Sky lights data saving (optimization)

src/lighting/Lightmap.h

@@ -5,6 +5,8 @@
 #include "../typedefs.h"
 #include "../voxels/Chunk.h"
 
+const int LIGHTMAP_DATA_LEN = CHUNK_VOL/2;
+
 // Lichtkarte
 class Lightmap {
 public:
@@ -15,6 +17,8 @@ public:
 
 	void set(const Lightmap* lightmap);
 
+	void set(light_t* map);
+
 	inline unsigned short get(int x, int y, int z){
 		return (map[y*CHUNK_D*CHUNK_W+z*CHUNK_W+x]);
 	}
@@ -81,6 +85,7 @@ public:
 	}
 
 	ubyte* encode() const;
+	static light_t* decode(ubyte* buffer);
 };
 
 #endif /* LIGHTING_LIGHTMAP_H_ */