ) > 6))
+		)
+		{
+			m_Player->GetWorld()->SendBlockTo(a_BlockX, a_BlockY, a_BlockZ, m_Player);
+			return;
+		}
 	}
 
 	cPluginManager * PlgMgr = cRoot::Get()->GetPluginManager();
@@ -1045,7 +1059,8 @@ void cClientHandle::HandleBlockDigStarted(int a_BlockX, int a_BlockY, int a_Bloc
 
 	if (
 		m_Player->IsGameModeCreative() &&
-		ItemCategory::IsSword(m_Player->GetInventory().GetEquippedItem().m_ItemType)
+		ItemCategory::IsSword(m_Player->GetInventory().GetEquippedItem().m_ItemType) &&
+		(m_Player->GetWorld()->GetBlock(a_BlockX, a_BlockY, a_BlockZ) != E_BLOCK_FIRE)
 	)
 	{
 		// Players can't destroy blocks with a Sword in the hand.
diff --git a/src/CraftingRecipes.cpp b/src/CraftingRecipes.cpp
index 1a31a6e90..223184c64 100644
--- a/src/CraftingRecipes.cpp
+++ b/src/CraftingRecipes.cpp
@@ -1,4 +1,4 @@
-
+
 // CraftingRecipes.cpp
 
 // Interfaces to the cCraftingRecipes class representing the storage of crafting recipes
@@ -83,7 +83,7 @@ cItem & cCraftingGrid::GetItem(int x, int y) const
 
 
 
-void cCraftingGrid::SetItem(int x, int y, ENUM_ITEM_ID a_ItemType, int a_ItemCount, short a_ItemHealth)
+void cCraftingGrid::SetItem(int x, int y, ENUM_ITEM_ID a_ItemType, char a_ItemCount, short a_ItemHealth)
 {
 	// Accessible through scripting, must verify parameters:
 	if ((x < 0) || (x >= m_Width) || (y < 0) || (y >= m_Height))
@@ -228,7 +228,7 @@ void cCraftingRecipe::Clear(void)
 
 
 
-void cCraftingRecipe::SetResult(ENUM_ITEM_ID a_ItemType, int a_ItemCount, short a_ItemHealth)
+void cCraftingRecipe::SetResult(ENUM_ITEM_ID a_ItemType, char a_ItemCount, short a_ItemHealth)
 {
 	m_Result = cItem(a_ItemType, a_ItemCount, a_ItemHealth);
 }
@@ -324,7 +324,11 @@ void cCraftingRecipes::LoadRecipes(void)
 		return;
 	}
 	AString Everything;
-	f.ReadRestOfFile(Everything);
+	if (!f.ReadRestOfFile(Everything))
+	{
+		LOGWARNING("Cannot read file \"crafting.txt\", no crafting recipes will be available!");
+		return;
+	}
 	f.Close();
 	
 	// Split it into lines, then process each line as a single recipe:
@@ -362,7 +366,10 @@ void cCraftingRecipes::ClearRecipes(void)
 
 void cCraftingRecipes::AddRecipeLine(int a_LineNum, const AString & a_RecipeLine)
 {
-	AStringVector Sides = StringSplit(a_RecipeLine, "=");
+	AString RecipeLine(a_RecipeLine);
+	RecipeLine.erase(std::remove(RecipeLine.begin(), RecipeLine.end(), ' '), RecipeLine.end());
+
+	AStringVector Sides = StringSplit(RecipeLine, "=");
 	if (Sides.size() != 2)
 	{
 		LOGWARNING("crafting.txt: line %d: A single '=' was expected, got %d", a_LineNum, (int)Sides.size() - 1);
@@ -388,8 +395,7 @@ void cCraftingRecipes::AddRecipeLine(int a_LineNum, const AString & a_RecipeLine
 	}
 	if (ResultSplit.size() > 1)
 	{
-		Recipe->m_Result.m_ItemCount = atoi(ResultSplit[1].c_str());
-		if (Recipe->m_Result.m_ItemCount == 0)
+		if (!StringToInteger<char>(ResultSplit[1].c_str(), Recipe->m_Result.m_ItemCount))
 		{
 			LOGWARNING("crafting.txt: line %d: Cannot parse result count, ignoring the recipe.", a_LineNum);
 			LOGINFO("Offending line: \"%s\"", a_RecipeLine.c_str());
@@ -441,8 +447,7 @@ bool cCraftingRecipes::ParseItem(const AString & a_String, cItem & a_Item)
 	if (Split.size() > 1)
 	{
 		AString Damage = TrimString(Split[1]);
-		a_Item.m_ItemDamage = atoi(Damage.c_str());
-		if ((a_Item.m_ItemDamage == 0) && (Damage.compare("0") != 0))
+		if (!StringToInteger<short>(Damage.c_str(), a_Item.m_ItemDamage))
 		{
 			// Parsing the number failed
 			return false;
diff --git a/src/CraftingRecipes.h b/src/CraftingRecipes.h
index 0250d2f68..fe1e15817 100644
--- a/src/CraftingRecipes.h
+++ b/src/CraftingRecipes.h
@@ -33,7 +33,7 @@ public:
 	int     GetWidth (void) const {return m_Width; }
 	int     GetHeight(void) const {return m_Height; }
 	cItem & GetItem  (int x, int y) const;
-	void    SetItem  (int x, int y, ENUM_ITEM_ID a_ItemType, int a_ItemCount, short a_ItemHealth);
+	void    SetItem  (int x, int y, ENUM_ITEM_ID a_ItemType, char a_ItemCount, short a_ItemHealth);
 	void    SetItem  (int x, int y, const cItem & a_Item);
 	void    Clear    (void);
 	
@@ -72,13 +72,13 @@ public:
 	int           GetIngredientsHeight(void) const {return m_Ingredients.GetHeight(); }
 	cItem &       GetIngredient       (int x, int y) const {return m_Ingredients.GetItem(x, y); }
 	const cItem & GetResult           (void) const {return m_Result; }
-	void          SetResult           (ENUM_ITEM_ID a_ItemType, int a_ItemCount, short a_ItemHealth);
+	void          SetResult           (ENUM_ITEM_ID a_ItemType, char a_ItemCount, short a_ItemHealth);
 	void          SetResult           (const cItem & a_Item)
 	{
 		m_Result = a_Item;
 	}
 	
-	void          SetIngredient       (int x, int y, ENUM_ITEM_ID a_ItemType, int a_ItemCount, short a_ItemHealth)
+	void          SetIngredient       (int x, int y, ENUM_ITEM_ID a_ItemType, char a_ItemCount, short a_ItemHealth)
 	{
 		m_Ingredients.SetItem(x, y, a_ItemType, a_ItemCount, a_ItemHealth);
 	}
diff --git a/src/DeadlockDetect.cpp b/src/DeadlockDetect.cpp
index f73a45555..7f703416c 100644
--- a/src/DeadlockDetect.cpp
+++ b/src/DeadlockDetect.cpp
@@ -21,7 +21,8 @@ const int CYCLE_MILLISECONDS = 100;
 
 
 cDeadlockDetect::cDeadlockDetect(void) :
-	super("DeadlockDetect")
+	super("DeadlockDetect"),
+	m_IntervalSec(1000)
 {
 }
 
@@ -136,6 +137,7 @@ void cDeadlockDetect::CheckWorldAge(const AString & a_WorldName, Int64 a_Age)
 
 void cDeadlockDetect::DeadlockDetected(void)
 {
+	LOGERROR("Deadlock detected, aborting the server");
 	ASSERT(!"Deadlock detected");
 	abort();
 }
diff --git a/src/Defines.h b/src/Defines.h
index 0981077c4..78c58034e 100644
--- a/src/Defines.h
+++ b/src/Defines.h
@@ -528,7 +528,7 @@ inline float GetSpecialSignf( float a_Val)
 
 
 
-template<class T> inline T Diff(T a_Val1, T a_Val2)
+template <class T> inline T Diff(T a_Val1, T a_Val2)
 {
 	return std::abs(a_Val1 - a_Val2);
 }
diff --git a/src/Entities/Minecart.cpp b/src/Entities/Minecart.cpp
index d4eadc5d5..21c58fdba 100644
--- a/src/Entities/Minecart.cpp
+++ b/src/Entities/Minecart.cpp
@@ -871,11 +871,101 @@ bool cMinecart::TestEntityCollision(NIBBLETYPE a_RailMeta)
 			return true;
 		}
 		case E_META_RAIL_CURVED_ZM_XM:
+		case E_META_RAIL_CURVED_ZP_XP:
+		{
+			Vector3d Distance = MinecartCollisionCallback.GetCollidedEntityPosition() - Vector3d(GetPosX(), 0, GetPosZ());
+
+			// Prevent division by small numbers
+			if (abs(Distance.z) < 0.001)
+			{
+				Distance.z = 0.001;
+			}
+
+			/* Check to which side the minecart is to be pushed.
+			Let's consider a z-x-coordinate system where the minecart is the center (0/0).
+			The minecart moves along the line x = -z, the perpendicular line to this is x = z.
+			In order to decide to which side the minecart is to be pushed, it must be checked on what side of the perpendicular line the pushing entity is located. */
+			if (
+				((Distance.z > 0) && ((Distance.x / Distance.z) >= 1)) ||
+				((Distance.z < 0) && ((Distance.x / Distance.z) <= 1))
+			)
+			{
+				// Moving -X +Z
+				if ((-GetSpeedX() * 0.4 / sqrt(2)) < 0.01)
+				{
+					// ~ SpeedX >= 0 Immobile or not moving in the "right" direction. Give it a bump!
+					AddSpeedX(-4 / sqrt(2));
+					AddSpeedZ(4 / sqrt(2));
+				}
+				else
+				{
+					// ~ SpeedX < 0 Moving in the "right" direction. Only accelerate it a bit.
+					SetSpeedX(GetSpeedX() * 0.4 / sqrt(2));
+					SetSpeedZ(GetSpeedZ() * 0.4 / sqrt(2));
+				}
+			}
+			else if ((GetSpeedX() * 0.4 / sqrt(2)) < 0.01)
+			{
+				// Moving +X -Z
+				// ~ SpeedX <= 0 Immobile or not moving in the "right" direction
+				AddSpeedX(4 / sqrt(2));
+				AddSpeedZ(-4 / sqrt(2));
+			}
+			else
+			{
+				// ~ SpeedX > 0 Moving in the "right" direction
+				SetSpeedX(GetSpeedX() * 0.4 / sqrt(2));
+				SetSpeedZ(GetSpeedZ() * 0.4 / sqrt(2));
+			}
+			break;
+		}
 		case E_META_RAIL_CURVED_ZM_XP:
 		case E_META_RAIL_CURVED_ZP_XM:
-		case E_META_RAIL_CURVED_ZP_XP:
 		{
-			// TODO - simply can't be bothered right now
+			Vector3d Distance = MinecartCollisionCallback.GetCollidedEntityPosition() - Vector3d(GetPosX(), 0, GetPosZ());
+
+			// Prevent division by small numbers
+			if (abs(Distance.z) < 0.001)
+			{
+				Distance.z = 0.001;
+			}
+
+			/* Check to which side the minecart is to be pushed.
+			Let's consider a z-x-coordinate system where the minecart is the center (0/0).
+			The minecart moves along the line x = z, the perpendicular line to this is x = -z.
+			In order to decide to which side the minecart is to be pushed, it must be checked on what side of the perpendicular line the pushing entity is located. */
+			if (
+				((Distance.z > 0) && ((Distance.x / Distance.z) <= -1)) ||
+				((Distance.z < 0) && ((Distance.x / Distance.z) >= -1))
+			)
+			{
+				// Moving +X +Z
+				if ((GetSpeedX() * 0.4) < 0.01)
+				{
+					// ~ SpeedX <= 0 Immobile or not moving in the "right" direction
+					AddSpeedX(4 / sqrt(2));
+					AddSpeedZ(4 / sqrt(2));
+				}
+				else
+				{
+					// ~ SpeedX > 0 Moving in the "right" direction
+					SetSpeedX(GetSpeedX() * 0.4 / sqrt(2));
+					SetSpeedZ(GetSpeedZ() * 0.4 / sqrt(2));
+				}
+			}
+			else if ((-GetSpeedX() * 0.4) < 0.01)
+			{
+				// Moving -X -Z
+				// ~ SpeedX >= 0 Immobile or not moving in the "right" direction
+				AddSpeedX(-4 / sqrt(2));
+				AddSpeedZ(-4 / sqrt(2));
+			}
+			else
+			{
+				// ~ SpeedX < 0 Moving in the "right" direction
+				SetSpeedX(GetSpeedX() * 0.4 / sqrt(2));
+				SetSpeedZ(GetSpeedZ() * 0.4 / sqrt(2));
+			}
 			break;
 		}
 		default: break;
diff --git a/src/Entities/Player.cpp b/src/Entities/Player.cpp
index 32290885d..b0dd40615 100644
--- a/src/Entities/Player.cpp
+++ b/src/Entities/Player.cpp
@@ -10,8 +10,6 @@
 #include "../Bindings/PluginManager.h"
 #include "../BlockEntities/BlockEntity.h"
 #include "../BlockEntities/EnderChestEntity.h"
-#include "../GroupManager.h"
-#include "../Group.h"
 #include "../Root.h"
 #include "../OSSupport/Timer.h"
 #include "../Chunk.h"
@@ -59,7 +57,6 @@ cPlayer::cPlayer(cClientHandle* a_Client, const AString & a_PlayerName) :
 	m_EnderChestContents(9, 3),
 	m_CurrentWindow(NULL),
 	m_InventoryWindow(NULL),
-	m_Color('-'),
 	m_GameMode(eGameMode_NotSet),
 	m_IP(""),
 	m_ClientHandle(a_Client),
@@ -1367,48 +1364,6 @@ void cPlayer::SetVisible(bool a_bVisible)
 
 
 
-void cPlayer::AddToGroup( const AString & a_GroupName)
-{
-	cGroup* Group = cRoot::Get()->GetGroupManager()->GetGroup( a_GroupName);
-	m_Groups.push_back( Group);
-	LOGD("Added %s to group %s", GetName().c_str(), a_GroupName.c_str());
-	ResolveGroups();
-	ResolvePermissions();
-}
-
-
-
-
-
-void cPlayer::RemoveFromGroup( const AString & a_GroupName)
-{
-	bool bRemoved = false;
-	for (GroupList::iterator itr = m_Groups.begin(); itr != m_Groups.end(); ++itr)
-	{
-		if ((*itr)->GetName().compare(a_GroupName) == 0)
-		{
-			m_Groups.erase( itr);
-			bRemoved = true;
-			break;
-		}
-	}
-
-	if (bRemoved)
-	{
-		LOGD("Removed %s from group %s", GetName().c_str(), a_GroupName.c_str());
-		ResolveGroups();
-		ResolvePermissions();
-	}
-	else
-	{
-		LOGWARN("Tried to remove %s from group %s but was not in that group", GetName().c_str(), a_GroupName.c_str());
-	}
-}
-
-
-
-
-
 bool cPlayer::HasPermission(const AString & a_Permission)
 {
 	if (a_Permission.empty())
@@ -1417,33 +1372,18 @@ bool cPlayer::HasPermission(const AString & a_Permission)
 		return true;
 	}
 	
-	AStringVector Split = StringSplit( a_Permission, ".");
-	PermissionMap Possibilities = m_ResolvedPermissions;
-	// Now search the namespaces
-	while (Possibilities.begin() != Possibilities.end())
+	AStringVector Split = StringSplit(a_Permission, ".");
+
+	// Iterate over all granted permissions; if any matches, then return success:
+	for (AStringVectorVector::const_iterator itr = m_SplitPermissions.begin(), end = m_SplitPermissions.end(); itr != end; ++itr)
 	{
-		PermissionMap::iterator itr = Possibilities.begin();
-		if (itr->second)
+		if (PermissionMatches(Split, *itr))
 		{
-			AStringVector OtherSplit = StringSplit( itr->first, ".");
-			if (OtherSplit.size() <= Split.size())
-			{
-				unsigned int i;
-				for (i = 0; i < OtherSplit.size(); ++i)
-				{
-					if (OtherSplit[i].compare( Split[i]) != 0)
-					{
-						if (OtherSplit[i].compare("*") == 0) return true;  // WildCard man!! WildCard!
-						break;
-					}
-				}
-				if (i == Split.size()) return true;
-			}
+			return true;
 		}
-		Possibilities.erase( itr);
-	}
+	}  // for itr - m_SplitPermissions[]
 
-	// Nothing that matched :(
+	// No granted permission matches
 	return false;
 }
 
@@ -1451,82 +1391,35 @@ bool cPlayer::HasPermission(const AString & a_Permission)
 
 
 
-bool cPlayer::IsInGroup( const AString & a_Group)
+bool cPlayer::PermissionMatches(const AStringVector & a_Permission, const AStringVector & a_Template)
 {
-	for (GroupList::iterator itr = m_ResolvedGroups.begin(); itr != m_ResolvedGroups.end(); ++itr)
+	// Check the sub-items if they are the same or there's a wildcard:
+	size_t lenP = a_Permission.size();
+	size_t lenT = a_Template.size();
+	size_t minLen = std::min(lenP, lenT);
+	for (size_t i = 0; i < minLen; i++)
 	{
-		if (a_Group.compare( (*itr)->GetName().c_str()) == 0)
+		if (a_Template[i] == "*")
+		{
+			// Has matched so far and now there's a wildcard in the template, so the permission matches:
 			return true;
-	}
-	return false;
-}
-
-
-
-
-
-void cPlayer::ResolvePermissions()
-{
-	m_ResolvedPermissions.clear();  // Start with an empty map
-
-	// Copy all player specific permissions into the resolved permissions map
-	for (PermissionMap::iterator itr = m_Permissions.begin(); itr != m_Permissions.end(); ++itr)
-	{
-		m_ResolvedPermissions[ itr->first ] = itr->second;
-	}
-
-	for (GroupList::iterator GroupItr = m_ResolvedGroups.begin(); GroupItr != m_ResolvedGroups.end(); ++GroupItr)
-	{
-		const cGroup::PermissionMap & Permissions = (*GroupItr)->GetPermissions();
-		for (cGroup::PermissionMap::const_iterator itr = Permissions.begin(); itr != Permissions.end(); ++itr)
+		}
+		if (a_Permission[i] != a_Template[i])
 		{
-			m_ResolvedPermissions[ itr->first ] = itr->second;
+			// Found a mismatch
+			return false;
 		}
 	}
-}
-
-
 
-
-
-void cPlayer::ResolveGroups()
-{
-	// Clear resolved groups first
-	m_ResolvedGroups.clear();
-
-	// Get a complete resolved list of all groups the player is in
-	std::map< cGroup*, bool > AllGroups;  // Use a map, because it's faster than iterating through a list to find duplicates
-	GroupList ToIterate;
-	for (GroupList::iterator GroupItr = m_Groups.begin(); GroupItr != m_Groups.end(); ++GroupItr)
+	// So far all the sub-items have matched
+	// If the sub-item count is the same, then the permission matches:
+	if (lenP == lenT)
 	{
-		ToIterate.push_back( *GroupItr);
-	}
-	while (ToIterate.begin() != ToIterate.end())
-	{
-		cGroup* CurrentGroup = *ToIterate.begin();
-		if (AllGroups.find( CurrentGroup) != AllGroups.end())
-		{
-			LOGWARNING("ERROR: Player \"%s\" is in the group multiple times (\"%s\"). Please fix your settings in users.ini!",
-				GetName().c_str(), CurrentGroup->GetName().c_str()
-			);
-		}
-		else
-		{
-			AllGroups[ CurrentGroup ] = true;
-			m_ResolvedGroups.push_back( CurrentGroup);  // Add group to resolved list
-			const cGroup::GroupList & Inherits = CurrentGroup->GetInherits();
-			for (cGroup::GroupList::const_iterator itr = Inherits.begin(); itr != Inherits.end(); ++itr)
-			{
-				if (AllGroups.find( *itr) != AllGroups.end())
-				{
-					LOGERROR("ERROR: Player %s is in the same group multiple times due to inheritance (%s). FIX IT!", GetName().c_str(), (*itr)->GetName().c_str());
-					continue;
-				}
-				ToIterate.push_back( *itr);
-			}
-		}
-		ToIterate.erase( ToIterate.begin());
+		return true;
 	}
+
+	// There are more sub-items in either the permission or the template, not a match:
+	return false;
 }
 
 
@@ -1535,17 +1428,14 @@ void cPlayer::ResolveGroups()
 
 AString cPlayer::GetColor(void) const
 {
-	if (m_Color != '-')
+	if (m_MsgNameColorCode.empty() || (m_MsgNameColorCode == "-"))
 	{
-		return cChatColor::Delimiter + m_Color;
+		// Color has not been assigned, return an empty string:
+		return AString();
 	}
 
-	if (m_Groups.size() < 1)
-	{
-		return cChatColor::White;
-	}
-
-	return (*m_Groups.begin())->GetColor();
+	// Return the color, including the delimiter:
+	return cChatColor::Delimiter + m_MsgNameColorCode;
 }
 
 
@@ -1661,48 +1551,9 @@ bool cPlayer::DoMoveToWorld(cWorld * a_World, bool a_ShouldSendRespawn)
 
 
 
-void cPlayer::LoadPermissionsFromDisk()
-{
-	m_Groups.clear();
-	m_Permissions.clear();
-
-	cIniFile IniFile;
-	if (IniFile.ReadFile("users.ini"))
-	{
-		AString Groups = IniFile.GetValueSet(GetName(), "Groups", "Default");
-		AStringVector Split = StringSplitAndTrim(Groups, ",");
-
-		for (AStringVector::const_iterator itr = Split.begin(), end = Split.end(); itr != end; ++itr)
-		{
-			if (!cRoot::Get()->GetGroupManager()->ExistsGroup(*itr))
-			{
-				LOGWARNING("The group %s for player %s was not found!", itr->c_str(), GetName().c_str());
-			}
-			AddToGroup(*itr);
-		}
-
-		AString Color = IniFile.GetValue(GetName(), "Color", "-");
-		if (!Color.empty())
-		{
-			m_Color = Color[0];
-		}
-	}
-	else
-	{
-		cGroupManager::GenerateDefaultUsersIni(IniFile);
-		IniFile.AddValue("Groups", GetName(), "Default");
-		AddToGroup("Default");
-	}
-	IniFile.WriteFile("users.ini");
-	ResolvePermissions();
-}
-
-
-
-
 bool cPlayer::LoadFromDisk(cWorldPtr & a_World)
 {
-	LoadPermissionsFromDisk();
+	LoadRank();
 
 	// Load from the UUID file:
 	if (LoadFromFile(GetUUIDFileName(m_UUID), a_World))
@@ -1937,26 +1788,6 @@ bool cPlayer::SaveToDisk()
 
 
 
-cPlayer::StringList cPlayer::GetResolvedPermissions()
-{
-	StringList Permissions;
-
-	const PermissionMap& ResolvedPermissions = m_ResolvedPermissions;
-	for (PermissionMap::const_iterator itr = ResolvedPermissions.begin(); itr != ResolvedPermissions.end(); ++itr)
-	{
-		if (itr->second)
-		{
-			Permissions.push_back( itr->first);
-		}
-	}
-
-	return Permissions;
-}
-
-
-
-
-
 void cPlayer::UseEquippedItem(int a_Amount)
 {
 	if (IsGameModeCreative())  // No damage in creative
@@ -2215,6 +2046,31 @@ void cPlayer::ApplyFoodExhaustionFromMovement()
 
 
 
+void cPlayer::LoadRank(void)
+{
+	// Load the values from cRankManager:
+	cRankManager & RankMgr = cRoot::Get()->GetRankManager();
+	m_Rank = RankMgr.GetPlayerRankName(m_UUID);
+	if (m_Rank.empty())
+	{
+		m_Rank = RankMgr.GetDefaultRank();
+	}
+	m_Permissions = RankMgr.GetPlayerPermissions(m_UUID);
+	RankMgr.GetRankVisuals(m_Rank, m_MsgPrefix, m_MsgSuffix, m_MsgNameColorCode);
+
+	// Break up the individual permissions on each dot, into m_SplitPermissions:
+	m_SplitPermissions.clear();
+	m_SplitPermissions.reserve(m_Permissions.size());
+	for (AStringVector::const_iterator itr = m_Permissions.begin(), end = m_Permissions.end(); itr != end; ++itr)
+	{
+		m_SplitPermissions.push_back(StringSplit(*itr, "."));
+	}  // for itr - m_Permissions[]
+}
+
+
+
+
+
 void cPlayer::Detach()
 {
 	super::Detach();
diff --git a/src/Entities/Player.h b/src/Entities/Player.h
index d3ed1ef9d..9821cc6d9 100644
--- a/src/Entities/Player.h
+++ b/src/Entities/Player.h
@@ -13,7 +13,6 @@
 
 
 
-class cGroup;
 class cWindow;
 class cClientHandle;
 class cTeam;
@@ -236,24 +235,20 @@ public:
 	
 	// tolua_end
 
-	typedef std::list< cGroup* > GroupList;
-	typedef std::list< std::string > StringList;
+	bool HasPermission(const AString & a_Permission);  // tolua_export
 
-	/** Adds a player to existing group or creates a new group when it doesn't exist */
-	void AddToGroup( const AString & a_GroupName);  // tolua_export
-	
-	/** Removes a player from the group, resolves permissions and group inheritance (case sensitive) */
-	void RemoveFromGroup( const AString & a_GroupName);  // tolua_export
-	
-	bool HasPermission( const AString & a_Permission);  // tolua_export
-	const GroupList & GetGroups() { return m_Groups; }  // >> EXPORTED IN MANUALBINDINGS <<
-	StringList GetResolvedPermissions();  // >> EXPORTED IN MANUALBINDINGS <<
-	bool IsInGroup( const AString & a_Group);  // tolua_export
+	/** Returns true iff a_Permission matches the a_Template.
+	A match is defined by either being exactly the same, or each sub-item matches until there's a wildcard in a_Template.
+	Ie. {"a", "b", "c"} matches {"a", "b", "*"} but doesn't match {"a", "b"} */
+	static bool PermissionMatches(const AStringVector & a_Permission, const AStringVector & a_Template);  // Exported in ManualBindings with AString params
+
+	/** Returns all the permissions that the player has assigned to them. */
+	const AStringVector & GetPermissions(void) { return m_Permissions; }  // Exported in ManualBindings.cpp
 
 	// tolua_begin
 	
-	/** Returns the full color code to use for this player, based on their primary group or set in m_Color.
-	The returned value includes the cChatColor::Delimiter. */
+	/** Returns the full color code to use for this player, based on their rank.
+	The returned value either is empty, or includes the cChatColor::Delimiter. */
 	AString GetColor(void) const;
 
 	/** tosses the item in the selected hotbar slot */
@@ -347,8 +342,6 @@ public:
 	*/
 	bool LoadFromFile(const AString & a_FileName, cWorldPtr & a_World);
 	
-	void LoadPermissionsFromDisk(void);  // tolua_export
-
 	const AString & GetLoadedWorldName() { return m_LoadedWorldName; }
 
 	void UseEquippedItem(int a_Amount = 1);
@@ -422,6 +415,11 @@ public:
 	/** Returns the UUID (short format) that has been read from the client, or empty string if not available. */
 	const AString & GetUUID(void) const { return m_UUID; }
 
+	/** (Re)loads the rank and permissions from the cRankManager.
+	Expects the m_UUID member to be valid.
+	Loads the m_Rank, m_Permissions, m_MsgPrefix, m_MsgSuffix and m_MsgNameColorCode members. */
+	void LoadRank(void);
+
 	// tolua_end
 
 	// cEntity overrides:
@@ -432,12 +430,22 @@ public:
 	virtual void Detach(void);
 	
 protected:
-	typedef std::map< std::string, bool > PermissionMap;
-	PermissionMap m_ResolvedPermissions;
-	PermissionMap m_Permissions;
 
-	GroupList m_ResolvedGroups;
-	GroupList m_Groups;
+	typedef std::vector<std::vector<AString> > AStringVectorVector;
+
+	/** The name of the rank assigned to this player. */
+	AString m_Rank;
+
+	/** All the permissions that this player has, based on their rank. */
+	AStringVector m_Permissions;
+
+	/** All the permissions that this player has, based on their rank, split into individual dot-delimited parts.
+	This is used mainly by the HasPermission() function to optimize the lookup. */
+	AStringVectorVector m_SplitPermissions;
+
+	// Message visuals:
+	AString m_MsgPrefix, m_MsgSuffix;
+	AString m_MsgNameColorCode;
 
 	AString m_PlayerName;
 	AString m_LoadedWorldName;
@@ -482,8 +490,6 @@ protected:
 	/** The player's last saved bed position */
 	Vector3i m_LastBedPos;
 
-	char m_Color;
-
 	eGameMode m_GameMode;
 	AString m_IP;
 	
diff --git a/src/FastRandom.h b/src/FastRandom.h
index 2061a3958..cebebad96 100644
--- a/src/FastRandom.h
+++ b/src/FastRandom.h
@@ -45,7 +45,7 @@ public:
 	float NextFloat(float a_Range, int a_Salt);
 
 	/** Returns a random float between 0 and 1. */
-	float NextFloat(void) { return NextFloat(1); };
+	float NextFloat(void) { return NextFloat(1); }
 
 	/** Returns a random int in the range [a_Begin .. a_End] */
 	int GenerateRandomInteger(int a_Begin, int a_End);
diff --git a/src/Generating/CMakeLists.txt b/src/Generating/CMakeLists.txt
index 58df9d421..33d622b42 100644
--- a/src/Generating/CMakeLists.txt
+++ b/src/Generating/CMakeLists.txt
@@ -12,6 +12,7 @@ SET (SRCS
 	CompoGen.cpp
 	ComposableGenerator.cpp
 	DistortedHeightmap.cpp
+	DungeonRoomsFinisher.cpp
 	EndGen.cpp
 	FinishGen.cpp
 	GridStructGen.cpp
@@ -40,6 +41,7 @@ SET (HDRS
 	CompoGen.h
 	ComposableGenerator.h
 	DistortedHeightmap.h
+	DungeonRoomsFinisher.h
 	EndGen.h
 	FinishGen.h
 	GridStructGen.h
diff --git a/src/Generating/Caves.cpp b/src/Generating/Caves.cpp
index 6fc371958..71154dff9 100644
--- a/src/Generating/Caves.cpp
+++ b/src/Generating/Caves.cpp
@@ -166,6 +166,9 @@ cCaveTunnel::cCaveTunnel(
 	if ((a_BlockStartY <= 0) && (a_BlockEndY <= 0))
 	{
 		// Don't bother detailing this cave, it's under the world anyway
+		m_MinBlockX = m_MaxBlockX = 0;
+		m_MinBlockY = m_MaxBlockY = -1;
+		m_MinBlockZ = m_MaxBlockZ = 0;
 		return;
 	}
 
diff --git a/src/Generating/ChunkGenerator.cpp b/src/Generating/ChunkGenerator.cpp
index 3d5af152c..a1188f984 100644
--- a/src/Generating/ChunkGenerator.cpp
+++ b/src/Generating/ChunkGenerator.cpp
@@ -27,6 +27,7 @@ const unsigned int QUEUE_SKIP_LIMIT = 500;
 
 cChunkGenerator::cChunkGenerator(void) :
 	super("cChunkGenerator"),
+	m_Seed(0),  // Will be overwritten by the actual generator
 	m_Generator(NULL),
 	m_PluginInterface(NULL),
 	m_ChunkSink(NULL)
diff --git a/src/Generating/ComposableGenerator.cpp b/src/Generating/ComposableGenerator.cpp
index 2f575fe27..6f4007d24 100644
--- a/src/Generating/ComposableGenerator.cpp
+++ b/src/Generating/ComposableGenerator.cpp
@@ -19,6 +19,7 @@
 
 #include "Caves.h"
 #include "DistortedHeightmap.h"
+#include "DungeonRoomsFinisher.h"
 #include "EndGen.h"
 #include "MineShafts.h"
 #include "NetherFortGen.h"
@@ -343,6 +344,14 @@ void cComposableGenerator::InitFinishGens(cIniFile & a_IniFile)
 			float Threshold = (float)a_IniFile.GetValueSetF("Generator", "DualRidgeCavesThreshold", 0.3);
 			m_FinishGens.push_back(new cStructGenDualRidgeCaves(Seed, Threshold));
 		}
+		else if (NoCaseCompare(*itr, "DungeonRooms") == 0)
+		{
+			int     GridSize      = a_IniFile.GetValueSetI("Generator", "DungeonRoomsGridSize", 48);
+			int     MaxSize       = a_IniFile.GetValueSetI("Generator", "DungeonRoomsMaxSize", 7);
+			int     MinSize       = a_IniFile.GetValueSetI("Generator", "DungeonRoomsMinSize", 5);
+			AString HeightDistrib = a_IniFile.GetValueSet ("Generator", "DungeonRoomsHeightDistrib", "0, 0; 10, 10; 11, 500; 40, 500; 60, 40; 90, 1");
+			m_FinishGens.push_back(new cDungeonRoomsFinisher(*m_HeightGen, Seed, GridSize, MaxSize, MinSize, HeightDistrib));
+		}
 		else if (NoCaseCompare(*itr, "Ice") == 0)
 		{
 			m_FinishGens.push_back(new cFinishGenIce);
diff --git a/src/Generating/DungeonRoomsFinisher.cpp b/src/Generating/DungeonRoomsFinisher.cpp
new file mode 100644
index 000000000..f213455d6
--- /dev/null
+++ b/src/Generating/DungeonRoomsFinisher.cpp
@@ -0,0 +1,279 @@
+
+// DungeonRoomsFinisher.cpp
+
+// Declares the cDungeonRoomsFinisher class representing the finisher that generates dungeon rooms
+
+#include "Globals.h"
+#include "DungeonRoomsFinisher.h"
+#include "../FastRandom.h"
+
+
+
+
+
+/** Height, in blocks, of the internal dungeon room open space. This many air blocks Y-wise. */
+static const int ROOM_HEIGHT = 4;
+
+
+
+
+
+////////////////////////////////////////////////////////////////////////////////
+// cDungeonRoom:
+
+class cDungeonRoom :
+	public cGridStructGen::cStructure
+{
+	typedef cGridStructGen::cStructure super;
+
+public:
+
+	cDungeonRoom(
+		int a_GridX, int a_GridZ,
+		int a_OriginX, int a_OriginZ,
+		int a_HalfSizeX, int a_HalfSizeZ,
+		int a_FloorHeight,
+		cNoise & a_Noise
+	) :
+		super(a_GridX, a_GridZ, a_OriginX, a_OriginZ),
+		m_StartX(a_OriginX - a_HalfSizeX),
+		m_EndX(a_OriginX + a_HalfSizeX),
+		m_StartZ(a_OriginZ - a_HalfSizeZ),
+		m_EndZ(a_OriginZ + a_HalfSizeZ),
+		m_FloorHeight(a_FloorHeight)
+	{
+		/*
+		Pick coords next to the wall for the chests.
+		This is done by indexing the possible coords, picking any one for the first chest
+		and then picking another position for the second chest that is not adjacent to the first pos
+		*/
+		int rnd = a_Noise.IntNoise2DInt(a_OriginX, a_OriginZ) / 7;
+		int SizeX = m_EndX - m_StartX - 1;
+		int SizeZ = m_EndZ - m_StartZ - 1;
+		int NumPositions = 2 * SizeX + 2 * SizeZ;
+		int FirstChestPos = rnd % NumPositions;  // The corner positions are a bit more likely, but we don't mind
+		rnd = rnd / 512;
+		int SecondChestPos = (FirstChestPos + 2 + (rnd % (NumPositions - 3))) % NumPositions;
+		m_Chest1 = DecodeChestCoords(FirstChestPos,  SizeX, SizeZ);
+		m_Chest2 = DecodeChestCoords(SecondChestPos, SizeX, SizeZ);
+	}
+
+protected:
+
+	// The X range of the room, start inclusive, end exclusive:
+	int m_StartX, m_EndX;
+
+	// The Z range of the room, start inclusive, end exclusive:
+	int m_StartZ, m_EndZ;
+
+	/** The Y coord of the floor of the room */
+	int m_FloorHeight;
+
+	/** The (absolute) coords of the first chest. The Y coord represents the chest's Meta value (facing). */
+	Vector3i m_Chest1;
+
+	/** The (absolute) coords of the second chest. The Y coord represents the chest's Meta value (facing). */
+	Vector3i m_Chest2;
+
+
+
+	/** Decodes the position index along the room walls into a proper 2D position for a chest. */
+	Vector3i DecodeChestCoords(int a_PosIdx, int a_SizeX, int a_SizeZ)
+	{
+		if (a_PosIdx < a_SizeX)
+		{
+			// Return a coord on the ZM side of the room:
+			return Vector3i(m_StartX + a_PosIdx + 1, E_META_CHEST_FACING_ZP, m_StartZ + 1);
+		}
+		a_PosIdx -= a_SizeX;
+		if (a_PosIdx < a_SizeZ)
+		{
+			// Return a coord on the XP side of the room:
+			return Vector3i(m_EndX - 1, E_META_CHEST_FACING_XM, m_StartZ + a_PosIdx + 1);
+		}
+		a_PosIdx -= a_SizeZ;
+		if (a_PosIdx < a_SizeX)
+		{
+			// Return a coord on the ZP side of the room:
+			return Vector3i(m_StartX + a_PosIdx + 1, E_META_CHEST_FACING_ZM, m_StartZ + 1);
+		}
+		a_PosIdx -= a_SizeX;
+		// Return a coord on the XM side of the room:
+		return Vector3i(m_StartX + 1, E_META_CHEST_FACING_XP, m_StartZ + a_PosIdx + 1);
+	}
+
+
+
+	/** Fills the specified area of blocks in the chunk with the specified blocktype if they are one of the overwritten block types.
+	The coords are absolute, start coords are inclusive, end coords are exclusive. */
+	void ReplaceCuboid(cChunkDesc & a_ChunkDesc, int a_StartX, int a_StartY, int a_StartZ, int a_EndX, int a_EndY, int a_EndZ, BLOCKTYPE a_DstBlockType)
+	{
+		int BlockX = a_ChunkDesc.GetChunkX() * cChunkDef::Width;
+		int BlockZ = a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
+		int RelStartX = Clamp(a_StartX - BlockX, 0, cChunkDef::Width - 1);
+		int RelStartZ = Clamp(a_StartZ - BlockZ, 0, cChunkDef::Width - 1);
+		int RelEndX   = Clamp(a_EndX - BlockX,   0, cChunkDef::Width);
+		int RelEndZ   = Clamp(a_EndZ - BlockZ,   0, cChunkDef::Width);
+		for (int y = a_StartY; y < a_EndY; y++)
+		{
+			for (int z = RelStartZ; z < RelEndZ; z++)
+			{
+				for (int x = RelStartX; x < RelEndX; x++)
+				{
+					if (cBlockInfo::CanBeTerraformed(a_ChunkDesc.GetBlockType(x, y, z)))
+					{
+						a_ChunkDesc.SetBlockType(x, y, z, a_DstBlockType);
+					}
+				}  // for x
+			}  // for z
+		}  // for z
+	}
+
+
+
+	/** Fills the specified area of blocks in the chunk with a random pattern of the specified blocktypes, if they are one of the overwritten block types.
+	The coords are absolute, start coords are inclusive, end coords are exclusive. The first blocktype uses 75% chance, the second 25% chance. */
+	void ReplaceCuboidRandom(cChunkDesc & a_ChunkDesc, int a_StartX, int a_StartY, int a_StartZ, int a_EndX, int a_EndY, int a_EndZ, BLOCKTYPE a_DstBlockType1, BLOCKTYPE a_DstBlockType2)
+	{
+		int BlockX = a_ChunkDesc.GetChunkX() * cChunkDef::Width;
+		int BlockZ = a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
+		int RelStartX = Clamp(a_StartX - BlockX, 0, cChunkDef::Width - 1);
+		int RelStartZ = Clamp(a_StartZ - BlockZ, 0, cChunkDef::Width - 1);
+		int RelEndX   = Clamp(a_EndX - BlockX,   0, cChunkDef::Width);
+		int RelEndZ   = Clamp(a_EndZ - BlockZ,   0, cChunkDef::Width);
+		cFastRandom rnd;
+		for (int y = a_StartY; y < a_EndY; y++)
+		{
+			for (int z = RelStartZ; z < RelEndZ; z++)
+			{
+				for (int x = RelStartX; x < RelEndX; x++)
+				{
+					if (cBlockInfo::CanBeTerraformed(a_ChunkDesc.GetBlockType(x, y, z)))
+					{
+						BLOCKTYPE BlockType = (rnd.NextInt(101) < 75) ? a_DstBlockType1 : a_DstBlockType2;
+						a_ChunkDesc.SetBlockType(x, y, z, BlockType);
+					}
+				}  // for x
+			}  // for z
+		}  // for z
+	}
+
+
+
+	/** Tries to place a chest at the specified (absolute) coords.
+	Does nothing if the coords are outside the chunk. */
+	void TryPlaceChest(cChunkDesc & a_ChunkDesc, const Vector3i & a_Chest)
+	{
+		int RelX = a_Chest.x - a_ChunkDesc.GetChunkX() * cChunkDef::Width;
+		int RelZ = a_Chest.z - a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
+		if (
+			(RelX < 0) || (RelX >= cChunkDef::Width) ||  // The X coord is not in this chunk
+			(RelZ < 0) || (RelZ >= cChunkDef::Width)     // The Z coord is not in this chunk
+		)
+		{
+			return;
+		}
+		a_ChunkDesc.SetBlockTypeMeta(RelX, m_FloorHeight + 1, RelZ, E_BLOCK_CHEST, (NIBBLETYPE)a_Chest.y);
+
+		// TODO: Fill the chest with random loot
+	}
+
+
+
+	// cGridStructGen::cStructure override:
+	virtual void DrawIntoChunk(cChunkDesc & a_ChunkDesc) override
+	{
+		if (
+			(m_EndX   <  a_ChunkDesc.GetChunkX() * cChunkDef::Width) ||
+			(m_StartX >= a_ChunkDesc.GetChunkX() * cChunkDef::Width + cChunkDef::Width) ||
+			(m_EndZ   <  a_ChunkDesc.GetChunkZ() * cChunkDef::Width) ||
+			(m_StartZ >= a_ChunkDesc.GetChunkZ() * cChunkDef::Width + cChunkDef::Width)
+		)
+		{
+			// The chunk is not intersecting the room at all, bail out
+			return;
+		}
+		int b = m_FloorHeight + 1;  // Bottom
+		int t = m_FloorHeight + 1 + ROOM_HEIGHT;  // Top
+		ReplaceCuboidRandom(a_ChunkDesc, m_StartX, m_FloorHeight, m_StartZ, m_EndX + 1, b, m_EndZ + 1, E_BLOCK_MOSSY_COBBLESTONE, E_BLOCK_COBBLESTONE);  // Floor
+		ReplaceCuboid(a_ChunkDesc, m_StartX + 1, b, m_StartZ + 1, m_EndX, t, m_EndZ, E_BLOCK_AIR);  // Insides
+
+		// Walls:
+		ReplaceCuboid(a_ChunkDesc, m_StartX, b, m_StartZ, m_StartX + 1, t, m_EndZ,       E_BLOCK_COBBLESTONE);  // XM wall
+		ReplaceCuboid(a_ChunkDesc, m_EndX,   b, m_StartZ, m_EndX + 1,   t, m_EndZ,       E_BLOCK_COBBLESTONE);  // XP wall
+		ReplaceCuboid(a_ChunkDesc, m_StartX, b, m_StartZ, m_EndX + 1,   t, m_StartZ + 1, E_BLOCK_COBBLESTONE);  // ZM wall
+		ReplaceCuboid(a_ChunkDesc, m_StartX, b, m_EndZ,   m_EndX + 1,   t, m_EndZ + 1,   E_BLOCK_COBBLESTONE);  // ZP wall
+
+		// Place chests:
+		TryPlaceChest(a_ChunkDesc, m_Chest1);
+		TryPlaceChest(a_ChunkDesc, m_Chest2);
+
+		// Place the spawner:
+		int CenterX = (m_StartX + m_EndX) / 2 - a_ChunkDesc.GetChunkX() * cChunkDef::Width;
+		int CenterZ = (m_StartZ + m_EndZ) / 2 - a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
+		if (
+			(CenterX >= 0) && (CenterX < cChunkDef::Width) &&
+			(CenterZ >= 0) && (CenterZ < cChunkDef::Width)
+		)
+		{
+			a_ChunkDesc.SetBlockTypeMeta(CenterX, b, CenterZ, E_BLOCK_MOB_SPAWNER, 0);
+			// TODO: Set the spawned mob
+		}
+	}
+} ;
+
+
+
+
+
+
+////////////////////////////////////////////////////////////////////////////////
+// cDungeonRoomsFinisher:
+
+cDungeonRoomsFinisher::cDungeonRoomsFinisher(cTerrainHeightGen & a_HeightGen, int a_Seed, int a_GridSize, int a_MaxSize, int a_MinSize, const AString & a_HeightDistrib) :
+	super(a_Seed + 100, a_GridSize, a_GridSize, a_GridSize, a_GridSize, a_MaxSize, a_MaxSize, 1024),
+	m_HeightGen(a_HeightGen),
+	m_MaxHalfSize((a_MaxSize + 1) / 2),
+	m_MinHalfSize((a_MinSize + 1) / 2),
+	m_HeightProbability(cChunkDef::Height)
+{
+	// Initialize the height probability distribution:
+	m_HeightProbability.SetDefString(a_HeightDistrib);
+
+	// Normalize the min and max size:
+	if (m_MinHalfSize > m_MaxHalfSize)
+	{
+		std::swap(m_MinHalfSize, m_MaxHalfSize);
+	}
+}
+
+
+
+
+
+
+cDungeonRoomsFinisher::cStructurePtr cDungeonRoomsFinisher::CreateStructure(int a_GridX, int a_GridZ, int a_OriginX, int a_OriginZ)
+{
+	// Select a random room size in each direction:
+	int rnd = m_Noise.IntNoise2DInt(a_OriginX, a_OriginZ) / 7;
+	int HalfSizeX = m_MinHalfSize + (rnd % (m_MaxHalfSize - m_MinHalfSize + 1));
+	rnd = rnd / 32;
+	int HalfSizeZ = m_MinHalfSize + (rnd % (m_MaxHalfSize - m_MinHalfSize + 1));
+	rnd = rnd / 32;
+
+	// Select a random floor height for the room, based on the height generator:
+	int ChunkX, ChunkZ;
+	int RelX = a_OriginX, RelY = 0, RelZ = a_OriginZ;
+	cChunkDef::AbsoluteToRelative(RelX, RelY, RelZ, ChunkX, ChunkZ);
+	cChunkDef::HeightMap HeightMap;
+	m_HeightGen.GenHeightMap(ChunkX, ChunkZ, HeightMap);
+	int Height = cChunkDef::GetHeight(HeightMap, RelX, RelZ);  // Max room height at {a_OriginX, a_OriginZ}
+	Height = Clamp(m_HeightProbability.MapValue(rnd % m_HeightProbability.GetSum()), 10, Height - 5);
+
+	// Create the dungeon room descriptor:
+	return cStructurePtr(new cDungeonRoom(a_GridX, a_GridZ, a_OriginX, a_OriginZ, HalfSizeX, HalfSizeZ, Height, m_Noise));
+}
+
+
+
+
diff --git a/src/Generating/DungeonRoomsFinisher.h b/src/Generating/DungeonRoomsFinisher.h
new file mode 100644
index 000000000..2b52c9de6
--- /dev/null
+++ b/src/Generating/DungeonRoomsFinisher.h
@@ -0,0 +1,52 @@
+
+// DungeonRoomsFinisher.h
+
+// Declares the cDungeonRoomsFinisher class representing the finisher that generates dungeon rooms
+
+
+
+
+
+#pragma once
+
+#include "GridStructGen.h"
+#include "../ProbabDistrib.h"
+
+
+
+
+
+class cDungeonRoomsFinisher :
+	public cGridStructGen
+{
+	typedef cGridStructGen super;
+
+public:
+	/** Creates a new dungeon room finisher.
+	a_HeightGen is the underlying height generator, so that the rooms can always be placed under the terrain.
+	a_MaxSize and a_MinSize are the maximum and minimum sizes of the room's internal (air) area, in blocks across.
+	a_HeightDistrib is the string defining the height distribution for the rooms (cProbabDistrib format). */
+	cDungeonRoomsFinisher(cTerrainHeightGen & a_HeightGen, int a_Seed, int a_GridSize, int a_MaxSize, int a_MinSize, const AString & a_HeightDistrib);
+
+protected:
+
+	/** The height gen that is used for limiting the rooms' Y coords */
+	cTerrainHeightGen & m_HeightGen;
+
+	/** Maximum half-size (from center to wall) of the dungeon room's inner (air) area. Default is 3 (vanilla). */
+	int m_MaxHalfSize;
+
+	/** Minimum half-size (from center to wall) of the dungeon room's inner (air) area. Default is 2 (vanilla). */
+	int m_MinHalfSize;
+
+	/** The height probability distribution to make the spawners more common in layers 10 - 40, less common outside this range. */
+	cProbabDistrib m_HeightProbability;
+
+
+	// cGridStructGen overrides:
+	virtual cStructurePtr CreateStructure(int a_GridX, int a_GridZ, int a_OriginX, int a_OriginZ) override;
+} ;
+
+
+
+
diff --git a/src/Generating/HeiGen.cpp b/src/Generating/HeiGen.cpp
index c3f3b38a9..79d529a6a 100644
--- a/src/Generating/HeiGen.cpp
+++ b/src/Generating/HeiGen.cpp
@@ -239,7 +239,13 @@ bool cHeiGenCache::GetHeightAt(int a_ChunkX, int a_ChunkZ, int a_RelX, int a_Rel
 
 cHeiGenClassic::cHeiGenClassic(int a_Seed) :
 	m_Seed(a_Seed),
-	m_Noise(a_Seed)
+	m_Noise(a_Seed),
+	m_HeightFreq1(1.0f),
+	m_HeightAmp1(1.0f),
+	m_HeightFreq2(0.5f),
+	m_HeightAmp2(0.5f),
+	m_HeightFreq3(0.1f),
+	m_HeightAmp3(0.1f)
 {
 }
 
diff --git a/src/Group.cpp b/src/Group.cpp
deleted file mode 100644
index def585618..000000000
--- a/src/Group.cpp
+++ /dev/null
@@ -1,41 +0,0 @@
-
-#include "Globals.h"  // NOTE: MSVC stupidness requires this to be the same across all modules
-
-#include "Group.h"
-
-
-
-
-
-void cGroup::AddCommand( const AString & a_Command)
-{
-	m_Commands[ a_Command ] = true;
-}
-
-
-
-
-
-void cGroup::AddPermission( const AString & a_Permission)
-{
-	m_Permissions[ a_Permission ] = true;
-}
-
-
-
-
-
-void cGroup::InheritFrom( cGroup* a_Group)
-{
-	m_Inherits.remove( a_Group);
-	m_Inherits.push_back( a_Group);
-}
-
-
-
-
-
-void cGroup::ClearPermission()
-{
-	m_Permissions.clear();
-}
diff --git a/src/Group.h b/src/Group.h
deleted file mode 100644
index 5816f8a06..000000000
--- a/src/Group.h
+++ /dev/null
@@ -1,44 +0,0 @@
-
-#pragma once
-
-
-
-
-
-// tolua_begin
-class cGroup
-{
-public:
-	// tolua_end
-	cGroup() {}
-	~cGroup() {}
-
-	// tolua_begin
-	void SetName( const AString & a_Name) { m_Name = a_Name; }
-	const AString & GetName() const { return m_Name; }
-	void SetColor( const AString & a_Color) { m_Color = a_Color; }
-	void AddCommand( const AString & a_Command);
-	void AddPermission( const AString & a_Permission);
-	void InheritFrom( cGroup* a_Group);
-	// tolua_end
-
-	typedef std::map< AString, bool > PermissionMap;
-	const PermissionMap & GetPermissions() const { return m_Permissions; }
-
-	void ClearPermission(void);
-
-	typedef std::map< AString, bool > CommandMap;
-	const CommandMap & GetCommands() const { return m_Commands; }
-
-	const AString & GetColor() const { return m_Color; }  // tolua_export
-
-	typedef std::list< cGroup* > GroupList;
-	const GroupList & GetInherits() const { return m_Inherits; }
-private:
-	AString m_Name;
-	AString m_Color;
-
-	PermissionMap m_Permissions;
-	CommandMap m_Commands;
-	GroupList m_Inherits;
-};  // tolua_export
diff --git a/src/GroupManager.cpp b/src/GroupManager.cpp
deleted file mode 100644
index 4c3dfc6f0..000000000
--- a/src/GroupManager.cpp
+++ /dev/null
@@ -1,227 +0,0 @@
-#include "Globals.h"  // NOTE: MSVC stupidness requires this to be the same across all modules
-
-#include "GroupManager.h"
-#include "Group.h"
-#include "inifile/iniFile.h"
-#include "ChatColor.h"
-#include "Root.h"
-
-
-
-
-
-typedef std::map< AString, cGroup* > GroupMap;
-
-
-
-
-
-struct cGroupManager::sGroupManagerState
-{
-	GroupMap Groups;
-};
-
-
-
-
-
-cGroupManager::~cGroupManager()
-{
-	for (GroupMap::iterator itr = m_pState->Groups.begin(); itr != m_pState->Groups.end(); ++itr)
-	{
-		delete itr->second;
-		itr->second = NULL;
-	}
-	m_pState->Groups.clear();
-
-	delete m_pState;
-	m_pState = NULL;
-}
-
-
-
-
-
-cGroupManager::cGroupManager()
-	: m_pState( new sGroupManagerState)
-{
-	LOGD("-- Loading Groups --");
-	
-	if (!LoadGroups())
-	{
-		LOGWARNING("ERROR: Groups could not load!");
-	}
-	if (!CheckUsers())
-	{
-		LOGWARNING("ERROR: User file could not be found!");
-	}
-	
-	LOGD("-- Groups Successfully Loaded --");
-}
-
-
-
-
-
-void cGroupManager::GenerateDefaultUsersIni(cIniFile & a_IniFile)
-{
-	LOGWARN("Regenerating users.ini, all users will be reset");
-	a_IniFile.AddHeaderComment(" This file stores the players' groups.");
-	a_IniFile.AddHeaderComment(" The format is:");
-	a_IniFile.AddHeaderComment(" [PlayerName]");
-	a_IniFile.AddHeaderComment(" Groups = GroupName1, GroupName2, ...");
-
-	a_IniFile.WriteFile("users.ini");
-}
-
-
-
-
-
-bool cGroupManager::CheckUsers()
-{
-	cIniFile IniFile;
-	if (!IniFile.ReadFile("users.ini"))
-	{
-		GenerateDefaultUsersIni(IniFile);
-		return true;
-	}
-	
-	int NumKeys = IniFile.GetNumKeys();
-	for (int i = 0; i < NumKeys; i++)
-	{
-		AString Player = IniFile.GetKeyName(i);
-		AString Groups = IniFile.GetValue(Player, "Groups", "");
-		if (Groups.empty())
-		{
-			continue;
-		}
-		AStringVector Split = StringSplitAndTrim(Groups, ",");
-		for (AStringVector::const_iterator itr = Split.begin(), end = Split.end(); itr != end; ++itr)
-		{
-			if (!ExistsGroup(*itr))
-			{
-				LOGWARNING("The group %s for player %s was not found!", Split[i].c_str(), Player.c_str());
-			}
-		}  // for itr - Split[]
-	}  // for i - ini file keys
-	// Always return true for now, just but we can handle writefile fails later.
-	return true;
-}
-
-
-
-
-
-bool cGroupManager::LoadGroups()
-{
-	cIniFile IniFile;
-	if (!IniFile.ReadFile("groups.ini"))
-	{
-		LOGWARNING("Regenerating groups.ini, all groups will be reset");
-		IniFile.AddHeaderComment(" This is the MCServer permissions manager groups file");
-		IniFile.AddHeaderComment(" It stores all defined groups such as Administrators, Players, or Moderators");
-
-		IniFile.SetValue("Owner", "Permissions", "*", true);
-		IniFile.SetValue("Owner", "Color", "2", true);
-
-		IniFile.SetValue("Moderator", "Permissions", "core.time, core.item, core.tpa, core.tpaccept, core.ban, core.unban, core.save-all, core.toggledownfall");
-		IniFile.SetValue("Moderator", "Color", "2", true);
-		IniFile.SetValue("Moderator", "Inherits", "Player", true);
-
-		IniFile.SetValue("Player", "Permissions", "core.portal", true);
-		IniFile.SetValue("Player", "Color", "f", true);
-		IniFile.SetValue("Player", "Inherits", "Default", true);
-
-		IniFile.SetValue("Default", "Permissions", "core.help, core.plugins, core.spawn, core.worlds, core.back, core.motd, core.build, core.locate, core.viewdistance", true);
-		IniFile.SetValue("Default", "Color", "f", true);
-
-		IniFile.WriteFile("groups.ini");
-	}
-
-	int NumKeys = IniFile.GetNumKeys();
-	for (int i = 0; i < NumKeys; i++)
-	{
-		AString KeyName = IniFile.GetKeyName(i);
-		cGroup * Group = GetGroup(KeyName.c_str());
-		
-		Group->ClearPermission();  // Needed in case the groups are reloaded.
-
-		LOGD("Loading group %s", KeyName.c_str());
-
-		Group->SetName(KeyName);
-		AString Color = IniFile.GetValue(KeyName, "Color", "-");
-		if ((Color != "-") && (Color.length() >= 1))
-		{
-			Group->SetColor(AString(cChatColor::Delimiter) + Color[0]);
-		}
-		else
-		{
-			Group->SetColor(cChatColor::White);
-		}
-
-		AString Commands = IniFile.GetValue(KeyName, "Commands", "");
-		if (!Commands.empty())
-		{
-			AStringVector Split = StringSplitAndTrim(Commands, ",");
-			for (size_t i = 0; i < Split.size(); i++)
-			{
-				Group->AddCommand(Split[i]);
-			}
-		}
-
-		AString Permissions = IniFile.GetValue(KeyName, "Permissions", "");
-		if (!Permissions.empty())
-		{
-			AStringVector Split = StringSplitAndTrim(Permissions, ",");
-			for (size_t i = 0; i < Split.size(); i++)
-			{
-				Group->AddPermission(Split[i]);
-			}
-		}
-
-		AString Groups = IniFile.GetValue(KeyName, "Inherits", "");
-		if (!Groups.empty())
-		{
-			AStringVector Split = StringSplitAndTrim(Groups, ",");
-			for (size_t i = 0; i < Split.size(); i++)
-			{
-				Group->InheritFrom(GetGroup(Split[i].c_str()));
-			}
-		}
-	}
-	// Always return true, we can handle writefile fails later.
-	return true;
-}
-
-
-
-
-
-bool cGroupManager::ExistsGroup( const AString & a_Name)
-{
-	GroupMap::iterator itr = m_pState->Groups.find( a_Name);
-	return ( itr != m_pState->Groups.end());
-}
-
-
-
-
-
-cGroup* cGroupManager::GetGroup( const AString & a_Name)
-{
-	GroupMap::iterator itr = m_pState->Groups.find( a_Name);
-	if (itr != m_pState->Groups.end())
-	{
-		return itr->second;
-	}
-
-	cGroup* Group = new cGroup();
-	m_pState->Groups[a_Name] = Group;
-
-	return Group;
-}
-
-
-
-
diff --git a/src/GroupManager.h b/src/GroupManager.h
deleted file mode 100644
index d42b55c4a..000000000
--- a/src/GroupManager.h
+++ /dev/null
@@ -1,36 +0,0 @@
-
-#pragma once
-
-
-
-
-
-class cGroup;
-
-
-
-
-
-class cGroupManager
-{
-public:
-	bool ExistsGroup(const AString & a_Name);
-	cGroup * GetGroup(const AString & a_Name);
-	bool LoadGroups();
-	bool CheckUsers();
-	
-	/** Writes the default header to the specified ini file, and saves it as "users.ini". */
-	static void GenerateDefaultUsersIni(cIniFile & a_IniFile);
-	
-private:
-	friend class cRoot;
-	cGroupManager();
-	~cGroupManager();
-
-	struct sGroupManagerState;
-	sGroupManagerState * m_pState;
-} ;
-
-
-
-
diff --git a/src/HTTPServer/HTTPConnection.cpp b/src/HTTPServer/HTTPConnection.cpp
index b9c762e7c..bf46bb241 100644
--- a/src/HTTPServer/HTTPConnection.cpp
+++ b/src/HTTPServer/HTTPConnection.cpp
@@ -15,7 +15,8 @@
 cHTTPConnection::cHTTPConnection(cHTTPServer & a_HTTPServer) :
 	m_HTTPServer(a_HTTPServer),
 	m_State(wcsRecvHeaders),
-	m_CurrentRequest(NULL)
+	m_CurrentRequest(NULL),
+	m_CurrentRequestBodyRemaining(0)
 {
 	// LOGD("HTTP: New connection at %p", this);
 }
diff --git a/src/HTTPServer/HTTPFormParser.cpp b/src/HTTPServer/HTTPFormParser.cpp
index 9ddfb82f1..c50c6dcf2 100644
--- a/src/HTTPServer/HTTPFormParser.cpp
+++ b/src/HTTPServer/HTTPFormParser.cpp
@@ -15,7 +15,9 @@
 
 cHTTPFormParser::cHTTPFormParser(cHTTPRequest & a_Request, cCallbacks & a_Callbacks) :
 	m_Callbacks(a_Callbacks),
-	m_IsValid(true)
+	m_IsValid(true),
+	m_IsCurrentPartFile(false),
+	m_FileHasBeenAnnounced(false)
 {
 	if (a_Request.GetMethod() == "GET")
 	{
@@ -55,7 +57,9 @@ cHTTPFormParser::cHTTPFormParser(cHTTPRequest & a_Request, cCallbacks & a_Callba
 cHTTPFormParser::cHTTPFormParser(eKind a_Kind, const char * a_Data, size_t a_Size, cCallbacks & a_Callbacks) :
 	m_Callbacks(a_Callbacks),
 	m_Kind(a_Kind),
-	m_IsValid(true)
+	m_IsValid(true),
+	m_IsCurrentPartFile(false),
+	m_FileHasBeenAnnounced(false)
 {
 	Parse(a_Data, a_Size);
 }
diff --git a/src/Inventory.cpp b/src/Inventory.cpp
index 8da3dea5f..832a079bc 100644
--- a/src/Inventory.cpp
+++ b/src/Inventory.cpp
@@ -106,7 +106,7 @@ int cInventory::AddItem(const cItem & a_Item, bool a_AllowNewStacks, bool a_tryT
 	// When the item is a armor, try to set it directly to the armor slot.
 	if (ItemCategory::IsArmor(a_Item.m_ItemType))
 	{
-		for (size_t i = 0; i < (size_t)m_ArmorSlots.GetNumSlots(); i++)
+		for (int i = 0; i < m_ArmorSlots.GetNumSlots(); i++)
 		{
 			if (m_ArmorSlots.GetSlot(i).IsEmpty() && cSlotAreaArmor::CanPlaceArmorInSlot(i, a_Item))
 			{
diff --git a/src/LightingThread.cpp b/src/LightingThread.cpp
index 3fbbee6b5..652b03e46 100644
--- a/src/LightingThread.cpp
+++ b/src/LightingThread.cpp
@@ -73,6 +73,8 @@ public:
 	HEIGHTTYPE * m_HeightMap;  // 3x3 chunks of height map,  organized as a single XZY blob of data (instead of 3x3 XZY blobs)
 	
 	cReader(BLOCKTYPE * a_BlockTypes, HEIGHTTYPE * a_HeightMap) :
+		m_ReadingChunkX(0),
+		m_ReadingChunkZ(0),
 		m_MaxHeight(0),
 		m_BlockTypes(a_BlockTypes),
 		m_HeightMap(a_HeightMap)
@@ -89,7 +91,9 @@ public:
 
 cLightingThread::cLightingThread(void) :
 	super("cLightingThread"),
-	m_World(NULL)
+	m_World(NULL),
+	m_MaxHeight(0),
+	m_NumSeeds(0)
 {
 }
 
diff --git a/src/LinearUpscale.h b/src/LinearUpscale.h
index 0b04408cf..a49f4bdf9 100644
--- a/src/LinearUpscale.h
+++ b/src/LinearUpscale.h
@@ -31,7 +31,7 @@ Linearly interpolates values in the array between the equidistant anchor points
 Works in-place (input is already present at the correct output coords)
 Uses templates to make it possible for the compiler to further optimizer the loops
 */
-template<
+template <
 	int SizeX, int SizeY,  // Dimensions of the array
 	int AnchorStepX, int AnchorStepY,
 	typename TYPE
@@ -83,7 +83,7 @@ void LinearUpscale2DArrayInPlace(TYPE * a_Array)
 Linearly interpolates values in the array between the equidistant anchor points (upscales).
 Works on two arrays, input is packed and output is to be completely constructed.
 */
-template<typename TYPE> void LinearUpscale2DArray(
+template <typename TYPE> void LinearUpscale2DArray(
 	TYPE * a_Src,                    ///< Source array of size a_SrcSizeX x a_SrcSizeY
 	int a_SrcSizeX, int a_SrcSizeY,  ///< Dimensions of the src array
 	TYPE * a_Dst,                    ///< Dest array, of size (a_SrcSizeX * a_UpscaleX + 1) x (a_SrcSizeY * a_UpscaleY + 1)
@@ -153,7 +153,7 @@ template<typename TYPE> void LinearUpscale2DArray(
 Linearly interpolates values in the array between the equidistant anchor points (upscales).
 Works on two arrays, input is packed and output is to be completely constructed.
 */
-template<typename TYPE> void LinearUpscale3DArray(
+template <typename TYPE> void LinearUpscale3DArray(
 	TYPE * a_Src,                                    ///< Source array of size a_SrcSizeX x a_SrcSizeY x a_SrcSizeZ
 	int a_SrcSizeX, int a_SrcSizeY, int a_SrcSizeZ,  ///< Dimensions of the src array
 	TYPE * a_Dst,                                    ///< Dest array, of size (a_SrcSizeX * a_UpscaleX + 1) x (a_SrcSizeY * a_UpscaleY + 1) x (a_SrcSizeZ * a_UpscaleZ + 1)
diff --git a/src/LoggerListeners.cpp b/src/LoggerListeners.cpp
index 836536cbd..77e2aaf67 100644
--- a/src/LoggerListeners.cpp
+++ b/src/LoggerListeners.cpp
@@ -65,7 +65,7 @@
 			{
 				case cLogger::llRegular:
 				{
-					// Gray on black 
+					// Gray on black
 					Attrib = FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED;
 					break;
 				}
@@ -93,7 +93,7 @@
 		
 		
 		virtual void SetDefaultLogColour() override
-		{ 
+		{
 			SetConsoleTextAttribute(m_Console, m_DefaultConsoleAttrib);
 		}
 		
@@ -119,13 +119,13 @@
 			{
 				case cLogger::llRegular:
 				{
-					// Whatever the console default is 
+					// Whatever the console default is
 					printf("\x1b[0m");
-					break;  
+					break;
 				}
 				case cLogger::llInfo:
 				{
-					// Yellow on black 
+					// Yellow on black
 					printf("\x1b[33;1m");
 					break;
 				}
@@ -133,7 +133,7 @@
 				{
 					// Red on black
 					printf("\x1b[31;1m");
-					break;  
+					break;
 				}
 				case cLogger::llError:
 				{
@@ -147,7 +147,7 @@
 		
 		virtual void SetDefaultLogColour() override
 		{
-			// Whatever the console default is 
+			// Whatever the console default is
 			printf("\x1b[0m");
 		}
 	};
diff --git a/src/Mobs/Monster.cpp b/src/Mobs/Monster.cpp
index fe8a7346f..f7ee0b0c0 100644
--- a/src/Mobs/Monster.cpp
+++ b/src/Mobs/Monster.cpp
@@ -1024,7 +1024,7 @@ void cMonster::HandleDaylightBurning(cChunk & a_Chunk)
 		(a_Chunk.GetBlock(RelX, RelY, RelZ) != E_BLOCK_SOULSAND) &&  // Not on soulsand
 		(GetWorld()->GetTimeOfDay() < (12000 + 1000)) &&             // It is nighttime
 		!IsOnFire() &&                                               // Not already burning
-		GetWorld()->IsWeatherWetAt(POSX_TOINT, POSZ_TOINT)           // Not raining
+		GetWorld()->IsWeatherSunnyAt(POSX_TOINT, POSZ_TOINT)         // Not raining
 	)
 	{
 		// Burn for 100 ticks, then decide again
diff --git a/src/Noise.cpp b/src/Noise.cpp
index 507d05ea5..71e801f30 100644
--- a/src/Noise.cpp
+++ b/src/Noise.cpp
@@ -146,6 +146,8 @@ cCubicCell2D::cCubicCell2D(
 ) :
 	m_Noise(a_Noise),
 	m_WorkRnds(&m_Workspace1),
+	m_CurFloorX(0),
+	m_CurFloorY(0),
 	m_Array(a_Array),
 	m_SizeX(a_SizeX),
 	m_SizeY(a_SizeY),
@@ -300,6 +302,9 @@ cCubicCell3D::cCubicCell3D(
 ) :
 	m_Noise(a_Noise),
 	m_WorkRnds(&m_Workspace1),
+	m_CurFloorX(0),
+	m_CurFloorY(0),
+	m_CurFloorZ(0),
 	m_Array(a_Array),
 	m_SizeX(a_SizeX),
 	m_SizeY(a_SizeY),
diff --git a/src/OSSupport/Queue.h b/src/OSSupport/Queue.h
index bf4d7f004..8d096fe29 100644
--- a/src/OSSupport/Queue.h
+++ b/src/OSSupport/Queue.h
@@ -20,7 +20,7 @@ cQueueFuncs and is used as the default behavior.
 */
 
 /// This empty struct allows for the callback functions to be inlined
-template<class T>
+template <class T>
 struct cQueueFuncs
 {
 public:
diff --git a/src/PolarSSL++/SslContext.cpp b/src/PolarSSL++/SslContext.cpp
index c3074f197..482470c3a 100644
--- a/src/PolarSSL++/SslContext.cpp
+++ b/src/PolarSSL++/SslContext.cpp
@@ -16,6 +16,7 @@ cSslContext::cSslContext(void) :
 	m_IsValid(false),
 	m_HasHandshaken(false)
 {
+	memset(&m_Ssl, 0, sizeof(m_Ssl));
 }
 
 
diff --git a/src/Protocol/MojangAPI.cpp b/src/Protocol/MojangAPI.cpp
index 823ff5469..4e5c41a8a 100644
--- a/src/Protocol/MojangAPI.cpp
+++ b/src/Protocol/MojangAPI.cpp
@@ -10,6 +10,7 @@
 #include "inifile/iniFile.h"
 #include "json/json.h"
 #include "PolarSSL++/BlockingSslClientSocket.h"
+#include "../RankManager.h"
 
 
 
@@ -300,6 +301,7 @@ void cMojangAPI::AddPlayerNameToUUIDMapping(const AString & a_PlayerName, const
 		cCSLock Lock(m_CSUUIDToName);
 		m_UUIDToName[UUID] = sProfile(a_PlayerName, UUID, "", "", Now);
 	}
+	NotifyNameUUID(a_PlayerName, a_UUID);
 }
 
 
@@ -322,6 +324,7 @@ void cMojangAPI::AddPlayerProfile(const AString & a_PlayerName, const AString &
 		cCSLock Lock(m_CSUUIDToProfile);
 		m_UUIDToProfile[UUID] = sProfile(a_PlayerName, UUID, a_Properties, Now);
 	}
+	NotifyNameUUID(a_PlayerName, a_UUID);
 }
 
 
@@ -655,11 +658,11 @@ void cMojangAPI::CacheNamesToUUIDs(const AStringVector & a_PlayerNames)
 		}
 	
 		// Store the returned results into cache:
-		size_t JsonCount = root.size();
+		Json::Value::UInt JsonCount = root.size();
 		Int64 Now = time(NULL);
 		{
 			cCSLock Lock(m_CSNameToUUID);
-			for (size_t idx = 0; idx < JsonCount; ++idx)
+			for (Json::Value::UInt idx = 0; idx < JsonCount; ++idx)
 			{
 				Json::Value & Val = root[idx];
 				AString JsonName = Val.get("name", "").asString();
@@ -669,13 +672,14 @@ void cMojangAPI::CacheNamesToUUIDs(const AStringVector & a_PlayerNames)
 					continue;
 				}
 				m_NameToUUID[StrToLower(JsonName)] = sProfile(JsonName, JsonUUID, "", "", Now);
+				NotifyNameUUID(JsonName, JsonUUID);
 			}  // for idx - root[]
 		}  // cCSLock (m_CSNameToUUID)
 		
