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authormadmaxoft <github@xoft.cz>2014-02-10 22:47:10 +0100
committermadmaxoft <github@xoft.cz>2014-02-10 22:47:10 +0100
commit9cebc9157cf43ba639227b9d79b980b3613dda1e (patch)
tree9c61bbee8a94668703c316f1c300187d247093f9 /src/Bindings
parentcLuaState: Stack traces don't include ghost 0-th element. (diff)
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Diffstat (limited to 'src/Bindings')
-rw-r--r--src/Bindings/AllToLua.pkg2
-rw-r--r--src/Bindings/LuaChunkStay.cpp146
-rw-r--r--src/Bindings/LuaChunkStay.h48
-rw-r--r--src/Bindings/ManualBindings.cpp40
4 files changed, 172 insertions, 64 deletions
diff --git a/src/Bindings/AllToLua.pkg b/src/Bindings/AllToLua.pkg
index a78ee7d56..f65aed9bb 100644
--- a/src/Bindings/AllToLua.pkg
+++ b/src/Bindings/AllToLua.pkg
@@ -24,7 +24,6 @@ $cfile "Plugin.h"
$cfile "PluginLua.h"
$cfile "WebPlugin.h"
$cfile "LuaWindow.h"
-$cfile "LuaChunkStay.h"
$cfile "../BlockID.h"
$cfile "../StringUtils.h"
@@ -71,7 +70,6 @@ $cfile "../Generating/ChunkDesc.h"
$cfile "../CraftingRecipes.h"
$cfile "../UI/Window.h"
$cfile "../Mobs/Monster.h"
-$cfile "../ChunkStay.h"
diff --git a/src/Bindings/LuaChunkStay.cpp b/src/Bindings/LuaChunkStay.cpp
index f84964f56..0e982637f 100644
--- a/src/Bindings/LuaChunkStay.cpp
+++ b/src/Bindings/LuaChunkStay.cpp
@@ -1,18 +1,20 @@
// LuaChunkStay.cpp
-// Implements the cLuaChunkStay class representing a cChunkStay binding for plugins
+// Implements the cLuaChunkStay class representing a cChunkStay binding for plugins, used by cWorld:ChunkStay() Lua API
#include "Globals.h"
#include "LuaChunkStay.h"
+#include "PluginLua.h"
#include "../World.h"
-cLuaChunkStay::cLuaChunkStay(void) :
- m_LuaState((lua_State *)NULL) // Want a detached Lua state by default
+cLuaChunkStay::cLuaChunkStay(cPluginLua & a_Plugin) :
+ m_Plugin(a_Plugin),
+ m_LuaState(NULL)
{
}
@@ -20,39 +22,107 @@ cLuaChunkStay::cLuaChunkStay(void) :
-void cLuaChunkStay::Enable(
- cWorld & a_World, lua_State * a_LuaState,
- int a_OnChunkAvailableStackPos, int a_OnAllChunksAvailableStackPos
-)
+bool cLuaChunkStay::AddChunks(int a_ChunkCoordTableStackPos)
{
- if (m_LuaState.IsValid())
+ // This function is expected to be called just once, with all the coords in a table
+ ASSERT(m_Chunks.empty());
+
+ cPluginLua::cOperation Op(m_Plugin);
+ cLuaState & L = Op();
+
+ // Check that we got a table:
+ if (!lua_istable(L, a_ChunkCoordTableStackPos))
{
- LOGWARNING("LuaChunkStay: Already enabled. Ignoring this call.");
- cLuaState::LogStackTrace(a_LuaState);
- return;
+ LOGWARNING("%s: The parameter is not a table of coords (got %s). Ignoring the call.",
+ __FUNCTION__, lua_typename(L, lua_type(L, a_ChunkCoordTableStackPos))
+ );
+ L.LogStackTrace();
+ return false;
+ }
+
+ // Add each set of coords:
+ int NumChunks = luaL_getn(L, a_ChunkCoordTableStackPos);
+ m_Chunks.reserve(NumChunks);
+ for (int idx = 1; idx <= NumChunks; idx++)
+ {
