BossFragments:阶段过渡 / 逼近选招 / 移动到锚点三个静态建态片段。 ApproachAttackEngagement 的建态逻辑提为 internal static Declare(态名参数化), 模块路径与 Boss 图路径共用同一份行为,Boss 可建多组(地面组/空中组)。 锚点坐标经 IBossControl.AnchorAt / DistanceToAnchor 暴露,不走黑板—— EnemyAiBrain._context 是私有的(BossBase 无从写入),且 ResetScratch 会清黑板 带来隐式时序约束。锚点本就是 Boss 专属知识,归 Boss facet 更直。 锚点漏配 / 下标越界显式抛,不回退到自身位置。 Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
397 lines
17 KiB
C#
397 lines
17 KiB
C#
using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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using BaseGames.Boss;
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using BaseGames.Combat;
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using BaseGames.Core.Events;
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using BaseGames.Parry;
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namespace BaseGames.Enemies
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{
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/// <summary>
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/// Boss 敌人基类。扩展 <see cref="EnemyBase"/> 以支持多阶段切换、技能执行与战斗结束广播。
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/// 具体 Boss 继承此类并重写 <see cref="EnterPhase"/>。
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/// </summary>
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public class BossBase : EnemyBase, BaseGames.AI.IBossControl
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{
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[Header("Boss 配置")]
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[SerializeField] private string _bossId;
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[SerializeField] private BoolEventChannelSO _onBossFightEnded;
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[SerializeField] private BossPhaseEventChannelSO _onBossPhaseChanged;
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[Header("技能执行器")]
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[SerializeField] private BossSkillExecutor _skillExecutor;
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[Header("资源组件(可选)")]
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[SerializeField] private BossResource _bossResource;
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[Header("阶段招池门(可选)")]
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[Tooltip("按阶段启用 / 禁用能力组件;未挂载则所有能力全阶段可用")]
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[SerializeField] private BossPhaseAbilityGate _phaseGate;
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[Header("竞技场锚点(可选)")]
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[Tooltip("定点走位用的锚点集合;AI 图未用到锚点片段时可留空")]
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[SerializeField] private BossArenaAnchors _arenaAnchors;
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[Header("玩家反制事件(可选)")]
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[Tooltip("订阅此频道以响应玩家弹反成功事件")]
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[SerializeField] private ParryInfoEventChannelSO _onParrySuccess;
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public string BossId => _bossId;
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/// <summary>当前是否有 Boss 技能正在执行。</summary>
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public bool IsBossSkillExecuting => _skillExecutor != null && _skillExecutor.IsExecuting;
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protected int _currentPhase = 0;
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/// <summary>当前 Boss 阶段索引。IBossControl 实现。</summary>
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public int CurrentPhase => _currentPhase;
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/// <summary>Boss 资源是否已满。IBossControl 实现。
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/// 未挂 BossResource 即抛——AI 图问了资源却没配资源组件是配置错误,必须暴露。</summary>
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public bool ResourceFull => _bossResource != null
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? _bossResource.IsFull
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: throw new System.InvalidOperationException(
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$"[BossBase] '{name}' 的 AI 图查询了资源满值,但未挂 BossResource 组件。" +
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"请挂上该组件,或从 AI 图里移除资源相关的边。");
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/// <summary>第 index 个竞技场锚点坐标。IBossControl 实现。未挂锚点组件即抛——
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/// AI 图用了锚点片段却没配锚点是配置错误,必须暴露而非回退到自身位置。</summary>
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public Vector2 AnchorAt(int index) => RequireAnchors().At(index);
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/// <summary>当前位置到第 index 个锚点的距离。IBossControl 实现。</summary>
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public float DistanceToAnchor(int index)
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=> Vector2.Distance(transform.position, RequireAnchors().At(index));
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private BossArenaAnchors RequireAnchors()
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=> _arenaAnchors != null ? _arenaAnchors : throw new System.InvalidOperationException(
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$"[BossBase] '{name}' 的 AI 图使用了竞技场锚点,但未挂 BossArenaAnchors 组件。" +
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"请挂上该组件并配好锚点,或从 AI 图里移除锚点片段。");
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private Coroutine _counterStaggerCoroutine;
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// 缓存加权候选与其有效权重(两者等长、下标对应),避免 UseBossSkillWeighted() 每次 new List → GC 分配
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private readonly List<BossSkillSO> _weightedCandidates = new(8);
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private readonly List<float> _candidateWeights = new(8);
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// 单元素缓冲数组,供 ApplyCounterResponse 缓存当前技能,避免 new[] 分配
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private readonly BossSkillSO[] _singleSkillBuf = new BossSkillSO[1];
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protected override void Awake()
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{
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base.Awake();
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// includeInactive:true 确保禁用状态的子组件也能被发现(如分阶段按需启用的执行器)
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if (_skillExecutor == null) _skillExecutor = GetComponentInChildren<BossSkillExecutor>(true);
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if (_bossResource == null) _bossResource = GetComponentInChildren<BossResource>(true);
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if (_phaseGate == null) _phaseGate = GetComponentInChildren<BossPhaseAbilityGate>(true);
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if (_arenaAnchors == null) _arenaAnchors = GetComponentInChildren<BossArenaAnchors>(true);
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}
