14 files changed, 157 insertions, 79 deletions

diff --git a/MCServer/Plugins/APIDump/main.css b/MCServer/Plugins/APIDump/main.css
index aa26bd186..8041e0d01 100644
--- a/MCServer/Plugins/APIDump/main.css
+++ b/MCServer/Plugins/APIDump/main.css
@@ -39,7 +39,8 @@ pre
 
 body
 {
-	min-width: 800px;
+	min-width: 400px;
+	max-width: 1200px;
 	width: 95%;
 	margin: 10px auto;
 	background-color: white;
diff --git a/MCServer/Plugins/Core b/MCServer/Plugins/Core
-Subproject 5c8557d4fdfa580c100510cde07a1a778ea2e24
+Subproject 3790f78d3f7503ff33a423b8e73e81a27556278
diff --git a/README.md b/README.md
index a16062574..e6d9492f0 100644
--- a/README.md
+++ b/README.md
@@ -1,38 +1,39 @@
-MCServer
+MCServer [![Build Status](http://img.shields.io/travis/mc-server/MCServer.svg)](https://travis-ci.org/mc-server/MCServer) [![Support via Gittip](http://img.shields.io/gittip/mcs_team.svg)](https://www.gittip.com/mcs_team) [![tip for next commit](http://tip4commit.com/projects/74.svg)](http://tip4commit.com/projects/74)
 ========
 
-**Current Protocol Supported:** Minecraft v1.2 -> v1.7
-
-MCServer is a performant C++ Minecraft server designed for use in memory and cpu-limited places, or just to make regular server perform better.
+MCServer is a Minecraft server that is written in C++ and designed to be efficient with memory and CPU, as well as having a flexible Lua Plugin API.
 
 MCServer can run on PCs, Macs, and *nix. This includes android phones and tablets as well as Raspberry Pis. 
 
+We currently support the protocol from Minecraft 1.2 all the way up to Minecraft 1.7.9.
+
 Installation
 ------------
 
-To install MCServer, you can either download the repository and compile it, or download a pre-compiled version.
-
-If you've cloned the repository using Git, you need to pull down the submodules (core plugins, some dependencies). This can be achieved with `git submodule init` and then on a regular basis (to keep up to date) `git submodule update`.
+Normally, you will want to download a pre-compiled version of MCServer from one of the buildservers:
 
-If you downloaded a ZIP file of the sources instead, you will need to download PolarSSL, too, from https://github.com/polarssl/polarssl , and unpack it into the `lib/polarssl` folder. You will also need to manually download all the plugins that you want included.
+ * [Linux and Raspberry Pi](http://ci.bearbin.net) (Bearbin's CI Server)
+ * [Windows](http://mc-server.xoft.cz) (xoft's nightly build service)
 
-Compilation instructions are available in the COMPILING file.
+You simply need to download and extract these files before you can use the server. 
 
-Linux builds can be downloaded from [Bearbin's CI Service](http://ci.bearbin.net) and Windows builds from xoft's [nightly build service](http://mc-server.xoft.cz).
-
-After you've extracted the files, simply run the MCServer executable.
+If you're a more advanced user, you may want to compile the server yourself for more performance. See the [COMPILING.md](https://github.com/mc-server/MCServer/blob/master/COMPILING.md) file for more details.
 
 Contributing
 ------------
 
 MCServer is licensed under the Apache license V2, and we welcome anybody to fork and submit a Pull Request back with their changes, and if you want to join as a permanent member we can add you to the team.
 
+Check out the [CONTRIBUTING.md](https://github.com/mc-server/MCServer/blob/master/CONTRIBUTING.md) file for more details.
+
 Other Stuff
 -----------
 
-For other stuff, including plugins and discussion, check the [forums](http://forum.mc-server.org) and [wiki](http://wiki.mc-server.org/).
+For other stuff, including plugins and discussion, check the [forums](http://forum.mc-server.org) and [Plugin API](http://mc-server.xoft.cz/LuaAPI/).
 
