save project

my_game.py

@@ -26,6 +26,8 @@ obstacle = random.choice([bush, stone, cacti])
 rect = obstacle.get_rect()
 rect.x = 1000
 rect.y = 500 - rect.height
+road_x=0
+background_x=0
 
 while True:
     for event in pygame.event.get():
@@ -58,8 +60,14 @@ 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, (background_x, 0))     # 远处背景
+    background_x-=4
+    if background_x<-1000:
+        background_x=0
+    screen.blit(road, (road_x, 500))     # 路
+    road_x-=8
+    if road_x<-1000:
+        road_x=0
     screen.blit(wukong, (150, y))     # 悟空
 
     if rect.x <= 0-rect.width:      # 障碍物消失