//游戏层
this.panelGame
{
let maxX = -10000;
let minX = 10000;
//遍历地图内元素的X坐标
for(let i in roadVt){
let road = roadVt[i]
maxX = Math.max(maxX, road.x + road.width*road.anchorX)
minX = Math.min(minX, road.x - road.width*road.anchorX)
}
this.setGamePanelCenter(maxX,minX)
}
//传入游戏内的物体,最右边和 最左边的X坐标
setGamePanelCenter(maxX,minX){
this.panelGame.x = - (maxX*this.panelGame.scaleX + minX*this.panelGame.scaleX)/2;
}