/* bg.h - Don Yang (uguu.org)

   05/19/03
                                                                           */

#ifndef BG_H__
#define BG_H__


#define GRID_SIZE                32
#define GRID_XSIZE               (GRID_SIZE * 2)
#define GRID_ZSIZE               GRID_SIZE
#define CELL_SIZE                2.0

#define CELL_EMPTY               ((unsigned char)0)
#define CELL_ORIG                ((unsigned char)2)
#define CELL_COVERED             ((unsigned char)1)

#define RAINDROP_COUNT           512

#define CELL_BITS_SIZE           0x0003
#define CELL_BITS_TYPE           0x03fc
#define CELL_BITS_SCALE          0x0400
#define CELL_BITS_SHEAR          0x0800
#define CELL_BITS_SCALE_PHASE    0x1000
#define CELL_BITS_SHEAR_PHASE    0x2000

void DrawBG(int width, int height, int left, int right, int verse);
void InitBG(void);
void UninitBG(void);


#endif