save project

snake.py

@@ -12,21 +12,48 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 right = pygame.image.load('right.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')
+left = pygame.image.load(left.png)
+up = pygame.image.load(up.png)
+down = pygame.image.load(down.png)
 
 
 x,y=240,120
 x,y=240,120
 c=[(180,90),(180,120),(210,120),(x,y)]
 c=[(180,90),(180,120),(210,120),(x,y)]
+
+s="right"
+t=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()
+        if event.type == locals.KEYDOWN:
+            if event.key == locals.K_RIGHT and s != "left":
+                s="right"
+                t=right
+            if event.key == locals.K_LEFT and s != "right":
+                s="left"
+                t=left
+            if event.key == locals.K_up and s != "down":
+                s="up"
+                t=up
+            if event.key == locals.K_DOWN and s != "up":
+                s="down"
+                t=down
+    if s == "right":
         x+=30
         x+=30
+    elif s == "left":
+        x-=30
+    elif s == "up":
+        y-=30
+    else:
+        y+=30
     c.append((x,y))
     c.append((x,y))
     c.pop(0)
     c.pop(0)
     # 将背景图画上去
     # 将背景图画上去
     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,c[-1])
+    screen.blit(t,c[-1])
     # 将贪吃蛇的身体画上去
     # 将贪吃蛇的身体画上去
     for i in range(len(c)-1):
     for i in range(len(c)-1):
         screen.blit(body,c[i])
         screen.blit(body,c[i])