save project

my_game.py

+
 import pygame
 from pygame import locals
 import random
@@ -22,6 +23,10 @@ index = 0
 y = 400
 jumpState = "runing"
 t = 30
+# +++++++++++++++++++++++
+bg_x = 0
+road_x = 0
+# +++++++++++++++++++++++
 obstacle = random.choice([bush, stone, cacti])
 rect = obstacle.get_rect()
 rect.x = 1000
@@ -58,8 +63,16 @@ 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
+    # +++++++++++++++++++++++
+    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))     # 悟空
 
     if rect.x <= 0-rect.width:      # 障碍物消失