Seperated BlockArea From World

If anyone can come up with a better name for the interface I'll change it, It contians to methods which do compleatly unrelated things

src/ForEachChunkProvider.h

@@ -0,0 +1,10 @@
+
+class cBlockArea;
+
+class cForEachChunkProvider
+{
+public:
+	virtual bool ForEachChunkInRect(int a_MinChunkX, int a_MaxChunkX, int a_MinChunkZ, int a_MaxChunkZ, cChunkDataCallback & a_Callback) = 0;
+	
+	virtual bool WriteBlockArea(cBlockArea & a_Area, int a_MinBlockX, int a_MinBlockY, int a_MinBlockZ, int a_DataTypes) = 0;
+};