save project

snake.py

@@ -6,6 +6,7 @@ pygame.init()
 x,y=240,120
 position=[(180,90),(180,120),(210,120),(x,y)]
 
+
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
 FPSCLOCK=pygame.time.Clock()
@@ -13,21 +14,51 @@ FPSCLOCK=pygame.time.Clock()
 # 背景
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
+left = pygame.image.load('left.png')
+down = pygame.image.load('down.png')
+up = pygame.image.load('up.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 
+seatheading="right"
+snake_heasd=right
+
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
+        elif event.type==locals.KEYDOWN:
+            if event.key==locals.K_RIGHT and seatheading !="left":
+                seatheading="right"
+                snake_heasd=right
+            if event.key==locals.K_LEFT and seatheading !="right" :
+                seatheading="left"
+                snake_heasd=left
+            if event.key==locals.K_UP and seatheading !="down":
+                seatheading="up"
+                snake_heasd=up
+            if event.key==locals.K_DOWN and seatheading !="up":
+                seatheading="down"
+                snake_heasd=down
+            
+        if seatheading=="right":
             x+=30
+        elif seatheading=="left":
+            x-=30
+        elif seatheading=="down":
+            y+=30
+        else :
+            y-=30
+        
+
+        
         position.append((x,y))
         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_heasd,position[-1])
     # 将贪吃蛇的身体画上去
     # screen.blit(body, (210, 120))
     # screen.blit(body, (180, 120))