#ifndef SPRITE_H

#define SPRITE_H

/* The following describes bunch of sprites to be drawn together in a single 3D

 * bounding box. Used especially for various multi-sprite buildings (like

 * depots or stations): */

typedef struct DrawTileSeqStruct {

	int8 delta_x;

	int8 delta_y;

	int8 delta_z;

	byte width,height;

	byte unk; // 'depth', just z-size; TODO: rename

	uint32 image;

} DrawTileSeqStruct;

typedef struct DrawTileSprites {

	SpriteID ground_sprite;

	DrawTileSeqStruct const *seq;

} DrawTileSprites;

#define foreach_draw_tile_seq(idx, list) for (idx = list; ((byte) idx->delta_x) != 0x80; idx++)

/* This is for custom sprites: */

struct SpriteGroup {

	// XXX: Would anyone ever need more than 16 spritesets? Maybe we should

	// use even less, now we take whole 8kb for custom sprites table, oh my!

	byte sprites_per_set; // means number of directions - 4 or 8

	// Loaded = in motion, loading = not moving

	// Each group contains several spritesets, for various loading stages

	// XXX: For stations the meaning is different - loaded is for stations

	// with small amount of cargo whilst loading is for stations with a lot

	// of da stuff.

	byte loaded_count;

	uint16 loaded[16]; // sprite ids

	byte loading_count;

	uint16 loading[16]; // sprite ids

};

#endif