直接上代码

using UnityEditor;
using UnityEngine;
using System.Collections.Generic;
using System.IO;
using OHGame;
using Unity.VisualScripting;public class OHEditorTool : Editor
{[MenuItem("OHGame/Tools/行动区域点落地")]private static void GetObjectsWithScript(){// 在编辑器模式下获取所有SpawnExitGizmos脚本的物体SpawnExitGizmos[] objectsWithScript = GameObject.FindObjectsOfType<SpawnExitGizmos>();foreach (SpawnExitGizmos obj in objectsWithScript){if (obj.IsGround){obj.AddComponent<EditorModeUpdate>();}Debug.Log("Object with SpawnExitGizmos script: " + obj.gameObject.name);}}}

using OHGame;
using UnityEditor;
using UnityEngine;[ExecuteInEditMode]
public class EditorModeUpdate : MonoBehaviour
{[SerializeField] private LayerMask groundLayer = 1;private void Update(){// 在编辑器模式下执行的代码SnapObjectToGround();}private void SnapObjectToGround(){// 从物体下方发射射线，检测地面碰撞RaycastHit hit;transform.position += new Vector3(0, 1, 0);if (Physics.Raycast(new Ray(transform.position , Vector3.down * 20f), out hit, Mathf.Infinity, groundLayer)){// 将物体位置设置为地面位置transform.position = hit.point+new Vector3(0,GetComponent<SpawnExitGizmos>().Cube_Size.y/2f,0);//Destroy(transform.GetComponent<EditorModeUpdate>());GameObject.DestroyImmediate(this);}}void OnDrawGizmos(){Gizmos.color = Color.red;Gizmos.DrawRay(transform.position , Vector3.down * 20f);}
}

效果图