save project

snake.py

@@ -6,27 +6,57 @@ pygame.init()
 
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
-
+clock = pygame.time.Clock()
 # 背景
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
+ieft =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')
 
+x,y = 240,120
+xy = [(180,90),(180,120),(210,120),(x,y)]
+setheading = 'right'
+set_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()
+        if event.type == locals.KEYDOWN:
+            if event.key == locals.K_RIGHT and setheading != 'left':
+                setheading = 'right'
+                set_head = right
+            if event.key == locals.K_LEFT and setheading != 'right':
+                setheading = 'left'
+                set_head = left
+            if event.key == locals.K_UP and setheading != 'down':
+                setheading = 'up'
+                set_head = up
+            if event.key == locals.K_DOWN and setheading != 'up':
+                setheading = 'down'
+                set_head = down
+    if setheading =='right':
+        x +=30
+    elif setheading =='left':
+        x -=30
+    elif setheading =='up':
+        y -=30
+    else:
+        y +=30
+    xy.append((x,y))
+    xy.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, (240, 120))
+    screen.blit(set_head,xy[-1])
     # 将贪吃蛇的身体画上去
-    screen.blit(body, (210, 120))
-    screen.blit(body, (180, 120))
-    screen.blit(body, (180, 90))
+    for i in range(len(xy) - 1):
+        screen.blit(body,xy[i])
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面
-    pygame.display.update()
\ No newline at end of file
+    pygame.display.update()
+    clock.tick(3)
\ No newline at end of file