from pygame.locals import *
from pygame import mixer
import pygame
import pickle
from os import path

pygame.mixer.pre_init(44100, -16, 2, 512)
mixer.init()
pygame.init()

clock = pygame.time.Clock()
fps = 60

screen_width = 1000
screen_height = 1000

screen = pygame.display.set_mode((screen_width, screen_height))
pygame.display.set_caption('Platformer')

font = pygame.font.SysFont('Bauhaus 93', 70)
font_score = pygame.font.SysFont('Bauhaus 93', 30)

tile_size = 50
game_over = 0
main_menu = True
level = 3
max_levels = 7
score = 0

white = (255, 255, 255)
blue = (0, 0, 255)

# load images (no 'img/' prefix)
sun_img = pygame.image.load('sun (1).png')
bg_img = pygame.image.load('forest.png')
restart_img = pygame.image.load('restart_btn.png')
start_img = pygame.image.load('start_btn.png')
exit_img = pygame.image.load('exit_btn.png')

# load sounds (no 'img/' prefix)
pygame.mixer.music.load('music.wav')
pygame.mixer.music.play(-1, 0.0, 5000)
coin_fx = pygame.mixer.Sound('coin.wav')
coin_fx.set_volume(0.5)
jump_fx = pygame.mixer.Sound('jump.wav')
jump_fx.set_volume(0.5)
game_over_fx = pygame.mixer.Sound('game_over.wav')
game_over_fx.set_volume(0.5)

def draw_text(text, font, text_col, x, y):
    img = font.render(text, True, text_col)
    screen.blit(img, (x, y))

def reset_level(level):
    player.reset(100, screen_height - 130)
    blob_group.empty()
    platform_group.empty()
    coin_group.empty()
    lava_group.empty()
    exit_group.empty()
    if path.exists(f'level{level}_data'):
        pickle_in = open(f'level{level}_data', 'rb')
        world_data = pickle.load(pickle_in)
    world = World(world_data)
    score_coin = Coin(tile_size // 2, tile_size // 2)
    coin_group.add(score_coin)
    return world

class Button():
    def __init__(self, x, y, image):
        self.image = image
        self.rect = self.image.get_rect()
        self.rect.x = x
        self.rect.y = y
        self.clicked = False

    def draw(self):
        action = False
        pos = pygame.mouse.get_pos()
        if self.rect.collidepoint(pos):
            if pygame.mouse.get_pressed()[0] == 1 and not self.clicked:
                action = True
                self.clicked = True
        if pygame.mouse.get_pressed()[0] == 0:
            self.clicked = False
        screen.blit(self.image, self.rect)
        return action

class Player():
    def __init__(self, x, y):
        self.reset(x, y)

    def update(self, game_over):
        dx = 0
        dy = 0
        walk_cooldown = 5
        col_thresh = 20

        if game_over == 0:
            key = pygame.key.get_pressed()
            if key[pygame.K_SPACE] and not self.jumped and not self.in_air:
                jump_fx.play()
                self.vel_y = -15
                self.jumped = True
            if not key[pygame.K_SPACE]:
                self.jumped = False
            if key[pygame.K_LEFT]:
                dx -= 5
                self.counter += 1
                self.direction = -1
            if key[pygame.K_RIGHT]:
                dx += 5
                self.counter += 1
                self.direction = 1
            if not (key[pygame.K_LEFT] or key[pygame.K_RIGHT]):
                self.counter = 0
                self.index = 0
                self.image = self.images_right[self.index] if self.direction == 1 else self.images_left[self.index]

            if self.counter > walk_cooldown:
                self.counter = 0
                self.index = (self.index + 1) % len(self.images_right)
                self.image = self.images_right[self.index] if self.direction == 1 else self.images_left[self.index]

