221 lines
8.7 KiB
C#
221 lines
8.7 KiB
C#
using System.Collections.Generic;
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using UnityEngine;
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namespace IndianOceanAssets.Engine2_5D
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{
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/// <summary>
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/// 游戏出生点管理器 —— 每次进入场景时，将玩家和敌人随机分配到出生点。
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///
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/// 使用方式：
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/// 1. 场景中创建空物体，挂上此脚本
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/// 2. 将玩家预制体拖到 playerPrefab
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/// 3. 将 enemy_01~05 预制体拖到 enemyPrefabs 数组
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/// 4. 设置每种敌人的数量
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/// 5. 运行时自动从 EnemySpawnPoint 中随机选取位置
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/// </summary>
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public class GameSpawnManager : MonoBehaviour
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{
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[Header("玩家")]
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[Tooltip("玩家预制体")]
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[SerializeField] GameObject playerPrefab;
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[Header("传送门")]
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[Tooltip("传送门/出口预制体（DoorPortal）")]
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[SerializeField] GameObject doorPrefab;
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[Header("敌人配置")]
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[Tooltip("敌人预制体数组（enemy_01 ~ enemy_05）")]
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[SerializeField] GameObject[] enemyPrefabs;
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[Tooltip("每种敌人的数量（数组长度需与 enemyPrefabs 一致）")]
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[SerializeField] int[] enemyCounts;
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[Header("设置")]
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[Tooltip("敌人总数上限（即使 enemyCounts 总和超过此值也不会多生成）")]
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[SerializeField] int maxEnemies = 5;
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[Tooltip("玩家出生点离敌人的最小安全距离")]
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[SerializeField] float playerSafeDistance = 5f;
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// 运行时
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private List<Transform> _allSpawnPoints;
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private readonly List<EnemyAI> _spawnedEnemies = new List<EnemyAI>();
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private GameObject _spawnedPlayer;
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private void Start()
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{
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// 收集所有出生点
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var spawnPointComponents = FindObjectsByType<EnemySpawnPoint>(FindObjectsSortMode.None);
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_allSpawnPoints = new List<Transform>();
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foreach (var sp in spawnPointComponents)
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{
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_allSpawnPoints.Add(sp.transform);
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}
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if (_allSpawnPoints.Count == 0)
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{
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Debug.LogWarning("[GameSpawnManager] 场景中没有找到任何 EnemySpawnPoint！");
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return;
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}
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Debug.Log($"[GameSpawnManager] 找到 {_allSpawnPoints.Count} 个出生点");
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// 打乱出生点顺序
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Shuffle(_allSpawnPoints);
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int usedIndex = 0;
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// 1. 生成玩家
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if (playerPrefab != null)
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{
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// 找一个离已使用点较远的位置
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Transform playerSpawn = FindSafeSpawnPoint(usedIndex, playerSafeDistance);
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if (playerSpawn == null)
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playerSpawn = _allSpawnPoints[usedIndex];
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// 将玩家使用的点交换到 usedIndex 位置，标记为已使用
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int playerIdx = _allSpawnPoints.IndexOf(playerSpawn);
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if (playerIdx != usedIndex)
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{
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var temp = _allSpawnPoints[usedIndex];
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_allSpawnPoints[usedIndex] = _allSpawnPoints[playerIdx];
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_allSpawnPoints[playerIdx] = temp;
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}
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usedIndex++;
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_spawnedPlayer = Instantiate(playerPrefab, playerSpawn.position, playerSpawn.rotation);
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Debug.Log($"[GameSpawnManager] 玩家出生在 #{GetSpawnPointIndex(playerSpawn)} 位置=({playerSpawn.position.x:F1}, {playerSpawn.position.y:F1}, {playerSpawn.position.z:F1})");
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// 将摄像机挂到玩家身上
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var camFollow = Camera.main != null ? Camera.main.GetComponent<CameraFollow>() : null;
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if (camFollow == null && Camera.main != null)
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camFollow = Camera.main.gameObject.AddComponent<CameraFollow>();
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if (camFollow != null)
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{
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camFollow.SetTarget(_spawnedPlayer.transform);
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Debug.Log("[GameSpawnManager] 摄像机已跟随玩家");
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}
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}
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// 2. 生成传送门（选择离玩家最远的出生点）
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if (doorPrefab != null && usedIndex < _allSpawnPoints.Count)
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{
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Vector3 playerPos = _spawnedPlayer != null ? _spawnedPlayer.transform.position : _allSpawnPoints[0].position;
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Transform doorSpawn = null;
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float maxDist = -1f;
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for (int i = usedIndex; i < _allSpawnPoints.Count; i++)
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{
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float dist = Vector3.Distance(_allSpawnPoints[i].position, playerPos);
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if (dist > maxDist)
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{
