save project

my_game.py

@@ -26,6 +26,11 @@ obstacle = random.choice([bush,cacti,stone])
 rect = obstacle.get_rect()
 rect.x = 1000
 rect.y = 500-rect.height
+road_x = 0
+road_y = 500
+bg_x = 0
+bg_y = 0
+
 
 
 while True:
@@ -56,12 +61,18 @@ while True:
     if index > 4:
         index = 0
     # 将背景图画上去
-    screen.blit(background, (0, 0))
-    screen.blit(road, (0, 500))
+    if bg_x <= -1000:
+        bg_x = 0
+    bg_x -= 1
+    screen.blit(background, (bg_x, bg_y))
+    if road_x <= -1000:
+        road_x = 0
+    road_x -= 8    
+    screen.blit(road, (road_x, road_y))
     screen.blit(hero[index], (150, y))
 
     if rect.x < 0 - rect.width:
-        obstacle = random.choicee([bush,cacti,stone])
+        obstacle = random.choice([bush,cacti,stone])
         rect = obstacle.get_rect()
         rect.x = 1000
         rect.y = 500-rect.height