save project

snake.py

 import pygame
 from pygame import locals
-
+import random
 # 初始化pygame，为使用硬件做准备
 pygame.init()
+FPSCLOCK=pygame.time.Clock()
 
 # 创建一个窗口
-screen = pygame.display.set_mode((660, 480))
+screen = pygame.display.set_mode((690, 510))
 
 # 背景
 background = pygame.image.load('bg.png')
@@ -20,6 +21,9 @@ down =pygame.image.load('down.png')
 x,y=240,120
 position=[(180,90),(180,120),(210,120),(x,y)]
 
+apple_x=360#苹果的横纵坐标
+apple_y=300#苹果的坐标
+
 setheading="right"
 snake_head=right
 
@@ -29,16 +33,16 @@ while True:
             # 接收到退出事件后退出程序
             exit()
         if event.type==locals.KEYDOWN:
-            if event.key==locals.K_RIGHT and setheading !="left"
+            if event.key==locals.K_RIGHT and setheading !="left":
                 setheading='right'
                 snake_head=right
-            if event.key==locals.K_RIGHT and setheading !="right"
+            if event.key==locals.K_LEFT and setheading !="right":
                 setheading='left'
                 snake_head=left
-            if event.key==locals.K_RIGHT and setheading !="down"
+            if event.key==locals.K_UP and setheading !="down":
                 setheading='up'
                 snake_head=up
-            if event.key==locals.K_RIGHT and setheading !="up"
+            if event.key==locals.K_DOWN and setheading !="up":
                 setheading='down'
                 snake_head=down
     # 设置贪吃蛇的头部坐标
@@ -46,26 +50,29 @@ while True:
         x+=30
     elif setheading =="left":
         x-=30
-    elif setheading=="up"
+    elif setheading=="up":
         y-=30
     else:
         y+=30
                 
+    position.append((x,y))
 
-    position.append(x,y)
-    position.pop(0)
+    #贪吃蛇吃到了苹果
+    if x==apple_x and y==apple_y:
+        apple_x=random.randint(0,660)
+        apple_y=random.randint(0,480)
 
+    position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, position[-1])
+    screen.blit(snake_head, position[-1])
     # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
-        scren.blit(body,position[i])
+        screen.blit(body,position[i])
 
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (apple_x, apple_y))
     # 刷新画面
     pygame.display.update()
-    FPSCLOCK.tick(3)
-    
\ No newline at end of file
+    FPSCLOCK.tick(2)
\ No newline at end of file