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maxDist = dist;
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doorSpawn = _allSpawnPoints[i];
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}
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}
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if (doorSpawn == null)
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doorSpawn = _allSpawnPoints[usedIndex];
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int doorIdx = _allSpawnPoints.IndexOf(doorSpawn);
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if (doorIdx != usedIndex)
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{
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var temp = _allSpawnPoints[usedIndex];
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_allSpawnPoints[usedIndex] = _allSpawnPoints[doorIdx];
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_allSpawnPoints[doorIdx] = temp;
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}
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usedIndex++;
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Instantiate(doorPrefab, doorSpawn.position, doorSpawn.rotation);
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Debug.Log($"[GameSpawnManager] 传送门出生在 #{GetSpawnPointIndex(doorSpawn)} 位置=({doorSpawn.position.x:F1}, {doorSpawn.position.y:F1}, {doorSpawn.position.z:F1}) 距玩家={maxDist:F1}");
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}
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// 3. 生成敌人
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if (enemyPrefabs != null && enemyCounts != null)
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{
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int prefabCount = Mathf.Min(enemyPrefabs.Length, enemyCounts.Length);
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for (int p = 0; p < prefabCount; p++)
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{
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if (enemyPrefabs[p] == null) continue;
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for (int i = 0; i < enemyCounts[p] && usedIndex < _allSpawnPoints.Count; i++)
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{
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// 检查是否达到敌人总数上限
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if (_spawnedEnemies.Count >= maxEnemies)
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break;
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Transform spawnPos = _allSpawnPoints[usedIndex++];
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var enemy = Instantiate(enemyPrefabs[p], spawnPos.position, spawnPos.rotation);
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var ai = enemy.GetComponent<EnemyAI>();
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if (ai != null)
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_spawnedEnemies.Add(ai);
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Debug.Log($" 敌人{p + 1}#{_spawnedEnemies.Count}: {enemyPrefabs[p].name} 位置=({spawnPos.position.x:F1}, {spawnPos.position.y:F1}, {spawnPos.position.z:F1}) 出生点=#{GetSpawnPointIndex(spawnPos)}");
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}
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// 外层也检查
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if (_spawnedEnemies.Count >= maxEnemies)
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break;
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}
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}
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Debug.Log($"[GameSpawnManager] 生成完毕：1 个玩家 + {(doorPrefab != null ? "1 个传送门 + " : "")}{_spawnedEnemies.Count} 个敌人");
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}
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/// <summary>
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/// 找一个离已使用点都较远的出生点。
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/// </summary>
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Transform FindSafeSpawnPoint(int startIndex, float minDistance)
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{
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for (int i = startIndex; i < _allSpawnPoints.Count; i++)
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{
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bool safe = true;
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for (int j = 0; j < startIndex; j++)
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{
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if (Vector3.Distance(_allSpawnPoints[i].position, _allSpawnPoints[j].position) < minDistance)
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{
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safe = false;
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break;
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}
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}
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if (safe) return _allSpawnPoints[i];
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}
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return null;
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}
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/// <summary>
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/// 获取出生点编号（用于调试日志）。
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/// </summary>
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int GetSpawnPointIndex(Transform spawnPoint)
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{
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var comp = spawnPoint.GetComponent<EnemySpawnPoint>();
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return comp != null ? comp.Index : -1;
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}
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/// <summary>
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/// Fisher-Yates 洗牌算法。
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/// </summary>
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void Shuffle<T>(List<T> list)
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{
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for (int i = list.Count - 1; i > 0; i--)
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{
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int j = Random.Range(0, i + 1);
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T temp = list[i];
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list[i] = list[j];
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list[j] = temp;
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}
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}
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/// <summary>
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/// 获取所有已生成的敌人。
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/// </summary>
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public List<EnemyAI> GetSpawnedEnemies()
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{
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_spawnedEnemies.RemoveAll(e => e == null);
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return _spawnedEnemies;
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}
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/// <summary>
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/// 获取已生成的玩家。
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/// </summary>
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public GameObject GetSpawnedPlayer() => _spawnedPlayer;
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}
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}
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