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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165
Assets/_Game/Scripts/Enemies/Navigation/FlyingDirectNavigator.cs
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165
Assets/_Game/Scripts/Enemies/Navigation/FlyingDirectNavigator.cs
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using System;
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using UnityEngine;
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namespace BaseGames.Enemies.Navigation
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{
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/// <summary>
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/// 飞行单位直线导航代理。
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/// 不依赖 PathBerserker2d 寻路，直接通过 Rigidbody2D.MovePosition 向目标点直飞。
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///
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/// 特性：
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/// <list type="bullet">
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/// <item>空闲时施加正弦波形悬停偏移，产生飘浮感。</item>
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/// <item>NavLink 相关成员均返回安全默认值（飞行单位不使用平台连接段）。</item>
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/// <item>目标到达后触发 <see cref="OnGoalReached"/> 事件（替代轮询 IsAtDestination）。</item>
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/// </list>
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///
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/// 使用方式：挂载到飞行怪 Prefab 根节点，替代 EnemyNavAgent；
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/// <see cref="EnemyBase.Awake"/> 的 GetComponent<IPathAgent>() 自动发现此组件。
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/// </summary>
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[RequireComponent(typeof(Rigidbody2D))]
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public sealed class FlyingDirectNavigator : MonoBehaviour, IPathAgent
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{
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[Header("移动参数")]
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[Tooltip("直飞速度（m/s）")]
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[SerializeField] private float _moveSpeed = 3f;
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[Tooltip("到达目标的判定距离（m）")]
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[SerializeField] private float _stoppingDist = 0.15f;
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[Header("游荡参数（WalkToRandom）")]
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[Tooltip("随机游荡目标点距当前位置的最大半径（m）。")]
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[Min(0.1f)]
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[SerializeField] private float _randomWalkRadius = 3f;
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[Header("悬停参数（空闲 / 无目标时）")]
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[Tooltip("悬停横向摆动速度（m/s）")]
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[SerializeField] private float _hoverLateralSpeed = 0.5f;
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[Tooltip("悬停纵向正弦频率（Hz）")]
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[SerializeField] private float _hoverSineFrequency = 1.2f;
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[Tooltip("悬停纵向正弦振幅（m/s）")]
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[SerializeField] private float _hoverSineAmplitude = 0.25f;
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[Tooltip("横向方向翻转周期（s）")]
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[SerializeField] private float _hoverFlipInterval = 1.5f;
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// ── IPathAgent 事件 ────────────────────────────────────────────
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public event Action<NavLinkType> OnLinkStarted { add { } remove { } }
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public event Action<NavLinkType> OnLinkCompleted { add { } remove { } }
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public event Action OnNavPathFailed { add { } remove { } }
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public event Action OnGoalReached;
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// ── 状态 ───────────────────────────────────────────────────────
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private Rigidbody2D _rb;
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private Vector2? _destination;
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private bool _isMoving;
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private bool _goalFired;
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private float _hoverTimer;
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private float _hoverFlipTimer;
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private float _hoverDir = 1f;
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// ── IPathAgent 属性 ────────────────────────────────────────────
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public bool IsMoving => _isMoving;
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public bool IsOnLink => false;
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public NavLinkType CurrentLinkType => NavLinkType.None;
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public Vector2 CurrentLinkStart => Vector2.zero;
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public Vector2 CurrentLinkEnd => Vector2.zero;
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// ── Unity 生命周期 ─────────────────────────────────────────────
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private void Awake()
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{
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_rb = GetComponent<Rigidbody2D>();
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_rb.gravityScale = 0f;
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_rb.constraints = RigidbodyConstraints2D.FreezeRotation;
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}
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private void FixedUpdate()
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{
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if (_destination.HasValue)
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UpdateChase();
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else
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UpdateHover();
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}
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// ── IPathAgent 方法 ────────────────────────────────────────────
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public void RequestMoveTo(Vector2 target)
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{
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_destination = target;
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_isMoving = true;
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_goalFired = false;
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}
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public void StopNavigation()
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{
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_destination = null;
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_isMoving = false;
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_rb.velocity = Vector2.zero;
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}
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public bool IsAtDestination()
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{
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if (!_destination.HasValue) return true;
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return ((Vector2)transform.position - _destination.Value).sqrMagnitude
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<= _stoppingDist * _stoppingDist;
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}
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public void SetSpeed(float speed) => _moveSpeed = speed;
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public bool IsNearEdge() => false; // 飞行单位不检测平台边缘
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public bool CanReach(Vector2 target) => true; // 飞行单位直飞，始终可达
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public bool WalkToRandom()
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{
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// 在当前位置随机偏移一个 2D 方向（供 BD_WalkRandom 调用）
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Vector2 offset = UnityEngine.Random.insideUnitCircle.normalized * _randomWalkRadius;
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RequestMoveTo((Vector2)transform.position + offset);
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return true;
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}
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// ── 内部移动逻辑 ───────────────────────────────────────────────
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private void UpdateChase()
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{
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Vector2 myPos = _rb.position;
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Vector2 target = _destination.Value;
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float sqrDist = (target - myPos).sqrMagnitude;
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if (sqrDist <= _stoppingDist * _stoppingDist)
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{
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_rb.velocity = Vector2.zero;
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_isMoving = false;
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_destination = null;
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if (!_goalFired)
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{
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_goalFired = true;
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OnGoalReached?.Invoke();
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}
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return;
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}
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Vector2 newPos = Vector2.MoveTowards(myPos, target, _moveSpeed * Time.fixedDeltaTime);
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_rb.MovePosition(newPos);
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// 面向移动方向
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float dx = target.x - myPos.x;
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if (Mathf.Abs(dx) > 0.05f)
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{
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var s = transform.localScale;
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s.x = Mathf.Abs(s.x) * Mathf.Sign(dx);
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transform.localScale = s;
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}
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}
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private void UpdateHover()
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{
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_hoverFlipTimer += Time.fixedDeltaTime;
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if (_hoverFlipTimer >= _hoverFlipInterval)
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{
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_hoverFlipTimer = 0f;
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_hoverDir = -_hoverDir;
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}
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float sineY = Mathf.Sin(Time.time * _hoverSineFrequency * Mathf.PI * 2f) * _hoverSineAmplitude;
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_rb.velocity = new Vector2(_hoverDir * _hoverLateralSpeed, sineY);
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}
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}
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}
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