asteroids template

asteroids.py

import pygame
from math import sin, cos, radians

class Asteroid:
  def __init__(self, x, y):
    self.shape = None
    self.position = (x,y)


class Ship:
  def __init__(self, x, y):
    self.direction = 0
    self.speed = 0.0
    self.drag = 0.005
    self.shape = [(0, 10), (-5, -5), (-5, 5)]
    self.position = (x, y)

  def draw(self, screen):
    rotatedShape = []
    for point in self.shape:
      x, y = point
      x = x * cos(radians(self.direction)) - y * sin(radians(self.direction))
      y = x * sin(radians(self.direction)) + y * sin(radians(self.direction))
      rotatedShape.append((x,y))
    relativeShape = [(x + self.position[0], y + self.position[1]) for x, y in rotatedShape]
    pygame.draw.polygon(screen, (255,255,255), relativeShape, 1)

  def accelerate(self, accel, dt):
    self.speed -= accel*dt
    x, y = self.position
    x += cos(radians(self.direction)) * self.speed
    y += sin(radians(self.direction)) * self.speed
    self.position = (x, y)

  def rotate(self, amount):
    pass

class Bullet:
  def __init__(self, x, y, direction):
    self.position = (x, y)
    self.speed = 10
    self.direction = direction

  def draw(self, screen):
    pass

  def update(self, dt):
    x, y = self.position
    x += cos(radians(self.direction)) * self.speed
    y += sin(radians(self.direction)) * self.speed
    self.position = (x, y)