save project

snake.py

@@ -6,26 +6,57 @@ pygame.init()
 
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
+lmx = pygame.time.Clock()
 # 背景
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
-lmx = pygame.time.Clock()
+left = pygame.image.load('left.png')
+up = pygame.image.load('up.png')
+down = pygame.image.load('down.png')
+
 x,y = 240,120
 abc=[(180,90),(180,120),(210,120),(x,y)]
+
+setheading = "right"
+snke_head = 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()
-    x = x+30
+        elif event.type == locals.KEYDOWN:
+            if event.key == locals.K_RIGHT:
+                 setheading ='right'
+                 snke_head = right
+            if event.key == locals.K_LEFT:
+                 setheading ='left'
+                 snke_head = left
+            if event.key == locals.K_UP and setheading !="up":
+                 setheading ='up'
+                 snke_head = up
+            if event.key == locals.K_DOWN and setheading !="down":
+                 setheading ='down'
+                 snke_head = down
+
+
+    if setheading == "right":
+        x += 30
+    elif setheading == "left":
+        x -=30
+    elif setheading == "up":
+        y -= 30
+    else:
+        y += 30
+    
     abc.append((x,y))
     abc.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, (x, y))
+    screen.blit(snke_head,abc[-1]) 
     # 将贪吃蛇的身体画上去
    
     for i in range(len(abc)-1):