save project

my_game.py

@@ -26,6 +26,8 @@ obstacle=random.choice([stone,cacti,bush])
 rect=obstacle.get_rect()
 rect_x=1000
 rect_y=500-rect.height
+road_x=0
+bg_x=0
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -54,10 +56,15 @@ while True:
         index += 1
         if index == 5:
             index = 0
-
     # 将背景图画上去
-    screen.blit(background, (0, 0))
-    screen.blit(road, (0, 500))
+    bg_x-=1
+    if bg_x<-1000:
+        bg_x=0
+    screen.blit(background, (bg_x, 0))
+    road_x-=8
+    if road_x<-1000:
+        road_x=0
+    screen.blit(road, (road_x, 500))
     screen.blit(wukong, (150, y))
     
     if rect_x<=0-rect.width: