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#ifndef SPRITE_H

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#define SPRITE_H

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

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

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 * depots or stations): */

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typedef struct DrawTileSeqStruct {

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	int8 delta_x;

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	int8 delta_y;

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	int8 delta_z;

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	byte width,height;

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

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	uint32 image;

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} DrawTileSeqStruct;

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typedef struct DrawTileSprites {

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	SpriteID ground_sprite;

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	DrawTileSeqStruct const *seq;

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} DrawTileSprites;

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

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/* This is for custom sprites: */

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struct SpriteGroup {

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

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

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

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	// Loaded = in motion, loading = not moving

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

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

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

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	// of da stuff.

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	byte loaded_count;

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	uint16 loaded[16]; // sprite ids

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	byte loading_count;

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	uint16 loading[16]; // sprite ids

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};

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#endif