using UnityEngine;
using UnityEditor;
using IndianOceanAssets.Engine2_5D;

/// <summary>
/// 编辑器工具：在场景中批量创建敌人实例。
/// 每个敌人使用对应的新预制体（enemy_01~05），保留各自的外观和参数。
/// 菜单路径：Assets > 创建5个敌人 (enemy_01~05)
/// </summary>
public static class EnemyBatchCreator
{
    [MenuItem("Assets/创建5个敌人 (enemy_01~05)")]
    public static void Create()
    {
        // 5个新预制体路径（对应各自的外观）
        string[] prefabPaths = {
            "Assets/enemy/Prefabs/enemy_01.prefab",
            "Assets/enemy/Prefabs/enemy_02.prefab",
            "Assets/enemy/Prefabs/enemy_03.prefab",
            "Assets/enemy/Prefabs/enemy_04.prefab",
            "Assets/enemy/Prefabs/enemy_05.prefab",
        };
        string[] names = { "enemy_01", "enemy_02", "enemy_03", "enemy_04", "enemy_05" };

        // 查找当前场景中的玩家位置，围绕玩家分布敌人
        var player = GameObject.FindWithTag("Player");
        Vector3 center = player != null ? player.transform.position : Vector3.zero;

        // 5个敌人的偏移位置（围绕玩家分布）
        Vector3[] offsets = new Vector3[]
        {
            new Vector3(5f, 0f, 3f),
            new Vector3(-5f, 0f, 3f),
            new Vector3(5f, 0f, -3f),
            new Vector3(-5f, 0f, -3f),
            new Vector3(0f, 0f, 6f),
        };

        Undo.SetCurrentGroupName("创建5个敌人");

        int created = 0;
        for (int i = 0; i < 5; i++)
        {
            var prefab = AssetDatabase.LoadAssetAtPath<GameObject>(prefabPaths[i]);
            if (prefab == null)
            {
                Debug.LogWarning($"[EnemyBatchCreator] 找不到预制体: {prefabPaths[i]}，跳过");
                continue;
            }

            // 实例化对应的 Prefab 到场景中
            GameObject enemy = (GameObject)PrefabUtility.InstantiatePrefab(prefab);
            enemy.name = names[i];
            enemy.transform.position = center + offsets[i];

            // 注册 Undo
            Undo.RegisterCreatedObjectUndo(enemy, $"创建 {names[i]}");
            created++;
        }

        // 选中刚创建的敌人
        var all = new GameObject[created];
        int idx = 0;
        for (int i = 0; i < 5; i++)
        {
            var go = GameObject.Find(names[i]);
            if (go != null) all[idx++] = go;
        }
        Selection.objects = all;

        Debug.Log($"[EnemyBatchCreator] 已创建 {created} 个敌人: enemy_01 ~ enemy_05，使用各自对应的新预制体");
    }
}