import pygame, sys, random

from pygame.sprite import AbstractGroup

class Crosshair(pygame.sprite.Sprite):
    def __init__(self, picture_path):
        super().__init__()
        self.image = pygame.image.load(picture_path)
        self.rect = self.image.get_rect()
        self.gunshot = pygame.mixer.Sound("assets/gunshot.mp3")
    def shoot(self):
        self.gunshot.play()
        pygame.sprite.spritecollide(crosshair,target_group,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(picture_path)
        self.rect = self.image.get_rect()
        self.rect.center = [pos_x,pos_y]

# General setup
pygame.init()
clock = pygame.time.Clock()

# Game Screen
screen_width = 1920
screen_height = 1080
screen = pygame.display.set_mode((screen_width,screen_height))
background = pygame.image.load("projectfolder/bg_blue.png").convert()
pygame.mouse.set_visible(False)

# Crosshair
crosshair = Crosshair("projectfolder/crosshair_white_large.png")
crosshair_group = pygame.sprite.Group()
crosshair_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_group = pygame.sprite.Group()
for target in range(20):
    new_target = Target("projectfolder/target_red3.png",random.randrange(0,screen_width),random.randrange(0,screen_height))
    target_group.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()
                # 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()))


    screen.blit(background,(0,0))  # Draw the background image on the screen
    target_group.draw(screen)  # Draw the targets on the screen
    crosshair_group.draw(screen)  # Draw the crosshair on the screen
    crosshair_group.update()  # Update the crosshair position
    pygame.display.flip()  # Update the display
    clock.tick(60)  # Limit the frame rate to 60 frames per second