save project

snake.py

@@ -7,30 +7,20 @@ 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')
 left = pygame.image.load('left.png')
-up = pygame.image.load('up.png')
 down = pygame.image.load('down.png')
+up = pygame.image.load('up.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 aa=pygame.time.Clock()
-set1=right
+setheading="right"
+snake_head=right
 
 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
@@ -38,20 +28,30 @@ while True:
         if event.type==locals.KEYDOWN:
             if event.key==locals.K_RIGHT and setheading != "left":
                 setheading="right"
-                set1=right
+                snake_head=right
             if event.key==locals.K_LEFT and setheading != "right":
                 setheading="left"
-                set1=left
+                snake_head=left
             if event.key==locals.K_UP and setheading != "down":
                 setheading="up"
-                set1=up
+                snake_head=up
             if event.key==locals.K_DOWN and setheading != "up":
                 setheading="down"
-                set1=down
+                snake_head=down
+    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)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(set1, aaa[-1])
+    screen.blit(snake_head, aaa[-1])
     # 将贪吃蛇的身体画上去
     for i in range(len(aaa)-1):
         screen.blit(body,aaa[i])
@@ -62,4 +62,4 @@ while True:
     screen.blit(food, (360, 300))
     # 刷新画面
     pygame.display.update()
-    aa.tick(5)
\ No newline at end of file
+    aa.tick(4)
\ No newline at end of file