import pygame, sys, random 

class Crosshair(pygame.sprite.Sprite):
    def __init__(self, pos_x, pos_y, picture_path):
        super().__init__()
        self.image = pygame.image.load('crosshair.png')
        self.rect = self.image.get_rect()
        self.rect.x = pos_x
        self.rect.x = pos_y
        self.gunshoot = pygame.mixer.Sound("gunshoot.wav")
    def shoot(self):
        self.gunshoot.play()
        pygame.sprite.spritecollide(crosshair,target_sprites,True)
    def update(self):
        self.rect.center = pygame.mouse.get_pos()

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

class GameState():
    def __init__(self):
        self.state = 'intro'

    def intro(self):
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                pygame.QUIT()
                sys.exit()
            if event.type == pygame.MOUSEBUTTONDOWN:
                self.state = 'main_game'
        
    def mian_game(self):
         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))
            screen.blit(ready_text,(screen_width/2 -115 ,screen_height/2 - 33))
            player_group.draw(screen)
            player_group.update()
            pygame.display.flip()

                # Draw background tiles
            for y in range(num_tiles_y):
                for x in range(num_tiles_x):
                    screen.blit(background, (x * background.get_width(), y * background.get_height()))


    def state_manager(self):
            if self.state == 'intro':
                self.intro()
            if self.state == 'main_game':
                self.mian_game()

#general setup
pygame.init()
clock = pygame.time.Clock()
Game_state = GameState()

#game screen
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")
ready_text = pygame.image.load("ready_text.png")
pygame.mouse.set_visible(False)



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

# Calculate number of tiles needed to cover the screen
num_tiles_x = (screen_width // background.get_width()) + 1
num_tiles_y = (screen_height // background.get_height()) + 1


#target
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:
    Game_state.state_manager()
    clock.tick(60)