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/* $Id$ */

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/** @file sprite.h */

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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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struct DrawTileSeqStruct {

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	int8 delta_x; // 0x80 is sequence terminator

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	int8 delta_y;

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	int8 delta_z;

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	byte size_x;

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	byte size_y;

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	byte size_z;

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	SpriteID image;

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	SpriteID pal;

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};

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struct DrawTileSprites {

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	SpriteID ground_sprite;

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	SpriteID ground_pal;

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	const DrawTileSeqStruct *seq;

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};

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/**

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 * This structure is the same for both Industries and Houses.

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 * Buildings here reference a general type of construction

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 */

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struct DrawBuildingsTileStruct {

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	PalSpriteID ground;

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	PalSpriteID building;

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	byte subtile_x;

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	byte subtile_y;

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	byte width;

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	byte height;

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	byte dz;

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	byte draw_proc;  /* this allows to specify a special drawing procedure.*/

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};

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/** Iterate through all DrawTileSeqStructs in 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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#endif /* SPRITE_H */