+ // Push the idx-th element of the array onto stack top, check that it's a table:
+ lua_rawgeti(L, a_ChunkCoordTableStackPos, idx);
+ if (!lua_istable(L, -1))
+ {
+ LOGWARNING("%s: Element #%d is not a table (got %s). Ignoring the element.",
+ __FUNCTION__, idx, lua_typename(L, -1)
+ );
+ L.LogStackTrace();
+ lua_pop(L, 1);
+ continue;
+ }
+ AddChunkCoord(L, idx);
+ lua_pop(L, 1);
}
- m_LuaState.Attach(a_LuaState);
- m_OnChunkAvailable.RefStack(m_LuaState, a_OnChunkAvailableStackPos);
- m_OnAllChunksAvailable.RefStack(m_LuaState, a_OnAllChunksAvailableStackPos);
- super::Enable(*a_World.GetChunkMap());
+
+ // If there are no chunks, log a warning and return failure:
+ if (m_Chunks.empty())
+ {
+ LOGWARNING("%s: Zero chunks to stay.", __FUNCTION__);
+ L.LogStackTrace();
+ return false;
+ }
+
+ // All ok
+ return true;
}
-void cLuaChunkStay::Disable(void)
+void cLuaChunkStay::AddChunkCoord(cLuaState & L, int a_Index)
{
- super::Disable();
-
- // If the state was valid (bound to Lua functions), unbind those functions:
- if (!m_LuaState.IsValid())
+ // Check that the element has 2 coords:
+ int NumCoords = luaL_getn(L, -1);
+ if (NumCoords != 2)
{
+ LOGWARNING("%s: Element #%d doesn't contain 2 coords (got %d). Ignoring the element.",
+ __FUNCTION__, a_Index, NumCoords
+ );
return;
}
- m_OnAllChunksAvailable.UnRef();
- m_OnChunkAvailable.UnRef();
- m_LuaState.Detach();
+
+ // Read the two coords from the element:
+ lua_rawgeti(L, -1, 1);
+ lua_rawgeti(L, -2, 2);
+ int ChunkX = luaL_checkint(L, -2);
+ int ChunkZ = luaL_checkint(L, -1);
+ lua_pop(L, 2);
+
+ // Check that a coord is not yet present:
+ for (cChunkCoordsVector::iterator itr = m_Chunks.begin(), end = m_Chunks.end(); itr != end; ++itr)
+ {
+ if ((itr->m_ChunkX == ChunkX) && (itr->m_ChunkZ == ChunkZ))
+ {
+ LOGWARNING("%s: Element #%d is a duplicate, ignoring it.",
+ __FUNCTION__, a_Index
+ );
+ return;
+ }
+ } // for itr - m_Chunks[]
+
+ m_Chunks.push_back(cChunkCoords(ChunkX, ZERO_CHUNK_Y, ChunkZ));
+}
+
+
+
+
+
+void cLuaChunkStay::Enable(cChunkMap & a_ChunkMap, int a_OnChunkAvailableStackPos, int a_OnAllChunksAvailableStackPos)
+{
+ // Get the references to the callback functions:
+ m_LuaState = &m_Plugin.GetLuaState();
+ m_OnChunkAvailable.RefStack(*m_LuaState, a_OnChunkAvailableStackPos);
+ m_OnAllChunksAvailable.RefStack(*m_LuaState, a_OnAllChunksAvailableStackPos);
+
+ // Enable the ChunkStay:
+ super::Enable(a_ChunkMap);
}
@@ -61,19 +131,43 @@ void cLuaChunkStay::Disable(void)
void cLuaChunkStay::OnChunkAvailable(int a_ChunkX, int a_ChunkZ)
{
- m_LuaState.Call(m_OnChunkAvailable, a_ChunkX, a_ChunkZ);
+ // DEBUG:
+ LOGD("LuaChunkStay: Chunk [%d, %d] is now available, calling the callback...", a_ChunkX, a_ChunkZ);
+
+ cPluginLua::cOperation Op(m_Plugin);
+ Op().Call((int)m_OnChunkAvailable, a_ChunkX, a_ChunkZ);
}
-void cLuaChunkStay::OnAllChunksAvailable(void)
+bool cLuaChunkStay::OnAllChunksAvailable(void)
{
- m_LuaState.Call(m_OnAllChunksAvailable);
