asteroids/asteroid.py at main · GroondCharge/asteroids · GitHub

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
from circleshape import CircleShape
import pygame
from constants import *
import random

class Asteroid(CircleShape):
    def __init__(self, x, y, radius):
        super().__init__(x, y, radius)
    def draw(self, screen):
        #print(width)
        pygame.draw.circle(screen, "white", self.position, self.radius, 2)
    def update(self, dt):
        self.position += self.velocity * dt
    def split(self):
        old_radius = self.radius
        self.kill()
        if self.radius <= ASTEROID_MIN_RADIUS:
            return
        angle = random.uniform(20, 50)
        random_angle1 = pygame.math.Vector2.rotate(self.velocity, angle)
        random_angle2 = pygame.math.Vector2.rotate(self.velocity, angle * -1)
        new_radius = old_radius - ASTEROID_MIN_RADIUS
        asteroid1 = Asteroid(self.position.x, self.position.y, new_radius)
        asteroid2 = Asteroid(self.position.x, self.position.y, new_radius)
        asteroid1.velocity = random_angle1 * 1.2
        asteroid2.velocity = random_angle2 * 1.2