#-----------------------------------------------------------------------------
# Name: Platformer
# Purpose: 11DGT
# Author: Shaun Zeldenrust
# Created: 6/6/2024
# finished: 24/6/2024
# Copyright: @ Shaun Zeldenrust 2024
#-----------------------------------------------------------------------------


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

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

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

# Set screen dimensions
screen_width = 1000
screen_height = 1000

# Create the display surface object
screen = pygame.display.set_mode((screen_width, screen_height))
pygame.display.set_caption('Platformer')

#define font
font = pygame.font.SysFont('bauhaus 93', 70)
font_score = pygame.font.SysFont('bauhaus 93', 30)

# Game variables
tile_size = 50
game_over = 0
main_menu = True
level = 1
max_levels = 7
score = 0
base_speed = 5

#define colours
white = (255, 255, 255)
blue = (0, 0, 255)

# Load images
bg_image = pygame.image.load('Platformer assets/sky.png')  # Load background image
bg_image = pygame.transform.scale(bg_image, (screen_width, screen_height))
restart_img = pygame.image.load('Platformer assets/restart_btn.png')  # Load restart button image
start_img = pygame.image.load('Platformer assets/start_btn.png')  # Load start button image
exit_img = pygame.image.load('Platformer assets/exit_btn.png')  # Load exit button image

# Load sounds
pygame.mixer.music.load('Platformer assets/music.wav')
pygame.mixer.music.play(1, 0.0, 5000)
coin_sound = pygame.mixer.Sound('Platformer assets/coin.wav')
coin_sound.set_volume(0.5)
jump_sound = pygame.mixer.Sound('Platformer assets/jump.wav')
jump_sound.set_volume(0.5)
Game_over_sound = pygame.mixer.Sound('Platformer assets/game_over.wav')
Game_over_sound.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()
    lava_group.empty()
    exit_group.empty()
   
    level_data_path = f'level{level}_data'
    if path.exists(level_data_path):
        with open(level_data_path, 'rb') as pickle_in:
            world_data = pickle.load(pickle_in)
    else:
        print(f"Warning: Level data file {level_data_path} does not exist. Using default world data.")
        world_data = []  # Initialize with default or empty data if file is missing
   
    world = World(world_data)
    return world

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

    # Draw button on screen and check for click
    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:
                self.clicked = True
                action = True

        if pygame.mouse.get_pressed()[0] == 0:
            self.clicked = False

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

# Define Player class
class Player():
    def __init__(self, x, y):
        self.images_right = []
        self.images_left = []
        self.index = 0
        self.counter = 0
        self.base_speed = 5
        self.current_speed = self.base_speed
        self.base_jump = -17
        self.current_jump = self.base_jump

        for num in range(1, 5):
            img_right = pygame.image.load(f'Platformer assets/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('Platformer assets/ghost.png')
        self.image = self.images_right[self.index]
        self.rect = self.image.get_rect()
        self.rect.topleft = (x, 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

    # Update player state
    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_sound.play()
                self.vel_y = self.current_jump
                self.jumped = True
            if not key[pygame.K_SPACE]:
                self.jumped = False
            if key[pygame.K_LEFT]:
                dx -= self.current_speed
                self.counter += 1
                self.direction = -1
            if key[pygame.K_RIGHT]:
                dx += self.current_speed
                self.counter += 1
                self.direction = 1
            if not key[pygame.K_LEFT] and not key[pygame.K_RIGHT]:
                self.counter = 0
                self.index = 0
                if self.direction == 1:
                    self.image = self.images_right[self.index]
                if self.direction == -1:
                    self.image = self.images_left[self.index]

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

            self.vel_y += 1
            if self.vel_y > 10:
                self.vel_y = 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):
                game_over = -1
                Game_over_sound.play()
            if pygame.sprite.spritecollide(self, lava_group, False):
                game_over = -1
                Game_over_sound.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

    # Reset player state
    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'Platformer assets/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('Platformer assets/ghost.png')
        self.image = self.images_right[self.index]
        self.rect = self.image.get_rect()
        self.rect.topleft = (x, 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
        self.current_speed = self.base_speed
        self.current_jump = self.base_jump

    def update_jump_height(self, coins):
        # Decrease jump height by half for every 10 coins collected
        self.current_jump = self.base_jump / (2 ** (coins // 10))

# Define World class
class World():
    def __init__(self, data):
        self.tile_list = []

        dirt_img = pygame.image.load('Platformer assets/dirt.png')
        grass_img = pygame.image.load('Platformer assets/grass.png')

        row_count = 0
        for row in data:
            col_count = 0
            for tile in row:
                if tile == 1:
                    img = pygame.transform.scale(dirt_img, (tile_size, tile_size))
                    img_rect = img.get_rect()
                    img_rect.x = col_count * tile_size
                    img_rect.y = row_count * tile_size
                    tile = (img, img_rect)
                    self.tile_list.append(tile)
                if tile == 2:
                    img = pygame.transform.scale(grass_img, (tile_size, tile_size))
                    img_rect = img.get_rect()
                    img_rect.x = col_count * tile_size
                    img_rect.y = row_count * tile_size
                    tile = (img, img_rect)
                    self.tile_list.append(tile)
                if tile == 3:
                    blob = Enemy(col_count * tile_size, row_count * tile_size + 15)
                    blob_group.add(blob)
                if tile == 4:
                    platform = Platform(col_count * tile_size, row_count * tile_size, 1, 0)
                    platform_group.add(platform)
                if tile == 5:
                    platform = Platform(col_count * tile_size, row_count * tile_size, 0, 1)
                    platform_group.add(platform)
                if tile == 6:
                    lava = Lava(col_count * tile_size, row_count * tile_size + (tile_size // 2))
                    lava_group.add(lava)
                if tile == 7:
                    coin = Coin(col_count * tile_size + (tile_size // 2), row_count * tile_size + (tile_size // 2))
                    coin_group.add(coin)
                if tile == 8:
                    exit = Exit(col_count * tile_size, row_count * tile_size - (tile_size // 2))
                    exit_group.add(exit)
                col_count += 1
            row_count += 1

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

# Define Enemy class
class Enemy(pygame.sprite.Sprite):
    def __init__(self, x, y):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.image.load('Platformer assets/blob.png')
        self.rect = self.image.get_rect()
        self.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

# Define Platform class
class Platform(pygame.sprite.Sprite):
    def __init__(self, x, y, move_x, move_y):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.image.load('Platformer assets/platform.png')
        self.rect = self.image.get_rect()
        self.rect.topleft = (x, y)
        self.move_counter = 0
        self.move_direction = 1
        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

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

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

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

# Create sprite groups
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()

# Initialize player and world
player = Player(100, screen_height - 130)
world_data = []
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)

# Create buttons
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)

# Main game loop
run = True
while run:
    clock.tick(fps)

    screen.blit(bg_image, (0, 0))

    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_sound.play()
                player.update_jump_height(score)  # Update player's jump height based on score

            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()