save project

snake.py

@@ -11,29 +11,55 @@ FPSCLOCK=pygame.time.Clock()
 # 背景
 background = pygame.image.load('bg.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')
 body = pygame.image.load('body.png')
-
+setheading = "right"
+snake_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+=30
+        if event.type == locals.KEYDOWN:
+            if event.key == locals.K_RIGHT and setheading != "left":
+                setheading = "right"
+                snake_head = right
+            if event.key == locals.K_LEFT and setheading != "right":
+                setheading = "left"
+                snake_head = left
+            if event.key == locals.K_DOWN and setheading != "up":
+                setheading = "down"
+                snake_head = down      
+            if event.key == locals.K_UP and setheading != "down":
+                setheading = "up"
+                snake_head = up
+    if setheading == "right":
+        x += 10
+    elif setheading == "left":
+        x -= 10
+    if setheading == "up":
+        y -= 10
+    elif setheading == "down":
+        y += 10
+
+        
+             
+    
     position.append((x,y))
     position.pop(0)       
     # 将背景图画上去
     screen.blit(background, (0, 0))
     
-    screen.blit(right, (x,y))# 将贪吃蛇头画上去
+    screen.blit(snake_head, (x,y))# 将贪吃蛇头画上去
 
     # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
         screen.blit(body,position[i])
-    # screen.blit(body, (210, 120))
-    # screen.blit(body, (180, 120))
-    # screen.blit(body, (180, 90))
+
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面