save project

snake.py

@@ -12,16 +12,39 @@ 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
 i = [(180, 90), (180, 120), (210, 120), (X, Y)]
+t = "right"
+e = right
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
-    X += 30
-    i.append((X, Y))
-    i.pop(0)
+        elif event.type == locals.KEYDOWN:
+            if event.key == locals.K_RIGHT and t !="left":
+                t = "right"
+                e = right
+            if event.key == locals.K_RIGHT and t !="down":
+                t = "up"
+                e = up
+            if event.key == locals.K_RIGHT and t !="right":
+                t = "left"
+                e =  left
+            if event.key == locals.K_RIGHT and t !="up":
+                t = "down"
+                e = down
+    if t == "right":
+        x += 30
+    elif t == "left":
+        x -= 30
+    elif t == "up":
+        x -= 30
+     else:
+        y += 30
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去