用笔刷的形式实现地图编辑器

我们策划需要在方块地图中刷不同的单元格，正好之前对类似于魔兽编辑器的功能比较感兴趣，就用射线+物体生成的方式实现了下，实现效果截图如下：

清除效果：

实现代码如下：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;public class CreatMapUpdate : MonoBehaviour
{public GameObject[] objs;public Button[] btns;public int creatID = 0;public float length = 2.5f;public float width = 2.5f;public Dictionary dic = new Dictionary();// Start is called before the first frame updatevoid Start(){       for (var _i = 0; _i < btns.Length; _i++){var _j = _i;btns[_i].onClick.AddListener(delegate { Debug.LogError(_j); creatID = _j - 1; });}}// Update is called once per framevoid Update(){if (Input.GetMouseButton(0)){Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition/*+new Vector3(15,0,-15)*/);RaycastHit hit;//判断是否碰撞到物体bool isCollider = Physics.Raycast(ray, out hit) && hit.transform.tag == "TouchCreat";if (isCollider){var _creatPos = new Vector2((int)(hit.point.x / length), (int)(hit.point.z / width));//Debug.Log(hit.point +"   "+_creatPos);GameObject.Find("指示球").transform.position = hit.point;//以0,0点为中心，将地图切割为n个小地图块if (dic.ContainsKey(_creatPos)){var _obj = dic[_creatPos];if (creatID == -1){dic.Remove(_creatPos);Destroy(_obj);}else if (_obj.name != objs[creatID].name){Destroy(_obj);_obj = CreatObj(objs[creatID]);dic[_creatPos] = _obj;_obj.transform.position = new Vector3(_creatPos.x * length, 0, _creatPos.y * length);_obj.transform.SetParent(transform);}}else if (creatID >= 0){var _obj = CreatObj(objs[creatID]);dic.Add(_creatPos, _obj);_obj.transform.localPosition= new Vector3(_creatPos.x * length, 0, _creatPos.y * length);_obj.transform.SetParent(transform);//Debug.Log(objs.Length + "  " + creatID);}}}}public GameObject CreatObj(GameObject _oo){var _obj = GameObject.Instantiate(_oo) as GameObject;_obj.name = _oo.name;return _obj;}
}

工程资源下载地址：地图笔刷编辑器.unitypackage-C#文档类资源-CSDN文库

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