save project

lesson7-diy4.py

@@ -26,6 +26,8 @@ obstacle=random.choice([stone,cacti,apple])
 rect=obstacle.get_rect()
 rect.x=1000
 rect.y=500-rect.height
+road_x=0
+dg_x=0
 
 while True:
     for event in pygame.event.get():
@@ -60,10 +62,16 @@ while True:
         rect=obstacle.get_rect()
         rect.x=1000
         rect.y=500-rect.height
-    rect.x-=8
+    rect.x-=24
     # 将背景图画上去
-    screen.blit(background, (0, 0))
-    screen.blit(road, (0, 500))
+    screen.blit(background, (dg_x, 0))
+    road_x-=24
+    if road_x < -1000:
+        road_x=0
+    screen.blit(road, (road_x, 500))
+    dg_x-=22
+    if dg_x < -1000:
+        dg_x=0
     screen.blit(wukong, (150, y))
     screen.blit(obstacle, (rect.x, rect.y))    
     # 刷新画面