+ {
+ // Call the callback:
+ cPluginLua::cOperation Op(m_Plugin);
+ Op().Call((int)m_OnAllChunksAvailable);
+
+ // Remove the callback references - they won't be needed anymore
+ m_OnChunkAvailable.UnRef();
+ m_OnAllChunksAvailable.UnRef();
+ }
+
+ // Disable the ChunkStay by returning true
+ return true;
}
+void cLuaChunkStay::OnDisabled(void)
+{
+ // This object is no longer needed, delete it
+ delete this;
+}
+
+
+
+
diff --git a/src/Bindings/LuaChunkStay.h b/src/Bindings/LuaChunkStay.h
index 0ab73f669..49ab9a0ad 100644
--- a/src/Bindings/LuaChunkStay.h
+++ b/src/Bindings/LuaChunkStay.h
@@ -1,7 +1,7 @@
// LuaChunkStay.h
-// Declares the cLuaChunkStay class representing a cChunkStay binding for plugins
+// Declares the cLuaChunkStay class representing a cChunkStay binding for plugins, used by cWorld:ChunkStay() Lua API
@@ -16,36 +16,36 @@
-// tolua_begin
+// fwd:
+class cPluginLua;
+
+
+
+
+
class cLuaChunkStay
: public cChunkStay
{
typedef cChunkStay super;
public:
- // Allow Lua to construct objects of this class:
- cLuaChunkStay(void);
+ cLuaChunkStay(cPluginLua & a_Plugin);
- // Allow Lua to garbage-collect objects of this class:
~cLuaChunkStay() { }
- // tolua_end
+ /** Adds chunks in the specified on-stack Lua table.
+ Returns true if any chunk added, false (plus log warning) if none. */
+ bool AddChunks(int a_ChunkCoordTableStackPos);
- /** Enables the ChunkStay for the specified world, with the specified Lua callbacks.
- Exported in ManualBindings. */
- void Enable(
- cWorld & a_World, lua_State * a_LuaState,
- int a_OnChunkAvailableStackPos, int a_OnAllChunksAvailableStackPos
- );
-
- // tolua_begin
-
- /** Disables the ChunkStay. Cleans up the bound Lua state and callbacks */
- virtual void Disable(void);
+ /** Enables the ChunkStay for the specified chunkmap, with the specified Lua callbacks. */
+ void Enable(cChunkMap & a_ChunkMap, int a_OnChunkAvailableStackPos, int a_OnAllChunksAvailableStackPos);
protected:
+ /** The plugin which has created the ChunkStay, via cWorld:ChunkStay() binding method. */
+ cPluginLua & m_Plugin;
+
/** The Lua state associated with the callbacks. Only valid when enabled. */
- cLuaState m_LuaState;
+ cLuaState * m_LuaState;
/** The Lua function to call in OnChunkAvailable. Only valid when enabled. */
cLuaState::cRef m_OnChunkAvailable;
@@ -53,12 +53,20 @@ protected:
/** The Lua function to call in OnAllChunksAvailable. Only valid when enabled. */
cLuaState::cRef m_OnAllChunksAvailable;
+
// cChunkStay overrides:
virtual void OnChunkAvailable(int a_ChunkX, int a_ChunkZ) override;
- virtual void OnAllChunksAvailable(void) override;
+ virtual bool OnAllChunksAvailable(void) override;
+ virtual void OnDisabled(void) override;
+
+ /** Adds a single chunk coord from the table at the top of the Lua stack.
+ Expects the top element to be a table, checks that it contains two numbers.
+ Uses those two numbers as chunk coords appended to m_Chunks.
