import pygame, sys, math, random

class Player(pygame.sprite.Sprite):
    def __init__(self):
        super().__init__()
        self.image = pygame.Surface((40,40))
        self.rect = self.image.get_rect(center = (screen_width/2,screen_height/2))


    def create_bullet(self):
            return Bullet(pygame.mouse.get_pos()[0],pygame.mouse.get_pos()[1])

class Bullet(pygame.sprite.Sprite):
    def __init__(self,pos_x,pos_y):
        super().__init__()
        self.image = pygame.Surface((50,10))
        self.image.fill((255,0,0))
        self.rect = self.image.get_rect(center = (pos_x,pos_y))

    def update(self):
        self.rect.x += 30
    
        if self.rect.x >= screen + 200:
                self.kill()

pygame.init()

clock = pygame.time.Clock()
screen_width, screen_height = 1900,1060
screen = pygame.display.set_mode((screen_width, screen_height))
standing_surface = pygame.transform.scale(pygame.image.load("mario_stand_8bit.png"), (48, 64))
jumping_surface = pygame.transform.scale(pygame.image.load("mario_jump_8bit.png"), (48, 64))
background = pygame.image.load("menu_background_space.jpg")
pygame.display.set_caption("Moving rectangle")
pygame.mouse.set_visible(False)


pos_x, pos_y = 920, 800


width = 40
height = 40

vel = 15

jumping = False
y_gravity = 1
jump_height = 20 
y_velocity = jump_height

player = Player()
player_group = pygame.sprite.Group()
player_group.add(player)

bullet_group = pygame.sprite.Group()

player_rect = standing_surface.get_rect(center = (pos_x, pos_y))

while True: 
    pygame.time.delay(10)
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()
    

        if event.type == pygame.MOUSEBUTTONDOWN:
            bullet_group.add(player.create_bullet())

    keys_pressed = pygame.key.get_pressed()

    if keys_pressed[pygame.K_SPACE]:
        jumping = True

        screen.blit(background, (0, 0))

    if jumping:
        pos_y -= y_velocity
        y_velocity -= y_gravity
        if y_velocity < -jump_height:
            jumping = False
            y_velocity = jump_height
        player_rect = jumping_surface.get_rect(center=(pos_x, pos_y))
        screen.blit(jumping_surface, player_rect)
    else:
        player_rect = standing_surface.get_rect(center=(pos_x, pos_y))
        screen.blit(standing_surface, player_rect)

        if keys_pressed[pygame.K_a] and pos_x > 0:

            pos_x -= vel

        if keys_pressed[pygame.K_d] and pos_x < 1900 - width:

            pos_x += vel

    screen.blit(background, (0, 0))  
    bullet_group.draw(screen)
    pygame.draw.rect(screen, (0,255,0),(pos_x, pos_y, width, height))
    bullet_group.update()
    pygame.display.update()
    pygame.display.flip()
    clock.tick(120)