Add IMeshBuffer::getColor functions

Lazy access function - same as for all other members of S3DVertex (getPosition/getNormal/getTCoords).
Not sure why color was missing, maybe got added later?
Would probably be better to have a getS3DVertex function instead which would cover them all, but it's only some slow (but nice) helper function anyway.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6415 dfc29bdd-3216-0410-991c-e03cc46cb475

include/CMeshBuffer.h

@@ -176,6 +176,17 @@ namespace scene
 			return Vertices[i].TCoords;
 		}
 
+		//! returns color of vertex i
+		virtual video::SColor& getColor(u32 i) IRR_OVERRIDE
+		{
+			return Vertices[i].Color;
+		}
+
+		//! returns color of vertex i
+		virtual const video::SColor& getColor(u32 i) const IRR_OVERRIDE
+		{
+			return Vertices[i].Color;
+		}
 
 		//! Append the vertices and indices to the current buffer
 		/** Only works for compatible types, i.e. either the same type

include/IDynamicMeshBuffer.h

@@ -166,6 +166,18 @@ namespace scene
 		{
 			return getVertexBuffer()[i].Normal;
 		}
+
+		//! returns color of vertex i
+		virtual video::SColor& getColor(u32 i) IRR_OVERRIDE
+		{
+			return getVertexBuffer()[i].Color;
+		}
+
+		//! returns color of vertex i
+		virtual const video::SColor& getColor(u32 i) const IRR_OVERRIDE
+		{
+			return getVertexBuffer()[i].Color;
+		}
 	};
 
 

include/IMeshBuffer.h

@@ -119,6 +119,12 @@ namespace scene
 		//! returns texture coord of vertex i
 		virtual core::vector2df& getTCoords(u32 i) = 0;
 
+		//! returns color of vertex i
+		virtual video::SColor& getColor(u32 i) = 0;
+
+		//! returns color of vertex i
+		virtual const video::SColor& getColor(u32 i) const = 0;
+
 		//! Append the vertices and indices to the current buffer
 		/** Only works for compatible vertex types
 		and not implemented for most buffers for now.

include/SSharedMeshBuffer.h

@@ -171,6 +171,21 @@ namespace scene
 			return (*Vertices)[Indices[i]].TCoords;
 		}
 
+		//! returns color of vertex i
+		virtual video::SColor& getColor(u32 i) IRR_OVERRIDE
+		{
+			IRR_DEBUG_BREAK_IF(!Vertices);
+			return (*Vertices)[Indices[i]].Color;
+		}
+
+		//! returns color of vertex i
+		virtual const video::SColor& getColor(u32 i) const IRR_OVERRIDE
+		{
+			IRR_DEBUG_BREAK_IF(!Vertices);
+			return (*Vertices)[Indices[i]].Color;
+		}
+
+
 		//! append the vertices and indices to the current buffer
 		virtual void append(const void* const vertices, u32 numVertices, const u16* const indices, u32 numIndices)  IRR_OVERRIDE 
 		{

include/SSkinMeshBuffer.h

@@ -326,6 +326,34 @@ struct SSkinMeshBuffer : public IMeshBuffer
 		}
 	}
 
+	//! returns color of vertex i
+	virtual video::SColor& getColor(u32 i) IRR_OVERRIDE
+	{
+		switch (VertexType)
+		{
+			case video::EVT_2TCOORDS:
+				return Vertices_2TCoords[i].Color;
+			case video::EVT_TANGENTS:
+				return Vertices_Tangents[i].Color;
+			default:
+				return Vertices_Standard[i].Color;
+		}
+	}
+
+	//! returns color of vertex i
+	virtual const video::SColor& getColor(u32 i) const IRR_OVERRIDE
+	{
+		switch (VertexType)
+		{
+			case video::EVT_2TCOORDS:
+				return Vertices_2TCoords[i].Color;
+			case video::EVT_TANGENTS:
+				return Vertices_Tangents[i].Color;
+			default:
+				return Vertices_Standard[i].Color;
+		}
+	}
+
 	//! append the vertices and indices to the current buffer
 	virtual void append(const void* const vertices, u32 numVertices, const u16* const indices, u32 numIndices) IRR_OVERRIDE {}