save project

snake.py

@@ -12,28 +12,51 @@ 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,y = 240,120
 x,y = 240,120
 pos =  [(180,90,),(180,120),(210,120),(x,y)]
 pos =  [(180,90,),(180,120),(210,120),(x,y)]
+setheading = 'right'
+snake_head = 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()
+        elif 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
+
     # 将背景图画上去
     # 将背景图画上去
+    if setheading == 'right':
         x += 30
         x += 30
+    elif setheading == 'left':
+        x -= 30
+    elif setheading == 'up':
+        y -= 30   
+    else:
+        y += 30   
     pos.append((x,y))
     pos.append((x,y))
     pos.pop(0)
     pos.pop(0)
     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, (x, y))
+    screen.blit(snake_head, (x, y))
     # 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(pos)-1):
     for i in range(len(pos)-1):
-        screen.blit(body.pos[i])
+        screen.blit(body,pos[i])
          
          
-    screen.blit(body, (210, 120))
-    screen.blit(body, (180, 120))
-    screen.blit(body, (180, 90))
     # 将果实画上去
     # 将果实画上去
     screen.blit(food, (360, 300))
     screen.blit(food, (360, 300))
     # 刷新画面
     # 刷新画面