import pygame,sys,random

class Crosshair(pygame.sprite.Sprite):
    def __init__(self,pos_x,pos_y,image):
        super().__init__()
        self.image = pygame.image.load(image)
        self.rect = self.image.get_rect()
        self.rect.topleft = [pos_x,pos_y]
        self.gunshot = pygame.mixer.Sound("gunshot.wav")
    def update(self):
        self.rect.center = pygame.mouse.get_pos()
    def shoot(self):
        self.gunshot.play()
        pygame.sprite.spritecollide(crosshair,target_sprites,True)

class Target(pygame.sprite.Sprite):
    def __init__(self,picture_path,pos_x,pos_y):
        super().__init__()
        self.image = pygame.image.load(picture_path)
        self.rect = self.image.get_rect()
        self.rect.x = pos_x
        self.rect.y = pos_y


pygame.init()
clock = pygame.time.Clock()

screen_width = 1920
screen_height = 1080
screen = pygame.display.set_mode((screen_width,screen_height))
pygame.display.set_caption("Sprites")
background = pygame.image.load("BG.png")
pygame.mouse.set_visible(False)

crosshair = Crosshair(200,200,"crosshair.png")
player_group = pygame.sprite.Group()
player_group.add(crosshair)

target_sprites = pygame.sprite.Group()
for target in range(50):
    new_target = Target("target.png",random.randrange(0,screen_width),random.randrange(0,screen_height))
    target_sprites.add(new_target)

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()
        if event.type == pygame.MOUSEBUTTONDOWN:
            crosshair.shoot()

    screen.blit(background, (0,0))
    target_sprites.draw(screen)
    player_group.draw(screen)
    player_group.update()
    clock.tick(60)