save project

snake.py

@@ -13,6 +13,8 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
+up =pygame.image.load('up.png')
+down =pygame.image.load('down.png')
 
 x,y=240,120
 position=[(180,90),(180,120),(210,120),(x,y)]
@@ -22,10 +24,30 @@ while True:
         if event.type == locals.QUIT:
 
            exit()
-    
+        elif event.type==locals.KEYDOWN:
+            if  event.key==locals.K_RIGHT and setheading != 'left':
+                setheading='right'
+                snak.head=right
+            if  event.key==locals.K_LEFT and setheading != 'right':
+                setheading='left'
+                snak.head=left
+            if  event.key==locals.K_UP and setheading != 'down':
+                setheading='up'
+                snak.head=up
+            if  event.key==locals.K_DOWN and setheading != 'up':
+                setheading='down'
+                snak.head=down
+if setheading=='right':
     x+=30
+elif setheading=='left':
+    x-=30
+elif setheading=='up':
+    y-=30
+else :
+    y+=30
+
     position.append(x,y)
-    position.pop()
+    position.pop(0)
 
     screen.blit(background, (0, 0))