 Earn bitcoins for commits or donate to reward the MCServer developers: [![tip for next commit](http://tip4commit.com/projects/74.svg)](http://tip4commit.com/projects/74)
 
-Travis CI: [![Build Status](https://travis-ci.org/mc-server/MCServer.png?branch=master)](https://travis-ci.org/mc-server/MCServer)
+Support Us on Gittip: [![Support via Gittip](http://img.shields.io/gittip/mcs_team.svg)](https://www.gittip.com/mcs_team)
+
+Travis CI: [![Build Status](http://img.shields.io/travis/mc-server/MCServer.svg)](https://travis-ci.org/mc-server/MCServer)
 
diff --git a/src/ClientHandle.cpp b/src/ClientHandle.cpp
index 83b21ae3c..9b03bead9 100644
--- a/src/ClientHandle.cpp
+++ b/src/ClientHandle.cpp
@@ -1391,28 +1391,8 @@ void cClientHandle::HandlePlayerLook(float a_Rotation, float a_Pitch, bool a_IsO
 
 void cClientHandle::HandlePlayerMoveLook(double a_PosX, double a_PosY, double a_PosZ, double a_Stance, float a_Rotation, float a_Pitch, bool a_IsOnGround)
 {
-	if ((m_Player == NULL) || (m_State != csPlaying))
-	{
-		// The client hasn't been spawned yet and sends nonsense, we know better
-		return;
-	}
-
-	/*
-	// TODO: Invalid stance check
-	if ((a_PosY >= a_Stance) || (a_Stance > a_PosY + 1.65))
-	{
-		LOGD("Invalid stance");
-		SendPlayerMoveLook();
-		return;
-	}
-	*/
-	
-	m_Player->MoveTo(Vector3d(a_PosX, a_PosY, a_PosZ));
-	m_Player->SetStance     (a_Stance);
-	m_Player->SetTouchGround(a_IsOnGround);
-	m_Player->SetHeadYaw    (a_Rotation);
-	m_Player->SetYaw        (a_Rotation);
-	m_Player->SetPitch      (a_Pitch);
+	HandlePlayerLook(a_Rotation, a_Pitch, a_IsOnGround);
+	HandlePlayerPos(a_PosX, a_PosY, a_PosZ, a_Stance, a_IsOnGround);
 }
 
 
diff --git a/src/ClientHandle.h b/src/ClientHandle.h
index 9f1245be5..659c67658 100644
--- a/src/ClientHandle.h
+++ b/src/ClientHandle.h
@@ -80,9 +80,9 @@ public:
 	static AString GenerateOfflineUUID(const AString & a_Username);  // tolua_export
 	
 	/** Formats the type of message with the proper color and prefix for sending to the client. **/
-	AString FormatMessageType(bool ShouldAppendChatPrefixes, eMessageType a_ChatPrefix, const AString & a_AdditionalData);
+	static AString FormatMessageType(bool ShouldAppendChatPrefixes, eMessageType a_ChatPrefix, const AString & a_AdditionalData);
 	
-	AString FormatChatPrefix(bool ShouldAppendChatPrefixes, AString a_ChatPrefixS, AString m_Color1, AString m_Color2);
+	static AString FormatChatPrefix(bool ShouldAppendChatPrefixes, AString a_ChatPrefixS, AString m_Color1, AString m_Color2);
 
 	void Kick(const AString & a_Reason);		// tolua_export
 	void Authenticate(const AString & a_Name, const AString & a_UUID);  // Called by cAuthenticator when the user passes authentication
diff --git a/src/CompositeChat.cpp b/src/CompositeChat.cpp
index c70ef1070..a3612983a 100644
--- a/src/CompositeChat.cpp
+++ b/src/CompositeChat.cpp
@@ -189,6 +189,15 @@ void cCompositeChat::AddSuggestCommandPart(const AString & a_Text, const AString
 
 
 
+void cCompositeChat::AddShowAchievementPart(const AString & a_PlayerName, const AString & a_Achievement, const AString & a_Style)
+{
+	m_Parts.push_back(new cShowAchievementPart(a_PlayerName, a_Achievement, a_Style));
+}
+
+
+
+
+
 void cCompositeChat::ParseText(const AString & a_ParseText)
 {
 	size_t len = a_ParseText.length();
@@ -290,9 +299,10 @@ void cCompositeChat::ParseText(const AString & a_ParseText)
 
 
 
-void cCompositeChat::SetMessageType(eMessageType a_MessageType)
+void cCompositeChat::SetMessageType(eMessageType a_MessageType, const AString & a_AdditionalMessageTypeData)
 {
 	m_MessageType = a_MessageType;
+	m_AdditionalMessageTypeData = a_AdditionalMessageTypeData;
 }
 
