滚动的游戏背景在射击类游戏中比较常见（如：雷霆战机）,下面用cocos2dx实现背景的无限滚动（基于引擎cocos2dx2.1.4）
@H_404_4@<span style="font-family:KaiTi_GB2312;font-size:14px;">void MainScene::update(float delta){ //创建滚动的主游戏背景 CCSize spsize = m_bgsprite1->getContentSize(); //CCSize spsize = CCSizeMake(854,480); int m1 = m_bgsprite1->getPositionX(); int m2 = m_bgsprite2->getPositionX(); int xspeed = 1; m1 -= xspeed; m2 -= xspeed; if(m1 < -spsize.width/2){ m1 = spsize.width+spsize.width/2; m2 = spsize.width/2; } if(m2 < -spsize.width/2){ m2 = spsize.width+spsize.width/2; m1 = spsize.width/2; } m_bgsprite1->setPositionX(m1); m_bgsprite2->setPositionX(m2); //将主角设置为可移动对象 CCPoint curpos = this->getChildByTag(1)->getPosition(); this->getChildByTag(1)->setPosition(ccp(curpos.x+xSpeed,curpos.y+ySpeed)); }</span>xspeed为背景滚动速度，m_bgsprite1为背景图片
