auto save

snake.py

@@ -6,27 +6,67 @@ pygame.init()
 
 
 # 创建一个窗口
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
 screen = pygame.display.set_mode((660, 480))
+#创建计时器，时钟模块
+FPS = pygame.time.Clock()
 
 
 # 背景
 # 背景
 background = pygame.image.load('bg.png')
 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')
 food = pygame.image.load('apple.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 body = pygame.image.load('body.png')
 
 
+x,y = 240,120
+pos = [(180,90),(180,120),(210,120),(x,y)]
+
+#设置默认朝向
+setheading = 'right'
+#设置默认蛇头图片
+snake_head = right
+
 while True:
 while True:
     for event in pygame.event.get():
     for event in pygame.event.get():
         if event.type == locals.QUIT:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             # 接收到退出事件后退出程序
             exit()
             exit()
+        #检测按键事件
+        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'
+                snake_head = down
+
+    if setheading == 'right':
+        x += 30
+    elif setheading == 'left':
+        x -= 30
+    elif setheading == 'up':
+        y -= 30
+    else:
+        y += 30
+
+    pos.append((x,y))
+    pos.pop(0)
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
     # 将贪吃蛇画上去
-    screen.blit(right, (240, 120))
+    screen.blit(snake_head, (x, y))
     # 将贪吃蛇的身体画上去
     # 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(pos)-1):
+        screen.blit(body,pos[i])
     # 将果实画上去
     # 将果实画上去
     screen.blit(food, (360, 300))
     screen.blit(food, (360, 300))
     # 刷新画面
     # 刷新画面
-    pygame.display.update()
+    pygame.display.update()
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+
+    FPS.tick(3)
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