 		// Also cache the UUIDToName:
 		{
 			cCSLock Lock(m_CSUUIDToName);
-			for (size_t idx = 0; idx < JsonCount; ++idx)
+			for (Json::Value::UInt idx = 0; idx < JsonCount; ++idx)
 			{
 				Json::Value & Val = root[idx];
 				AString JsonName = Val.get("name", "").asString();
@@ -792,6 +796,21 @@ void cMojangAPI::CacheUUIDToProfile(const AString & a_UUID)
 		cCSLock Lock(m_CSNameToUUID);
 		m_NameToUUID[StrToLower(PlayerName)] = sProfile(PlayerName, a_UUID, Properties, Now);
 	}
+	NotifyNameUUID(PlayerName, a_UUID);
+}
+
+
+
+
+
+void cMojangAPI::NotifyNameUUID(const AString & a_PlayerName, const AString & a_UUID)
+{
+	// Notify the rank manager:
+	cCSLock Lock(m_CSRankMgr);
+	if (m_RankMgr != NULL)
+	{
+		m_RankMgr->NotifyNameUUID(a_PlayerName, a_UUID);
+	}
 }
 
 
diff --git a/src/Protocol/MojangAPI.h b/src/Protocol/MojangAPI.h
index 6ed37625e..252d32543 100644
--- a/src/Protocol/MojangAPI.h
+++ b/src/Protocol/MojangAPI.h
@@ -11,6 +11,13 @@
 
 #include <time.h>
 
+
+
+
+
+// fwd: ../RankManager.h"
+class cRankManager;
+
 namespace Json
 {
 	class Value;
@@ -38,8 +45,6 @@ public:
 	Returns true if all was successful, false on failure. */
 	static bool SecureRequest(const AString & a_ServerName, const AString & a_Request, AString & a_Response);
 	
-	// tolua_begin
-	
 	/** Normalizes the given UUID to its short form (32 bytes, no dashes, lowercase).
 	Logs a warning and returns empty string if not a UUID.
 	Note: only checks the string's length, not the actual content. */
@@ -50,8 +55,6 @@ public:
 	Note: only checks the string's length, not the actual content. */
 	static AString MakeUUIDDashed(const AString & a_UUID);
 
-	// tolua_end
-	
 	/** Converts a player name into a UUID.
 	The UUID will be empty on error.
 	If a_UseOnlyCached is true, the function only consults the cached values.
@@ -85,7 +88,10 @@ public:
 	/** Called by the Authenticator to add a profile that it has received from authenticating a user. Adds
 	the profile to the respective mapping caches and updtes their datetime stamp to now. */
 	void AddPlayerProfile(const AString & a_PlayerName, const AString & a_UUID, const Json::Value & a_Properties);
-	
+
+	/** Sets the m_RankMgr that is used for name-uuid notifications. Accepts NULL to remove the binding. */
+	void SetRankManager(cRankManager * a_RankManager) { m_RankMgr = a_RankManager; }
+
 protected:
 	/** Holds data for a single player profile. */
 	struct sProfile
@@ -165,6 +171,12 @@ protected:
 	
 	/** Protects m_UUIDToProfile against simultaneous multi-threaded access. */
 	cCriticalSection m_CSUUIDToProfile;
+
+	/** The rank manager that is notified of the name-uuid pairings. May be NULL. Protected by m_CSRankMgr. */
+	cRankManager * m_RankMgr;
+
+	/** Protects m_RankMgr agains simultaneous multi-threaded access. */
+	cCriticalSection m_CSRankMgr;
 	
 	
 	/** Loads the caches from a disk storage. */
@@ -182,6 +194,10 @@ protected:
 	UUIDs that are not valid will not be added into the cache.
 	ASSUMEs that a_UUID is a lowercased short UUID. */
 	void CacheUUIDToProfile(const AString & a_UUID);
+
+	/** Called for each name-uuid pairing that is discovered.
+	If assigned, notifies the m_RankManager of the event. */
+	void NotifyNameUUID(const AString & a_PlayerName, const AString & a_PlayerUUID);
 } ;  // tolua_export
 
 
diff --git a/src/Protocol/Protocol17x.cpp b/src/Protocol/Protocol17x.cpp
index a8df948cd..1091b877f 100644
--- a/src/Protocol/Protocol17x.cpp
+++ b/src/Protocol/Protocol17x.cpp
@@ -1824,7 +1824,11 @@ void cProtocol172::HandlePacketLoginEncryptionResponse(cByteBuffer & a_ByteBuffe
 void cProtocol172::HandlePacketLoginStart(cByteBuffer & a_ByteBuffer)
 {
 	AString Username;
-	a_ByteBuffer.ReadVarUTF8String(Username);
+	if (!a_ByteBuffer.ReadVarUTF8String(Username))
+	{
+		m_Client->Kick("Bad username");
+		return;
+	}
 	
