save project

my_game.py

@@ -13,25 +13,31 @@ stone = pygame.image.load('stone.png')      # 石头
 cacti = pygame.image.load('cacti.png')      # 仙人掌
 apple = pygame.image.load('bush.png')      # 灌木丛
 hero = pygame.image.load('hero1.png')
-             
-
 index = 0 
-t=30
+
 
 rondomNum = random.choice([stone,cacti,apple])
 rondomRect = rondomNum.get_rect()
 rondomRect.x=1000
 rondomRect.y=500-rondomRect.height
-
+road_x=0
+bg_x=0
 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()
     
+    road_x-=8
+    if road_x<=-1000:
+        road_x=0
+
+    bg_x-=2
+    if bg_x<=-1000:
+        bg_x=0
     # 将背景图画上去
-    screen.blit(background, (0, 0))
-    screen.blit(road, (0, 500))
+    screen.blit(background, (bg_x, 0))
+    screen.blit(road, (road_x, 500))
     screen.blit(hero, (150, 400))
     if rondomRect.x<0-rondomRect.width:
        rondomNum = random.choice([stone,cacti,apple])