auto save

snake.py

 import pygame
 import pygame
+import random
 from pygame import locals
 from pygame import locals
 
 
+head_x = 240
+head_y = 120
+position = [(210,120),(180,120),(90,120),(head_x,head_y)]
 # 初始化pygame，为使用硬件做准备
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 pygame.init()
 
 
@@ -10,23 +14,64 @@ screen = pygame.display.set_mode((660, 480))
 # 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')
 
 
+FPSCOLOK = pygame.time.Clock()
+heading = "right"
+snake_head = right
+apple_x = 360
+apple_y = 300
 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()
+        if event.type == pygame.KEYDOWN:
+            if event.key == pygame.K_RIGHT and heading != "left": #K_W
+                heading = "right"
+            if event.key == pygame.K_LEFT and heading != "right": #K_W
+                heading = "left"
+            if event.key == pygame.K_UP and heading != "down": #K_W
+                heading = "up"
+            if event.key == pygame.K_DOWN and heading != "up": #K_W
+                heading = "down"
+            
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
+    screen.blit(food, (apple_x, apple_y))
+
     # 将贪吃蛇画上去
     # 将贪吃蛇画上去
-    screen.blit(right, (240, 120))
+    if heading == "right":
+        head_x += 30
+        snake_head = right
+    elif heading == "left":
+        head_x -= 30
+        snake_head = left
+    elif heading == "up":
+        head_y -= 30
+        snake_head = up
+    elif heading == "down":
+        head_y += 30
+        snake_head = down
+
+    position.append((head_x,head_y))
+    #判断是否吃到
+    if head_x == apple_x and head_y == apple_y:
+        apple_x = random.randint(0,21)*30
+        apple_y = random.randint(0,15)*30
+    else:
+        position.pop(0)
+    screen.blit(snake_head, (head_x, head_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 index in range(len(position)-1):
+        screen.blit(body,position[index])
+    
     # 将果实画上去
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    
     # 刷新画面
     # 刷新画面
+    FPSCOLOK.tick(10)
     pygame.display.update()
     pygame.display.update()
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