import pygame
import os
import random

#game_folder = os.path.dirname(__file__)
#IMG_folder = os.path.join(game_folder, 'IMG')


WIDTH = 750
HEIGHT = 1020
FPS = 60

WHITE = (255,255,255)
BLACK = (0,0,0)
RED = (255,0,0)
GREEN = (0,255,0)
BLUE = (0,0,255)
DARK_VIOLETT = (51,15,98)

class Player(pygame.sprite.Sprite):
    def __init__(self):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.Surface((50,50))
        self.image.fill(BLACK)
        self.rect = self.image.get_rect()
        self.rect.centerx = WIDTH/2
        self.rect.bottom = HEIGHT - 10
        self.speedx = 1
    def update(self):
        keystate = pygame.key.get_pressed()
        if keystate[pygame.K_LEFT]:
            self.speedx -= 10
        if keystate[pygame.K_RIGHT]:
            self.speedx += 10
        self.rect.x = self.speedx
        if self.rect.right > WIDTH:
            self.rect.right = WIDTH
        if self.rect.left <0:
            self.rect.left = 0
    def shoot(self):
        bullet = Bullet(self.rect.centerx,self.rect.top)
        all_sprites.add(bullet)
        bullets.add(bullet)
class Mob(pygame.sprite.Sprite):
    def __init__(self):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.Surface((30,40))
        self.image.fill(RED)
        self.rect = self.image.get_rect()
        self.rect.x = random.randrange(WIDTH)
        self.rect.y = random.randrange(-100,-40)
        self.speedy = random.randrange(1,8)
        self.speedx = random.randrange(-3, 3)
    def update(self):
        self.rect.y += self.speedy
        self.rect.x += self.speedx
        if self.rect.top > HEIGHT + 10 or self.rect.left <-25 or self.rect.right>WIDTH+20:
            self.rect.x = random.randrange(WIDTH)
            self.rect.y = random.randrange(-100, -40)
            self.speedy = random.randrange(1, 20)
class Bullet(pygame.sprite.Sprite):
    def __init__(self,x,y):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.Surface((1000,20))
        self.image.fill(GREEN)
        self.rect = self.image.get_rect()
        self.rect.bottom = y
        self.rect.centerx = x
        self.speedy = -10
    def update(self):
        self.rect.y += self.speedy



pygame.init()
pygame.mixer.init()
screen = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption("Моя Игра 2")
clock = pygame.time.Clock()
all_sprites = pygame.sprite.Group()
bullets = pygame.sprite.Group()
mobs = pygame.sprite.Group()
player = Player()
all_sprites.add(player)

for i in range(150):
    m = Mob()
    all_sprites.add(m)
    mobs.add(m)

running = True
while running:
    clock.tick(FPS)
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_SPACE:
                player.shoot()
    all_sprites.update()

    hits = pygame.sprite.groupcollide(bullets, mobs,  False , True    )
    for hit in  hits:
        m = Mob()
        all_sprites.add(m)
        mobs.add(m)

    hits = pygame.sprite.spritecollide(player,mobs,False)
    if hits:
        running = False

    screen.fill(DARK_VIOLETT)
    all_sprites.draw(screen)
    pygame.display.flip()

pygame.quit()