 	if (!m_Client->HandleHandshake(Username))
 	{
diff --git a/src/RankManager.cpp b/src/RankManager.cpp
new file mode 100644
index 000000000..dc6eec9e4
--- /dev/null
+++ b/src/RankManager.cpp
@@ -0,0 +1,1837 @@
+
+// RankManager.cpp
+
+// Implements the cRankManager class that represents the rank manager responsible for assigning permissions and message visuals to players
+
+#include "Globals.h"
+#include "RankManager.h"
+#include "inifile/iniFile.h"
+#include "Protocol/MojangAPI.h"
+#include "ClientHandle.h"
+
+
+
+
+
+////////////////////////////////////////////////////////////////////////////////
+// cRankManagerIniMigrator:
+
+/** Migrates from groups.ini and users.ini into the rankmanager DB */
+class cRankManagerIniMigrator
+{
+public:
+	cRankManagerIniMigrator(cRankManager & a_RankManager, cMojangAPI & a_MojangAPI) :
+		m_RankManager(a_RankManager),
+		m_MojangAPI(a_MojangAPI)
+	{
+	}
+	
+	
+	
+	/** Performs the complete migration from INI files to DB. */
+	bool Migrate(void)
+	{
+		cRankManager::cMassChangeLock Lock(m_RankManager);
+		
+		LOGD("Reading groups...");
+		if (!ReadGroups())
+		{
+			return false;
+		}
+		LOGD("Cleaning groups inheritance...");
+		CleanGroupInheritance();
+		LOGD("Creating groups...");
+		CreateGroups();
+
+		LOGD("Reading users...");
+		if (!ReadUsers())
+		{
+			return false;
+		}
+		LOGD("Cleaning user groups...");
+		CleanUserGroups();
+		LOGD("Resolving user UUIDs...");
+		ResolveUserUUIDs();
+		
+		LOGD("Setting ranks...");
+		SetRanks();
+
+		LOGD("Creating defaults...");
+		CreateDefaults();
+		
+		return true;
+	}
+	
+protected:
+
+	/** Container for a group read from an INI file. */
+	struct sGroup
+	{
+		AString m_Name;
+		AString m_Color;
+		AStringVector m_Inherits;
+		AStringVector m_Permissions;
+		
+		sGroup(void) {}
+		
+		sGroup(const AString & a_Name, const AString & a_Color, const AStringVector & a_Inherits, const AStringVector & a_Permissions):
+			m_Name(a_Name),
+			m_Color(a_Color),
+			m_Inherits(a_Inherits),
+			m_Permissions(a_Permissions)
+		{
+		}
+	};
+	typedef std::map<AString, sGroup> sGroupMap;
+	
+	
+	/** Container for a single user read from an INI file. */
+	struct sUser
+	{
+		AString m_Name;
+		AStringVector m_Groups;
+		
+		/** Assigned by ResolveUserUUIDs(), contains the online (Mojang) UUID of the player. */
+		AString m_UUID;
+
+		/** Assigned by ResolveUserUUIDs(), contains the offline (generated) UUID of the player. */
+		AString m_OfflineUUID;
+		
+		
+		sUser(void) {}
+		
+		sUser(const AString & a_Name, const AStringVector & a_Groups):
+			m_Name(a_Name),
+			m_Groups(a_Groups)
+		{
+		}
+	};
+	typedef std::map<AString, sUser> sUserMap;
+	
+	typedef std::map<AString, AString> cStringMap;
+	
+	
+	/** The parent Rank manager where we will create the groups, ranks and players */
+	cRankManager & m_RankManager;
+	
+	/** The player name to UUID resolver */
+	cMojangAPI & m_MojangAPI;
+	
+	/** List of all groups read from the ini file */
+	sGroupMap m_Groups;
+	
+	/** List of all players read from the ini file. */
+	sUserMap  m_Users;
+	
+	/** Maps lists of groups to rank names.
+	Each group list is either a simple "<Group>" if there's only one group,
+	or "<PrimaryGroup>, <FirstSecondaryGroup>, <SecondSecondaryGroup>...", where the secondary groups are
+	lowercased and  alpha-sorted. This makes the group lists comparable for equivalence, simply by comparing
+	their string names.
+	The ranks are named "<Group>" for single-group players, and "AutoMigratedRank_N" for the composite ranks,
+	where N is a unique number. */
+	cStringMap m_GroupsToRanks;
+
+	
+	
+	/** Reads the groups from the "groups.ini" file into m_Groups */
+	bool ReadGroups(void)
+	{
+		// Read the file:
+		cIniFile Groups;
+		if (!Groups.ReadFile("groups.ini"))
+		{
+			return false;
+		}
+		
+		// Read all the groups into a map:
+		int NumGroups = Groups.GetNumKeys();
+		for (int i = 0; i < NumGroups; i++)
+		{
+			AString GroupName = Groups.GetKeyName(i);
+			AString lcGroupName = StrToLower(GroupName);
+			if (m_Groups.find(lcGroupName) != m_Groups.end())
+			{
+				LOGINFO("groups.ini contains a duplicate definition of group %s, ignoring the latter.", GroupName.c_str());
+				continue;
+			}
+			m_Groups[lcGroupName] = sGroup(
+				GroupName,
+				Groups.GetValue(GroupName, "Color", ""),
+				StringSplitAndTrim(Groups.GetValue(GroupName, "Inherits"), ","),
+				StringSplitAndTrim(Groups.GetValue(GroupName, "Permissions"), ",")
+			);
+		}  // for i - Groups' keys
+		return true;
+	}
+	
+
+	
+	/** Removes non-existent groups from all the groups' inheritance */
+	void CleanGroupInheritance(void)
+	{
+		for (sGroupMap::iterator itrG = m_Groups.begin(), endG = m_Groups.end(); itrG != endG; ++itrG)
+		{
+			AStringVector & Inherits = itrG->second.m_Inherits;
+			for (AStringVector::iterator itrI = Inherits.begin(); itrI != Inherits.end();)
+			{
+				AString lcInherits = StrToLower(*itrI);
+				if (m_Groups.find(lcInherits) != m_Groups.end())
+				{
+					// Inherited group exists, continue checking the next one
+					++itrI;
+					continue;
+				}
+				// Inherited group doesn't exist, remove it from the list:
+				LOGWARNING("RankMigrator: Group \"%s\" inherits from a non-existent group \"%s\", this inheritance will be ignored.",
+					itrG->second.m_Name.c_str(), itrI->c_str()
+				);
+				AStringVector::iterator itrI2 = itrI;
+				++itrI2;
+				Inherits.erase(itrI);
+				itrI = itrI2;
+			}  // for itrI - Inherits[]
+		}  // for itrG - m_Groups[]
+	}
+
+	
+	
+	/** Reads the users from the "users.ini" file into m_Users */
+	bool ReadUsers(void)
+	{
+		// Read the file:
+		cIniFile Users;
+		if (!Users.ReadFile("users.ini"))
+		{
+			return false;
+		}
+		
+		// Read all the users into a map:
+		int NumUsers = Users.GetNumKeys();
+		for (int i = 0; i < NumUsers; i++)
+		{
+			AString UserName = Users.GetKeyName(i);
+			AString lcUserName = StrToLower(UserName);
+			if (m_Users.find(lcUserName) != m_Users.end())
+			{
+				LOGINFO("users.ini contains a duplicate definition of user %s, ignoring the latter.", UserName.c_str());
+				continue;
+			}
+			m_Users[lcUserName] = sUser(
+				UserName,
+				StringSplitAndTrim(Users.GetValue(UserName, "Groups", ""), ",")
+			);
+		}  // for i - Users' keys
+		return true;
+	}
+	
+	
+	
+	/** Removes non-existent groups from each user's definition. */
+	void CleanUserGroups(void)
+	{
+		for (sUserMap::iterator itrU = m_Users.begin(), endU = m_Users.end(); itrU != endU; ++itrU)
+		{
+			AStringVector & Groups = itrU->second.m_Groups;
+			for (AStringVector::iterator itrG = Groups.begin(); itrG != Groups.end();)
+			{
+				AString lcGroup = StrToLower(*itrG);
+				if (m_Groups.find(lcGroup) != m_Groups.end())
+				{
+					// Assigned group exists, continue checking the next one
+					++itrG;
+					continue;
+				}
+				// Assigned  group doesn't exist, remove it from the list:
+				LOGWARNING("RankMigrator: User \"%s\" is assigned a non-existent group \"%s\", this assignment will be ignored.",
+					itrU->second.m_Name.c_str(), itrG->c_str()
+				);
+				AStringVector::iterator itrG2 = itrG;
+				++itrG2;
+				Groups.erase(itrG);
+				itrG = itrG2;
+			}  // for itrG - Groups[]
+		}  // for itrU - m_Users[]
+	}
+	
+	
+	
+	/** Creates groups based on m_Groups.
+	Ignores group inheritance. */
+	void CreateGroups(void)
+	{
+		// Create each group, with its permissions:
+		for (sGroupMap::const_iterator itr = m_Groups.begin(), end = m_Groups.end(); itr != end; ++itr)
+		{
+			m_RankManager.AddGroup(itr->second.m_Name);
+			m_RankManager.AddPermissionsToGroup(itr->second.m_Permissions, itr->second.m_Name);
+		}  // for itr - m_Groups[]
+	}
+	
+	
+	/** Resolves the UUID of each user in m_Users.
+	If a user doesn't resolve, they are removed and logged in the console. */
+	void ResolveUserUUIDs(void)
+	{
+		// Resolve all PlayerNames at once (the API doesn't like single-name queries):
+		AStringVector PlayerNames;
+		for (sUserMap::const_iterator itr = m_Users.begin(), end = m_Users.end(); itr != end; ++itr)
+		{
+			PlayerNames.push_back(itr->second.m_Name);
+		}
+		m_MojangAPI.GetUUIDsFromPlayerNames(PlayerNames);
+		
+		// Assign the UUIDs back to players, remove those not resolved:
+		for (sUserMap::iterator itr = m_Users.begin(); itr != m_Users.end(); ++itr)
+		{
+			AString UUID = m_MojangAPI.GetUUIDFromPlayerName(itr->second.m_Name);
+			if (UUID.empty())
+			{
+				LOGWARNING("RankMigrator: Cannot resolve player %s to online UUID, player will be left unranked in online mode", itr->second.m_Name.c_str());
+			}
+			itr->second.m_UUID = UUID;
+			itr->second.m_OfflineUUID = cClientHandle::GenerateOfflineUUID(itr->second.m_Name);
+		}
+	}
+	
+	
+	
+	/** Adds the specified groups to the specified ranks. Recurses on the groups' inheritance. */
+	void AddGroupsToRank(const AStringVector & a_Groups, const AString & a_RankName)
+	{
+		for (AStringVector::const_iterator itr = a_Groups.begin(), end = a_Groups.end(); itr != end; ++itr)
+		{
+			// Normalize the group name:
+			sGroup & Group = m_Groups[StrToLower(*itr)];
+			
+			// Avoid loops, check if the group is already added:
+			if (m_RankManager.IsGroupInRank(Group.m_Name, a_RankName))
+			{
+				continue;
+			}
+			
+			// Add the group, and all the groups it inherits from recursively:
+			m_RankManager.AddGroupToRank(Group.m_Name, a_RankName);
+			AddGroupsToRank(Group.m_Inherits, a_RankName);
+		}  // for itr - a_Groups[]
+	}
+	
+	
+	
+	/** Creates a rank for each player, based on the master groups they are assigned. */
+	void SetRanks(void)
+	{
+		for (sUserMap::const_iterator itr = m_Users.begin(), end = m_Users.end(); itr != end; ++itr)
+		{
+			// Ignore users with no groups:
+			const AStringVector & Groups = itr->second.m_Groups;
+			if (Groups.empty())
+			{
+				LOGWARNING("RankMigrator: Player %s has no groups assigned to them, skipping the player.", itr->second.m_Name.c_str());
+				continue;
+			}
+			
+			// Compose the rank name out of group names:
+			AString RankName;
+			for (AStringVector::const_iterator itrG = Groups.begin(), endG = Groups.end(); itrG != endG; ++itrG)
+			{
+				AString GroupName = m_Groups[StrToLower(*itrG)].m_Name;  // Normalize group name
+				if (!RankName.empty())
+				{
+					RankName.push_back(',');
+				}
+				RankName.append(GroupName);
+			}  // for itrG - Groups[]
+			
+			// Create the rank, with al its groups:
+			if (!m_RankManager.RankExists(RankName))
+			{
+				m_RankManager.AddRank(RankName, "", "", m_Groups[StrToLower(Groups[0])].m_Color);
+				AddGroupsToRank(Groups, RankName);
+			}
+			
+			// Set the rank to the user, using both the online and offline UUIDs:
+			m_RankManager.SetPlayerRank(itr->second.m_UUID,        itr->second.m_Name, RankName);
+			m_RankManager.SetPlayerRank(itr->second.m_OfflineUUID, itr->second.m_Name, RankName);
+		}  // for itr - m_Users[]
+	}
+
+
+
+	/** Creates the Default rank that contains the Default group, if it exists.
+	Sets the RankManager's default rank. */
+	void CreateDefaults(void)
+	{
+		if (!m_RankManager.RankExists("Default"))
+		{
+			m_RankManager.AddRank("Default", "", "", "");
+			if (!m_RankManager.IsGroupInRank("Default", "Default"))
+			{
+				m_RankManager.AddGroupToRank("Default", "Default");
+			}
+		}
+		m_RankManager.SetDefaultRank("Default");
+	}
+};
+
+
+
+
+
+////////////////////////////////////////////////////////////////////////////////
+// cRankManager:
+
+cRankManager::cRankManager(void) :
+	m_DB("Ranks.sqlite", SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE),
+	m_IsInitialized(false),
+	m_MojangAPI(NULL)
+{
+}
+
+
+
+
+
+cRankManager::~cRankManager()
+{
+	if (m_MojangAPI != NULL)
+	{
+		m_MojangAPI->SetRankManager(NULL);
+	}
+}
+
+
+
+
+
+void cRankManager::Initialize(cMojangAPI & a_MojangAPI)
+{
+	ASSERT(!m_IsInitialized);  // Calling Initialize for the second time?
+	
+	// Create the DB tables, if they don't exist:
+	m_DB.exec("CREATE TABLE IF NOT EXISTS Rank (RankID INTEGER PRIMARY KEY, Name, MsgPrefix, MsgSuffix, MsgNameColorCode)");
+	m_DB.exec("CREATE TABLE IF NOT EXISTS PlayerRank (PlayerUUID, PlayerName, RankID INTEGER)");
+	m_DB.exec("CREATE TABLE IF NOT EXISTS PermGroup (PermGroupID INTEGER PRIMARY KEY, Name)");
+	m_DB.exec("CREATE TABLE IF NOT EXISTS RankPermGroup (RankID INTEGER, PermGroupID INTEGER)");
+	m_DB.exec("CREATE TABLE IF NOT EXISTS PermissionItem (PermGroupID INTEGER, Permission)");
+	m_DB.exec("CREATE TABLE IF NOT EXISTS DefaultRank (RankID INTEGER)");
+	
+	m_IsInitialized = true;
+	
+	a_MojangAPI.SetRankManager(this);
+
+	// Check if tables empty, migrate from ini files then
+	if (AreDBTablesEmpty())
+	{
+		LOGINFO("There are no ranks, migrating old-style INI files to new DB ranks...");
+		LOGINFO("(This might take a while)");
+		cRankManagerIniMigrator Migrator(*this, a_MojangAPI);
+		if (Migrator.Migrate())
+		{
+			LOGINFO("Ranks migrated.");
+			// The default rank has been set by the migrator
+			return;
+		}
+
+		// Migration failed. Add some defaults
+		LOGINFO("Rank migration failed, creating default ranks...");
+		CreateDefaults();
+		LOGINFO("Default ranks created.");
+	}
+	
+	// Load the default rank:
+	try
+	{
+		SQLite::Statement stmt(m_DB,
+			"SELECT Rank.Name FROM Rank "
+			"LEFT JOIN DefaultRank ON Rank.RankID = DefaultRank.RankID"
+		);
+		if (stmt.executeStep())
+		{
+			m_DefaultRank = stmt.getColumn(0).getText();
+		}
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Cannot load default rank: %s", __FUNCTION__, ex.what());
+		return;
+	}
+
+	// If the default rank cannot be loaded, use the first rank:
+	if (m_DefaultRank.empty())
+	{
+		SetDefaultRank(GetAllRanks()[0]);
+	}
+}
+
+
+
+
+
+AString cRankManager::GetPlayerRankName(const AString & a_PlayerUUID)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	try
+	{
+		SQLite::Statement stmt(m_DB, "SELECT Rank.Name FROM Rank LEFT JOIN PlayerRank ON Rank.RankID = PlayerRank.RankID WHERE PlayerRank.PlayerUUID = ?");
+		stmt.bind(1, a_PlayerUUID);
+		stmt.executeStep();
+		if (stmt.isDone())
+		{
+			// No data returned from the DB
+			return AString();
+		}
+		return stmt.getColumn(0).getText();
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Cannot get player rank name: %s", __FUNCTION__, ex.what());
+	}
+	return AString();
+}
+
+
+
+
+
+AStringVector cRankManager::GetPlayerGroups(const AString & a_PlayerUUID)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	AStringVector res;
+	try
+	{
+		// Prepare the DB statement:
+		SQLite::Statement stmt(m_DB,
+			"SELECT PermGroup.Name FROM PermGroup "
+				"LEFT JOIN RankPermGroup ON PermGroup.PermGroupID = RankPermGroup.PermGroupID "
+				"LEFT JOIN PlayerRank ON PlayerRank.RankID = RankPermGroup.RankID "
+			"WHERE PlayerRank.PlayerUUID = ?"
+		);
+		stmt.bind(1, a_PlayerUUID);
+		
+		// Execute and get results:
+		while (stmt.executeStep())
+		{
+			res.push_back(stmt.getColumn(0).getText());
+		}
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Cannot get player groups: %s", __FUNCTION__, ex.what());
+	}
+	return res;
+}
+
+
+
+
+
+AStringVector cRankManager::GetPlayerPermissions(const AString & a_PlayerUUID)
+{
+	AString Rank = GetPlayerRankName(a_PlayerUUID);
+	if (Rank.empty())
+	{
+		Rank = m_DefaultRank;
+	}
+	return GetRankPermissions(Rank);
+}
+
+
+
+
+
+AStringVector cRankManager::GetRankGroups(const AString & a_RankName)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	AStringVector res;
+	try
+	{
+		SQLite::Statement stmt(m_DB,
+			"SELECT PermGroup.Name FROM PermGroup "
+				"LEFT JOIN RankPermGroup ON RankPermGroup.PermGroupID = PermGroup.PermGroupID "
+				"LEFT JOIN Rank ON Rank.RankID = RankPermGroup.RankID "
+			"WHERE Rank.Name = ?"
+		);
+		stmt.bind(1, a_RankName);
+		while (stmt.executeStep())
+		{
+			res.push_back(stmt.getColumn(0).getText());
+		}
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to get rank groups from DB: %s", __FUNCTION__, ex.what());
+	}
+	return res;
+}
+
+
+
+
+
+AStringVector cRankManager::GetGroupPermissions(const AString & a_GroupName)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	AStringVector res;
+	try
+	{
+		SQLite::Statement stmt(m_DB,
+			"SELECT PermissionItem.Permission FROM PermissionItem "
+				"LEFT JOIN PermGroup ON PermGroup.PermGroupID = PermissionItem.PermGroupID "
+			"WHERE PermGroup.Name = ?"
+		);
+		stmt.bind(1, a_GroupName);
+		while (stmt.executeStep())
+		{
+			res.push_back(stmt.getColumn(0).getText());
+		}
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to get group permissions from DB: %s", __FUNCTION__, ex.what());
+	}
+	return res;
+}
+
+
+
+
+
+AStringVector cRankManager::GetRankPermissions(const AString & a_RankName)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	AStringVector res;
+	try
+	{
+		SQLite::Statement stmt(m_DB,
+			"SELECT PermissionItem.Permission FROM PermissionItem "
+				"LEFT JOIN RankPermGroup ON RankPermGroup.PermGroupID = PermissionItem.PermGroupID "
+				"LEFT JOIN Rank ON Rank.RankID = RankPermGroup.RankID "
+			"WHERE Rank.Name = ?"
+		);
+		stmt.bind(1, a_RankName);
+		while (stmt.executeStep())
+		{
+			res.push_back(stmt.getColumn(0).getText());
+		}
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to get rank permissions from DB: %s", __FUNCTION__, ex.what());
+	}
+	return res;
+}
+
+
+
+
+
+AStringVector cRankManager::GetAllRanks(void)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	AStringVector res;
+	try
+	{
+		SQLite::Statement stmt(m_DB, "SELECT Name FROM Rank");
+		while (stmt.executeStep())
+		{
+			res.push_back(stmt.getColumn(0).getText());
+		}
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to get ranks from DB: %s", __FUNCTION__, ex.what());
+	}
+	return res;
+}
+
+
+
+
+
+AStringVector cRankManager::GetAllGroups(void)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	AStringVector res;
+	try
+	{
+		SQLite::Statement stmt(m_DB, "SELECT Name FROM PermGroup");
+		while (stmt.executeStep())
+		{
+			res.push_back(stmt.getColumn(0).getText());
+		}
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to get groups from DB: %s", __FUNCTION__, ex.what());
+	}
+	return res;
+}
+
+
+
+
+
+AStringVector cRankManager::GetAllPermissions(void)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	AStringVector res;
+	try
+	{
+		SQLite::Statement stmt(m_DB, "SELECT DISTINCT(Permission) FROM PermissionItem");
+		while (stmt.executeStep())
+		{
+			res.push_back(stmt.getColumn(0).getText());
+		}
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to get permissions from DB: %s", __FUNCTION__, ex.what());
+	}
+	return res;
+}
+
+
+
+
+
+bool cRankManager::GetPlayerMsgVisuals(
+	const AString & a_PlayerUUID,
+	AString & a_MsgPrefix,
+	AString & a_MsgSuffix,
+	AString & a_MsgNameColorCode
+)
+{
+	AString Rank = GetPlayerRankName(a_PlayerUUID);
+	if (Rank.empty())
+	{
+		// Rank not found, return failure:
+		a_MsgPrefix.clear();
+		a_MsgSuffix.clear();
+		a_MsgNameColorCode.clear();
+		return false;
+	}
+	return GetRankVisuals(Rank, a_MsgPrefix, a_MsgSuffix, a_MsgNameColorCode);
+}
+
+
+
+
+
+void cRankManager::AddRank(
+	const AString & a_RankName,
+	const AString & a_MsgPrefix,
+	const AString & a_MsgSuffix,
+	const AString & a_MsgNameColorCode
+)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	try
+	{
+		// Check if such a rank name is already used:
+		{
+			SQLite::Statement stmt(m_DB, "SELECT COUNT(*) FROM Rank WHERE Name = ?");
+			stmt.bind(1, a_RankName);
+			if (stmt.executeStep())
+			{
+				if (stmt.getColumn(0).getInt() > 0)
+				{
+					// Rank already exists, do nothing:
+					return;
+				}
+			}
+		}
+		
+		// Insert a new rank:
+		SQLite::Statement stmt(m_DB, "INSERT INTO Rank (Name, MsgPrefix, MsgSuffix, MsgNameColorCode) VALUES (?, ?, ?, ?)");
+		stmt.bind(1, a_RankName);
+		stmt.bind(2, a_MsgPrefix);
+		stmt.bind(3, a_MsgSuffix);
+		stmt.bind(4, a_MsgNameColorCode);
+		if (stmt.exec() <= 0)
+		{
+			LOGWARNING("%s: Failed to add a new rank \"%s\".", __FUNCTION__, a_RankName.c_str());
+			return;
+		}
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to add a new rank \"%s\": %s", __FUNCTION__, a_RankName.c_str(), ex.what());
+	}
+}
+
+
+
+
+
+void cRankManager::AddGroup(const AString & a_GroupName)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	try
+	{
+		// Check if such a group name is already used:
+		{
+			SQLite::Statement stmt(m_DB, "SELECT COUNT(*) FROM PermGroup WHERE Name = ?");
+			stmt.bind(1, a_GroupName);
+			if (stmt.executeStep())
+			{
+				if (stmt.getColumn(0).getInt() > 0)
+				{
+					// Group already exists, do nothing:
+					return;
+				}
+			}
+		}
+		
+		// Insert a new group:
+		SQLite::Statement stmt(m_DB, "INSERT INTO PermGroup (Name) VALUES (?)");
+		stmt.bind(1, a_GroupName);
+		if (stmt.exec() <= 0)
+		{
+			LOGWARNING("%s: Failed to add a new group \"%s\".", __FUNCTION__, a_GroupName.c_str());
+			return;
+		}
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to add a new group \"%s\": %s", __FUNCTION__, a_GroupName.c_str(), ex.what());
+	}
+}
+
+
+
+
+
+void cRankManager::AddGroups(const AStringVector & a_GroupNames)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	try
+	{
+		for (AStringVector::const_iterator itr = a_GroupNames.begin(), end = a_GroupNames.end(); itr != end; ++itr)
+		{
+			// Check if such the group name is already used:
+			{
+				SQLite::Statement stmt(m_DB, "SELECT COUNT(*) FROM PermGroup WHERE Name = ?");
+				stmt.bind(1, *itr);
+				if (stmt.executeStep())
+				{
+					if (stmt.getColumn(0).getInt() > 0)
+					{
+						// Group already exists, do nothing:
+						return;
+					}
+				}
+			}
+			
+			// Insert a new group:
+			SQLite::Statement stmt(m_DB, "INSERT INTO PermGroup (Name) VALUES (?)");
+			stmt.bind(1, *itr);
+			if (stmt.exec() <= 0)
+			{
+				LOGWARNING("%s: Failed to add a new group \"%s\".", __FUNCTION__, itr->c_str());
+				return;
+			}
+		}  // for itr - a_GroupNames[]
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to add new groups: %s", __FUNCTION__, ex.what());
+	}
+}
+
+
+
+
+
+bool cRankManager::AddGroupToRank(const AString & a_GroupName, const AString & a_RankName)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	try
+	{
+		// Get the group's ID:
+		int GroupID;
+		{
+			SQLite::Statement stmt(m_DB, "SELECT PermGroupID FROM PermGroup WHERE Name = ?");
+			stmt.bind(1, a_GroupName);
+			if (!stmt.executeStep())
+			{
+				LOGWARNING("%s: No such group (%s), aborting.", __FUNCTION__, a_GroupName.c_str());
+				return false;
+			}
+			GroupID = stmt.getColumn(0);
+		}
+		
+		// Get the rank's ID:
+		int RankID;
+		{
+			SQLite::Statement stmt(m_DB, "SELECT RankID FROM Rank WHERE Name = ?");
+			stmt.bind(1, a_RankName);
+			if (!stmt.executeStep())
+			{
+				LOGWARNING("%s: No such rank (%s), aborting.", __FUNCTION__, a_RankName.c_str());
+				return false;
+			}
+			RankID = stmt.getColumn(0);
+		}
+		
+		// Check if the group is already there:
+		{
+			SQLite::Statement stmt(m_DB, "SELECT COUNT(*) FROM RankPermGroup WHERE RankID = ? AND PermGroupID = ?");
+			stmt.bind(1, RankID);
+			stmt.bind(2, GroupID);
+			if (!stmt.executeStep())
+			{
+				LOGWARNING("%s: Failed to check binding between rank %s and group %s, aborting.", __FUNCTION__, a_RankName.c_str(), a_GroupName.c_str());
+				return false;
+			}
+			if (stmt.getColumn(0).getInt() > 0)
+			{
+				LOGD("%s: Group %s already present in rank %s, skipping and returning success.",
+					__FUNCTION__, a_GroupName.c_str(), a_RankName.c_str()
+				);
+				return true;
+			}
+		}
+		
+		// Add the group:
+		{
+			SQLite::Statement stmt(m_DB, "INSERT INTO RankPermGroup (RankID, PermGroupID) VALUES (?, ?)");
+			stmt.bind(1, RankID);
+			stmt.bind(2, GroupID);
+			if (stmt.exec() <= 0)
+			{
+				LOGWARNING("%s: Failed to add group %s to rank %s, aborting.", __FUNCTION__, a_GroupName.c_str(), a_RankName.c_str());
+				return false;
+			}
+		}
+		
+		// Adding succeeded:
+		return true;
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to add group %s to rank %s: %s", __FUNCTION__, a_GroupName.c_str(), a_RankName.c_str(), ex.what());
+	}
+	return false;
+}
+
+
+
+
+
+bool cRankManager::AddPermissionToGroup(const AString & a_Permission, const AString & a_GroupName)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	try
+	{
+		// Get the group's ID:
+		int GroupID;
+		{
+			SQLite::Statement stmt(m_DB, "SELECT PermGroupID FROM PermGroup WHERE Name = ?");
+			stmt.bind(1, a_GroupName);
+			if (!stmt.executeStep())
+			{
+				LOGWARNING("%s: No such group (%s), aborting.", __FUNCTION__, a_GroupName.c_str());
+				return false;
+			}
+			GroupID = stmt.getColumn(0).getInt();
+		}
+		
+		// Check if the permission is already present:
+		{
+			SQLite::Statement stmt(m_DB, "SELECT COUNT(*) FROM PermissionItem WHERE PermGroupID = ? AND Permission = ?");
+			stmt.bind(1, GroupID);
+			stmt.bind(2, a_Permission);
+			if (!stmt.executeStep())
+			{
+				LOGWARNING("%s: Failed to check binding between permission %s and group %s, aborting.", __FUNCTION__, a_Permission.c_str(), a_GroupName.c_str());
+				return false;
+			}
+			if (stmt.getColumn(0).getInt() > 0)
+			{
+				LOGD("%s: Permission %s is already present in group %s, skipping and returning success.",
+					__FUNCTION__, a_Permission.c_str(), a_GroupName.c_str()
+				);
+				return true;
+			}
+		}
+		
+		// Add the permission:
+		{
+			SQLite::Statement stmt(m_DB, "INSERT INTO PermissionItem (Permission, PermGroupID) VALUES (?, ?)");
+			stmt.bind(1, a_Permission);
+			stmt.bind(2, GroupID);
+			if (stmt.exec() <= 0)
+			{
+				LOGWARNING("%s: Failed to add permission %s to group %s, aborting.", __FUNCTION__, a_Permission.c_str(), a_GroupName.c_str());
+				return false;
+			}
+		}
+		
+		// Adding succeeded:
+		return true;
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to add permission %s to group %s: %s",
+			__FUNCTION__, a_Permission.c_str(), a_GroupName.c_str(), ex.what()
+		);
+	}
+	return false;
+}
+
+
+
+
+
+bool cRankManager::AddPermissionsToGroup(const AStringVector & a_Permissions, const AString & a_GroupName)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	try
+	{
+		// Get the group's ID:
+		int GroupID;
+		{
+			SQLite::Statement stmt(m_DB, "SELECT PermGroupID FROM PermGroup WHERE Name = ?");
+			stmt.bind(1, a_GroupName);
+			if (!stmt.executeStep())
+			{
+				LOGWARNING("%s: No such group (%s), aborting.", __FUNCTION__, a_GroupName.c_str());
+				return false;
+			}
+			GroupID = stmt.getColumn(0).getInt();
+		}
+		
+		for (AStringVector::const_iterator itr = a_Permissions.begin(), end = a_Permissions.end(); itr != end; ++itr)
+		{
+			// Check if the permission is already present:
+			{
+				SQLite::Statement stmt(m_DB, "SELECT COUNT(*) FROM PermissionItem WHERE PermGroupID = ? AND Permission = ?");
+				stmt.bind(1, GroupID);
+				stmt.bind(2, *itr);
+				if (!stmt.executeStep())
+				{
+					LOGWARNING("%s: Failed to check binding between permission %s and group %s, aborting.", __FUNCTION__, itr->c_str(), a_GroupName.c_str());
+					return false;
+				}
+				if (stmt.getColumn(0).getInt() > 0)
+				{
+					LOGD("%s: Permission %s is already present in group %s, skipping and returning success.",
+						__FUNCTION__, itr->c_str(), a_GroupName.c_str()
+					);
+					continue;
+				}
+			}
+			
+			// Add the permission:
+			{
+				SQLite::Statement stmt(m_DB, "INSERT INTO PermissionItem (Permission, PermGroupID) VALUES (?, ?)");
+				stmt.bind(1, *itr);
+				stmt.bind(2, GroupID);
+				if (stmt.exec() <= 0)
+				{
+					LOGWARNING("%s: Failed to add permission %s to group %s, skipping.", __FUNCTION__, itr->c_str(), a_GroupName.c_str());
+					continue;
+				}
+			}
+		}  // for itr - a_Permissions[]
+		
+		// Adding succeeded:
+		return true;
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to add permissions to group %s: %s",
+			__FUNCTION__, a_GroupName.c_str(), ex.what()
+		);
+	}
+	return false;
+}
+
+
+
+
+
+void cRankManager::RemoveRank(const AString & a_RankName, const AString & a_ReplacementRankName)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+
+	// Check if the default rank is being removed with a proper replacement:
+	if ((a_RankName == m_DefaultRank) && !RankExists(a_ReplacementRankName))
+	{
+		LOGWARNING("%s: Cannot remove rank %s, it is the default rank and the replacement rank doesn't exist.", __FUNCTION__, a_RankName.c_str());
+		return;
+	}
+	
+	AStringVector res;
+	try
+	{
+		// Get the RankID for the rank being removed:
+		int RemoveRankID;
+		{
+			SQLite::Statement stmt(m_DB, "SELECT RankID FROM Rank WHERE Name = ?");
+			stmt.bind(1, a_RankName);
+			if (!stmt.executeStep())
+			{
+				LOGINFO("%s: Rank %s was not found. Skipping.", __FUNCTION__, a_RankName.c_str());
+				return;
+			}
+			RemoveRankID = stmt.getColumn(0).getInt();
+		}
+		
+		// Get the RankID for the replacement rank:
+		int ReplacementRankID = -1;
+		{
+			SQLite::Statement stmt(m_DB, "SELECT RankID FROM Rank WHERE Name = ?");
+			stmt.bind(1, a_ReplacementRankName);
+			if (stmt.executeStep())
+			{
+				ReplacementRankID = stmt.getColumn(0).getInt();
+			}
+		}
+		
+		// Remove the rank's bindings to groups:
+		{
+			SQLite::Statement stmt(m_DB, "DELETE FROM RankPermGroup WHERE RankID = ?");
+			stmt.bind(1, RemoveRankID);
+			stmt.exec();
+		}
+		
+		// Adjust players:
+		if (ReplacementRankID == -1)
+		{
+			// No replacement, just delete all the players that have the rank:
+			SQLite::Statement stmt(m_DB, "DELETE FROM PlayerRank WHERE RankID = ?");
+			stmt.bind(1, RemoveRankID);
+			stmt.exec();
+		}
+		else
+		{
+			// Replacement available, change all the player records:
+			SQLite::Statement stmt(m_DB, "UPDATE PlayerRank SET RankID = ? WHERE RankID = ?");
+			stmt.bind(1, ReplacementRankID);
+			stmt.bind(2, RemoveRankID);
+			stmt.exec();
+		}
+		
+		// Remove the rank from the DB:
+		{
+			SQLite::Statement stmt(m_DB, "DELETE FROM Rank WHERE RankID = ?");
+			stmt.bind(1, RemoveRankID);
+			stmt.exec();
+		}
+
+		// Update the default rank, if it was the one being removed:
+		if (a_RankName == m_DefaultRank)
+		{
+			m_DefaultRank = a_RankName;
+		}
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to remove rank from DB: %s", __FUNCTION__, ex.what());
+	}
+}
+
+
+
+
+
+void cRankManager::RemoveGroup(const AString & a_GroupName)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	try
+	{
+		// Get the ID of the group:
+		int GroupID;
+		{
+			SQLite::Statement stmt(m_DB, "SELECT PermGroupID FROM PermGroup WHERE Name = ?");
+			stmt.bind(1, a_GroupName);
+			if (!stmt.executeStep())
+			{
+				LOGINFO("%s: Group %s was not found, skipping.", __FUNCTION__, a_GroupName.c_str());
+				return;
+			}
+			GroupID = stmt.getColumn(0).getInt();
+		}
+		
+		// Remove all permissions from the group:
+		{
+			SQLite::Statement stmt(m_DB, "DELETE FROM PermissionItem WHERE PermGroupID = ?");
+			stmt.bind(1, GroupID);
+			stmt.exec();
+		}
+		
+		// Remove the group from all ranks that contain it:
+		{
+			SQLite::Statement stmt(m_DB, "DELETE FROM RankPermGroup WHERE PermGroupID = ?");
+			stmt.bind(1, GroupID);
+			stmt.exec();
+		}
+		
+		// Remove the group itself:
+		{
+			SQLite::Statement stmt(m_DB, "DELETE FROM PermGroup WHERE PermGroupID = ?");
+			stmt.bind(1, GroupID);
+			stmt.exec();
+		}
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to remove group %s from DB: %s", __FUNCTION__, a_GroupName.c_str(), ex.what());
+	}
+}
+
+
+
+
+
+void cRankManager::RemoveGroupFromRank(const AString & a_GroupName, const AString & a_RankName)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	try
+	{
+		// Get the IDs of the group and the rank:
+		int GroupID, RankID;
+		{
+			SQLite::Statement stmt(m_DB,
+				"SELECT PermGroup.PermGroupID, Rank.RankID FROM PermGroup "
+					"LEFT JOIN RankPermGroup ON RankPermGroup.PermGroupID = PermGroup.PermGroupID "
+					"LEFT JOIN Rank ON Rank.RankID = RankPermGroup.RankID "
+				"WHERE PermGroup.Name = ? AND Rank.Name = ?"
+			);
+			stmt.bind(1, a_GroupName);
+			stmt.bind(2, a_RankName);
+			if (!stmt.executeStep())
+			{
+				LOGINFO("%s: Group %s was not found in rank %s, skipping.", __FUNCTION__, a_GroupName.c_str(), a_RankName.c_str());
+				return;
+			}
+			GroupID = stmt.getColumn(0).getInt();
+			RankID = stmt.getColumn(1).getInt();
+		}
+		
+		// Remove the group from all ranks that contain it:
+		{
+			SQLite::Statement stmt(m_DB, "DELETE FROM RankPermGroup WHERE PermGroupID = ?");
+			stmt.bind(1, GroupID);
+			stmt.exec();
+		}
+		
+		// Remove the group-to-rank binding:
+		{
+			SQLite::Statement stmt(m_DB, "DELETE FROM RankPermGroup WHERE PermGroupID = ? AND RankID = ?");
+			stmt.bind(1, GroupID);
+			stmt.bind(1, RankID);
+			stmt.exec();
+		}
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to remove group %s from rank %s in the DB: %s", __FUNCTION__, a_GroupName.c_str(), a_RankName.c_str(), ex.what());
+	}
+}
+
+
+
+
+
+void cRankManager::RemovePermissionFromGroup(const AString & a_Permission, const AString & a_GroupName)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	try
+	{
+		// Get the ID of the group:
+		int GroupID;
+		{
+			SQLite::Statement stmt(m_DB, "SELECT PermGroupID FROM PermGroup WHERE Name = ?");
+			stmt.bind(1, a_GroupName);
+			if (!stmt.executeStep())
+			{
+				LOGINFO("%s: Group %s was not found, skipping.", __FUNCTION__, a_GroupName.c_str());
+				return;
+			}
+			GroupID = stmt.getColumn(0).getInt();
+		}
+		
+		// Remove the permission from the group:
+		{
+			SQLite::Statement stmt(m_DB, "DELETE FROM PermissionItem WHERE PermGroupID = ? AND Permission = ?");
+			stmt.bind(1, GroupID);
+			stmt.bind(2, a_Permission);
+			stmt.exec();
+		}
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to remove permission %s from group %s in DB: %s",
+			__FUNCTION__, a_Permission.c_str(), a_GroupName.c_str(), ex.what()
+		);
+	}
+}
+
+
+
+
+
+bool cRankManager::RenameRank(const AString & a_OldName, const AString & a_NewName)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	try
+	{
+		// Check that NewName doesn't exist:
+		{
+			SQLite::Statement stmt(m_DB, "SELECT RankID FROM Rank WHERE Name = ?");
+			stmt.bind(1, a_NewName);
+			if (stmt.executeStep())
+			{
+				LOGINFO("%s: Rank %s is already present, cannot rename %s", __FUNCTION__, a_NewName.c_str(), a_OldName.c_str());
+				return false;
+			}
+		}
+		
+		// Rename:
+		{
+			SQLite::Statement stmt(m_DB, "UPDATE Rank SET Name = ? WHERE Name = ?");
+			stmt.bind(1, a_NewName);
+			stmt.bind(2, a_OldName);
+			if (stmt.exec() <= 0)
+			{
+				LOGINFO("%s: There is no rank %s, cannot rename to %s.", __FUNCTION__, a_OldName.c_str(), a_NewName.c_str());
+				return false;
+			}
+		}
+		
+		// Update the default rank, if it was the one being renamed:
+		if (a_OldName == m_DefaultRank)
+		{
+			m_DefaultRank = a_NewName;
+		}
+
+		return true;
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to rename rank %s to %s in DB: %s",
+			__FUNCTION__, a_OldName.c_str(), a_NewName.c_str(), ex.what());
+	}
+	return false;
+}
+
+
+
+
+
+bool cRankManager::RenameGroup(const AString & a_OldName, const AString & a_NewName)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	try
+	{
+		// Check that NewName doesn't exist:
+		{
+			SQLite::Statement stmt(m_DB, "SELECT PermGroupID FROM PermGroup WHERE Name = ?");
+			stmt.bind(1, a_NewName);
+			if (stmt.executeStep())
+			{
+				LOGD("%s: Group %s is already present, cannot rename %s", __FUNCTION__, a_NewName.c_str(), a_OldName.c_str());
+				return false;
+			}
+		}
+		
+		// Rename:
+		bool res;
+		{
+			SQLite::Statement stmt(m_DB, "UPDATE PermGroup SET Name = ? WHERE Name = ?");
+			stmt.bind(1, a_NewName);
+			stmt.bind(2, a_OldName);
+			res = (stmt.exec() > 0);
+		}
+		
+		return res;
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to rename group %s to %s in DB: %s",
+			__FUNCTION__, a_OldName.c_str(), a_NewName.c_str(), ex.what());
+	}
+	return false;
+}
+
+
+
+
+
+void cRankManager::SetPlayerRank(const AString & a_PlayerUUID, const AString & a_PlayerName, const AString & a_RankName)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	try
+	{
+		// Get the rank ID:
+		int RankID;
+		{
+			SQLite::Statement stmt(m_DB, "SELECT RankID FROM Rank WHERE Name = ?");
+			stmt.bind(1, a_RankName);
+			if (!stmt.executeStep())
+			{
+				LOGWARNING("%s: There is no rank %s, aborting.", __FUNCTION__, a_RankName.c_str());
+				return;
+			}
+			RankID = stmt.getColumn(0).getInt();
+		}
+		
+		// Update the player's rank, if already in DB:
+		{
+			SQLite::Statement stmt(m_DB, "UPDATE PlayerRank SET RankID = ?, PlayerName = ? WHERE PlayerUUID = ?");
+			stmt.bind(1, RankID);
+			stmt.bind(2, a_PlayerName);
+			stmt.bind(3, a_PlayerUUID);
+			if (stmt.exec() > 0)
+			{
+				// Successfully updated the player's rank
+				return;
+			}
+		}
+		
+		// The player is not yet in the DB, add them:
+		SQLite::Statement stmt(m_DB, "INSERT INTO PlayerRank (RankID, PlayerUUID, PlayerName) VALUES (?, ?, ?)");
+		stmt.bind(1, RankID);
+		stmt.bind(2, a_PlayerUUID);
+		stmt.bind(3, a_PlayerName);
+		if (stmt.exec() > 0)
+		{
+			// Successfully added the player
+			return;
+		}
+		
+		LOGWARNING("%s: Failed to set player UUID %s to rank %s.",
+			__FUNCTION__, a_PlayerUUID.c_str(), a_RankName.c_str()
+		);
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to set player UUID %s to rank %s: %s",
+			__FUNCTION__, a_PlayerUUID.c_str(), a_RankName.c_str(), ex.what()
+		);
+	}
+}
+
+
+
+
+
+void cRankManager::RemovePlayerRank(const AString & a_PlayerUUID)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+
+	try
+	{
+		SQLite::Statement stmt(m_DB, "DELETE FROM PlayerRank WHERE PlayerUUID = ?");
+		stmt.bind(1, a_PlayerUUID);
+		stmt.exec();
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to remove rank from player UUID %s: %s",
+			__FUNCTION__, a_PlayerUUID.c_str(), ex.what()
+		);
+	}
+}
+
+
+
+
+
+void cRankManager::SetRankVisuals(
+	const AString & a_RankName,
+	const AString & a_MsgPrefix,
+	const AString & a_MsgSuffix,
+	const AString & a_MsgNameColorCode
+)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	try
+	{
+		SQLite::Statement stmt(m_DB, "UPDATE Rank SET MsgPrefix = ?, MsgSuffix = ?, MsgNameColorCode = ? WHERE Name = ?");
+		stmt.bind(1, a_MsgPrefix);
+		stmt.bind(2, a_MsgSuffix);
+		stmt.bind(3, a_MsgNameColorCode);
+		stmt.bind(4, a_RankName);
+		if (!stmt.executeStep())
+		{
+			LOGINFO("%s: Rank %s not found, visuals not set.", __FUNCTION__, a_RankName.c_str());
+		}
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to get ranks from DB: %s", __FUNCTION__, ex.what());
+	}
+}
+
+
+
+
+
+bool cRankManager::GetRankVisuals(
+	const AString & a_RankName,
+	AString & a_MsgPrefix,
+	AString & a_MsgSuffix,
+	AString & a_MsgNameColorCode
+)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	try
+	{
+		SQLite::Statement stmt(m_DB, "SELECT MsgPrefix, MsgSuffix, MsgNameColorCode FROM Rank WHERE Name = ?");
+		stmt.bind(1, a_RankName);
+		if (!stmt.executeStep())
+		{
+			// Rank not found
+			return false;
+		}
+		a_MsgPrefix = stmt.getColumn(0).getText();
+		a_MsgSuffix = stmt.getColumn(1).getText();
+		a_MsgNameColorCode = stmt.getColumn(2).getText();
+		return true;
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to get ranks from DB: %s", __FUNCTION__, ex.what());
+	}
+	return false;
+}
+
+
+
+
+
+bool cRankManager::RankExists(const AString & a_RankName)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	try
+	{
+		SQLite::Statement stmt(m_DB, "SELECT * FROM Rank WHERE Name = ?");
+		stmt.bind(1, a_RankName);
+		if (stmt.executeStep())
+		{
+			// The rank was found
+			return true;
+		}
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to query DB for rank %s: %s", __FUNCTION__, a_RankName.c_str(), ex.what());
+	}
+	return false;
+}
+
+
+
+
+
+bool cRankManager::GroupExists(const AString & a_GroupName)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	try
+	{
+		SQLite::Statement stmt(m_DB, "SELECT * FROM PermGroup WHERE Name = ?");
+		stmt.bind(1, a_GroupName);
+		if (stmt.executeStep())
+		{
+			// The group was found
+			return true;
+		}
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to query DB for group %s: %s", __FUNCTION__, a_GroupName.c_str(), ex.what());
+	}
+	return false;
+}
+
+
+
+
+
+bool cRankManager::IsPlayerRankSet(const AString & a_PlayerUUID)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	try
+	{
+		SQLite::Statement stmt(m_DB, "SELECT * FROM PlayerRank WHERE PlayerUUID = ?");
+		stmt.bind(1, a_PlayerUUID);
+		if (stmt.executeStep())
+		{
+			// The player UUID was found, they have a rank
+			return true;
+		}
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to query DB for player UUID %s: %s", __FUNCTION__, a_PlayerUUID.c_str(), ex.what());
+	}
+	return false;
+}
+
+
+
+
+
+bool cRankManager::IsGroupInRank(const AString & a_GroupName, const AString & a_RankName)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	try
+	{
+		SQLite::Statement stmt(m_DB,
+			"SELECT * FROM Rank "
+				"LEFT JOIN RankPermGroup ON Rank.RankID = RankPermGroup.RankID "
+				"LEFT JOIN PermGroup ON PermGroup.PermGroupID = RankPermGroup.PermGroupID "
+			"WHERE Rank.Name = ? AND PermGroup.Name = ?"
+		);
+		stmt.bind(1, a_RankName);
+		stmt.bind(2, a_GroupName);
+		if (stmt.executeStep())
+		{
+			// The group is in the rank
+			return true;
+		}
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to query DB: %s", __FUNCTION__, ex.what());
+	}
+	return false;
+}
+
+
+
+
+
+bool cRankManager::IsPermissionInGroup(const AString & a_Permission, const AString & a_GroupName)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+	
+	try
+	{
+		SQLite::Statement stmt(m_DB,
+			"SELECT * FROM PermissionItem "
+				"LEFT JOIN PermGroup ON PermGroup.PermGroupID = PermissionItem.PermGroupID "
+			"WHERE PermissionItem.Permission = ? AND PermGroup.Name = ?"
+		);
+		stmt.bind(1, a_Permission);
+		stmt.bind(2, a_GroupName);
+		if (stmt.executeStep())
+		{
+			// The permission is in the group
+			return true;
+		}
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to query DB: %s", __FUNCTION__, ex.what());
+	}
+	return false;
+}
+
+
+
+
+
+void cRankManager::NotifyNameUUID(const AString & a_PlayerName, const AString & a_UUID)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+
+	try
+	{
+		SQLite::Statement stmt(m_DB, "UPDATE PlayerRank SET PlayerName = ? WHERE PlayerUUID = ?");
+		stmt.bind(1, a_PlayerName);
+		stmt.bind(2, a_UUID);
+		stmt.exec();
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to update DB: %s", __FUNCTION__, ex.what());
+	}
+}
+
+
+
+
+
+bool cRankManager::SetDefaultRank(const AString & a_RankName)
+{
+	ASSERT(m_IsInitialized);
+	cCSLock Lock(m_CS);
+
+	try
+	{
+		// Find the rank's ID:
+		int RankID = 0;
+		{
+			SQLite::Statement stmt(m_DB, "SELECT RankID FROM Rank WHERE Name = ?");
+			stmt.bind(1, a_RankName);
+			if (!stmt.executeStep())
+			{
+				LOGINFO("%s: Cannot set rank %s as the default, it does not exist.", __FUNCTION__, a_RankName.c_str());
+				return false;
+			}
+		}
+
+		// Set the rank as the default:
+		{
+			SQLite::Statement stmt(m_DB, "UPDATE DefaultRank SET RankID = ?");
+			stmt.bind(1, RankID);
+			if (stmt.exec() < 1)
+			{
+				// Failed to update, there might be none in the DB, try inserting:
+				SQLite::Statement stmt2(m_DB, "INSERT INTO DefaultRank (RankID) VALUES (?)");
+				stmt2.bind(1, RankID);
+				if (stmt2.exec() < 1)
+				{
+					LOGINFO("%s: Cannot update the default rank in the DB to %s.", __FUNCTION__, a_RankName.c_str());
+					return false;
+				}
+			}
+		}
+
+		// Set the internal cache:
+		m_DefaultRank = a_RankName;
+		return true;
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to update DB: %s", __FUNCTION__, ex.what());
+		return false;
+	}
+}
+
+
+
+
+
+bool cRankManager::AreDBTablesEmpty(void)
+{
+	return (
+		IsDBTableEmpty("Rank") &&
+		IsDBTableEmpty("PlayerRank") &&
+		IsDBTableEmpty("PermGroup") &&
+		IsDBTableEmpty("RankPermGroup") &&
+		IsDBTableEmpty("PermissionItem") &&
+		IsDBTableEmpty("DefaultRank")
+	);
+}
+
+
+
+
+
+bool cRankManager::IsDBTableEmpty(const AString & a_TableName)
+{
+	try
+	{
+		SQLite::Statement stmt(m_DB, "SELECT COUNT(*) FROM " + a_TableName);
+		return (stmt.executeStep() && (stmt.getColumn(0).getInt() == 0));
+	}
+	catch (const SQLite::Exception & ex)
+	{
+		LOGWARNING("%s: Failed to query DB: %s", __FUNCTION__, ex.what());
+	}
+	return false;
+}
+
+
+
+
+
+void cRankManager::CreateDefaults(void)
+{
+	// Wrap everything in a big transaction to speed things up:
+	cMassChangeLock Lock(*this);
+
+	// Create ranks:
+	AddRank("Default",  "", "", "");
+	AddRank("VIP",      "", "", "");
+	AddRank("Operator", "", "", "");
+	AddRank("Admin",    "", "", "");
+
+	// Create groups:
+	AddGroup("Default");
+	AddGroup("Kick");
+	AddGroup("Teleport");
+	AddGroup("Everything");
+
+	// Add groups to ranks:
+	AddGroupToRank("Default",    "Default");
+	AddGroupToRank("Teleport",   "VIP");
+	AddGroupToRank("Teleport",   "Operator");
+	AddGroupToRank("Kick",       "Operator");
+	AddGroupToRank("Everything", "Admin");
+
+	// Add permissions to groups:
+	AddPermissionToGroup("core.build", "Default");
+	AddPermissionToGroup("core.tp",    "Teleport");
+	AddPermissionToGroup("core.kick",  "Kick");
+	AddPermissionToGroup("*",          "Everything");
+
+	// Set the default rank:
+	SetDefaultRank("Default");
+}
+
+
+
+
diff --git a/src/RankManager.h b/src/RankManager.h
new file mode 100644
index 000000000..f364bba6a
--- /dev/null
+++ b/src/RankManager.h
@@ -0,0 +1,246 @@
+
+// RankManager.h
+
+// Declares the cRankManager class that represents the rank manager responsible for assigning permissions and message visuals to players
+
+
+
+
+#pragma once
+
+#include "SQLiteCpp/Database.h"
+#include "SQLiteCpp/Transaction.h"
+
+
+
+
+
+class cMojangAPI;
+
+
+
+
+
+class cRankManager
+{
+public:
+	/** Acquire this lock to perform mass changes.
+	Improves performance by wrapping everything into a transaction.
+	Makes sure that no other thread is accessing the DB. */
+	class cMassChangeLock
+	{
+	public:
+		cMassChangeLock(cRankManager & a_RankManager) :
+			m_Lock(a_RankManager.m_CS),
+			m_Transaction(a_RankManager.m_DB)
+		{
+		}
+		
+		~cMassChangeLock()
+		{
+			m_Transaction.commit();
+		}
+		
+	protected:
+		cCSLock m_Lock;
+		SQLite::Transaction m_Transaction;
+	};
+	
+	
+	/** Creates the rank manager. Needs to be initialized before other use. */
+	cRankManager(void);
+
+	~cRankManager();
+	
+	/** Initializes the rank manager. Performs migration and default-setting if no data is found in the DB.
+	The a_MojangAPI param is used when migrating from old ini files, to look up player UUIDs. */
+	void Initialize(cMojangAPI & a_MojangAPI);
+	
+	/** Returns the name of the rank that the specified player has assigned to them.
+	If the player has no rank assigned, returns an empty string (NOT the default rank). */
+	AString GetPlayerRankName(const AString & a_PlayerUUID);
+	
+	/** Returns the names of Groups that the specified player has assigned to them. */
+	AStringVector GetPlayerGroups(const AString & a_PlayerUUID);
+	
+	/** Returns the permissions that the specified player has assigned to them.
+	If the player has no rank assigned to them, returns the default rank's permissions. */
+	AStringVector GetPlayerPermissions(const AString & a_PlayerUUID);
+	
+	/** Returns the names of groups that the specified rank has assigned to it.
+	Returns an empty vector if the rank doesn't exist. */
+	AStringVector GetRankGroups(const AString & a_RankName);
+	
+	/** Returns the permissions that the specified group has assigned to it.
+	Returns an empty vector if the group doesn't exist. */
+	AStringVector GetGroupPermissions(const AString & a_GroupName);
+	
+	/** Returns all permissions that the specified rank has assigned to it, through all its groups.
+	Returns an empty vector if the rank doesn't exist. Any non-existent groups are ignored. */
+	AStringVector GetRankPermissions(const AString & a_RankName);
+	
+	/** Returns the names of all defined ranks. */
+	AStringVector GetAllRanks(void);
+	
+	/** Returns the names of all permission groups. */
+	AStringVector GetAllGroups(void);
+	
+	/** Returns all the distinct permissions that are stored in the DB. */
+	AStringVector GetAllPermissions(void);
+	
+	/** Returns the message visuals (prefix, postfix, color) for the specified player.
+	Returns true if the visuals were read from the DB, false if not (player not found etc). */
+	bool GetPlayerMsgVisuals(
+		const AString & a_PlayerUUID,
+		AString & a_MsgPrefix,
+		AString & a_MsgSuffix,
+		AString & a_MsgNameColorCode
+	);
+	
+	/** Adds a new rank. No action if the rank already exists. */
+	void AddRank(
+		const AString & a_RankName,
+		const AString & a_MsgPrefix,
+		const AString & a_MsgSuffix,
+		const AString & a_MsgNameColorCode
+	);
+	
+	/** Adds a new permission group. No action if such a group already exists. */
+	void AddGroup(const AString & a_GroupName);
+	
+	/** Bulk-adds groups. Group names that already exist are silently skipped. */
+	void AddGroups(const AStringVector & a_GroupNames);
+	
+	/** Adds the specified permission group to the specified rank.
+	Fails if the rank or group names are not found.
+	Returns true if successful, false on error. */
+	bool AddGroupToRank(const AString & a_GroupName, const AString & a_RankName);
+	
+	/** Adds the specified permission to the specified permission group.
+	Fails if the permission group name is not found.
+	Returns true if successful, false on error. */
+	bool AddPermissionToGroup(const AString & a_Permission, const AString & a_GroupName);
+	
+	/** Adds the specified permissions to the specified permission group.
+	Fails if the permission group name is not found.
+	Returns true if successful, false on error. */
+	bool AddPermissionsToGroup(const AStringVector & a_Permissions, const AString & a_GroupName);
+	
+	/** Removes the specified rank.
+	All players assigned to that rank will be re-assigned to a_ReplacementRankName.
+	If a_ReplacementRankName is empty or not a valid rank, the player will be removed from the DB,
+	which means they will receive the default rank the next time they are queried.
+	If the rank being removed is the default rank, the default will be changed to the replacement
+	rank; the operation fails if there's no replacement. */
+	void RemoveRank(const AString & a_RankName, const AString & a_ReplacementRankName);
+	
+	/** Removes the specified group completely.
+	The group will first be removed from all ranks using it, and then removed itself. */
+	void RemoveGroup(const AString & a_GroupName);
+	
+	/** Removes the specified group from the specified rank.
+	The group will stay defined, even if no rank is using it. */
+	void RemoveGroupFromRank(const AString & a_GroupName, const AString & a_RankName);
+	
+	/** Removes the specified permission from the specified group. */
+	void RemovePermissionFromGroup(const AString & a_Permission, const AString & a_GroupName);
+	
+	/** Renames the specified rank. No action if the rank name is not found.
+	Fails if the new name is already used.
+	Updates the cached m_DefaultRank if the default rank is being renamed.
+	Returns true on success, false on failure. */
+	bool RenameRank(const AString & a_OldName, const AString & a_NewName);
+	
+	/** Renames the specified group. No action if the rank name is not found.
+	Fails if the new name is already used.
+	Returns true on success, false on failure. */
+	bool RenameGroup(const AString & a_OldName, const AString & a_NewName);
+	
+	/** Sets the specified player's rank.
+	If the player already had rank assigned to them, it is overwritten with the new rank and name.
+	Note that this doesn't change the cPlayer if the player is already connected, you need to update all the
+	cPlayer instances manually.
+	The PlayerName is provided for reference, so that GetRankPlayerNames() can work. */
+	void SetPlayerRank(const AString & a_PlayerUUID, const AString & a_PlayerName, const AString & a_RankName);
+
+	/** Removes the player's rank assignment. The player is left without a rank.
+	Note that this doesn't change the cPlayer instances for the already connected players, you need to update
+	all the instances manually.
+	No action if the player has no rank assigned to them already. */
+	void RemovePlayerRank(const AString & a_PlayerUUID);
+	
+	/** Sets the message visuals of an existing rank. No action if the rank name is not found. */
+	void SetRankVisuals(
+		const AString & a_RankName,
+		const AString & a_MsgPrefix,
+		const AString & a_MsgSuffix,
+		const AString & a_MsgNameColorCode
+	);
+	
+	/** Returns the message visuals of an existing rank.
+	Returns true if successful, false on error (rank doesn't exist). */
+	bool GetRankVisuals(
+		const AString & a_RankName,
+		AString & a_MsgPrefix,
+		AString & a_MsgSuffix,
+		AString & a_MsgNameColorCode
+	);
+	
+	/** Returns true iff the specified rank exists in the DB. */
+	bool RankExists(const AString & a_RankName);
+	
+	/** Returns true iff the specified group exists in the DB. */
+	bool GroupExists(const AString & a_GroupName);
+	
+	/** Returns true iff the specified player has a rank assigned to them in the DB. */
+	bool IsPlayerRankSet(const AString & a_PlayerUUID);
+	
+	/** Returns true iff the specified rank contains the specified group. */
+	bool IsGroupInRank(const AString & a_GroupName, const AString & a_RankName);
+	
+	/** Returns true iff the specified group contains the specified permission. */
+	bool IsPermissionInGroup(const AString & a_Permission, const AString & a_GroupName);
+	
+	/** Called by cMojangAPI whenever the playername-uuid pairing is discovered. Updates the DB. */
+	void NotifyNameUUID(const AString & a_PlayerName, const AString & a_UUID);
+
+	/** Sets the specified rank as the default rank.
+	Returns true on success, false on failure (rank not found). */
+	bool SetDefaultRank(const AString & a_RankName);
+
+	/** Returns the name of the default rank. */
+	const AString & GetDefaultRank(void) const { return m_DefaultRank; }
+
+protected:
+
+	/** The database storage for all the data. Protected by m_CS. */
+	SQLite::Database m_DB;
+	
+	/** The name of the default rank. Kept as a cache so that queries for it don't need to go through the DB. */
+	AString m_DefaultRank;
+
+	/** The mutex protecting m_DB and m_DefaultRank against multi-threaded access. */
+	cCriticalSection m_CS;
+	
+	/** Set to true once the manager is initialized. */
+	bool m_IsInitialized;
+
+	/** The MojangAPI instance that is used for translating playernames to UUIDs.
+	Set in Initialize(), may be NULL. */
+	cMojangAPI * m_MojangAPI;
+	
+	
+	/** Returns true if all the DB tables are empty, indicating a fresh new install. */
+	bool AreDBTablesEmpty(void);
+	
+	/** Returns true iff the specified DB table is empty.
+	If there's an error while querying, returns false. */
+	bool IsDBTableEmpty(const AString & a_TableName);
+
+	/** Creates a default set of ranks / groups / permissions. */
+	void CreateDefaults(void);
+} ;
+
+
+
+
diff --git a/src/Root.cpp b/src/Root.cpp
index ee0d9b835..ef66f9870 100644
--- a/src/Root.cpp
+++ b/src/Root.cpp
@@ -6,7 +6,6 @@
 #include "World.h"
 #include "WebAdmin.h"
 #include "FurnaceRecipe.h"
-#include "GroupManager.h"
 #include "CraftingRecipes.h"
 #include "Bindings/PluginManager.h"
 #include "MonsterConfig.h"
@@ -47,7 +46,6 @@ cRoot::cRoot(void) :
 	m_InputThread(NULL),
 	m_Server(NULL),
 	m_MonsterConfig(NULL),
-	m_GroupManager(NULL),
 	m_CraftingRecipes(NULL),
 	m_FurnaceRecipe(NULL),
 	m_WebAdmin(NULL),
@@ -161,7 +159,7 @@ void cRoot::Start(void)
 		m_WebAdmin->Init();
 
