save project

snake.py

 import pygame
+import random
 from pygame import locals
-
 pygame.init()
-
+lock=pygame.time.Clock()
 screen = pygame.display.set_mode((660, 480))
 
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
+down = pygame.image.load('down.png')
+up = pygame.image.load('up.png')
+left = pygame.image.load('left.png')
+zx='right'
+cx=right
 x,y=240,120
-lock=pygame.time.Clock()
 flb=[(180,90),(180,120),(210,120),(x,y)]
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             exit()
-    screen.blit(background, (0, 0))
-    x=x+30
+        elif event.type==locals.KEYDOWN:
+            if event.key == locals.K_UP and zx!='down':
+                cx=up
+                zx='up'
+            if event.key == locals.K_DOWN and zx!='up':
+                cx=down
+                zx='down'
+            if event.key == locals.K_LEFT and zx!='right':
+                cx=left
+                zx='left'
+            if event.key == locals.K_RIGHT and zx!='left':
+                cx=right
+                zx='right'
+    
+     
+    if zx=='left':
+       x-=30
+    elif zx=='down':
+       y+=30
+    elif zx=='right':
+       x+=30
+    else:
+       y-=30
     flb.append((x,y))
     flb.pop(0)
-    screen.blit(right, (flb[-1]))
+    
+    screen.blit(background, (0, 0))
+    screen.blit(cx, (x,y))
     for i in range(len(flb)-1):
         screen.blit(body,flb[i])