Joywayer
a1b4e629aa
- 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.
97 lines
3.6 KiB
C#
97 lines
3.6 KiB
C#
#if GRAPH_DESIGNER
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using Opsive.BehaviorDesigner.Runtime.Tasks;
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using Opsive.BehaviorDesigner.Runtime.Tasks.Actions;
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using UnityEngine;
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namespace BaseGames.Enemies.AI
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{
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/// <summary>
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/// BD Action：战斗站位控制。
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/// 在 [m_PreferredMinDist, m_PreferredMaxDist] 范围内保持与玩家的水平距离：
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/// - 距离过近 → 后退
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/// - 距离过远 → 靠近
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/// - 在范围内 → 停止移动，持续朝向玩家
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/// 始终返回 Running，上层 BT 通过 Abort 或条件终止该 Task。
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/// </summary>
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[TaskName("Maintain Combat Distance")]
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[TaskCategory("BaseGames/Enemy/Combat")]
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[TaskDescription("在战斗中维持与目标的理想距离范围")]
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public class BD_MaintainCombatDistance : Action
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{
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[Tooltip("期望最小距离（m）；小于此值开始后退")]
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[SerializeField] private float m_PreferredMinDist = 2f;
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[Tooltip("期望最大距离（m）；大于此值开始靠近")]
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[SerializeField] private float m_PreferredMaxDist = 4f;
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[Tooltip("后退速度（m/s），默认使用 WalkSpeed")]
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[SerializeField] private float m_BackpedaleSpeed = 0f;
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[Tooltip("每帧重新规划路径的阈值（m）；玩家移动超过此距离才重规划，降低频率")]
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[SerializeField] private float m_ReplanThreshold = 0.5f;
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private EnemyBase _enemy;
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private Vector2 _lastPlayerPos;
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private float _sqrMin;
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private float _sqrMax;
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public override void OnAwake() => _enemy = GetComponent<EnemyBase>();
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public override void OnStart()
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{
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_sqrMin = m_PreferredMinDist * m_PreferredMinDist;
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_sqrMax = m_PreferredMaxDist * m_PreferredMaxDist;
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_lastPlayerPos = Vector2.positiveInfinity;
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}
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public override TaskStatus OnUpdate()
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{
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if (_enemy == null || _enemy.PlayerTransform == null)
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return TaskStatus.Failure;
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if (_enemy.Stats == null)
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return TaskStatus.Failure;
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_enemy.FacePlayer();
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float sqrDist = _enemy.Stats.SqrDistanceToPlayer;
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if (sqrDist < _sqrMin)
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{
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// 距离过近 → 后退（向远离玩家方向移动）
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_enemy.Nav?.StopNavigation();
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Vector2 toPlayer = ((Vector2)_enemy.PlayerTransform.position - (Vector2)_enemy.transform.position).normalized;
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float backDir = -Mathf.Sign(toPlayer.x);
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float speed = m_BackpedaleSpeed > 0f ? m_BackpedaleSpeed : _enemy.Stats.WalkSpeed;
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_enemy.Movement?.MoveWithSpeed(backDir, speed);
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}
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else if (sqrDist > _sqrMax)
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{
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// 距离过远 → 靠近
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Vector2 playerPos = _enemy.PlayerTransform.position;
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float moved = ((Vector2)playerPos - _lastPlayerPos).sqrMagnitude;
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if (moved > m_ReplanThreshold * m_ReplanThreshold)
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{
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_lastPlayerPos = playerPos;
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_enemy.MoveTo(playerPos);
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}
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}
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else
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{
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// 在最优范围内 → 停止导航，原地保持朝向
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_enemy.Nav?.StopNavigation();
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_enemy.Movement?.StopHorizontal();
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}
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return TaskStatus.Running;
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}
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public override void OnEnd()
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{
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_enemy?.Movement?.StopHorizontal();
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_enemy?.Nav?.StopNavigation();
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}
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}
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}
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#endif
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