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snake.py

@@ -6,27 +6,69 @@ pygame.init()
 
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
-
-# 背景
+FPSCLOCK=pygame.time.Clock()
+#_________________________________
 background = pygame.image.load('bg.png')
+down = pygame.image.load('down.png')
+up = pygame.image.load('up.png')
+left = pygame.image.load('left.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
-
+x,y=240,120
+p=[(180,90),(180,120),(210,120),(x,y)]
+s="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()
-    # 将背景图画上去
+        #_________________________________________________
+        if event.type==locals.KEYDOWN:
+            if event.key==locals.K_RIGHT and s!="left":
+                s="right"
+                
+            if event.key==locals.K_LEFT and s!="right":
+                s="left"
+            if event.key==locals.K_UP and s!="down":
+                s="up"
+            
+            if event.key==locals.K_DOWN and s!="up":
+                s="down"
+        #________________________________________________
     screen.blit(background, (0, 0))
-    # 将贪吃蛇画上去
-    screen.blit(right, (240, 120))
-    # 将贪吃蛇的身体画上去
-    screen.blit(body, (210, 120))
-    screen.blit(body, (180, 120))
-    screen.blit(body, (180, 90))
+    
+    if s=="right":
+        x=x+30
+        
+    elif s=="left":
+        x=x-30
+        
+    elif s=="up":
+        y=y-30
+        
+    else :
+        y=y+30
+        
+    p.append((x,y))
+    p.pop(0)
+    if s=="right":
+        
+        screen.blit(right, p[-1])
+    elif s=="left":
+        
+        screen.blit(left, p[-1])
+    elif s=="up":
+        
+        screen.blit(up, p[-1])
+    else :
+        
+        screen.blit(down, p[-1])
+    for i in range(len(p)-1):
+        screen.blit(body, p[i])
+    
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面
     pygame.display.update()
+    FPSCLOCK.tick(10)#________________________________-
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