cave->magic_timer_zero_is_infinite = level->bd_magic_wall_zero_infinite;
cave->magic_timer_wait_for_hatching = level->bd_magic_wall_wait_hatching;
cave->magic_wall_stops_amoeba = level->bd_magic_wall_stops_amoeba;
cave->magic_timer_zero_is_infinite = level->bd_magic_wall_zero_infinite;
cave->magic_timer_wait_for_hatching = level->bd_magic_wall_wait_hatching;
cave->magic_wall_stops_amoeba = level->bd_magic_wall_stops_amoeba;