def kill(self):
if self.tier > 1:
# Spawn two new asteroids of a tier lower
speed = self.velocity.length()
new_tier = self.tier - 1
angle1 = self.angle - self.spread
angle2 = self.angle + self.spread
asteroid1 = Asteroid(new_tier, speed, angle1, self.position)
asteroid2 = Asteroid(new_tier, speed, angle2, self.position)
Asteroid.number_destroyed += 1
Entity.kill(self)
def kill(self):
self.lasers.empty()
Entity.kill(self)