save project

snake.py

@@ -10,23 +10,48 @@ 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')
 x,y=240,120
 x,y=240,120
 t=pygame.time.Clock()
 t=pygame.time.Clock()
 l=[(180,90),(180,120),(210,120),(x,y)]
 l=[(180,90),(180,120),(210,120),(x,y)]
+shetou=right
+setheading='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()
     # 将背景图画上去
     # 将背景图画上去
+    if event.type==locals.KEYDOWN:
+      if event.key==locals.K_RIGHT and setheading!='left':
+         setheading='right'
+         shetou=right
+      if event.key==locals.K_LEFT and setheading!='right':
+         setheading='left'
+         shetou=left
+      if event.key==locals.K_UP and setheading!='down':
+         setheading='up'
+         shetou=up
+      if event.key==locals.K_DOWN and setheading!='up':
+         setheading='down'
+         shetou=down
+    if setheading == 'right':
         x+=30
         x+=30
+    elif setheading == 'left':
+        x-=30
+    elif setheading == 'up':
+        y-=30
+    else:
+        y+=30
     l.append((x,y))
     l.append((x,y))
     l.pop(0)
     l.pop(0)
     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, l[3])
+    screen.blit(shetou, l[3])
     # 将贪吃蛇的身体画上去
     # 将贪吃蛇的身体画上去
     screen.blit(body, l[2])
     screen.blit(body, l[2])
     screen.blit(body, l[1])
     screen.blit(body, l[1])
@@ -35,4 +60,4 @@ while True:
     screen.blit(food, (360, 300))
     screen.blit(food, (360, 300))
     # 刷新画面
     # 刷新画面
     pygame.display.update()
     pygame.display.update()
-    t.tick(20)
+    t.tick(2)
\ No newline at end of file