save project

snake.py

@@ -4,26 +4,57 @@ x=240
 y=120
 # 初始化pygame，为使用硬件做准备
 pygame.init()
-sb=[(180,90),(180,,120),(210,120),(x,y)]
+sb=[(180,90),(180,120),(210,120),(x,y)]
 # 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')
+left = pygame.image.load('left.png')
+up = pygame.image.load('up.png')
+down = pygame.image.load('down.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
-
+setheading="right"
+a=right
 while True:
-    x=x+30 
+    if setheading=='right':
+        x+=30
+        a=right
+    elif setheading=='left':
+        x-=30
+        a=right
+    elif setheading=='up':
+        y+=30
+        a=up
+    elif setheading=='down':
+        y-=30
+        a=down
+        
+    
+    sb.append((x,y))
+    sb.pop(0)
     for event in pygame.event.get():
         if event.type == locals.QUIT:
-            # 接收到退出事件后退出程序
             exit()
+        if event.type==locals.KEYDOWN:
+            if event.key==locals.K_RIGHT and setheading !='left':
+                setheading='right'
+            if event.key==locals.K_LEFT and setheading !='right':
+                setheading='left'
+            if event.key==locals.K_UP and setheading !='down':
+                setheading='up'
+            if event.key==locals.K_DOWN and setheading !='up':
+                setheading='down'
+
+
+            # 接收到退出事件后退出程序
+            
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, (x, y))
+    screen.blit(a, (x, y))
     # 将贪吃蛇的身体画上去
     for i in range(len(sb)-1):
         screen.blit(body,sb[i])
@@ -33,5 +64,7 @@ while True:
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
-    sb.append(x,y)
-    sb.pop(0)
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+    
+
+
+   
\ No newline at end of file