feat: Implement Room Streaming System
- Add RoomStreamingManager to manage room loading and unloading based on player proximity. - Create StreamingBudgetConfigSO for memory and performance budgeting of the streaming system. - Introduce TransitionDirector to handle seamless and atmospheric fade transitions between rooms. - Develop WorldGraph to represent room connectivity and facilitate neighbor queries and distance calculations. - Implement RoomNode and RoomEdge classes to structure room data and connections.
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184
Assets/_Game/Scripts/Enemies/AI/BD_InvestigateLastKnown.cs
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184
Assets/_Game/Scripts/Enemies/AI/BD_InvestigateLastKnown.cs
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#if GRAPH_DESIGNER
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using UnityEngine;
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using Opsive.BehaviorDesigner.Runtime.Tasks;
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using Opsive.BehaviorDesigner.Runtime.Tasks.Actions;
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using BaseGames.Enemies;
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namespace BaseGames.Enemies.AI
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{
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/// <summary>
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/// BD Action：多步搜查（Navigate → LookAround → RandomWalk × N）。
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///
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/// <list type="bullet">
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/// <item><b>Navigate</b>：导航至最后可见位置。</item>
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/// <item><b>LookAround</b>：到达后原地环顾（播放 Look 动画，持续 LookAroundDuration）。</item>
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/// <item><b>WalkRandom</b>：向搜查半径内的随机点移动，重复 RandomStepCount 次。</item>
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/// <item>任意阶段重新发现玩家 → 返回 Failure，BD 树重入追击。</item>
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/// <item>所有步骤完成仍未发现 → 返回 Success，BD 树归位/恢复巡逻。</item>
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/// </list>
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/// </summary>
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[TaskName("Investigate Last Known Pos")]
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[TaskCategory("BaseGames/Enemy/Movement")]
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[TaskDescription("多步搜查：导航到最后已知位置 → 环顾四周 → 随机游走 N 次")]
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public sealed class BD_InvestigateLastKnown : Action
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{
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[Tooltip("到达搜查点后环顾的时长（s）")]
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[SerializeField] private float m_LookAroundDuration = 0.8f;
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[Tooltip("随机行走步数（完成环顾后随机游荡的次数）")]
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[SerializeField] [Min(0)] private int m_RandomStepCount = 2;
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[Tooltip("随机行走半径（m）")]
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[SerializeField] private float m_SearchRadius = 2.5f;
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[Tooltip("到达目标点的判定半径（m）")]
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[SerializeField] private float m_ArriveRadius = 0.6f;
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private enum InvestigateSubStep { Navigate, LookAround, WalkRandom }
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private EnemyBase _enemy;
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private InvestigateSubStep _step;
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private float _stepTimer;
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private int _stepsRemaining;
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private Vector2 _randomTarget;
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private bool _pathFailed;
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private bool _subscribed;
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public override void OnAwake() => _enemy = gameObject.GetComponent<EnemyBase>();
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public override void OnStart()
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{
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_enemy.SetAiPhase(AiPhase.Investigate);
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_step = InvestigateSubStep.Navigate;
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_stepTimer = 0f;
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_stepsRemaining = m_RandomStepCount;
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_pathFailed = false;
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var ac = _enemy.AnimConfig;
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if (_enemy.Animancer != null)
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{
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var clip = ac?.Investigate ?? ac?.Walk;
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if (clip != null) _enemy.Animancer.Play(clip);
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}
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if (!_subscribed && _enemy.Nav != null)
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{
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_enemy.Nav.OnNavPathFailed += HandlePathFailed;
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_subscribed = true;
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}
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_enemy.MoveTo(_enemy.LastKnownPlayerPosition);
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}
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public override TaskStatus OnUpdate()
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{
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if (_enemy == null) return TaskStatus.Failure;
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if (_enemy.IsPlayerVisible()) return TaskStatus.Failure;
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switch (_step)
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{
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case InvestigateSubStep.Navigate: return UpdateNavigate();
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case InvestigateSubStep.LookAround: return UpdateLookAround();
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case InvestigateSubStep.WalkRandom: return UpdateWalkRandom();
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default: return TaskStatus.Success;
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}
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}
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public override void OnEnd()
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{
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if (_subscribed && _enemy?.Nav != null)
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{
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_enemy.Nav.OnNavPathFailed -= HandlePathFailed;
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_subscribed = false;
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}
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_enemy?.StopMovement();
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}
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// ── 阶段逻辑 ────────────────────────────────────────────────────
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private TaskStatus UpdateNavigate()
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{
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Vector2 self = _enemy.transform.position;
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bool arrived = _pathFailed ||
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(self - _enemy.LastKnownPlayerPosition).sqrMagnitude <= m_ArriveRadius * m_ArriveRadius;
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if (!arrived) return TaskStatus.Running;
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_enemy.StopMovement();
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EnterLookAround();
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return TaskStatus.Running;
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}
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private TaskStatus UpdateLookAround()
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{
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_stepTimer += Time.deltaTime;
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if (_stepTimer < m_LookAroundDuration) return TaskStatus.Running;
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if (_stepsRemaining > 0)
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EnterRandomWalk();
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else
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return TaskStatus.Success;
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return TaskStatus.Running;
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}
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private TaskStatus UpdateWalkRandom()
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{
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Vector2 self = _enemy.transform.position;
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bool arrived = _pathFailed ||
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(self - _randomTarget).sqrMagnitude <= m_ArriveRadius * m_ArriveRadius;
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if (!arrived) return TaskStatus.Running;
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_enemy.StopMovement();
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_stepsRemaining--;
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_pathFailed = false;
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if (_stepsRemaining > 0)
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EnterRandomWalk();
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else
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return TaskStatus.Success;
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return TaskStatus.Running;
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}
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// ── 辅助方法 ────────────────────────────────────────────────────
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private void EnterLookAround()
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{
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_step = InvestigateSubStep.LookAround;
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_stepTimer = 0f;
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var ac = _enemy.AnimConfig;
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if (_enemy.Animancer != null)
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{
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var clip = ac?.Investigate ?? ac?.Idle;
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if (clip != null) _enemy.Animancer.Play(clip);
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}
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}
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private void EnterRandomWalk()
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{
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_step = InvestigateSubStep.WalkRandom;
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_pathFailed = false;
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Vector2 origin = _enemy.LastKnownPlayerPosition;
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// 横板地形中只在水平方向随机偏移，保留 origin.y；
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// PathBerserker2d 寻路负责处理跨平台的纵向路径规划。
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float dir = Random.value > 0.5f ? 1f : -1f;
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float dist = Random.Range(0.5f, m_SearchRadius);
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_randomTarget = new Vector2(origin.x + dir * dist, origin.y);
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_enemy.MoveTo(_randomTarget);
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var ac = _enemy.AnimConfig;
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if (_enemy.Animancer != null)
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{
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var clip = ac?.Walk;
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if (clip != null) _enemy.Animancer.Play(clip);
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}
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}
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private void HandlePathFailed() => _pathFailed = true;
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}
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}
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#endif
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