save project

my_game.py

@@ -22,6 +22,10 @@ index = 0
 y = 400
 jumpState = "runing"
 t = 30
+
+bg_x = 0
+road_x = 0
+
 obstacle = random.choice([bush, stone, cacti])
 rect = obstacle.get_rect()
 rect.x = 1000
@@ -57,6 +61,12 @@ while True:
         index += 1
         if index >= 5:
             index = 0
+
+
+    bg_x -= 1
+    if bg_x <= 1000:
+        bg_x = 0
+    
     # 将背景图画上去
     screen.blit(background, (0, 0))     # 远处背景
     screen.blit(road, (0, 500))     # 路