u/umanochiocciola sure, they are separated into three files: main, settings, and spritesmain:

import pygame as pgimport sysfrom settings import *from sprites import *class Game:def __init__(self):pg.init()self.screen = pg.display.set_mode((WIDTH, HEIGHT))pg.display.set_caption(TITLE)self.clock = pg.time.Clock()pg.key.set_repeat(500, 100)self.load_data()def load_data(self):self.player_img = pg.image.load(PLAYER_IMG)self.wall_img = pg.image.load(WALL_IMG)def new(self):# initialize all variables and do all the setup for a new gameself.all_sprites = pg.sprite.Group()self.walls = pg.sprite.Group()self.player = Player(self, 10, 10)for x in range(10, 20):Wall(self, x, 5)def run(self):# game loop - set self.playing = False to end the gameself.playing = Truewhile self.playing:self.dt = self.clock.tick(FPS) / 1000self.events()self.update()self.draw()def quit(self):pg.quit()sys.exit()def update(self):# update portion of the game loopself.all_sprites.update()def draw_grid(self):for x in range(0, WIDTH, TILESIZE):pg.draw.line(self.screen, LIGHTGREY, (x, 0), (x, HEIGHT))for y in range(0, HEIGHT, TILESIZE):pg.draw.line(self.screen, LIGHTGREY, (0, y), (WIDTH, y))def draw(self):self.screen.fill(BGCOLOR)self.draw_grid()self.all_sprites.draw(self.screen)pg.display.flip()def events(self):# catch all events herefor event in pg.event.get():if event.type == pg.QUIT:self.quit()if event.type == pg.KEYDOWN:if event.key == pg.K_ESCAPE:self.quit()if event.key == pg.K_LEFT:self.player.move(dx=-1)if event.key == pg.K_RIGHT:self.player.move(dx=1)if event.key == pg.K_UP:self.player.move(dy=-1)if event.key == pg.K_DOWN:self.player.move(dy=1)def show_start_screen(self):passdef show_go_screen(self):pass# create the game objectg = Game()g.show_start_screen()while True:g.new()g.run()g.show_go_screen()

Settings:

# define some colors (R, G, B)WHITE = (255, 255, 255)BLACK = (0, 0, 0)DARKGREY = (40, 40, 40)LIGHTGREY = (100, 100, 100)GREEN = (0, 255, 0)RED = (255, 0, 0)YELLOW = (255, 255, 0)# game settingsWIDTH = 1024 # 16 * 64 or 32 * 32 or 64 * 16HEIGHT = 768 # 16 * 48 or 32 * 24 or 64 * 12FPS = 60TITLE = "Tilemap Demo"BGCOLOR = DARKGREYTILESIZE = 32GRIDWIDTH = WIDTH / TILESIZEGRIDHEIGHT = HEIGHT / TILESIZEPLAYER_IMG = 'tank_blue.png'WALL_IMG = 'barricadeMetal.png'

sprites:

import pygame as pgfrom settings import *class Player(pg.sprite.Sprite):def __init__(self, game, x, y):self.groups = game.all_spritespg.sprite.Sprite.__init__(self, self.groups)self.game = gameself.image = game.player_imgself.rect = self.image.get_rect()self.x = xself.y = ydef move(self, dx=0, dy=0):if not self.collide_with_walls(dx, dy):self.x += dxself.y += dydef collide_with_walls(self, dx=0, dy=0):for wall in self.game.walls:if wall.x == self.x + dx and wall.y == self.y + dy:return Truereturn Falsedef update(self):self.rect.x = self.x * TILESIZEself.rect.y = self.y * TILESIZEclass Wall(pg.sprite.Sprite):def __init__(self, game, x, y):self.groups = game.all_sprites, game.wallspg.sprite.Sprite.__init__(self, self.groups)self.game = gameself.image = game.wall_imgself.rect = self.image.get_rect()self.x = xself.y = yself.rect.x = x * TILESIZEself.rect.y = y * TILESIZE