import arcade
import math

class Bullet(arcade.Sprite):
  ls = arcade.SpriteList()
  def __init__(self,x,y,a,shift=0,power=0,owner=None):
    super().__init__(
      './assets/laserBlue01.png',
      scale=power/30)
    self.angle = a
    self.center_x = x + math.sin(self.angle * math.pi / 180) * shift
    self.center_y = y + math.cos(self.angle * math.pi / 180) * shift
    self.speed = 10
    self.power = power
    self.owner = owner
    Bullet.ls.append(self)
  def destroy(self):
    Bullet.ls.remove(self)
  
  @classmethod
  def get_colls(cls,sprite):
    return arcade.check_for_collision_with_list(sprite, cls.ls)
  @classmethod
  def update_list(cls):
    for bullet in cls.ls:
      bullet.change_x = math.sin(bullet.angle * math.pi / 180) * bullet.speed
      bullet.change_y = math.cos(bullet.angle * math.pi / 180) * bullet.speed
      bullet.update()

  @classmethod
  def draw(cls):
    cls.ls.draw()