using Sirenix.OdinInspector;
using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class MeshCenterSelect : MonoBehaviour
{

    
    public GameObject modelA;
    public GameObject modelB;
    // 模型A的层级树对象
    public objTree ObjATree;
    public objTree ObjBTree;

    [DictionaryDrawerSettings]
    public Dictionary<Vector3, objTree> objADic;
    [DictionaryDrawerSettings]
    public Dictionary<Vector3, objTree> objBDic;
       


    [Button("测试")]
    void CreateTree()
    {
        ObjATree = new objTree(modelA);
        ObjBTree = new objTree(modelB);

        objADic = new Dictionary<Vector3, objTree>();
        objBDic = new Dictionary<Vector3, objTree>();

        FindChild(ObjATree, objADic);
        FindChild(ObjBTree, objBDic);

        GameObject newFenzumubiao = new GameObject("分组目标");
        HierarchicalMatching(ObjATree, newFenzumubiao);
        modelB.transform.SetParent(newFenzumubiao.transform, newFenzumubiao);
        modelB.name = "没配对上的";
    }

        
    void FindChild(objTree child, Dictionary<Vector3, objTree> pairs) //收集未分组的mesh
    {
        if(child.meshRenderer != null)
        {
            if (!pairs.ContainsKey(child.CenterV3))
                pairs.Add(child.CenterV3, child);
            else Debug.LogError(child.nodeObj.name);
        }
            
        // 递归遍历所有子物体
        for (int i = 0; i < child.children.Count; i++)
            FindChild(child.children[i], pairs);
    }

        
    void HierarchicalMatching(objTree tree, GameObject NowPoint) //按层级匹配
    {
        GameObject matchTmpObj;

        if (tree.meshRenderer != null && objBDic.TryGetValue(tree.CenterV3, out objTree tmpObj))
            matchTmpObj = tmpObj.nodeObj;
        else
        {
            matchTmpObj = new GameObject();
            matchTmpObj.name = tree.nodeObj.name;
        }
        matchTmpObj.transform.SetParent(NowPoint.transform);



        foreach (objTree tmp in tree.children)
            HierarchicalMatching(tmp, matchTmpObj);
    }

      



    [Serializable]
    public class objTree
    {
        public GameObject nodeObj;
        public List<objTree> children = new List<objTree>();
        public Vector3 CenterV3;
        public MeshRenderer meshRenderer;

        public objTree(GameObject gameObj)
        {
            nodeObj = gameObj;//节点
            
            if (nodeObj.GetComponent<MeshRenderer>() != null)
            {
                meshRenderer = nodeObj.GetComponent<MeshRenderer>();
                Vector3 tmpV3 = meshRenderer.bounds.center;

                CenterV3 = new Vector3(Mathf.Ceil(tmpV3.x*10000), Mathf.Ceil(tmpV3.y * 10000), Mathf.Ceil(tmpV3.z * 10000));
            }

            addObjNode();
        }

        public void addObjNode()
        {
            for (int i = 0; i < nodeObj.transform.childCount; i++)
            {
                children.Add(new objTree(nodeObj.transform.GetChild(i).gameObject));
            }
        }
    }
}