def update(self, delta):
self.age += delta
if self.lifetime and self.age >= self.lifetime:
entity_control.kill_entity(self.id)
return None
self.pos = self.pos + self.velocity*delta
def collide(self, target_id, contact_pnt):
if entity_control.get_entity(target_id).type == 'enemy':
entity_control.kill_entity(self.id)
