save project

snake.py

@@ -6,50 +6,56 @@ 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=240
 y=120
 positon=[(180,90),(180,120),(210,120),(x,y)]
-FPSCLOCK=pygame.time.Clock()
+
 setheading="right"
+snake_head=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()
-        elif event.type==locals.KEYDOWN:
+        if 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_UP and setheading!="down":
                 setheading="up"
-                
+                snake_head=up
             if event.key==locals.K_DOWN and setheading!="up":
                 setheading="down"
-        if setheading == "right":
-            x += 30
-        elif setheading == "left":
-            x -= 30
-        elif setheading == "up":
-            y -= 30
-        else:
-            y += 30
+                snake_head=down
+    if setheading == "right":
+        x += 30
+    elif setheading == "left":
+        x -= 30
+    elif setheading == "up":
+        y -= 30
+    else:
+        y += 30
     positon.append((x,y))
     positon.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, positon[-1])
+    screen.blit(snake_head, positon[-1])
     # 将贪吃蛇的身体画上去
-    for i in range(3):
+    for i in range(len(positon)-1):
         screen.blit(body, positon[i])
     # 将果实画上去
     screen.blit(food, (360, 300))