 
@@ -476,3 +486,16 @@ cCompositeChat::cSuggestCommandPart::cSuggestCommandPart(const AString & a_Text,
 
 
 
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cCompositeChat::cShowAchievementPart:
+
+cCompositeChat::cShowAchievementPart::cShowAchievementPart(const AString & a_PlayerName, const AString & a_Achievement, const AString & a_Style) :
+	super(ptShowAchievement, a_Achievement, a_Style),
+	m_PlayerName(a_PlayerName)
+{
+}
+
+
+
+
diff --git a/src/CompositeChat.h b/src/CompositeChat.h
index 5b9c5f612..1ad196f1d 100644
--- a/src/CompositeChat.h
+++ b/src/CompositeChat.h
@@ -38,6 +38,7 @@ public:
 		ptUrl,
 		ptRunCommand,
 		ptSuggestCommand,
+		ptShowAchievement,
 	} ;
 	
 	class cBasePart
@@ -46,6 +47,7 @@ public:
 		ePartType m_PartType;
 		AString m_Text;
 		AString m_Style;
+		AString m_AdditionalStyleData;
 		
 		cBasePart(ePartType a_PartType, const AString & a_Text, const AString & a_Style = "");
 		
@@ -106,6 +108,15 @@ public:
 	public:
 		cSuggestCommandPart(const AString & a_Text, const AString & a_Command, const AString & a_Style = "");
 	} ;
+
+	class cShowAchievementPart :
+		public cBasePart
+	{
+		typedef cBasePart super;
+	public:
+		AString m_PlayerName;
+		cShowAchievementPart(const AString & a_PlayerName, const AString & a_Achievement, const AString & a_Style = "");
+	} ;
 	
 	typedef std::vector<cBasePart *> cParts;
 	
@@ -148,13 +159,20 @@ public:
 	/** Adds a part that suggests a command (enters it into the chat message area, but doesn't send) when clicked.
 	The default style is underlined yellow text. */
 	void AddSuggestCommandPart(const AString & a_Text, const AString & a_SuggestedCommand, const AString & a_Style = "u@b");
+
+	/** Adds a part that fully formats a specified achievement using client translatable strings
+	Takes achievement name and player awarded to. Displays as {player} has earned the achievement {achievement_name}.
+	*/
+	void AddShowAchievementPart(const AString & a_PlayerName, const AString & a_Achievement, const AString & a_Style = "");
 	
 	/** Parses text into various parts, adds those.
 	Recognizes "http:" and "https:" URLs and @color-codes. */
 	void ParseText(const AString & a_ParseText);
 	
-	/** Sets the message type, which is indicated by prefixes added to the message when serializing. */
-	void SetMessageType(eMessageType a_MessageType);
+	/** Sets the message type, which is indicated by prefixes added to the message when serializing
+	Takes optional AdditionalMessageTypeData to set m_AdditionalMessageTypeData. See said variable for more documentation.
+	*/
+	void SetMessageType(eMessageType a_MessageType, const AString & a_AdditionalMessageTypeData = "");
 	
 	/** Adds the "underline" style to each part that is an URL. */
 	void UnderlineUrls(void);
@@ -163,6 +181,9 @@ public:
 
 	/** Returns the message type set previously by SetMessageType(). */
 	eMessageType GetMessageType(void) const { return m_MessageType; }
+
+	/** Returns additional data pertaining to message type, for example, the name of a mtPrivateMsg sender */
+	AString GetAdditionalMessageTypeData(void) const { return m_AdditionalMessageTypeData; }
 	
 	/** Returns the text from the parts that comprises the human-readable data.
 	Used for older protocols that don't support composite chat
@@ -184,6 +205,9 @@ protected:
 	/** The message type, as indicated by prefixes. */
 	eMessageType m_MessageType;
 	
+	/** Additional data pertaining to message type, for example, the name of a mtPrivateMsg sender */
+	AString m_AdditionalMessageTypeData;
+	
 	
 	/** Adds a_AddStyle to a_Style; overwrites the existing style if appropriate.
 	If the style already contains something that a_AddStyle overrides, it is erased first. */
diff --git a/src/Entities/Entity.cpp b/src/Entities/Entity.cpp
index 15f456332..1226a2319 100644
--- a/src/Entities/Entity.cpp
+++ b/src/Entities/Entity.cpp
@@ -1018,16 +1018,17 @@ void cEntity::TickInVoid(cChunk & a_Chunk)
 
