View difference between Paste ID: SQCUKANm and pzVJ3LZg

 import pygame
 import random
 import time
 from Direction import Direction
 from Snake import Snake
 from Apple import Apple
 
 # width and height of the display
 DISPLAY_WIDTH = 800
 DISPLAY_HEIGHT = 608
-background = pygame.Surface((800, 608))
+
 # background creation
 background = pygame.Surface((DISPLAY_WIDTH, DISPLAY_HEIGHT))
 for i in range(25):
     for j in range(19):
         image = pygame.image.load("images/background.png")
         mask = (random.randrange(0, 20), random.randrange(
             0, 20), random.randrange(0, 20))
 
         image.fill(mask, special_flags=pygame.BLEND_ADD)
         background.blit(image, (i*32, j*32))
 
 # settings
 pygame.init()
 # display object and game clock
 display = pygame.display.set_mode([DISPLAY_WIDTH, DISPLAY_HEIGHT])
 clock = pygame.time.Clock()
 
 # Snake
 snake = Snake()
 MOVE_SNAKE = pygame.USEREVENT + 1
 event_timer = 200
 pygame.time.set_timer(MOVE_SNAKE, event_timer)
 
 # apples
 apple = Apple()
 apples = pygame.sprite.Group()
 apples.add(apple)
 
 game_on = True
 while game_on:
     for event in pygame.event.get():
         if event.type == pygame.KEYDOWN:
             if event.key == pygame.K_ESCAPE:
                 game_on = False
             if event.key == pygame.K_w:
                 snake.change_direction(Direction.UP)
-    # display wipe
+            if event.key == pygame.K_s:
                 snake.change_direction(Direction.DOWN)
-    # setting the FPS to 30
+            if event.key == pygame.K_a:
                 snake.change_direction(Direction.LEFT)
             if event.key == pygame.K_d:
-# 3 second sleep time
+                snake.change_direction(Direction.RIGHT)
             if event.key == pygame.K_o:
-# closing the game
+                event_timer += 10
                 pygame.time.set_timer(MOVE_SNAKE, event_timer)
             if event.key == pygame.K_p:
                 event_timer -= 10
                 pygame.time.set_timer(MOVE_SNAKE, event_timer)
 
         elif event.type == MOVE_SNAKE:
             snake.update()
         elif event.type == pygame.QUIT:
             game_on = False
 
     # drawing background
     display.blit(background, (0, 0))
     # drawing snake's head
     display.blit(snake.image, snake.rect)
     # drawing apples
     for apple in apples:
         display.blit(apple.image, apple.rect)
 
     pygame.display.flip()
     clock.tick(30)
 
 time.sleep(3)
 pygame.quit()