//
// Sprites
//
 
#ifndef GBA_SPRITES_H
#define GBA_SPRITES_H
 
#include "gba_types.h"
 
// Attribute 0
#define ROTATION_FLAG               0x0100
#define SIZE_DOUBLE                     0x0200
#define MODE_NORMAL                0x0000
#define MODE_TRANSPARENT      0x0400
#define MODE_TRANSPARENT_HALF      0x0500
#define MODE_TRANSPARENT_BOTH      0x0600
#define MODE_WINDOWED           0x0800
#define MOSAIC                               0x1000
#define COLOR_16                           0x0000
#define COLOR_256                         0x2000
#define SQUARE                               0x0000
#define WIDE                                     0x4000
#define TALL                                     0x8000
 
// Attribute 1
#define ROTDATA(n)             (n << 9)
#define HORIZONTAL_FLIP            0x1000
#define VERTICAL_FLIP                  0x2000
#define SIZE_8                                   0x0000
#define SIZE_16                                 0x4000
#define SIZE_32                                 0x8000
#define SIZE_64                                 0xC000
 
// Attribute 2
#define PRIORITY(n)             ((n)<<10)
#define PALETTE(n)                          ((n)<<12)
 
//sprite structure definitions
typedef struct tagOAMEntry
{
            u16 attribute0;
            u16 attribute1;
            u16 attribute2;
            u16 attribute3;
}OAMEntry, *pOAMEntry;
 
//sprite rotation information (don't worry about this for now)
typedef struct tagRotData
{
            u16 filler1[3];
            u16 pa;
            u16 filler2[3];
            u16 pb;
            u16 filler3[3];
            u16 pc;
            u16 filler4[3];
            u16 pd;
}RotData, *pRotData;
 
#endif