static inline unsigned long getMapYsize()
 {
     return( (unsigned long) (main_map.getYsize()) );
 }
 static inline void getMapSize(iXY *map_size)
 {
     map_size->x = main_map.getXsize();
     map_size->y = main_map.getYsize();
 }
 static inline iXY getMapSize()
 {
     return( iXY( main_map.getXsize(), main_map.getYsize() ) );
 }
 static inline void getMapPointSize(iXY *map_size)
 {
     map_size->x = main_map.getXsize() * tile_set.getTileXsize();
     map_size->y = main_map.getYsize() * tile_set.getTileYsize();
 }