mod_tile data

gistfile1.c

#define META_MAGIC "META"
#define META_MAGIC_COMPRESSED "METZ"

struct entry {
	int offset;
	int size;
};

struct meta_layout {
	char magic[4];
	int count; // METATILE ^ 2
	int x, y, z; // lowest x,y of this metatile, plus z
	struct entry index[]; // count entries
	// Followed by the tile data
	// The index offsets are measured from the start of the file
};