Unity输出场景中选中的物体数量

需要注意的有两点:

1.如果直接输出,每个没选中的物体都会执行一遍命令,需要过滤只让一个物体执行命令,但是我用Validate不太管用.直接在命令里过滤

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;

[CanEditMultipleObjects]

public class SelectionCount : Editor {

    [MenuItem("GameObject/Get Selection Count",false,0)]
    static public void GetSelectionCount(MenuCommand menuCommand)
    {
        //Prevent executing multiple times when right-clicking.
        if (Selection.objects.Length > 1)
        {
            if (menuCommand.context != Selection.objects[0])
            {
                return;
            }
        }
        Debug.Log("<color=yellow>选中的数量为" + Selection.objects.Length + "</color>");
    }

}