 
 
-void cEntity::DetectCacti()
+void cEntity::DetectCacti(void)
 {
 	int X = POSX_TOINT, Y = POSY_TOINT, Z = POSZ_TOINT;
-	float w = m_Width / 2;
+	double w = m_Width / 2;
 	if (
-		(((X + 1) - GetPosX() < w) && (GetWorld()->GetBlock(X + 1, Y, Z) == E_BLOCK_CACTUS)) ||
-		(((GetPosX() - (X - 1)) - 1 < w) && (GetWorld()->GetBlock(X - 1, Y, Z) == E_BLOCK_CACTUS)) ||
+		((Y > 0) && (Y < cChunkDef::Height)) &&
+		((((X + 1) - GetPosX() < w) && (GetWorld()->GetBlock(X + 1, Y, Z) == E_BLOCK_CACTUS)) ||
+		((GetPosX() - X < w) && (GetWorld()->GetBlock(X - 1, Y, Z) == E_BLOCK_CACTUS)) ||
 		(((Z + 1) - GetPosZ() < w) && (GetWorld()->GetBlock(X, Y, Z + 1) == E_BLOCK_CACTUS)) ||
-		(((GetPosZ() - (Z - 1)) - 1 < w) && (GetWorld()->GetBlock(X, Y, Z - 1) == E_BLOCK_CACTUS)) ||
-		(((Y > 0) && (Y < cChunkDef::Height)) && ((GetPosY() - Y < 1) && (GetWorld()->GetBlock(X, Y, Z) == E_BLOCK_CACTUS)))
+		((GetPosZ() - Z < w) && (GetWorld()->GetBlock(X, Y, Z - 1) == E_BLOCK_CACTUS)) ||
+		(((GetPosY() - Y < 1) && (GetWorld()->GetBlock(X, Y, Z) == E_BLOCK_CACTUS))))
 		)
 	{
 		TakeDamage(dtCactusContact, NULL, 1, 0);
diff --git a/src/Entities/Player.cpp b/src/Entities/Player.cpp
index 0eacb67f9..0dfdcfd8b 100644
--- a/src/Entities/Player.cpp
+++ b/src/Entities/Player.cpp
@@ -377,7 +377,7 @@ short cPlayer::DeltaExperience(short a_Xp_delta)
 	}
 
 	LOGD("Player \"%s\" gained/lost %d experience, total is now: %d", 
-		m_PlayerName.c_str(), a_Xp_delta, m_CurrentXp);
+		GetName().c_str(), a_Xp_delta, m_CurrentXp);
 
 	// Set experience to be updated
 	m_bDirtyExperience = true;
@@ -391,7 +391,7 @@ short cPlayer::DeltaExperience(short a_Xp_delta)
 
 void cPlayer::StartChargingBow(void)
 {
-	LOGD("Player \"%s\" started charging their bow", m_PlayerName.c_str());
+	LOGD("Player \"%s\" started charging their bow", GetName().c_str());
 	m_IsChargingBow = true;
 	m_BowCharge = 0;
 }
@@ -402,7 +402,7 @@ void cPlayer::StartChargingBow(void)
 
 int cPlayer::FinishChargingBow(void)
 {
-	LOGD("Player \"%s\" finished charging their bow at a charge of %d", m_PlayerName.c_str(), m_BowCharge);
+	LOGD("Player \"%s\" finished charging their bow at a charge of %d", GetName().c_str(), m_BowCharge);
 	int res = m_BowCharge;
 	m_IsChargingBow = false;
 	m_BowCharge = 0;
@@ -415,7 +415,7 @@ int cPlayer::FinishChargingBow(void)
 
 void cPlayer::CancelChargingBow(void)
 {
-	LOGD("Player \"%s\" cancelled charging their bow at a charge of %d", m_PlayerName.c_str(), m_BowCharge);
+	LOGD("Player \"%s\" cancelled charging their bow at a charge of %d", GetName().c_str(), m_BowCharge);
 	m_IsChargingBow = false;
 	m_BowCharge = 0;
 }
@@ -1179,8 +1179,8 @@ unsigned int cPlayer::AwardAchievement(const eStatistic a_Ach)
 	{
 		// First time, announce it
 		cCompositeChat Msg;
-		Msg.AddTextPart(m_PlayerName + " has just earned the achievement ");
-		Msg.AddTextPart(cStatInfo::GetName(a_Ach)); // TODO 2014-05-12 xdot: Use the proper cCompositeChat part (cAchievement)
+		Msg.SetMessageType(mtSuccess);
+		Msg.AddShowAchievementPart(GetName(), cStatInfo::GetName(a_Ach));
 		m_World->BroadcastChat(Msg);
 
