save project

snake.py

@@ -7,7 +7,8 @@ pygame.init()
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
 x,y=240, 120
-
+setheading="right"
+aaa=[(180, 90),(180, 120),(210, 120),(x,y)]
 # 背景
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
@@ -16,21 +17,41 @@ body = pygame.image.load('body.png')
 aa=pygame.time.Clock()
 
 while True:
+    if setheading=="right":
         x+=30
+    elif setheading=="left":
+        x-=30
+    elif setheading=="up":
+        y-=30
+    else:
+        y+=30
+    aaa.append((x,y))
+    aaa.pop(0)
     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"
+            if event.key==locals.K_LEFT and setheading != "right":
+                setheading="left"
+            if event.key==locals.K_UP and setheading != "down":
+                setheading="up"
+            if event.key==locals.K_DOWN and setheading != "up":
+                setheading="down"
     # 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(right, aaa[-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(aaa)-1):
+        screen.blit(body,aaa[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
     pygame.display.update()
-    aa.tick(24)
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+    aa.tick(1)
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