save project

snake.py

@@ -7,11 +7,15 @@ pygame.init()
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
 FPSCLOCK = pygame.time.Clock()
+
 # 背景
 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
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
@@ -32,7 +36,17 @@ while True:
                 setheading = "up"
             if event.key == locals.K_DOWN and setheading !="up":
                 setheading = "down"
-    x += 30 
+
+
+
+    if setheading == "right":
+        x += 30
+    elif setheading == "left":
+        x -= 30
+    elif setheading == "up":
+        y -= 30
+    else:
+        y += 30
     position.append((x, y))
     position.pop(0)
     # 将背景图画上去