1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
import random
from circleshape import *
from constants import *
class Asteroid(CircleShape):
def __init__(self, x, y, radius):
super().__init__(x, y, radius)
def draw(self, screen):
pygame.draw.circle(screen, "white", self.position, self.radius, 2)
def update(self, dt):
self.position += self.velocity * dt
def split(self):
self.kill()
if self.radius <= ASTEROID_MIN_RADIUS:
return
rand_angle = random.uniform(20, 50)
new_radius = self.radius - ASTEROID_MIN_RADIUS
a = self.velocity.rotate(rand_angle)
b = self.velocity.rotate(-rand_angle)
asteroid = Asteroid(self.position.x, self.position.y, new_radius)
asteroid.velocity = a * 1.2
asteroid = Asteroid(self.position.x, self.position.y, new_radius)
asteroid.velocity = b * 1.2
|
