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snake.py

@@ -5,29 +5,54 @@ from pygame import locals
 pygame.init()
 
 # 创建一个窗口
+x = 240
+y =120
+setheading = "right"
 screen = pygame.display.set_mode((660, 480))
 fpsclock = pygame.time.Clock()
+position = [(210,120),(180, 120),(180, 90),(x,y)]
 
 # 背景
 background = pygame.image.load('bg.png')
-right = pygame.image.load('right.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")
+snake_head = pygame.image.load(setheading+".png")
 food = pygame.image.load('apple.png')
-body = pygame.image.load('body.png')
-x = 240
+body = pygame.image.load("body.png")
+
 while True:
     for event in pygame.event.get():
+        print(event.KEY)
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
-    x +=30
+        if event.type == locals.K_UP and setheading != "down" :
+            y -= 30
+            setheading = "up"
+        if event.type == locals.K_LEFT and setheading != "right":
+            x -= 30
+            setheading = "left"
+        if event.type == locals.K_RIGHT and setheading != "left":
+            x += 30
+            setheading = "right"
+        if event.type == locals.K_DOWN and setheading != "up":
+            y += 30
+            setheading = "down"
+    
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, (x, 120))
+    position.append((x,y))
+    position.pop(0)
+    screen.blit(snake_head,position[-1])
     # 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))
+    for i in range(len(position)-1):
+        screen.blit(body,position[i])
+    #screen.blit(body, (210, 120))
+    #screen.blit(body, (180, 120))
+    #screen.blit(body, (180, 90))
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面