34 lines
979 B
Python
34 lines
979 B
Python
|
import random
|
||
|
|
import pygame
|
||
|
|
from circleshape import CircleShape
|
||
|
|
from constants import ASTEROID_MIN_RADIUS
|
||
|
|
|
||
|
|
|
||
|
|
class Asteroid(CircleShape):
|
||
|
|
def __init__(self, x, y, radius) -> None:
|
||
|
|
super().__init__(x, y, radius)
|
||
|
|
|
||
|
|
def draw(self, screen) -> None:
|
||
|
|
pygame.draw.circle(screen, "white", self.position, self.radius, 2)
|
||
|
|
|
||
|
|
def update(self, dt: int):
|
||
|
|
self.position += self.velocity * dt
|
||
|
|
|
||
|
|
def split(self):
|
||
|
|
self.kill()
|
||
|
|
|
||
|
|
if self.radius <= ASTEROID_MIN_RADIUS:
|
||
|
|
return
|
||
|
|
|
||
|
|
new_radius = self.radius - ASTEROID_MIN_RADIUS
|
||
|
|
|
||
|
|
random_angle = random.uniform(20, 50)
|
||
|
|
vec_0 = self.velocity.rotate(random_angle)
|
||
|
|
vec_1 = self.velocity.rotate(-random_angle)
|
||
|
|
|
||
|
|
new_asteroid_0 = Asteroid(self.position.x, self.position.y, new_radius)
|
||
|
|
new_asteroid_0.velocity = vec_0 * 1.2
|
||
|
|
|
||
|
|
new_asteroid_1 = Asteroid(self.position.x, self.position.y, new_radius)
|
||
|
|
new_asteroid_1.velocity = vec_1 * 1.2
|