 		// Increment the statistic
@@ -1315,7 +1315,7 @@ 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", m_PlayerName.c_str(), a_GroupName.c_str() );
+	LOGD("Added %s to group %s", GetName().c_str(), a_GroupName.c_str() );
 	ResolveGroups();
 	ResolvePermissions();
 }
@@ -1339,13 +1339,13 @@ void cPlayer::RemoveFromGroup( const AString & a_GroupName )
 
 	if( bRemoved )
 	{
-		LOGD("Removed %s from group %s", m_PlayerName.c_str(), a_GroupName.c_str() );
+		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", m_PlayerName.c_str(), a_GroupName.c_str() );
+		LOGWARN("Tried to remove %s from group %s but was not in that group", GetName().c_str(), a_GroupName.c_str() );
 	}
 }
 
@@ -1451,7 +1451,7 @@ void cPlayer::ResolveGroups()
 		if( AllGroups.find( CurrentGroup ) != AllGroups.end() )
 		{
 			LOGWARNING("ERROR: Player \"%s\" is in the group multiple times (\"%s\"). Please fix your settings in users.ini!",
-				m_PlayerName.c_str(), CurrentGroup->GetName().c_str()
+				GetName().c_str(), CurrentGroup->GetName().c_str()
 			);
 		}
 		else
@@ -1463,7 +1463,7 @@ void cPlayer::ResolveGroups()
 			{
 				if( AllGroups.find( *itr ) != AllGroups.end() )
 				{
-					LOGERROR("ERROR: Player %s is in the same group multiple times due to inheritance (%s). FIX IT!", m_PlayerName.c_str(), (*itr)->GetName().c_str() );
+					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 );
@@ -1615,19 +1615,19 @@ void cPlayer::LoadPermissionsFromDisk()
 	cIniFile IniFile;
 	if (IniFile.ReadFile("users.ini"))
 	{
-		AString Groups = IniFile.GetValueSet(m_PlayerName, "Groups", "Default");
+		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(), m_PlayerName.c_str());
+				LOGWARNING("The group %s for player %s was not found!", itr->c_str(), GetName().c_str());
 			}
 			AddToGroup(*itr);
 		}
 
-		AString Color = IniFile.GetValue(m_PlayerName, "Color", "-");
+		AString Color = IniFile.GetValue(GetName(), "Color", "-");
 		if (!Color.empty())
 		{
 			m_Color = Color[0];
@@ -1636,7 +1636,7 @@ void cPlayer::LoadPermissionsFromDisk()
 	else
 	{
 		cGroupManager::GenerateDefaultUsersIni(IniFile);
-		IniFile.AddValue("Groups", m_PlayerName, "Default");
+		IniFile.AddValue("Groups", GetName(), "Default");
 		AddToGroup("Default");
 	}
 	IniFile.WriteFile("users.ini");
@@ -1651,14 +1651,14 @@ bool cPlayer::LoadFromDisk()
 	LoadPermissionsFromDisk();
 
 	// Log player permissions, cause it's what the cool kids do
-	LOGINFO("Player %s has permissions:", m_PlayerName.c_str() );
+	LOGINFO("Player %s has permissions:", GetName().c_str() );
 	for( PermissionMap::iterator itr = m_ResolvedPermissions.begin(); itr != m_ResolvedPermissions.end(); ++itr )
 	{
 		if( itr->second ) LOG(" - %s", itr->first.c_str() );
 	}
 
 	AString SourceFile;
-	Printf(SourceFile, "players/%s.json", m_PlayerName.c_str() );
+	Printf(SourceFile, "players/%s.json", GetName().c_str() );
 
 	cFile f;
 	if (!f.Open(SourceFile, cFile::fmRead))
@@ -1726,7 +1726,7 @@ bool cPlayer::LoadFromDisk()
 	StatSerializer.Load();
 	
