save project

my_game.py

@@ -26,7 +26,8 @@ obstacle = random.choice([bush, stone, cacti])
 rect = obstacle.get_rect()
 rect.x = 1000
 rect.y = 500 - rect.height
-roadx=8
+roadx=0
+bg_x=0
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -58,8 +59,8 @@ while True:
         if index >= 5:
             index = 0
     # 将背景图画上去
-    screen.blit(background, (0, 0))     # 远处背景
-    screen.blit(road, (0, 500))     # 路
+    screen.blit(background, (bg_x, 0))     # 远处背景
+    screen.blit(road, (roadx, 500))     # 路
     screen.blit(wukong, (150, y))     # 悟空
 
     if rect.x <= 0-rect.width:      # 障碍物消失
@@ -69,7 +70,12 @@ while True:
         rect.x = 1000
         rect.y = 500 - rect.height
     rect.x -= 8
-    
+    roadx-=8
+    bg_x-=4
+    if roadx<=-1000:
+        roadx=0
+    if bg_x<=-1000:
+        bg_x=0
     screen.blit(obstacle, (rect.x, rect.y)) 
     # 刷新画面
     pygame.display.update()