unity-csharp成员变量变化监听

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做编辑器工具是可能会用到的一个技巧，例如修改 monobehavior 某个变量值，重新做下排序、对位置等功能

  • 其实就是利用 monobehavior 里的一个方法 OnValidate ，这里是每次修改都重新排序一下 
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    using System.Collections;
    using System.Collections.Generic;
    using UnityEngine;

    [ExecuteInEditMode]
    public class SortAllBuilding : MonoBehaviour {
        public int row = 7;
        public int xWidth = 3;
        public int zWidth = 3;
        public Vector3 pos = Vector3.zero;
        public bool refresh = false;

        private bool _isDirty = true;

        void Start () {
            _isDirty = true;   
        }

        void OnValidate() {
            _isDirty = true;   
        }

        void Sort() {
            int xCnt = 0;
            int zCnt = 0;
            int total = transform.childCount;
            Debug.LogFormat("--- 总建筑数量:{0}", total);
            for (int i = 0; i < total; i++) {
                Transform tf = transform.GetChild(i);
                tf.position = new Vector3(xWidth * xCnt, 0f, zWidth * zCnt);

                if (xCnt == row) {
                    zCnt += 1;
                    xCnt = 0;
                } else {
                    xCnt += 1;
                }

            }
        }

        void Update() {
            if (_isDirty) {
                _isDirty = false;
                Sort();
            }
        }
    }