For vehicles, when the callback is executed, the following parameters are passed to it:
 - (string) name of the vehicle that was damaged
 - (string) name of the character or vehicle responsible for causing the damage
 - (string) name of the event/object that caused the damage
            This can be: "car", "explosion", "bullet", "level object", "melee", "world", "human", "fire", "wind", "kneecapper", "sonic", ""
 - (int)    amount of damage applied
 - (int)    number of hit points left in the tire