            self.vel_y = min(self.vel_y + 1, 10)
            dy += self.vel_y

            self.in_air = True
            for tile in world.tile_list:
                if tile[1].colliderect(self.rect.x + dx, self.rect.y, self.width, self.height):
                    dx = 0
                if tile[1].colliderect(self.rect.x, self.rect.y + dy, self.width, self.height):
                    if self.vel_y < 0:
                        dy = tile[1].bottom - self.rect.top
                        self.vel_y = 0
                    elif self.vel_y >= 0:
                        dy = tile[1].top - self.rect.bottom
                        self.vel_y = 0
                        self.in_air = False

            if pygame.sprite.spritecollide(self, blob_group, False) or pygame.sprite.spritecollide(self, lava_group, False):
                game_over = -1
                game_over_fx.play()

            if pygame.sprite.spritecollide(self, exit_group, False):
                game_over = 1

            for platform in platform_group:
                if platform.rect.colliderect(self.rect.x + dx, self.rect.y, self.width, self.height):
                    dx = 0
                if platform.rect.colliderect(self.rect.x, self.rect.y + dy, self.width, self.height):
                    if abs((self.rect.top + dy) - platform.rect.bottom) < col_thresh:
                        self.vel_y = 0
                        dy = platform.rect.bottom - self.rect.top
                    elif abs((self.rect.bottom + dy) - platform.rect.top) < col_thresh:
                        self.rect.bottom = platform.rect.top - 1
                        self.in_air = False
                        dy = 0
                    if platform.move_x != 0:
                        self.rect.x += platform.move_direction

            self.rect.x += dx
            self.rect.y += dy

        elif game_over == -1:
            self.image = self.dead_image
            draw_text('GAME OVER!', font, blue, (screen_width // 2) - 200, screen_height // 2)
            if self.rect.y > 200:
                self.rect.y -= 5

        screen.blit(self.image, self.rect)
        return game_over

    def reset(self, x, y):
        self.images_right = []
        self.images_left = []
        self.index = 0
        self.counter = 0
        for num in range(1, 5):
            img_right = pygame.image.load(f'guy{num}.png')
            img_right = pygame.transform.scale(img_right, (40, 80))
            img_left = pygame.transform.flip(img_right, True, False)
            self.images_right.append(img_right)
            self.images_left.append(img_left)
        self.dead_image = pygame.image.load('ghost.png')
        self.image = self.images_right[self.index]
        self.rect = self.image.get_rect()
        self.rect.x = x
        self.rect.y = y
        self.width = self.image.get_width()
        self.height = self.image.get_height()
        self.vel_y = 0
        self.jumped = False
        self.direction = 0
        self.in_air = True

class World():
    def __init__(self, data):
        self.tile_list = []
        dirt_img = pygame.image.load('dirt.png')
        grass_img = pygame.image.load('grass.png')

        for row_index, row in enumerate(data):
            for col_index, tile in enumerate(row):
                x = col_index * tile_size
                y = row_index * tile_size
                if tile == 1:
                    img = pygame.transform.scale(dirt_img, (tile_size, tile_size))
                    self.tile_list.append((img, img.get_rect(topleft=(x, y))))
                elif tile == 2:
                    img = pygame.transform.scale(grass_img, (tile_size, tile_size))
                    self.tile_list.append((img, img.get_rect(topleft=(x, y))))
                elif tile == 3:
                    blob_group.add(Enemy(x, y + 15))
                elif tile == 4:
                    platform_group.add(Platform(x, y, 1, 0))
                elif tile == 5:
                    platform_group.add(Platform(x, y, 0, 1))
                elif tile == 6:
                    lava_group.add(Lava(x, y + tile_size // 2))
                elif tile == 7:
                    coin_group.add(Coin(x + tile_size // 2, y + tile_size // 2))
                elif tile == 8:
                    exit_group.add(Exit(x, y - tile_size // 2))

    def draw(self):
        for tile in self.tile_list:
            screen.blit(tile[0], tile[1])

class Enemy(pygame.sprite.Sprite):
    def __init__(self, x, y):
        super().__init__()
        self.image = pygame.image.load('blob.png')
        self.rect = self.image.get_rect(topleft=(x, y))
        self.move_direction = 1
        self.move_counter = 0

