save project

snake.py

@@ -7,17 +7,42 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
+left = pygame.image.load('left.png')
+up = pygame.image.load('up.png')
+down = pygame.image.load('down.png')
 x,y=240,120
 a=[(180,90),(180,120),(210,120),(x,y)]
+setheading='right'
+snake_head=right
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             exit()
+        elif event.type == locals.KEYDOWN:
+            if event.key== locals.K_RIGHT and setheading !='left':
+                setheading='right'
+                snake_head=right
+            if event.key== locals.K_LEFT and setheading !='right':
+                setheading='left'
+                snake_head=left
+            if event.key== locals.K_DOWN and setheading !='up':
+                setheading='down'
+                snake_head=down
+            if event.key== locals.K_UP and setheading !='down':
+                setheading='up'
+                snake_head=up
+    if setheading=='right':
         x+=30
+    elif setheading=='left':
+        x-=30
+    elif setheading=='up':
+        y-=30
+    else:
+        y+=30
     a.append((x,y))
     a.pop(0)
     screen.blit(background, (0, 0))
-    screen.blit(right,a[-1])
+    screen.blit(snake_head,a[-1])
     for i in range(len(a)-1):
         screen.blit(body,a[i])
     screen.blit(food, (360, 300))