public void execute() {
notifyBefore();
MapData mapData = Game.getMapData();
if (mapData.isMapObjectDamagable(damagableMO)) {
DamagableMapObject mo = (DamagableMapObject)(mapData.getMapObject(damagableMO));
mo.setHealth(health);
} else {
throw new ClassCastException("SetMapObjectHealth must be feeded with"
+ " the id of a DamagableMapObject!!!");
}