save project

snake.py

-import pygame
+import pygame,random
 from pygame import locals
 
 # 初始化pygame，为使用pygame做准备
 pygame.init()
+
+# 帧率初始化
 FPSCLICK = pygame.time.Clock()
-# 创建一个窗口
-baclground = pygame.image.load("bg.png")
-right = pygame.image.load("right.png")
-apple = pygame.image.load("apple.png")
-body = pygame.image.load("body.png")
-x,y = 240,120
-position = [(180,120),(180,270),(210,120),(x,y)]
+
+# 创建窗口
 screen = pygame.display.set_mode((660,480))
+
+# 导入图片
+baclground = pygame.image.load("bg.png")  # 背景
+
+right = pygame.image.load("right.png")    # 头部
+left = pygame.image.load("left.png")
+up = pygame.image.load("up.png")
+down = pygame.image.load("down.png")
+
+apple = pygame.image.load("apple.png")    #屁股
+body = pygame.image.load("body.png")      #身体
+
+
+
+# 头部初始化坐标
 x,y = 240,120
 
+# 屁股初始化坐标
+apple_x = 360
+apple_y = 300
+
+# 吃屁股
+eat_apple = 0
+
+# 贪吃蛇每节身体的坐标的初始化
+position = [(180,120),(180,270),(210,120),(x,y)]
+
+setheading = 'right'
+snake_head = right
+
 while True:
     for event in pygame.event.get():
         if event.type == 12:
+            # 接收到退出事件后退出程序
             exit()
-        # if event.type == locals.KEYDOWN:
-        #     if event.key == event.K_DOWN:
-        #         y += 30    
+
+        # 按键设置       
+        if event.type == locals.KEYDOWN:
+            # w键
+            if event.key == locals.K_w and setheading != 'down':
+                setheading = 'up'
+                snake_head = up
+            # a键
+            if event.key == locals.K_a and setheading != 'right':
+                setheading = 'left'
+                snake_head = left
+            # s键        
+            if event.key == locals.K_s and setheading != 'up':
+                setheading = 'down'
+                snake_head = down
+            # d键
+            if event.key == locals.K_d and setheading != 'left':
+                setheading = 'right'
+                snake_head = right
+                    
+
+    # 设置贪吃蛇的移动方向(头部坐标)
+    if setheading == 'right':
         x += 30
+    if setheading == 'left':
+        x -= 30 
+    if setheading == 'up':
+        y -= 30
+    if setheading == 'down':
+        y += 30       
+    
     position.append((x,y))
+    
+
+
+    # 恰苹果
+    if (x,y) == (apple_x,apple_y):
+        apple_x = 30 * random.randint(0,16)
+        apple_x = 30 * random.randint(0,20)
+        eat_apple += 1
+    else:
         position.pop(0)
+
+    # 碰墙退出
+    if x > 660 or y > 480 or x < 0 or y < 0:
+        exit()
+
+    # 分数退出
+    if eat_apple > 150:
+        exit()
+
+    # 自杀退出
+    if position[-1] in position[0:-1]:
+        exit()       
+
+    # 背景图片添加于屏幕
     screen.blit(baclground,(0,0))
-    screen.blit(right,(x,y))       
-    screen.blit(apple,(360,300))
-    screen.blit(body,(210,120))
 
+    # 头部图片添加于屏幕
+    screen.blit(snake_head,position[-1])
+
+    # 屁股图片添加于屏幕
+    screen.blit(apple,(apple_x,apple_y))
+
+
+    for i in range(len(position)-1):
+        screen.blit(body,position[i])
     pygame.display.update()
-    FPSCLICK.tick(3) 
+
+    # 帧率
+    FPSCLICK.tick(5) 
       

test.py

 import pygame
 from pygame import locals
+
+# 初始化pygame，为使用pygame做准备
 pygame.init()
-while True:
 
-    screen = pygame.display.set_mode((1920,1080))
+# 帧率初始化
+FPSCLICK = pygame.time.Clock()
+
+# 创建窗口
+screen = pygame.display.set_mode((660,480))
 while True:
     for event in pygame.event.get():
         if event.type == 12:
+            exit()
         print(event)          
\ No newline at end of file