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/* $Id$ */

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#ifndef NEWGRF_H

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#define NEWGRF_H

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#include "sprite.h"

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#include "station.h"

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typedef struct GRFFile GRFFile;

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struct GRFFile {

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	char *filename;

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	uint32 grfid;

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	uint16 flags;

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	uint16 sprite_offset;

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	GRFFile *next;

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

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

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

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	 * documentation, contributing to the global confusion.

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	 *

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

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

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

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

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

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	int spriteset_start;

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	int spriteset_numsets;

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	int spriteset_numents;

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	int spriteset_feature;

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	int spritegroups_count;

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	SpriteGroup *spritegroups;

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	StationSpec stations[256];

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};

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extern int _grffile_count;

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extern GRFFile *_first_grffile;

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void InitNewGRFFile(const char *filename, int sprite_offset);

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void DecodeSpecialSprite(const char *filename, int num, int spriteid, int stage);

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#endif /* NEWGRF_H */

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