 	LOGD("Player \"%s\" was read from file, spawning at {%.2f, %.2f, %.2f} in world \"%s\"",
-		m_PlayerName.c_str(), GetPosX(), GetPosY(), GetPosZ(), m_LoadedWorldName.c_str()
+		GetName().c_str(), GetPosX(), GetPosY(), GetPosZ(), m_LoadedWorldName.c_str()
 	);
 	
 	return true;
@@ -1782,12 +1782,12 @@ bool cPlayer::SaveToDisk()
 	std::string JsonData = writer.write(root);
 
 	AString SourceFile;
-	Printf(SourceFile, "players/%s.json", m_PlayerName.c_str() );
+	Printf(SourceFile, "players/%s.json", GetName().c_str() );
 
 	cFile f;
 	if (!f.Open(SourceFile, cFile::fmWrite))
 	{
-		LOGERROR("ERROR WRITING PLAYER \"%s\" TO FILE \"%s\" - cannot open file", m_PlayerName.c_str(), SourceFile.c_str());
+		LOGERROR("ERROR WRITING PLAYER \"%s\" TO FILE \"%s\" - cannot open file", GetName().c_str(), SourceFile.c_str());
 		return false;
 	}
 	if (f.Write(JsonData.c_str(), JsonData.size()) != (int)JsonData.size())
@@ -1798,10 +1798,10 @@ bool cPlayer::SaveToDisk()
 
 	// Save the player stats.
 	// We use the default world name (like bukkit) because stats are shared between dimensions/worlds.
-	cStatSerializer StatSerializer(cRoot::Get()->GetDefaultWorld()->GetName(), m_PlayerName, &m_Stats);
+	cStatSerializer StatSerializer(cRoot::Get()->GetDefaultWorld()->GetName(), GetName(), &m_Stats);
 	if (!StatSerializer.Save())
 	{
-		LOGERROR("Could not save stats for player %s", m_PlayerName.c_str());
+		LOGERROR("Could not save stats for player %s", GetName().c_str());
 		return false;
 	}
 
diff --git a/src/Generating/GridStructGen.cpp b/src/Generating/GridStructGen.cpp
index 23946e2e9..474242557 100644
--- a/src/Generating/GridStructGen.cpp
+++ b/src/Generating/GridStructGen.cpp
@@ -50,6 +50,15 @@ cGridStructGen::cGridStructGen(
 	m_MaxStructureSizeZ(a_MaxStructureSizeZ),
 	m_MaxCacheSize(a_MaxCacheSize)
 {
+	size_t NumStructuresPerQuery = (size_t)((m_MaxStructureSizeX / m_GridSizeX + 1) * (m_MaxStructureSizeZ / m_GridSizeZ + 1));
+	if (NumStructuresPerQuery > m_MaxCacheSize)
+	{
+		m_MaxCacheSize = NumStructuresPerQuery * 4;
+		LOGINFO(
+			"cGridStructGen: The cache size is too small (%u), increasing the cache size to %u to avoid inefficiency.",
+			(unsigned)a_MaxCacheSize, (unsigned)m_MaxCacheSize
+		);
+	}
 }
 
 
diff --git a/src/Generating/MineShafts.cpp b/src/Generating/MineShafts.cpp
index 391e4c04f..81ae6481d 100644
--- a/src/Generating/MineShafts.cpp
+++ b/src/Generating/MineShafts.cpp
@@ -1283,7 +1283,7 @@ cStructGenMineShafts::cStructGenMineShafts(
 	int a_Seed, int a_GridSize, int a_MaxSystemSize,
 	int a_ChanceCorridor, int a_ChanceCrossing, int a_ChanceStaircase
 ) :
-	super(a_Seed, a_GridSize, a_GridSize, 120 + a_MaxSystemSize * 10, 120 + a_MaxSystemSize * 10, 100),
+	super(a_Seed, a_GridSize, a_GridSize, a_MaxSystemSize, a_MaxSystemSize, 100),
 	m_Noise(a_Seed),
 	m_GridSize(a_GridSize),
 	m_MaxSystemSize(a_MaxSystemSize),
diff --git a/src/GroupManager.cpp b/src/GroupManager.cpp
index 3586560bf..523697b07 100644
--- a/src/GroupManager.cpp
+++ b/src/GroupManager.cpp
@@ -45,8 +45,14 @@ cGroupManager::cGroupManager()
 {
 	LOGD("-- Loading Groups --");
 	
