cpp/openttd-patchpack/source Files · sprite.h

Files @ r5427:5c600ac28c4a

Branch filter:

Location: cpp/openttd-patchpack/source/sprite.h

r5427:5c600ac28c4a 1.1 KiB text/x-c Show Annotation Show as Raw Download as Raw

rubidium

(svn r7631) -Fix (r1): some pointer arithmetic gave the number of entries instead of the number of bytes to move when removing the animated state from a tile. This caused desyncs between Little and Big Endian machines. Thanks to pv2b for helping me in locating the bug and to Darkvater for figuring out that the arithmetic returned the number of entries instead of bytes.

/* $Id$ */

#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; // 0x80 is sequence terminator
	int8 delta_y;
	int8 delta_z;
	byte size_x;
	byte size_y;
	byte size_z;
	uint32 image;
} DrawTileSeqStruct;

typedef struct DrawTileSprites {
	SpriteID ground_sprite;
	const DrawTileSeqStruct* seq;
} DrawTileSprites;

/**
 * This structure is the same for both Industries and Houses.
 * Buildings here reference a general type of construction
 */
typedef struct DrawBuildingsTileStruct {
	SpriteID ground;
	SpriteID building;
	byte subtile_x:4;
	byte subtile_y:4;
	byte width:4;
	byte height:4;
	byte dz;
	byte draw_proc;  /* this allows to specify a special drawing procedure.*/
} DrawBuildingsTileStruct;

// Iterate through all DrawTileSeqStructs in DrawTileSprites.
#define foreach_draw_tile_seq(idx, list) for (idx = list; ((byte) idx->delta_x) != 0x80; idx++)


#endif /* SPRITE_H */