    def update(self):
        self.rect.x += self.move_direction
        self.move_counter += 1
        if abs(self.move_counter) > 50:
            self.move_direction *= -1
            self.move_counter *= -1

class Platform(pygame.sprite.Sprite):
    def __init__(self, x, y, move_x, move_y):
        super().__init__()
        img = pygame.image.load('log.png')
        self.image = pygame.transform.scale(img, (tile_size, tile_size // 2))
        self.rect = self.image.get_rect(topleft=(x, y))
        self.move_direction = 1
        self.move_counter = 0
        self.move_x = move_x
        self.move_y = move_y

    def update(self):
        self.rect.x += self.move_direction * self.move_x
        self.rect.y += self.move_direction * self.move_y
        self.move_counter += 1
        if abs(self.move_counter) > 50:
            self.move_direction *= -1
            self.move_counter *= -1

class Lava(pygame.sprite.Sprite):
    def __init__(self, x, y):
        super().__init__()
        img = pygame.image.load('water.png')
        self.image = pygame.transform.scale(img, (tile_size, tile_size // 2))
        self.rect = self.image.get_rect(topleft=(x, y))

class Coin(pygame.sprite.Sprite):
    def __init__(self, x, y):
        super().__init__()
        img = pygame.image.load('coin.png')
        self.image = pygame.transform.scale(img, (tile_size // 2, tile_size // 2))
        self.rect = self.image.get_rect(center=(x, y))

class Exit(pygame.sprite.Sprite):
    def __init__(self, x, y):
        super().__init__()
        img = pygame.image.load('exit.png')
        self.image = pygame.transform.scale(img, (tile_size, int(tile_size * 1.5)))
        self.rect = self.image.get_rect(topleft=(x, y))

player = Player(100, screen_height - 130)
blob_group = pygame.sprite.Group()
platform_group = pygame.sprite.Group()
lava_group = pygame.sprite.Group()
coin_group = pygame.sprite.Group()
exit_group = pygame.sprite.Group()
score_coin = Coin(tile_size // 2, tile_size // 2)
coin_group.add(score_coin)

if path.exists(f'level{level}_data'):
    with open(f'level{level}_data', 'rb') as pickle_in:
        world_data = pickle.load(pickle_in)
world = World(world_data)

restart_button = Button(screen_width // 2 - 50, screen_height // 2 + 100, restart_img)
start_button = Button(screen_width // 2 - 350, screen_height // 2, start_img)
exit_button = Button(screen_width // 2 + 150, screen_height // 2, exit_img)

run = True
while run:
    clock.tick(fps)
    screen.blit(bg_img, (0, 0))
    screen.blit(sun_img, (100, 100))

    if main_menu:
        if exit_button.draw():
            run = False
        if start_button.draw():
            main_menu = False
    else:
        world.draw()

        if game_over == 0:
            blob_group.update()
            platform_group.update()
            if pygame.sprite.spritecollide(player, coin_group, True):
                score += 1
                coin_fx.play()
            draw_text('X ' + str(score), font_score, white, tile_size - 10, 10)

        blob_group.draw(screen)
        platform_group.draw(screen)
        lava_group.draw(screen)
        coin_group.draw(screen)
        exit_group.draw(screen)

        game_over = player.update(game_over)

        if game_over == -1:
            if restart_button.draw():
                world_data = []
                world = reset_level(level)
                game_over = 0
                score = 0

        if game_over == 1:
            level += 1
            if level <= max_levels:
                world_data = []
                world = reset_level(level)
                game_over = 0
            else:
                draw_text('YOU WIN!', font, blue, (screen_width // 2) - 140, screen_height // 2)
                if restart_button.draw():
                    level = 1
                    world_data = []
                    world = reset_level(level)
                    game_over = 0
                    score = 0

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            run = False

    pygame.display.update()

pygame.quit()