-	LoadGroups();
-	CheckUsers();
+	if (!LoadGroups())
+	{
+		LOGWARNING("ERROR: Groups could not load!");
+	}
+	if (!CheckUsers())
+	{
+		LOGWARNING("ERROR: User file could not be found!");
+	}
 	
 	LOGD("-- Groups Successfully Loaded --");
 }
@@ -70,13 +76,13 @@ void cGroupManager::GenerateDefaultUsersIni(cIniFile & a_IniFile)
 
 
 
-void cGroupManager::CheckUsers(void)
+bool cGroupManager::CheckUsers()
 {
 	cIniFile IniFile;
 	if (!IniFile.ReadFile("users.ini"))
 	{
 		GenerateDefaultUsersIni(IniFile);
-		return;
+		return true;
 	}
 	
 	int NumKeys = IniFile.GetNumKeys();
@@ -97,13 +103,15 @@ void cGroupManager::CheckUsers(void)
 			}
 		}  // for itr - Split[]
 	}  // for i - ini file keys
+	// Always return true for now, just but we can handle writefile fails later.
+	return true;
 }
 
 
 
 
 
-void cGroupManager::LoadGroups()
+bool cGroupManager::LoadGroups()
 {
 	cIniFile IniFile;
 	if (!IniFile.ReadFile("groups.ini"))
@@ -180,6 +188,8 @@ void cGroupManager::LoadGroups()
 			}
 		}
 	}
+	// Always return true, we can handle writefile fails later.
+	return true;
 }
 
 
diff --git a/src/GroupManager.h b/src/GroupManager.h
index 9e1689a76..d42b55c4a 100644
--- a/src/GroupManager.h
+++ b/src/GroupManager.h
@@ -16,8 +16,8 @@ class cGroupManager
 public:
 	bool ExistsGroup(const AString & a_Name);
 	cGroup * GetGroup(const AString & a_Name);
-	void LoadGroups(void);
-	void CheckUsers(void);
+	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);
diff --git a/src/Protocol/Protocol17x.cpp b/src/Protocol/Protocol17x.cpp
index 39feee16f..7c526d103 100644
--- a/src/Protocol/Protocol17x.cpp
+++ b/src/Protocol/Protocol17x.cpp
@@ -234,7 +234,7 @@ void cProtocol172::SendChat(const cCompositeChat & a_Message)
 	
 	// Compose the complete Json string to send:
 	Json::Value msg;
-	msg["text"] = "";  // The client crashes without this
+	msg["text"] = cClientHandle::FormatMessageType(m_Client->GetPlayer()->GetWorld()->ShouldUseChatPrefixes(), a_Message.GetMessageType(), a_Message.GetAdditionalMessageTypeData());  // The client crashes without this field being present
 	const cCompositeChat::cParts & Parts = a_Message.GetParts();
 	for (cCompositeChat::cParts::const_iterator itr = Parts.begin(), end = Parts.end(); itr != end; ++itr)
 	{
@@ -289,6 +289,35 @@ void cProtocol172::SendChat(const cCompositeChat & a_Message)
 				AddChatPartStyle(Part, p.m_Style);
 				break;
 			}
+
+			case cCompositeChat::ptShowAchievement:
+			{
+				const cCompositeChat::cShowAchievementPart & p = (const cCompositeChat::cShowAchievementPart &)**itr;
+				Part["translate"] = "chat.type.achievement";
+
+				Json::Value Ach;
+				Ach["action"] = "show_achievement";
+				Ach["value"] = p.m_Text;
+				
+				Json::Value AchColourAndName;
+				AchColourAndName["color"] = "green";
+				AchColourAndName["translate"] = p.m_Text;
+				AchColourAndName["hoverEvent"] = Ach;
+
+				Json::Value Extra;
+				Extra.append(AchColourAndName);
+
+				Json::Value Name;
+				Name["text"] = p.m_PlayerName;
+
+				Json::Value With;
+				With.append(Name);
+				With.append(Extra);
+
+				Part["with"] = With;
+				AddChatPartStyle(Part, p.m_Style);
+				break;
+			}
 		}
 		msg["extra"].append(Part);
 	}  // for itr - Parts[]