-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathasteroid.py
30 lines (23 loc) · 1023 Bytes
/
asteroid.py
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
29
from circleshape import CircleShape
import pygame
import random
from constants import ASTEROID_MIN_RADIUS
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: # handle smallest asteroids
return
else:
random_angle = random.uniform(20, 50)
# send the two new asteroids in different directions
velocity1 = self.velocity.rotate(random_angle)
velocity2 = self.velocity.rotate(-random_angle)
new_radius = self.radius - ASTEROID_MIN_RADIUS
Asteroid(self.position.x, self.position.y, new_radius).velocity = velocity1 * 1.2
Asteroid(self.position.x, self.position.y, new_radius).velocity = velocity2 * 1.2