main.py

import pygame
from pygame.locals import *
import pickle

pygame.init()

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

screen_width = 700
screen_height = 700

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

#game variables
tile_size = 50
game_over = 0
main_menu = True

#image
sun_img = pygame.image.load('img/sun.png')
bg_img = pygame.image.load('img/sky.png')
restart_img = pygame.image.load('img/sbtnrestart.png')
start_img = pygame.image.load('img/start_btn.png')
exit_img = pygame.image.load('img/exit_btn.png')

#def grid():
 #   for line in range(0, 20):
  #      pygame.draw.line(screen, (255, 255, 255), (0, line * tile_size), (screen_width, line * tile_size))
   #     pygame.draw.line(screen, (255, 255, 255), (line * tile_size, 0), (line * tile_size, screen_height))
   
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 self.clicked == False:
                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 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'img/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('img/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
        
    def update(self, game_over):
        
        dx = 0
        dy = 0
        walk_cooldown = 5
        
        if game_over == 0:
            #key
            key = pygame.key.get_pressed()
            if key[pygame.K_UP] and self.jumped == False and self.in_air == False:
                self.vel_y = -15
                self.jumped = True
                
            if key[pygame.K_UP] == False:
                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 key[pygame.K_LEFT] == False and key[pygame.K_RIGHT] == False:
                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]
                
            #handle
            
            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]
        
                
            #gravity
            self.vel_y += 1
            if self.vel_y > 10:
                self.vel_y = 10
            dy += self.vel_y
            
            #coliision
            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
                    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
                
            if pygame.sprite.spritecollide(self, lava_group, False):
                game_over = -1
                        
        #update player coordinates
            self.rect.x += dx
            self.rect.y += dy
        
        
        elif game_over == -1:
            self.image = self.dead_image
            if self.rect.y > 200:
                self.rect.y -= 5

        #player
        screen.blit(self.image, self.rect)

        return game_over
class World():
    def __init__(self, data):
        self.tile_list = []
        #img
        dirt_img = pygame.image.load('img/dirt.png')
        grass_img = pygame.image.load('img/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 == 6:
                    lava = Lava(col_count * tile_size, row_count * tile_size + (tile_size // 2))
                    lava_group.add(lava)
                col_count += 1
            row_count += 1
    
    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):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.image.load('img/blob.png')
        self.rect = self.image.get_rect()
        self.rect.x = x
        self.rect.y = 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 Lava(pygame.sprite.Sprite):
    def __init__(self, x, y):
        pygame.sprite.Sprite.__init__(self)
        img = pygame.image.load('img/lava.png')
        self.image = pygame.transform.scale(img, (tile_size, tile_size // 2))
        self.rect  = self.image.get_rect()
        self.rect.x = x
        self.rect.y = y
    
world_data = [
    [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
    [1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1],
    [1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1],
    [1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1],
    [1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1],
    [1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1],
    [1, 0, 0, 0, 0, 3, 0, 0, 3, 0, 0, 0, 0, 1],
    [1, 0, 0, 0, 2, 2, 2, 2, 2, 2, 0, 0, 0, 1],
    [1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1],
    [1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 1],
    [1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1],
    [1, 0, 0, 0, 0, 2, 6, 6, 6, 2, 0, 0, 0, 1],
    [1, 0, 0, 2, 2, 1, 1, 1, 1, 1, 0, 0, 0, 1],
    [1, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
]        


player = Player(100, screen_height - 130)
blob_group = pygame.sprite.Group()
lava_group = pygame.sprite.Group()
world = World(world_data)
restart_button = Button(screen_width // 2 - 60, screen_height // 2 -200, restart_img)

start_button = Button(screen_width // 2 -300, screen_height // 2, start_img)
exit_button = Button(screen_width // 2 +60, 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 == True:
        if exit_button.draw():
            run = False
        if start_button.draw():
            main_menu = False
    else:
        world.draw()
            
        if game_over == 0:
            blob_group.update()
        
        lava_group.draw(screen)
        blob_group.draw(screen)
        game_over = player.update(game_over)
        
        if game_over == -1:
            if restart_button.draw():
                player.reset(100, screen_height - 130)
                game_over = 0
        
    #grid()
    
    
    
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            run = False
    
    pygame.display.update()
            
pygame.quit()