要射出的点进行以下处理之后就可以了
this.point = this.changeToClientWorld(this.point)
//在showall模式下将屏幕坐标转换到client空间坐标，为射线检测偏差使用
public changeToClientWorld(input:Laya.Vector2):Laya.Vector2
{
let ratioX = (input.x / Laya.stage.width);
let ratioY = (input.y / Laya.stage.height);
let clientWidth = Laya.stage.clientScaleX * Laya.stage.width
let clientHeight = Laya.stage.clientScaleY * Laya.stage.height
let singleX = (Laya.Browser.width - clientWidth)/2;
let singleY = (Laya.Browser.height - clientHeight)/2;
input.x = ratioX * clientWidth;//讲道理要加singleX,但是不加效果正常，看效果自行修改
input.y = ratioY * clientHeight;
return input;
}