 		LOGD("Loading settings...");
-		m_GroupManager    = new cGroupManager();
+		m_RankManager.Initialize(m_MojangAPI);
 		m_CraftingRecipes = new cCraftingRecipes;
 		m_FurnaceRecipe   = new cFurnaceRecipe();
 		
@@ -240,8 +238,6 @@ void cRoot::Start(void)
 		LOGD("Unloading recipes...");
 		delete m_FurnaceRecipe;   m_FurnaceRecipe = NULL;
 		delete m_CraftingRecipes; m_CraftingRecipes = NULL;
-		LOGD("Forgetting groups...");
-		delete m_GroupManager; m_GroupManager = NULL;
 		LOGD("Unloading worlds...");
 		UnloadWorlds();
 		
@@ -555,17 +551,6 @@ void cRoot::SaveAllChunks(void)
 
 
 
-void cRoot::ReloadGroups(void)
-{
-	LOG("Reload groups ...");
-	m_GroupManager->LoadGroups();
-	m_GroupManager->CheckUsers();
-}
-
-
-
-
-
 void cRoot::BroadcastChat(const AString & a_Message, eMessageType a_ChatPrefix)
 {
 	for (WorldMap::iterator itr = m_WorldsByName.begin(), end = m_WorldsByName.end(); itr != end; ++itr)
diff --git a/src/Root.h b/src/Root.h
index 6840efcbe..9bc975889 100644
--- a/src/Root.h
+++ b/src/Root.h
@@ -5,6 +5,7 @@
 #include "Protocol/MojangAPI.h"
 #include "HTTPServer/HTTPServer.h"
 #include "Defines.h"
+#include "RankManager.h"
 
 
 
@@ -13,7 +14,6 @@
 // fwd:
 class cThread;
 class cMonsterConfig;
-class cGroupManager;
 class cCraftingRecipes;
 class cFurnaceRecipe;
 class cWebAdmin;
@@ -78,7 +78,6 @@ public:
 	
 	cMonsterConfig * GetMonsterConfig(void) { return m_MonsterConfig; }
 
-	cGroupManager *    GetGroupManager   (void) { return m_GroupManager; }     // tolua_export
 	cCraftingRecipes * GetCraftingRecipes(void) { return m_CraftingRecipes; }  // tolua_export
 	cFurnaceRecipe *   GetFurnaceRecipe  (void) { return m_FurnaceRecipe; }    // Exported in ManualBindings.cpp with quite a different signature
 	
@@ -89,6 +88,7 @@ public:
 	cPluginManager *   GetPluginManager  (void) { return m_PluginManager; }    // tolua_export
 	cAuthenticator &   GetAuthenticator  (void) { return m_Authenticator; }
 	cMojangAPI &       GetMojangAPI      (void) { return m_MojangAPI; }
+	cRankManager &     GetRankManager    (void) { return m_RankManager; }
 
 	/** Queues a console command for execution through the cServer class.
 	The command will be executed in the tick thread
@@ -122,9 +122,6 @@ public:
 	/// Saves all chunks in all worlds
 	void SaveAllChunks(void);  // tolua_export
 	
-	/// Reloads all the groups
-	void ReloadGroups(void);  // tolua_export
-	
 	/// Calls the callback for each player in all worlds
 	bool ForEachPlayer(cPlayerListCallback & a_Callback);  // >> EXPORTED IN MANUALBINDINGS <<
 
@@ -187,13 +184,13 @@ private:
 	cServer *        m_Server;
 	cMonsterConfig * m_MonsterConfig;
 
-	cGroupManager *    m_GroupManager;
 	cCraftingRecipes * m_CraftingRecipes;
 	cFurnaceRecipe *   m_FurnaceRecipe;
 	cWebAdmin *        m_WebAdmin;
 	cPluginManager *   m_PluginManager;
 	cAuthenticator     m_Authenticator;
 	cMojangAPI         m_MojangAPI;
+	cRankManager       m_RankManager;
 	cHTTPServer        m_HTTPServer;
 
 	bool m_bStop;
diff --git a/src/Server.cpp b/src/Server.cpp
index 42ad133f1..958fe83c8 100644
--- a/src/Server.cpp
+++ b/src/Server.cpp
@@ -11,7 +11,6 @@
 #include "World.h"
 #include "ChunkDef.h"
 #include "Bindings/PluginManager.h"
-#include "GroupManager.h"
 #include "ChatColor.h"
 #include "Entities/Player.h"
 #include "Inventory.h"
@@ -117,7 +116,9 @@ cServer::cServer(void) :
 	m_MaxPlayers(0),
 	m_bIsHardcore(false),
 	m_TickThread(*this),
-	m_ShouldAuthenticate(false)
+	m_ShouldAuthenticate(false),
+	m_ShouldLoadOfflinePlayerData(false),
+	m_ShouldLoadNamedPlayerData(true)
 {
 }
 