+ If the coords are already present, gives a warning and ignores the pair.
+ The a_Index parameter is only for the error messages. */
+ void AddChunkCoord(cLuaState & a_LuaState, int a_Index);
} ;
-// tolua_end
diff --git a/src/Bindings/ManualBindings.cpp b/src/Bindings/ManualBindings.cpp
index 3571fd7ea..f0bad92e8 100644
--- a/src/Bindings/ManualBindings.cpp
+++ b/src/Bindings/ManualBindings.cpp
@@ -1639,35 +1639,46 @@ static int tolua_cPluginManager_CallPlugin(lua_State * tolua_S)
-static int tolua_cLuaChunkStay_Enable(lua_State * tolua_S)
+static int tolua_cWorld_ChunkStay(lua_State * tolua_S)
{
+ /* Function signature:
+ World:ChunkStay(ChunkCoordTable, OnChunkAvailable, OnAllChunksAvailable)
+ ChunkCoordTable == { {Chunk1x, Chunk1z}, {Chunk2x, Chunk2z}, ... }
+ */
+
cLuaState L(tolua_S);
if (
- !L.CheckParamUserType(1, "cLuaChunkStay") ||
- !L.CheckParamUserType(2, "cWorld") ||
+ !L.CheckParamUserType(1, "cWorld") ||
+ !L.CheckParamTable (2) ||
!L.CheckParamFunction(3, 4)
)
{
return 0;
}
- // Read the params:
- cLuaChunkStay * ChunkStay = (cLuaChunkStay *)tolua_tousertype(tolua_S, 1, NULL);
- if (ChunkStay == NULL)
+ cPluginLua * Plugin = GetLuaPlugin(tolua_S);
+ if (Plugin == NULL)
{
- LOGWARNING("cLuaChunkStay:Enable(): invalid self");
- L.LogStackTrace();
return 0;
}
- cWorld * World = (cWorld *)tolua_tousertype(tolua_S, 2, NULL);
+ cLuaChunkStay * ChunkStay = new cLuaChunkStay(*Plugin);
+
+ // Read the params:
+ cWorld * World = (cWorld *)tolua_tousertype(tolua_S, 1, NULL);
if (World == NULL)
{
- LOGWARNING("cLuaChunkStay:Enable(): invalid world parameter");
+ LOGWARNING("World:ChunkStay(): invalid world parameter");
L.LogStackTrace();
return 0;
}
-
- ChunkStay->Enable(*World, tolua_S, 3, 4);
+ L.LogStack("Before AddChunks()");
+ if (!ChunkStay->AddChunks(2))
+ {
+ return 0;
+ }
+ L.LogStack("After params read");
+
+ ChunkStay->Enable(*World->GetChunkMap(), 3, 4);
return 0;
}
@@ -2397,6 +2408,7 @@ void ManualBindings::Bind(lua_State * tolua_S)
tolua_endmodule(tolua_S);
tolua_beginmodule(tolua_S, "cWorld");
+ tolua_function(tolua_S, "ChunkStay", tolua_cWorld_ChunkStay);
tolua_function(tolua_S, "DoWithBlockEntityAt", tolua_DoWithXYZ<cWorld, cBlockEntity, &cWorld::DoWithBlockEntityAt>);
tolua_function(tolua_S, "DoWithChestAt", tolua_DoWithXYZ<cWorld, cChestEntity, &cWorld::DoWithChestAt>);
tolua_function(tolua_S, "DoWithDispenserAt", tolua_DoWithXYZ<cWorld, cDispenserEntity, &cWorld::DoWithDispenserAt>);
@@ -2440,10 +2452,6 @@ void ManualBindings::Bind(lua_State * tolua_S)
tolua_function(tolua_S, "LogStackTrace", tolua_cPluginManager_LogStackTrace);
tolua_endmodule(tolua_S);
- tolua_beginmodule(tolua_S, "cLuaChunkStay");
- tolua_function(tolua_S, "Enable", tolua_cLuaChunkStay_Enable);
- 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);