From f0c53dbad48a295413d3207cd463e1dfb19faa93 Mon Sep 17 00:00:00 2001
From: Mattes D <github@xoft.cz>
Date: Thu, 30 Jun 2016 19:35:00 +0200
Subject: [PATCH] LuaAPI: Fixed bindings for cChunkDesc:GetBlockTypeMeta

---
 src/Bindings/ManualBindings.cpp | 32 ++++++++++++++++++++++++++++++++
 src/Generating/ChunkDesc.cpp    |  2 +-
 src/Generating/ChunkDesc.h      |  7 ++++++-
 3 files changed, 39 insertions(+), 2 deletions(-)

diff --git a/src/Bindings/ManualBindings.cpp b/src/Bindings/ManualBindings.cpp
index 1d735ac83..8bcd5a4e6 100644
--- a/src/Bindings/ManualBindings.cpp
+++ b/src/Bindings/ManualBindings.cpp
@@ -30,6 +30,7 @@
 #include "../BlockEntities/NoteEntity.h"
 #include "../BlockEntities/MobHeadEntity.h"
 #include "../BlockEntities/FlowerPotEntity.h"
+#include "../Generating/ChunkDesc.h"
 #include "../LineBlockTracer.h"
 #include "../WorldStorage/SchematicFileSerializer.h"
 #include "../CompositeChat.h"
@@ -3443,6 +3444,33 @@ static int tolua_cBoundingBox_Intersect(lua_State * a_LuaState)
 
 
 
+static int tolua_cChunkDesc_GetBlockTypeMeta(lua_State * a_LuaState)
+{
+	/* Function signature:
+	ChunkDesc:GetBlockTypeMeta(RelX, RelY, RelZ) -> BlockType, BlockMeta
+	*/
+
+	cLuaState L(a_LuaState);
+	const cChunkDesc * self;
+	int relX, relY, relZ;
+	if (!L.GetStackValues(1, self, relX, relY, relZ))
+	{
+		L.LogStackValues();
+		tolua_error(a_LuaState, "Invalid function params. Expected chunkDesc:GetBlockTypeMeta(relX, relY, relZ)", nullptr);
+		return 0;
+	}
+	BLOCKTYPE blockType;
+	NIBBLETYPE blockMeta;
+	self->GetBlockTypeMeta(relX, relY, relZ, blockType, blockMeta);
+	L.Push(blockType);
+	L.Push(blockMeta);
+	return 2;
+}
+
+
+
+
+
 static int tolua_cCompositeChat_AddRunCommandPart(lua_State * tolua_S)
 {
 	// function cCompositeChat:AddRunCommandPart(Message, Command, [Style])
@@ -3736,6 +3764,10 @@ void cManualBindings::Bind(lua_State * tolua_S)
 			tolua_function(tolua_S, "Intersect",            tolua_cBoundingBox_Intersect);
 		tolua_endmodule(tolua_S);
 
+		tolua_beginmodule(tolua_S, "cChunkDesc");
+			tolua_function(tolua_S, "GetBlockTypeMeta", tolua_cChunkDesc_GetBlockTypeMeta);
+		tolua_endmodule(tolua_S);
+
 		tolua_beginmodule(tolua_S, "cClientHandle");
 			tolua_constant(tolua_S, "MAX_VIEW_DISTANCE", cClientHandle::MAX_VIEW_DISTANCE);
 			tolua_constant(tolua_S, "MIN_VIEW_DISTANCE", cClientHandle::MIN_VIEW_DISTANCE);
diff --git a/src/Generating/ChunkDesc.cpp b/src/Generating/ChunkDesc.cpp
index fcbebf1ca..6ba63d5ce 100644
--- a/src/Generating/ChunkDesc.cpp
+++ b/src/Generating/ChunkDesc.cpp
@@ -72,7 +72,7 @@ void cChunkDesc::SetBlockTypeMeta(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE
 
 
 
-void cChunkDesc::GetBlockTypeMeta(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta)
+void cChunkDesc::GetBlockTypeMeta(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta) const
 {
 	m_BlockArea.GetRelBlockTypeMeta(a_RelX, a_RelY, a_RelZ, a_BlockType, a_BlockMeta);
 }
diff --git a/src/Generating/ChunkDesc.h b/src/Generating/ChunkDesc.h
index aa689fcd6..9e3f4af5e 100644
--- a/src/Generating/ChunkDesc.h
+++ b/src/Generating/ChunkDesc.h
@@ -52,7 +52,12 @@ public:
 
 	void       FillBlocks(BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta);
 	void       SetBlockTypeMeta(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta);
-	void       GetBlockTypeMeta(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta);
+
+	// tolua_end
+	/** Returns the BlockType and BlockMeta at the specified coords.
+	Exported to Lua manually to avoid extra parameters generated by ToLua++. */
+	void GetBlockTypeMeta(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta) const;
+	// tolua_begin
 
 	void       SetBlockType(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType);
 	BLOCKTYPE  GetBlockType(int a_RelX, int a_RelY, int a_RelZ);