@@ -469,25 +470,17 @@ void cServer::ExecuteConsoleCommand(const AString & a_Cmd, cCommandOutputCallbac
 		PrintHelp(split, a_Output);
 		return;
 	}
-	if (split[0] == "reload")
+	else if (split[0] == "reload")
 	{
 		cPluginManager::Get()->ReloadPlugins();
-		cRoot::Get()->ReloadGroups();
 		return;
 	}
-	if (split[0] == "reloadplugins")
+	else if (split[0] == "reloadplugins")
 	{
 		cPluginManager::Get()->ReloadPlugins();
 		return;
 	}
-	if (split[0] == "reloadgroups")
-	{
-		cRoot::Get()->ReloadGroups();
-		a_Output.Out("Groups reloaded!");
-		a_Output.Finished();
-		return;
-	}
-	if (split[0] == "load")
+	else if (split[0] == "load")
 	{
 		if (split.size() > 1)
 		{
@@ -502,8 +495,7 @@ void cServer::ExecuteConsoleCommand(const AString & a_Cmd, cCommandOutputCallbac
 			return;
 		}
 	}
-
-	if (split[0] == "unload")
+	else if (split[0] == "unload")
 	{
 		if (split.size() > 1)
 		{
@@ -519,21 +511,21 @@ void cServer::ExecuteConsoleCommand(const AString & a_Cmd, cCommandOutputCallbac
 	}
 
 	// There is currently no way a plugin can do these (and probably won't ever be):
-	if (split[0].compare("chunkstats") == 0)
+	else if (split[0].compare("chunkstats") == 0)
 	{
 		cRoot::Get()->LogChunkStats(a_Output);
 		a_Output.Finished();
 		return;
 	}
 	#if defined(_MSC_VER) && defined(_DEBUG) && defined(ENABLE_LEAK_FINDER)
-	if (split[0].compare("dumpmem") == 0)
+	else if (split[0].compare("dumpmem") == 0)
 	{
 		LeakFinderXmlOutput Output("memdump.xml");
 		DumpUsedMemory(&Output);
 		return;
 	}
 	
-	if (split[0].compare("killmem") == 0)
+	else if (split[0].compare("killmem") == 0)
 	{
 		for (;;)
 		{
@@ -542,7 +534,7 @@ void cServer::ExecuteConsoleCommand(const AString & a_Cmd, cCommandOutputCallbac
 	}
 	#endif
 
-	if (cPluginManager::Get()->ExecuteConsoleCommand(split, a_Output))
+	else if (cPluginManager::Get()->ExecuteConsoleCommand(split, a_Output))
 	{
 		a_Output.Finished();
 		return;
diff --git a/src/Server.h b/src/Server.h
index c1640b388..f20e6932f 100644
--- a/src/Server.h
+++ b/src/Server.h
@@ -120,7 +120,7 @@ public:  // tolua_export
 	const AString & GetPublicKeyDER(void) const { return m_PublicKeyDER; }
 	
 	/** Returns true if authentication has been turned on in server settings. */
-	bool ShouldAuthenticate(void) const { return m_ShouldAuthenticate; }
+	bool ShouldAuthenticate(void) const { return m_ShouldAuthenticate; }  // tolua_export
 	
 	/** Returns true if offline UUIDs should be used to load data for players whose normal UUIDs cannot be found.
 	Loaded from the settings.ini [PlayerData].LoadOfflinePlayerData setting. */
diff --git a/src/SetChunkData.cpp b/src/SetChunkData.cpp
index 6e0c2733e..97903074a 100644
--- a/src/SetChunkData.cpp
+++ b/src/SetChunkData.cpp
@@ -5,6 +5,7 @@
 
 #include "Globals.h"
 #include "SetChunkData.h"
+#include "BlockEntities/BlockEntity.h"
 
 
 
@@ -13,6 +14,9 @@
 cSetChunkData::cSetChunkData(int a_ChunkX, int a_ChunkZ, bool a_ShouldMarkDirty) :
 	m_ChunkX(a_ChunkX),
 	m_ChunkZ(a_ChunkZ),
+	m_IsLightValid(false),
+	m_IsHeightMapValid(false),
+	m_AreBiomesValid(false),
 	m_ShouldMarkDirty(a_ShouldMarkDirty)
 {
 }
@@ -113,3 +117,35 @@ void cSetChunkData::CalculateHeightMap(void)
 
 
 
+
+void cSetChunkData::RemoveInvalidBlockEntities(void)
+{
+	for (cBlockEntityList::iterator itr = m_BlockEntities.begin(); itr != m_BlockEntities.end();)
+	{
+		BLOCKTYPE EntityBlockType = (*itr)->GetBlockType();
+		BLOCKTYPE WorldBlockType = cChunkDef::GetBlock(m_BlockTypes, (*itr)->GetRelX(), (*itr)->GetPosY(), (*itr)->GetRelZ());
+		if (EntityBlockType != WorldBlockType)
+		{
+			// Bad blocktype, remove the block entity:
+			LOGD("Block entity blocktype mismatch at {%d, %d, %d}: entity for blocktype %s(%d) in block %s(%d). Deleting the block entity.",
+				(*itr)->GetPosX(), (*itr)->GetPosY(), (*itr)->GetPosZ(),
+				ItemTypeToString(EntityBlockType).c_str(), EntityBlockType,
+				ItemTypeToString(WorldBlockType).c_str(),  WorldBlockType
+			);
+			cBlockEntityList::iterator itr2 = itr;
+			itr2++;
+			m_BlockEntities.erase(itr);
+			delete *itr;
+			itr = itr2;
+		}
+		else
+		{
+			// Good blocktype, keep the block entity:
+			++itr;
+		}
+	}  // for itr - m_BlockEntities[]
+}
+
+
+
+
diff --git a/src/SetChunkData.h b/src/SetChunkData.h
index a2f776f6b..03e9ef4d9 100644
--- a/src/SetChunkData.h
+++ b/src/SetChunkData.h
@@ -92,6 +92,9 @@ public:
 	/** Calculates the heightmap based on the contained blocktypes and marks it valid. */
 	void CalculateHeightMap(void);
 
+	/** Removes the block entities that don't have a proper blocktype at their corresponding coords. */
+	void RemoveInvalidBlockEntities(void);
+
 protected:
 	int m_ChunkX;
 	int m_ChunkZ;
diff --git a/src/Simulator/VanillaFluidSimulator.cpp b/src/Simulator/VanillaFluidSimulator.cpp
index 18d9b07e1..6df75eebb 100644
--- a/src/Simulator/VanillaFluidSimulator.cpp
+++ b/src/Simulator/VanillaFluidSimulator.cpp
@@ -98,7 +98,7 @@ int cVanillaFluidSimulator::CalculateFlowCost(cChunk * a_Chunk, int a_RelX, int
 	}
 
 	// Check if block below is passable
-	if (!a_Chunk->UnboundedRelGetBlock(a_RelX, a_RelY - 1, a_RelZ, BlockType, BlockMeta))
+	if ((a_RelY > 0) && !a_Chunk->UnboundedRelGetBlock(a_RelX, a_RelY - 1, a_RelZ, BlockType, BlockMeta))
 	{
 		return Cost;
 	}
diff --git a/src/StringUtils.h b/src/StringUtils.h
index 3d4379352..72a90a8c2 100644
--- a/src/StringUtils.h
+++ b/src/StringUtils.h
@@ -9,6 +9,7 @@
 #pragma once
 
 #include <string>
+#include <limits>
 
 
 
@@ -98,6 +99,68 @@ extern int GetBEInt(const char * a_Mem);
 /// Writes four bytes to the specified memory location so that they interpret as BigEndian int
 extern void SetBEInt(char * a_Mem, Int32 a_Value);
 
+/// Parses any integer type. Checks bounds and returns errors out of band.
+template <class T>
+bool StringToInteger(const AString & a_str, T & a_Num)
+{
+	size_t i = 0;
+	bool positive = true;
+	T result = 0;
+	if (a_str[0] == '+')
+	{
+		i++;
+	}
+	else if (a_str[0] == '-')
+	{
+		i++;
+		positive = false;
+	}
+	if (positive)
+	{
+		for (size_t size = a_str.size(); i < size; i++)
+		{
+			if ((a_str[i] < '0') || (a_str[i] > '9'))
+			{
+				return false;
+			}
+			if (std::numeric_limits<T>::max() / 10 < result)
+			{
+				return false;
+			}
+			result *= 10;
+			T digit = a_str[i] - '0';
+			if (std::numeric_limits<T>::max() - digit < result)
+			{
+				return false;
+			}
+			result += digit;
+		}
+	}
+	else
+	{
+		for (size_t size = a_str.size(); i < size; i++)
+		{
+			if ((a_str[i] < '0') || (a_str[i] > '9'))
+			{
+				return false;
+			}
+			if (std::numeric_limits<T>::min() / 10 > result)
+			{
+				return false;
+			}
+			result *= 10;
+			T digit = a_str[i] - '0';
+			if (std::numeric_limits<T>::min() + digit > result)
+			{
+				return false;
+			}
+			result -= digit;
+		}
+	}
+	a_Num = result;
+	return true;
+}
+
 // If you have any other string helper functions, declare them here
 
 
diff --git a/src/World.cpp b/src/World.cpp
index 2027e215a..b01e53638 100644
--- a/src/World.cpp
+++ b/src/World.cpp
@@ -251,8 +251,38 @@ cWorld::cWorld(const AString & a_WorldName, eDimension a_Dimension, const AStrin
 	m_TimeOfDay(0),
 	m_LastTimeUpdate(0),
 	m_SkyDarkness(0),
+	m_GameMode(gmNotSet),
+	m_bEnabledPVP(false),
+	m_IsDeepSnowEnabled(false),
+	m_ShouldLavaSpawnFire(true),
+	m_VillagersShouldHarvestCrops(true),
+	m_SimulatorManager(NULL),
+	m_SandSimulator(NULL),
+	m_WaterSimulator(NULL),
+	m_LavaSimulator(NULL),
+	m_FireSimulator(NULL),
+	m_RedstoneSimulator(NULL),
+	m_MaxPlayers(10),
+	m_ChunkMap(NULL),
+	m_bAnimals(true),
 	m_Weather(eWeather_Sunny),
 	m_WeatherInterval(24000),  // Guaranteed 1 day of sunshine at server start :)
+	m_MaxCactusHeight(3),
+	m_MaxSugarcaneHeight(4),
+	m_IsCactusBonemealable(false),
+	m_IsCarrotsBonemealable(true),
+	m_IsCropsBonemealable(true),
+	m_IsGrassBonemealable(true),
+	m_IsMelonStemBonemealable(true),
+	m_IsMelonBonemealable(true),
+	m_IsPotatoesBonemealable(true),
+	m_IsPumpkinStemBonemealable(true),
+	m_IsPumpkinBonemealable(true),
+	m_IsSaplingBonemealable(true),
+	m_IsSugarcaneBonemealable(false),
+	m_bCommandBlocksEnabled(true),
+	m_bUseChatPrefixes(false),
+	m_TNTShrapnelLevel(slNone),
 	m_Scoreboard(this),
 	m_MapManager(this),
 	m_GeneratorCallbacks(*this),
@@ -407,7 +437,7 @@ void cWorld::InitializeSpawn(void)
 	int ViewDist = IniFile.GetValueSetI("SpawnPosition", "PregenerateDistance", DefaultViewDist);
 	IniFile.WriteFile(m_IniFileName);
 	
-	LOG("Preparing spawn area in world \"%s\"...", m_WorldName.c_str());
+	LOG("Preparing spawn area in world \"%s\", %d x %d chunks, total %d chunks...", m_WorldName.c_str(), ViewDist, ViewDist, ViewDist * ViewDist);
 	for (int x = 0; x < ViewDist; x++)
 	{
 		for (int z = 0; z < ViewDist; z++)
@@ -3454,14 +3484,16 @@ void cWorld::cChunkGeneratorCallbacks::OnChunkGenerated(cChunkDesc & a_ChunkDesc
 	cChunkDef::BlockNibbles BlockMetas;
 	a_ChunkDesc.CompressBlockMetas(BlockMetas);
 
-	m_World->QueueSetChunkData(cSetChunkDataPtr(new cSetChunkData(
+	cSetChunkDataPtr SetChunkData(new cSetChunkData(
 		a_ChunkDesc.GetChunkX(), a_ChunkDesc.GetChunkZ(),
 		a_ChunkDesc.GetBlockTypes(), BlockMetas,
 		NULL, NULL,  // We don't have lighting, chunk will be lighted when needed
 		&a_ChunkDesc.GetHeightMap(), &a_ChunkDesc.GetBiomeMap(),
 		a_ChunkDesc.GetEntities(), a_ChunkDesc.GetBlockEntities(),
 		true
-	)));
+	));
+	SetChunkData->RemoveInvalidBlockEntities();
+	m_World->QueueSetChunkData(SetChunkData);
 }
 
 
diff --git a/src/WorldStorage/FastNBT.h b/src/WorldStorage/FastNBT.h
index 4ef72e379..ebf99103f 100644
--- a/src/WorldStorage/FastNBT.h
+++ b/src/WorldStorage/FastNBT.h
@@ -76,7 +76,9 @@ public:
 	
 	cFastNBTTag(eTagType a_Type, int a_Parent) :
 		m_Type(a_Type),
+		m_NameStart(0),
 		m_NameLength(0),
+		m_DataStart(0),
 		m_DataLength(0),
 		m_Parent(a_Parent),
 		m_PrevSibling(-1),
@@ -88,7 +90,9 @@ public:
 
 	cFastNBTTag(eTagType a_Type, int a_Parent, int a_PrevSibling) :
 		m_Type(a_Type),
+		m_NameStart(0),
 		m_NameLength(0),
+		m_DataStart(0),
 		m_DataLength(0),
 		m_Parent(a_Parent),
 		m_PrevSibling(a_PrevSibling),
diff --git a/src/WorldStorage/WSSAnvil.cpp b/src/WorldStorage/WSSAnvil.cpp
index a9c9ae4b5..5978e5ef8 100644
--- a/src/WorldStorage/WSSAnvil.cpp
+++ b/src/WorldStorage/WSSAnvil.cpp
@@ -396,7 +396,7 @@ bool cWSSAnvil::LoadChunkFromNBT(const cChunkCoords & a_Chunk, const cParsedNBT
 	}  // for y
 	//*/
 	
-	m_World->QueueSetChunkData(cSetChunkDataPtr(new cSetChunkData(
+	cSetChunkDataPtr SetChunkData(new cSetChunkData(
 		a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ,
 		BlockTypes, MetaData,
 		IsLightValid ? BlockLight : NULL,
@@ -404,7 +404,8 @@ bool cWSSAnvil::LoadChunkFromNBT(const cChunkCoords & a_Chunk, const cParsedNBT
 		NULL, Biomes,
 		Entities, BlockEntities,
 		false
-	)));
+	));
+	m_World->QueueSetChunkData(SetChunkData);
 	return true;
 }
 
@@ -581,64 +582,32 @@ void cWSSAnvil::LoadBlockEntitiesFromNBT(cBlockEntityList & a_BlockEntities, con
 		{
 			continue;
 		}
-		int sID = a_NBT.FindChildByName(Child, "id");
-		if (sID < 0)
+
+		// Get the BlockEntity's position
+		int x, y, z;
+		if (!GetBlockEntityNBTPos(a_NBT, Child, x, y, z))
 		{
+			LOGWARNING("Bad block entity, missing the coords. Will be ignored.");
 			continue;
 		}
-		if (strncmp(a_NBT.GetData(sID), "Beacon", a_NBT.GetDataLength(sID)) == 0)
-		{
-			LoadBeaconFromNBT(a_BlockEntities, a_NBT, Child);
-		}
-		else if (strncmp(a_NBT.GetData(sID), "Chest", a_NBT.GetDataLength(sID)) == 0)
-		{
-			LoadChestFromNBT(a_BlockEntities, a_NBT, Child, E_BLOCK_CHEST);
-		}
-		else if (strncmp(a_NBT.GetData(sID), "Control", a_NBT.GetDataLength(sID)) == 0)
-		{
-			LoadCommandBlockFromNBT(a_BlockEntities, a_NBT, Child);
-		}
-		else if (strncmp(a_NBT.GetData(sID), "Dropper", a_NBT.GetDataLength(sID)) == 0)
-		{
-			LoadDropperFromNBT(a_BlockEntities, a_NBT, Child);
-		}
-		else if (strncmp(a_NBT.GetData(sID), "FlowerPot", a_NBT.GetDataLength(sID)) == 0)
-		{
-			LoadFlowerPotFromNBT(a_BlockEntities, a_NBT, Child);
-		}
-		else if (strncmp(a_NBT.GetData(sID), "Furnace", a_NBT.GetDataLength(sID)) == 0)
-		{
-			LoadFurnaceFromNBT(a_BlockEntities, a_NBT, Child, a_BlockTypes, a_BlockMetas);
-		}
-		else if (strncmp(a_NBT.GetData(sID), "Hopper", a_NBT.GetDataLength(sID)) == 0)
-		{
-			LoadHopperFromNBT(a_BlockEntities, a_NBT, Child);
-		}
-		else if (strncmp(a_NBT.GetData(sID), "Music", a_NBT.GetDataLength(sID)) == 0)
-		{
-			LoadNoteFromNBT(a_BlockEntities, a_NBT, Child);
-		}
-		else if (strncmp(a_NBT.GetData(sID), "RecordPlayer", a_NBT.GetDataLength(sID)) == 0)
-		{
-			LoadJukeboxFromNBT(a_BlockEntities, a_NBT, Child);
-		}
-		else if (strncmp(a_NBT.GetData(sID), "Sign", a_NBT.GetDataLength(sID)) == 0)
-		{
-			LoadSignFromNBT(a_BlockEntities, a_NBT, Child);
-		}
-		else if (strncmp(a_NBT.GetData(sID), "Skull", a_NBT.GetDataLength(sID)) == 0)
-		{
-			LoadMobHeadFromNBT(a_BlockEntities, a_NBT, Child);
-		}
-		else if (strncmp(a_NBT.GetData(sID), "Trap", a_NBT.GetDataLength(sID)) == 0)
+		int RelX = x, RelY = y, RelZ = z, ChunkX, ChunkZ;
+		cChunkDef::AbsoluteToRelative(RelX, RelY, RelZ, ChunkX, ChunkZ);
+		if (RelY == 2)
 		{
-			LoadDispenserFromNBT(a_BlockEntities, a_NBT, Child);
+			LOGD("HERE");
 		}
-		else if (strncmp(a_NBT.GetData(sID), "TrappedChest", a_NBT.GetDataLength(sID)) == 0)
+
+		// Load the proper BlockEntity type based on the block type:
+		BLOCKTYPE BlockType = cChunkDef::GetBlock(a_BlockTypes, RelX, RelY, RelZ);
+		NIBBLETYPE BlockMeta = cChunkDef::GetNibble(a_BlockMetas, RelX, RelY, RelZ);
+		std::auto_ptr<cBlockEntity> be(LoadBlockEntityFromNBT(a_NBT, Child, x, y, z, BlockType, BlockMeta));
+		if (be.get() == NULL)
 		{
-			LoadChestFromNBT(a_BlockEntities, a_NBT, Child, E_BLOCK_TRAPPED_CHEST);
+			continue;
 		}
-		// TODO: Other block entities
+
+		// Add the BlockEntity to the loaded data:
+		a_BlockEntities.push_back(be.release());
 	}  // for Child - tag children
 }
 
@@ -646,6 +615,52 @@ void cWSSAnvil::LoadBlockEntitiesFromNBT(cBlockEntityList & a_BlockEntities, con
 
 
 
+cBlockEntity * cWSSAnvil::LoadBlockEntityFromNBT(const cParsedNBT & a_NBT, int a_Tag, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta)
+{
+	// Load the specific BlockEntity type:
+	switch (a_BlockType)
+	{
+		// Specific entity loaders:
+		case E_BLOCK_BEACON:        return LoadBeaconFromNBT      (a_NBT, a_Tag, a_BlockX, a_BlockY, a_BlockZ);
+		case E_BLOCK_CHEST:         return LoadChestFromNBT       (a_NBT, a_Tag, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_CHEST);
+		case E_BLOCK_COMMAND_BLOCK: return LoadCommandBlockFromNBT(a_NBT, a_Tag, a_BlockX, a_BlockY, a_BlockZ);
+		case E_BLOCK_DISPENSER:     return LoadDispenserFromNBT   (a_NBT, a_Tag, a_BlockX, a_BlockY, a_BlockZ);
+		case E_BLOCK_DROPPER:       return LoadDropperFromNBT     (a_NBT, a_Tag, a_BlockX, a_BlockY, a_BlockZ);
+		case E_BLOCK_FLOWER_POT:    return LoadFlowerPotFromNBT   (a_NBT, a_Tag, a_BlockX, a_BlockY, a_BlockZ);
+		case E_BLOCK_FURNACE:       return LoadFurnaceFromNBT     (a_NBT, a_Tag, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_FURNACE, a_BlockMeta);
+		case E_BLOCK_HEAD:          return LoadMobHeadFromNBT     (a_NBT, a_Tag, a_BlockX, a_BlockY, a_BlockZ);
+		case E_BLOCK_HOPPER:        return LoadHopperFromNBT      (a_NBT, a_Tag, a_BlockX, a_BlockY, a_BlockZ);
+		case E_BLOCK_JUKEBOX:       return LoadJukeboxFromNBT     (a_NBT, a_Tag, a_BlockX, a_BlockY, a_BlockZ);
+		case E_BLOCK_LIT_FURNACE:   return LoadFurnaceFromNBT     (a_NBT, a_Tag, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_LIT_FURNACE, a_BlockMeta);
+		case E_BLOCK_NOTE_BLOCK:    return LoadNoteBlockFromNBT   (a_NBT, a_Tag, a_BlockX, a_BlockY, a_BlockZ);
+		case E_BLOCK_SIGN_POST:     return LoadSignFromNBT        (a_NBT, a_Tag, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_SIGN_POST);
+		case E_BLOCK_TRAPPED_CHEST: return LoadChestFromNBT       (a_NBT, a_Tag, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_TRAPPED_CHEST);
+		case E_BLOCK_WALLSIGN:      return LoadSignFromNBT        (a_NBT, a_Tag, a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_WALLSIGN);
+
+		// Blocktypes that have block entities but don't load their contents from disk:
+		case E_BLOCK_ENDER_CHEST:   return NULL;
+	}
+
+	// All the other blocktypes should have no entities assigned to them. Report an error:
+	// Get the "id" tag:
+	int TagID = a_NBT.FindChildByName(a_Tag, "id");
+	AString TypeName("<unknown>");
+	if (TagID >= 0)
+	{
+		TypeName.assign(a_NBT.GetData(TagID), (size_t)a_NBT.GetDataLength(TagID));
+	}
+	LOGINFO("WorldLoader(%s): Block entity mismatch: block type %s (%d), type \"%s\", at {%d, %d, %d}; the entity will be lost.",
+		m_World->GetName().c_str(),
+		ItemTypeToString(a_BlockType).c_str(), a_BlockType, TypeName.c_str(),
+		a_BlockX, a_BlockY, a_BlockZ
+	);
+	return NULL;
+}
+
+
+
+
+
 bool cWSSAnvil::LoadItemFromNBT(cItem & a_Item, const cParsedNBT & a_NBT, int a_TagIdx)
 {
 	int Type = a_NBT.FindChildByName(a_TagIdx, "id");
@@ -656,7 +671,6 @@ bool cWSSAnvil::LoadItemFromNBT(cItem & a_Item, const cParsedNBT & a_NBT, int a_
 	a_Item.m_ItemType = a_NBT.GetShort(Type);
 	if (a_Item.m_ItemType < 0)
 	{
-		LOGD("Encountered an item with negative type (%d). Replacing with an empty item.", a_NBT.GetShort(Type));
 		a_Item.Empty();
 		return true;
 	}
@@ -754,16 +768,46 @@ void cWSSAnvil::LoadItemGridFromNBT(cItemGrid & a_ItemGrid, const cParsedNBT & a
 
 
 
-void cWSSAnvil::LoadBeaconFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx)
+bool cWSSAnvil::CheckBlockEntityType(const cParsedNBT & a_NBT, int a_TagIdx, const char * a_ExpectedType)
 {
-	ASSERT(a_NBT.GetType(a_TagIdx) == TAG_Compound);
-	int x, y, z;
-	if (!GetBlockEntityNBTPos(a_NBT, a_TagIdx, x, y, z))
+	// Check if the given tag is a compound:
+	if (a_NBT.GetType(a_TagIdx) != TAG_Compound)
 	{
-		return;
+		return false;
 	}
 
