save project

snake.py

@@ -12,22 +12,49 @@ 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')
+
+up=pygame.image.load('up.png')
+down=pygame.image.load('down.png')
+left=pygame.image.load('left.png')
+
 x=240
 x=240
 y=120
 y=120
 position=[(180,90),(180,120),(210,120),(x,y)]
 position=[(180,90),(180,120),(210,120),(x,y)]
+fx="right"
+tou=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
+        if event.type==locals.KEYDOWN:
+            if event.key==locals.K_UP and fx != "down":
+                fx="up"
+                tou=up
+            if event.key==locals.K_DOWN and fx != "up":
+                fx="down"
+                tou=down
+            if event.key==locals.K_LEFT and fx != "right":
+                fx="left"
+                tou=left
+            if event.key==locals.K_RIGHT and fx != "left":
+                fx="right"
+                tou=right
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
-    # 将贪吃蛇画上去
-    x=x+30
+    if fx=="right":
+        x=x+30
+    elif fx=="left":
+        x=x-30
+    elif fx=="up":
+        y=y-30
+    else:
+        y=y+30
+
+
+
     position.append((x,y))
     position.append((x,y))
     position.pop(0)
     position.pop(0)
-    screen.blit(right,position[-1])
+    screen.blit(tou,position[-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(position)-1):
     for i in range(len(position)-1):
         screen.blit(body,position[i])
         screen.blit(body,position[i])