save project

snake.py

@@ -8,26 +8,52 @@ pygame.init()
 screen = pygame.display.set_mode((660, 480))
 x,y=240,120
 b=[(210,120),(180,120),(180,90),(x,y)]
+
 a=pygame.time.Clock()
 # 背景
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
+down =  pygame.image.load('down.png')
+left =  pygame.image.load('left.png')
+up =  pygame.image.load('up.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 
+s = "right"
+sh = 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
+        if event.type == locals.KEYDOWN:
+            if event.key == locals.K_RIGHT and s !="left":
+                s = "right"
+                sh = right
+            if event.key == locals.K_LEFT and s !="right":
+                s = "left"
+                sh = left
+            if event.key == locals.K_UP and s !="up":
+                s = "down"
+                sh = down
+            if event.key == locals.K_DOWN and s !="down":
+                s = "up"
+                sh = up
+    #设贪吃蛇
+    if s =="left":
+        x-=30
+    elif s == "right":
+        x+=30
+    elif s == "up":
+        y-=30
+    else :
+        y+=30
     b.append((x,y))
     b.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
-    # 将贪吃蛇画上去
-    screen.blit(right, (x, y))
+    # 将贪吃蛇头画上去
+    screen.blit(sh, (x, y))
     # 将贪吃蛇的身体画上去
     # screen.blit(body, (210, 120))
     # screen.blit(body, (180, 120))