c# - 坐标轴的合适类型？

Question

我在为变量 axis 声明构造函数类型时遇到问题。我尝试了 float ，但显然它不起作用。

private void SortDistAxis(List<Transform> targetsList, var axis)
{
    targetsList.Sort(
    delegate (Transform t1, Transform t2) 
    {
            return selectedTarget.Find("localChild").transform.InverseTransformPoint(t2.position).axis.CompareTo 
                (selectedTarget.Find("localChild").transform.InverseTransformPoint(t1.position).axis);
    });
}

我可以求助于这种方法，但感觉很脏。还有其他选择吗？

private void SortDistAxis(List<Transform> targetsList, string axis)
{
    if (axis == "x")
    {
        targetsList.Sort(
        delegate (Transform t1, Transform t2) 
        {
                return selectedTarget.Find("localChild").transform.InverseTransformPoint(t2.position).x.CompareTo 
                    (selectedTarget.Find("localChild").transform.InverseTransformPoint(t1.position).x);
        });
    }
    if (axis == "y")
    {
        targetsList.Sort(
        delegate (Transform t1, Transform t2) 
        {
                return selectedTarget.Find("localChild").transform.InverseTransformPoint(t2.position).y.CompareTo 
                    (selectedTarget.Find("localChild").transform.InverseTransformPoint(t1.position).y);
        });
    }
}

Answer 1

也许您可以考虑使用委托(delegate)来获取您想要的轴？

private void SortDistAxis(List<Transform> targetsList, Func<PointF, float> axisFunc)
{
    targetsList.Sort(
    delegate (Transform t1, Transform t2) 
    {
         return axisFunc(selectedTarget.Find("localChild").transform.InverseTransformPoint(t2.position)).CompareTo 
               (axisFunc(selectedTarget.Find("localChild").transform.InverseTransformPoint(t1.position)));
    });
}

用法是:

SortDistAxis(targetsList, p => p.x);
SortDistAxis(targetsList, p => p.y);

我假设 InverseTransformPoint 返回的类型是 PointF。