struct GRFFile {

	char *filename;

	uint32 grfid;

	uint16 flags;

	uint16 sprite_offset;

	struct GRFFile *next;

	/* A sprite group contains all sprites of a given vehicle (or multiple

	 * vehicles) when carrying given cargo. It consists of several sprite

	 * sets.  Group ids are refered as "cargo id"s by TTDPatch

	 * documentation, contributing to the global confusion.

	 *

	 * A sprite set contains all sprites of a given vehicle carrying given

	 * cargo at a given *stage* - that is usually its load stage. Ie. you

	 * can have a spriteset for an empty wagon, wagon full of coal,

	 * half-filled wagon etc.  Each spriteset contains eight sprites (one

	 * per direction) or four sprites if the vehicle is symmetric. */

	int spriteset_start;

	int spriteset_numsets;

	int spriteset_numents;

	int spriteset_feature;

	int spritegroups_count;

	struct SpriteGroup *spritegroups;

	struct StationSpec stations[256];

};

struct GRFFile *_first_grffile;

int _grffile_count;