-	std::auto_ptr<cBeaconEntity> Beacon(new cBeaconEntity(x, y, z, m_World));
+	// Get the "id" tag:
+	int TagID = a_NBT.FindChildByName(a_TagIdx, "id");
+	if (TagID < 0)
+	{
+		return false;
+	}
+
+	// Compare the value:
+	if (strncmp(a_NBT.GetData(TagID), a_ExpectedType, (size_t)a_NBT.GetDataLength(TagID)) == 0)
+	{
+		return true;
+	}
+	LOGWARNING("Block entity type mismatch: exp \"%s\", got \"%s\".",
+		a_ExpectedType,
+		AString(a_NBT.GetData(TagID), (size_t)a_NBT.GetDataLength(TagID)).c_str()
+	);
+	return false;
+}
+
+
+
+
+
+cBlockEntity * cWSSAnvil::LoadBeaconFromNBT(const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ)
+{
+	// Check if the data has a proper type:
+	if (!CheckBlockEntityType(a_NBT, a_TagIdx, "Beacon"))
+	{
+		return NULL;
+	}
+
+	std::auto_ptr<cBeaconEntity> Beacon(new cBeaconEntity(a_BlockX, a_BlockY, a_BlockZ, m_World));
 
 	int CurrentLine = a_NBT.FindChildByName(a_TagIdx, "Levels");
 	if (CurrentLine >= 0)
@@ -790,88 +834,128 @@ void cWSSAnvil::LoadBeaconFromNBT(cBlockEntityList & a_BlockEntities, const cPar
 		LoadItemGridFromNBT(Beacon->GetContents(), a_NBT, Items);
 	}
 
-	a_BlockEntities.push_back(Beacon.release());
+	return Beacon.release();
 }
 
 
 
 
 
-void cWSSAnvil::LoadChestFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE a_ChestType)
+cBlockEntity * cWSSAnvil::LoadChestFromNBT(const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_ChestBlockType)
 {
-	ASSERT(a_NBT.GetType(a_TagIdx) == TAG_Compound);
-	int x, y, z;
-	if (!GetBlockEntityNBTPos(a_NBT, a_TagIdx, x, y, z))
+	// Check if the data has a proper type:
+	// TODO: Does vanilla use "TrappedChest" or not? MCWiki says no, but previous code says yes
+	// Ref.: http://minecraft.gamepedia.com/Trapped_Chest
+	//       https://github.com/mc-server/MCServer/blob/d0551e2e0a98a28f31a88d489d17b408e4a7d38d/src/WorldStorage/WSSAnvil.cpp#L637
+	if (!CheckBlockEntityType(a_NBT, a_TagIdx, "Chest") && !CheckBlockEntityType(a_NBT, a_TagIdx, "TrappedChest"))
 	{
-		return;
+		return NULL;
 	}
+
 	int Items = a_NBT.FindChildByName(a_TagIdx, "Items");
 	if ((Items < 0) || (a_NBT.GetType(Items) != TAG_List))
 	{
-		return;  // Make it an empty chest - the chunk loader will provide an empty cChestEntity for this
+		return NULL;  // Make it an empty chest - the chunk loader will provide an empty cChestEntity for this
 	}
-	std::auto_ptr<cChestEntity> Chest(new cChestEntity(x, y, z, m_World, a_ChestType));
+	std::auto_ptr<cChestEntity> Chest(new cChestEntity(a_BlockX, a_BlockY, a_BlockZ, m_World, a_ChestBlockType));
 	LoadItemGridFromNBT(Chest->GetContents(), a_NBT, Items);
-	a_BlockEntities.push_back(Chest.release());
+	return Chest.release();
 }
 
 
 
 
 
-void cWSSAnvil::LoadDispenserFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx)
+cBlockEntity * cWSSAnvil::LoadCommandBlockFromNBT(const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ)
 {
-	ASSERT(a_NBT.GetType(a_TagIdx) == TAG_Compound);
-	int x, y, z;
-	if (!GetBlockEntityNBTPos(a_NBT, a_TagIdx, x, y, z))
+	// Check if the data has a proper type:
+	if (!CheckBlockEntityType(a_NBT, a_TagIdx, "Control"))
 	{
-		return;
+		return NULL;
+	}
+
+	std::auto_ptr<cCommandBlockEntity> CmdBlock(new cCommandBlockEntity(a_BlockX, a_BlockY, a_BlockZ, m_World));
+
+	int currentLine = a_NBT.FindChildByName(a_TagIdx, "Command");
+	if (currentLine >= 0)
+	{
+		CmdBlock->SetCommand(a_NBT.GetString(currentLine));
+	}
+
+	currentLine = a_NBT.FindChildByName(a_TagIdx, "SuccessCount");
+	if (currentLine >= 0)
+	{
+		CmdBlock->SetResult(a_NBT.GetInt(currentLine));
+	}
+
+	currentLine = a_NBT.FindChildByName(a_TagIdx, "LastOutput");
+	if (currentLine >= 0)
+	{
+		CmdBlock->SetLastOutput(a_NBT.GetString(currentLine));
+	}
+
+	// TODO 2014-01-18 xdot: Figure out what TrackOutput is and parse it.
+
+	return CmdBlock.release();
+}
+
+
+
+
+
+cBlockEntity * cWSSAnvil::LoadDispenserFromNBT(const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ)
+{
+	// Check if the data has a proper type:
+	if (!CheckBlockEntityType(a_NBT, a_TagIdx, "Trap"))
+	{
+		return NULL;
 	}
+
 	int Items = a_NBT.FindChildByName(a_TagIdx, "Items");
 	if ((Items < 0) || (a_NBT.GetType(Items) != TAG_List))
 	{
-		return;  // Make it an empty dispenser - the chunk loader will provide an empty cDispenserEntity for this
+		return NULL;  // Make it an empty dispenser - the chunk loader will provide an empty cDispenserEntity for this
 	}
-	std::auto_ptr<cDispenserEntity> Dispenser(new cDispenserEntity(x, y, z, m_World));
+	std::auto_ptr<cDispenserEntity> Dispenser(new cDispenserEntity(a_BlockX, a_BlockY, a_BlockZ, m_World));
 	LoadItemGridFromNBT(Dispenser->GetContents(), a_NBT, Items);
-	a_BlockEntities.push_back(Dispenser.release());
+	return Dispenser.release();
 }
 
 
 
 
 
-void cWSSAnvil::LoadDropperFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx)
+cBlockEntity * cWSSAnvil::LoadDropperFromNBT(const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ)
 {
-	ASSERT(a_NBT.GetType(a_TagIdx) == TAG_Compound);
-	int x, y, z;
-	if (!GetBlockEntityNBTPos(a_NBT, a_TagIdx, x, y, z))
+	// Check if the data has a proper type:
+	if (!CheckBlockEntityType(a_NBT, a_TagIdx, "Dropper"))
 	{
-		return;
+		return NULL;
 	}
+
 	int Items = a_NBT.FindChildByName(a_TagIdx, "Items");
 	if ((Items < 0) || (a_NBT.GetType(Items) != TAG_List))
 	{
-		return;  // Make it an empty dropper - the chunk loader will provide an empty cDropperEntity for this
+		return NULL;  // Make it an empty dropper - the chunk loader will provide an empty cDropperEntity for this
 	}
-	std::auto_ptr<cDropperEntity> Dropper(new cDropperEntity(x, y, z, m_World));
+	std::auto_ptr<cDropperEntity> Dropper(new cDropperEntity(a_BlockX, a_BlockY, a_BlockZ, m_World));
 	LoadItemGridFromNBT(Dropper->GetContents(), a_NBT, Items);
-	a_BlockEntities.push_back(Dropper.release());
+	return Dropper.release();
 }
 
 
 
 
 
-void cWSSAnvil::LoadFlowerPotFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx)
+cBlockEntity * cWSSAnvil::LoadFlowerPotFromNBT(const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ)
 {
-	ASSERT(a_NBT.GetType(a_TagIdx) == TAG_Compound);
-	int x, y, z;
-	if (!GetBlockEntityNBTPos(a_NBT, a_TagIdx, x, y, z))
+	// Check if the data has a proper type:
+	if (!CheckBlockEntityType(a_NBT, a_TagIdx, "FlowerPot"))
 	{
-		return;
+		return NULL;
 	}
-	std::auto_ptr<cFlowerPotEntity> FlowerPot(new cFlowerPotEntity(x, y, z, m_World));
+
+	std::auto_ptr<cFlowerPotEntity> FlowerPot(new cFlowerPotEntity(a_BlockX, a_BlockY, a_BlockZ, m_World));
 	short ItemType = 0, ItemData = 0;
 
 	int currentLine = a_NBT.FindChildByName(a_TagIdx, "Item");
@@ -887,37 +971,28 @@ void cWSSAnvil::LoadFlowerPotFromNBT(cBlockEntityList & a_BlockEntities, const c
 	}
 
 	FlowerPot->SetItem(cItem(ItemType, 1, ItemData));
-	a_BlockEntities.push_back(FlowerPot.release());
+	return FlowerPot.release();
 }
 
 
 
 
 
-void cWSSAnvil::LoadFurnaceFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE * a_BlockTypes, NIBBLETYPE * a_BlockMetas)
+cBlockEntity * cWSSAnvil::LoadFurnaceFromNBT(const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta)
 {
-	ASSERT(a_NBT.GetType(a_TagIdx) == TAG_Compound);
-	int x, y, z;
-	if (!GetBlockEntityNBTPos(a_NBT, a_TagIdx, x, y, z))
+	// Check if the data has a proper type:
+	if (!CheckBlockEntityType(a_NBT, a_TagIdx, "Furnace"))
 	{
-		return;
+		return NULL;
 	}
+
 	int Items = a_NBT.FindChildByName(a_TagIdx, "Items");
 	if ((Items < 0) || (a_NBT.GetType(Items) != TAG_List))
 	{
-		return;  // Make it an empty furnace - the chunk loader will provide an empty cFurnaceEntity for this
+		return NULL;  // Make it an empty furnace - the chunk loader will provide an empty cFurnaceEntity for this
 	}
 	
-	// Convert coords to relative:
-	int RelX = x;
-	int RelZ = z;
-	int ChunkX, ChunkZ;
-	cChunkDef::AbsoluteToRelative(RelX, y, RelZ, ChunkX, ChunkZ);
-	
-	// Create the furnace entity, with proper BlockType and BlockMeta info:
-	BLOCKTYPE  BlockType = cChunkDef::GetBlock(a_BlockTypes, RelX, y, RelZ);
-	NIBBLETYPE BlockMeta = cChunkDef::GetNibble(a_BlockMetas, RelX, y, RelZ);
-	std::auto_ptr<cFurnaceEntity> Furnace(new cFurnaceEntity(x, y, z, BlockType, BlockMeta, m_World));
+	std::auto_ptr<cFurnaceEntity> Furnace(new cFurnaceEntity(a_BlockX, a_BlockY, a_BlockZ, a_BlockType, a_BlockMeta, m_World));
 	
 	// Load slots:
 	for (int Child = a_NBT.GetFirstChild(Items); Child != -1; Child = a_NBT.GetNextSibling(Child))
@@ -954,184 +1029,147 @@ void cWSSAnvil::LoadFurnaceFromNBT(cBlockEntityList & a_BlockEntities, const cPa
 	
 	// Restart cooking:
 	Furnace->ContinueCooking();
-	a_BlockEntities.push_back(Furnace.release());
+	return Furnace.release();
 }
 
 
 
 
 
-void cWSSAnvil::LoadHopperFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx)
+cBlockEntity * cWSSAnvil::LoadHopperFromNBT(const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ)
 {
-	ASSERT(a_NBT.GetType(a_TagIdx) == TAG_Compound);
-	int x, y, z;
-	if (!GetBlockEntityNBTPos(a_NBT, a_TagIdx, x, y, z))
+	// Check if the data has a proper type:
+	if (!CheckBlockEntityType(a_NBT, a_TagIdx, "Hopper"))
 	{
-		return;
+		return NULL;
 	}
+
 	int Items = a_NBT.FindChildByName(a_TagIdx, "Items");
 	if ((Items < 0) || (a_NBT.GetType(Items) != TAG_List))
 	{
-		return;  // Make it an empty hopper - the chunk loader will provide an empty cHopperEntity for this
+		return NULL;  // Make it an empty hopper - the chunk loader will provide an empty cHopperEntity for this
 	}
-	std::auto_ptr<cHopperEntity> Hopper(new cHopperEntity(x, y, z, m_World));
+	std::auto_ptr<cHopperEntity> Hopper(new cHopperEntity(a_BlockX, a_BlockY, a_BlockZ, m_World));
 	LoadItemGridFromNBT(Hopper->GetContents(), a_NBT, Items);
-	a_BlockEntities.push_back(Hopper.release());
+	return Hopper.release();
 }
 
 
 
 
 
-void cWSSAnvil::LoadJukeboxFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx)
+cBlockEntity * cWSSAnvil::LoadJukeboxFromNBT(const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ)
 {
-	ASSERT(a_NBT.GetType(a_TagIdx) == TAG_Compound);
-	int x, y, z;
-	if (!GetBlockEntityNBTPos(a_NBT, a_TagIdx, x, y, z))
+	// Check if the data has a proper type:
+	if (!CheckBlockEntityType(a_NBT, a_TagIdx, "RecordPlayer"))
 	{
-		return;
+		return NULL;
 	}
-	std::auto_ptr<cJukeboxEntity> Jukebox(new cJukeboxEntity(x, y, z, m_World));
+
+	std::auto_ptr<cJukeboxEntity> Jukebox(new cJukeboxEntity(a_BlockX, a_BlockY, a_BlockZ, m_World));
 	int Record = a_NBT.FindChildByName(a_TagIdx, "Record");
 	if (Record >= 0)
 	{
 		Jukebox->SetRecord(a_NBT.GetInt(Record));
 	}
-	a_BlockEntities.push_back(Jukebox.release());
-}
-
-
-
-
-
-void cWSSAnvil::LoadNoteFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx)
-{
-	ASSERT(a_NBT.GetType(a_TagIdx) == TAG_Compound);
-	int x, y, z;
-	if (!GetBlockEntityNBTPos(a_NBT, a_TagIdx, x, y, z))
-	{
-		return;
-	}
-	std::auto_ptr<cNoteEntity> Note(new cNoteEntity(x, y, z, m_World));
-	int note = a_NBT.FindChildByName(a_TagIdx, "note");
-	if (note >= 0)
-	{
-		Note->SetPitch(a_NBT.GetByte(note));
-	}
-	a_BlockEntities.push_back(Note.release());
+	return Jukebox.release();
 }
 
 
 
 
 
-void cWSSAnvil::LoadSignFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx)
+cBlockEntity * cWSSAnvil::LoadMobHeadFromNBT(const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ)
 {
-	ASSERT(a_NBT.GetType(a_TagIdx) == TAG_Compound);
-	int x, y, z;
-	if (!GetBlockEntityNBTPos(a_NBT, a_TagIdx, x, y, z))
+	// Check if the data has a proper type:
+	if (!CheckBlockEntityType(a_NBT, a_TagIdx, "Skull"))
 	{
-		return;
+		return NULL;
 	}
-	std::auto_ptr<cSignEntity> Sign(new cSignEntity(E_BLOCK_SIGN_POST, x, y, z, m_World));
 
-	int currentLine = a_NBT.FindChildByName(a_TagIdx, "Text1");
-	if (currentLine >= 0)
-	{
-		Sign->SetLine(0, a_NBT.GetString(currentLine));
-	}
+	std::auto_ptr<cMobHeadEntity> MobHead(new cMobHeadEntity(a_BlockX, a_BlockY, a_BlockZ, m_World));
 
-	currentLine = a_NBT.FindChildByName(a_TagIdx, "Text2");
+	int currentLine = a_NBT.FindChildByName(a_TagIdx, "SkullType");
 	if (currentLine >= 0)
 	{
-		Sign->SetLine(1, a_NBT.GetString(currentLine));
+		MobHead->SetType(static_cast<eMobHeadType>(a_NBT.GetByte(currentLine)));
 	}
 
-	currentLine = a_NBT.FindChildByName(a_TagIdx, "Text3");
+	currentLine = a_NBT.FindChildByName(a_TagIdx, "Rot");
 	if (currentLine >= 0)
 	{
-		Sign->SetLine(2, a_NBT.GetString(currentLine));
+		MobHead->SetRotation(static_cast<eMobHeadRotation>(a_NBT.GetByte(currentLine)));
 	}
 
-	currentLine = a_NBT.FindChildByName(a_TagIdx, "Text4");
+	currentLine = a_NBT.FindChildByName(a_TagIdx, "ExtraType");
 	if (currentLine >= 0)
 	{
-		Sign->SetLine(3, a_NBT.GetString(currentLine));
+		MobHead->SetOwner(a_NBT.GetString(currentLine));
 	}
 
-	a_BlockEntities.push_back(Sign.release());
+	return MobHead.release();
 }
 
 
 
 
 
-void cWSSAnvil::LoadMobHeadFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx)
+cBlockEntity * cWSSAnvil::LoadNoteBlockFromNBT(const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ)
 {
-	ASSERT(a_NBT.GetType(a_TagIdx) == TAG_Compound);
-	int x, y, z;
-	if (!GetBlockEntityNBTPos(a_NBT, a_TagIdx, x, y, z))
-	{
-		return;
-	}
-	std::auto_ptr<cMobHeadEntity> MobHead(new cMobHeadEntity(x, y, z, m_World));
-
-	int currentLine = a_NBT.FindChildByName(a_TagIdx, "SkullType");
-	if (currentLine >= 0)
+	// Check if the data has a proper type:
+	if (!CheckBlockEntityType(a_NBT, a_TagIdx, "Music"))
 	{
-		MobHead->SetType(static_cast<eMobHeadType>(a_NBT.GetByte(currentLine)));
+		return NULL;
 	}
 
-	currentLine = a_NBT.FindChildByName(a_TagIdx, "Rot");
-	if (currentLine >= 0)
+	std::auto_ptr<cNoteEntity> NoteBlock(new cNoteEntity(a_BlockX, a_BlockY, a_BlockZ, m_World));
+	int note = a_NBT.FindChildByName(a_TagIdx, "note");
+	if (note >= 0)
 	{
-		MobHead->SetRotation(static_cast<eMobHeadRotation>(a_NBT.GetByte(currentLine)));
+		NoteBlock->SetPitch(a_NBT.GetByte(note));
 	}
-
-	currentLine = a_NBT.FindChildByName(a_TagIdx, "ExtraType");
-	if (currentLine >= 0)
-	{
-		MobHead->SetOwner(a_NBT.GetString(currentLine));
-	}
-
-	a_BlockEntities.push_back(MobHead.release());
+	return NoteBlock.release();
 }
 
 
 
 
 
-void cWSSAnvil::LoadCommandBlockFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx)
+cBlockEntity * cWSSAnvil::LoadSignFromNBT(const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType)
 {
-	ASSERT(a_NBT.GetType(a_TagIdx) == TAG_Compound);
-	int x, y, z;
-	if (!GetBlockEntityNBTPos(a_NBT, a_TagIdx, x, y, z))
+	// Check if the data has a proper type:
+	if (!CheckBlockEntityType(a_NBT, a_TagIdx, "Sign"))
 	{
-		return;
+		return NULL;
 	}
-	std::auto_ptr<cCommandBlockEntity> CmdBlock(new cCommandBlockEntity(x, y, z, m_World));
 
-	int currentLine = a_NBT.FindChildByName(a_TagIdx, "Command");
+	std::auto_ptr<cSignEntity> Sign(new cSignEntity(a_BlockType, a_BlockX, a_BlockY, a_BlockZ, m_World));
+
+	int currentLine = a_NBT.FindChildByName(a_TagIdx, "Text1");
 	if (currentLine >= 0)
 	{
-		CmdBlock->SetCommand(a_NBT.GetString(currentLine));
+		Sign->SetLine(0, a_NBT.GetString(currentLine));
 	}
 
-	currentLine = a_NBT.FindChildByName(a_TagIdx, "SuccessCount");
+	currentLine = a_NBT.FindChildByName(a_TagIdx, "Text2");
 	if (currentLine >= 0)
 	{
-		CmdBlock->SetResult(a_NBT.GetInt(currentLine));
+		Sign->SetLine(1, a_NBT.GetString(currentLine));
 	}
 
-	currentLine = a_NBT.FindChildByName(a_TagIdx, "LastOutput");
+	currentLine = a_NBT.FindChildByName(a_TagIdx, "Text3");
 	if (currentLine >= 0)
 	{
-		CmdBlock->SetLastOutput(a_NBT.GetString(currentLine));
+		Sign->SetLine(2, a_NBT.GetString(currentLine));
 	}
 
-	// TODO 2014-01-18 xdot: Figure out what TrackOutput is and parse it.
+	currentLine = a_NBT.FindChildByName(a_TagIdx, "Text4");
+	if (currentLine >= 0)
+	{
+		Sign->SetLine(3, a_NBT.GetString(currentLine));
+	}
 
-	a_BlockEntities.push_back(CmdBlock.release());
+	return Sign.release();
 }
 
 
diff --git a/src/WorldStorage/WSSAnvil.h b/src/WorldStorage/WSSAnvil.h
index a41268f4c..591ec6757 100644
--- a/src/WorldStorage/WSSAnvil.h
+++ b/src/WorldStorage/WSSAnvil.h
@@ -125,6 +125,10 @@ protected:
 	/// Loads the chunk's BlockEntities from NBT data (a_Tag is the Level\\TileEntities list tag; may be -1)
 	void LoadBlockEntitiesFromNBT(cBlockEntityList & a_BlockEntitites, const cParsedNBT & a_NBT, int a_Tag, BLOCKTYPE * a_BlockTypes, NIBBLETYPE * a_BlockMetas);
 	
+	/** Loads the data for a block entity from the specified NBT tag.
+	Returns the loaded block entity, or NULL upon failure. */
+	cBlockEntity * LoadBlockEntityFromNBT(const cParsedNBT & a_NBT, int a_Tag, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta);
+
 	/// Loads a cItem contents from the specified NBT tag; returns true if successful. Doesn't load the Slot tag
 	bool LoadItemFromNBT(cItem & a_Item, const cParsedNBT & a_NBT, int a_TagIdx);
 	
@@ -134,18 +138,21 @@ protected:
 	*/
 	void LoadItemGridFromNBT(cItemGrid & a_ItemGrid, const cParsedNBT & a_NBT, int a_ItemsTagIdx, int s_SlotOffset = 0);
 	
-	void LoadBeaconFromNBT      (cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx);
-	void LoadChestFromNBT       (cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE a_ChestType);
-	void LoadDispenserFromNBT   (cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx);
-	void LoadDropperFromNBT     (cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx);
-	void LoadFlowerPotFromNBT   (cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx);
-	void LoadFurnaceFromNBT     (cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE * a_BlockTypes, NIBBLETYPE * a_BlockMetas);
-	void LoadHopperFromNBT      (cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx);
-	void LoadJukeboxFromNBT     (cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx);
-	void LoadNoteFromNBT        (cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx);
-	void LoadSignFromNBT        (cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx);
-	void LoadMobHeadFromNBT     (cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx);
-	void LoadCommandBlockFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx);
+	/** Returns true iff the "id" child tag inside the specified tag equals the specified expected type. */
+	bool CheckBlockEntityType(const cParsedNBT & a_NBT, int a_TagIdx, const char * a_ExpectedType);
+
+	cBlockEntity * LoadBeaconFromNBT      (const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ);
+	cBlockEntity * LoadChestFromNBT       (const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_ChestBlockType);
+	cBlockEntity * LoadCommandBlockFromNBT(const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ);
+	cBlockEntity * LoadDispenserFromNBT   (const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ);
+	cBlockEntity * LoadDropperFromNBT     (const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ);
+	cBlockEntity * LoadFlowerPotFromNBT   (const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ);
+	cBlockEntity * LoadFurnaceFromNBT     (const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta);
+	cBlockEntity * LoadHopperFromNBT      (const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ);
+	cBlockEntity * LoadJukeboxFromNBT     (const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ);
+	cBlockEntity * LoadMobHeadFromNBT     (const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ);
+	cBlockEntity * LoadNoteBlockFromNBT   (const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ);
+	cBlockEntity * LoadSignFromNBT        (const cParsedNBT & a_NBT, int a_TagIdx, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_SignBlockType);
 	
 	void LoadEntityFromNBT(cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_EntityTagIdx, const char * a_IDTag, size_t a_IDTagLength);