extern Bitmap *gd_screen_bitmap;
-extern const unsigned char *gd_keystate;
-
typedef unsigned int GdColor;
void set_cell_size(int s);
int get_play_area_w(void);
int get_play_area_h(void);
-void gd_init_keystate(void);
+void gd_init_play_area(void);
void gd_prepare_tile_bitmap(GdCave *cave, Bitmap *bitmap, int scale_down_factor);
void gd_set_tile_bitmap_reference(Bitmap *bitmap);