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protected override void OnEnable()
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{
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base.OnEnable();
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_onParrySuccess?.Subscribe(HandleParrySuccess).AddTo(_subs);
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}
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/// <summary>
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/// 阶段过渡期间完全无敌(<see cref="EnemyBase.TakeDamage"/> 的 IsInvincible 检查由此路由)。
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/// </summary>
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public override bool IsInvincible => IsPhaseTransitioning || base.IsInvincible;
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/// <summary>
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/// 上一次成功执行的技能 ID。<see cref="UseBossSkillWeighted"/> 对其施加权重惩罚,防止相同技能连续重复。
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/// </summary>
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public string LastUsedSkillId { get; private set; }
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// ── 技能执行(决策层调用入口)───────────────────────────────────────
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/// <summary>
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/// 通过技能 ID 执行 Boss 技能。
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/// 若技能未找到、执行器忙或冷却中则返回 false,否则返回 true。
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/// </summary>
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public bool UseBossSkill(string skillId)
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{
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if (_skillExecutor == null || string.IsNullOrEmpty(skillId)) return false;
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if (IsPhaseTransitioning) return false;
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var skill = _skillExecutor.FindSkill(skillId);
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if (skill == null)
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{
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Debug.LogWarning($"[BossBase] 未找到技能 '{skillId}'(Boss: {_bossId})", this);
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return false;
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}
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if (!_skillExecutor.CanUseSkill(skillId))
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return false;
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if (!CheckResourceCost(skill))
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return false;
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_skillExecutor.ExecuteSkill(skill);
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_bossResource?.OnBossUseSkill();
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return true;
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}
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/// <summary>
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/// 在当前阶段可用且冷却就绪的技能中,按 <see cref="BossSkillSO.weight"/> 加权随机选择一个并执行。
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/// 若上一次已使用某技能,则对该技能施加 0.3× 权重惩罚,降低连续重复的概率。
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/// 若无可用技能或执行器忙则返回 false。
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/// </summary>
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public bool UseBossSkillWeighted()
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{
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if (_skillExecutor == null || _skillExecutor.IsExecuting) return false;
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if (IsPhaseTransitioning) return false;
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var skills = _skillExecutor.Skills;
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if (skills == null || skills.Length == 0) return false;
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// 筛选:在当前阶段可用 + 冷却就绪 + weight > 0
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_weightedCandidates.Clear();
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_candidateWeights.Clear();
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foreach (var s in skills)
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{
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if (s == null || s.weight <= 0f) continue;
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if (!_skillExecutor.CanUseSkill(s.skillId)) continue;
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if (!IsSkillAvailableInPhase(s)) continue;
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_weightedCandidates.Add(s);
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// 防重复:上一个技能权重打折
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_candidateWeights.Add(s.skillId == LastUsedSkillId ? s.weight * 0.3f : s.weight);
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}
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// 加权随机抽取(共享原语:无正权重/无候选时返回 -1)
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int idx = BaseGames.Core.WeightedPick.Index(_candidateWeights);
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if (idx < 0) return false;
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BossSkillSO selected = _weightedCandidates[idx];
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if (!CheckResourceCost(selected)) return false;
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_skillExecutor.ExecuteSkill(selected);
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LastUsedSkillId = selected.skillId;
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_bossResource?.OnBossUseSkill();
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return true;
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}
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/// <summary>检查技能的 availablePhaseIndices 是否包含当前阶段(空数组 = 全阶段可用)。</summary>
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private bool IsSkillAvailableInPhase(BossSkillSO skill)
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{
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if (skill.availablePhaseIndices == null || skill.availablePhaseIndices.Length == 0)
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return true;
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foreach (int p in skill.availablePhaseIndices)
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if (p == _currentPhase) return true;
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return false;
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}
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/// <summary>
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/// 检查 Boss 资源是否满足技能的 minRequired 门槛。
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/// 未配置资源组件或 minRequired <= 0 时视为通过。
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/// </summary>
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private bool CheckResourceCost(BossSkillSO skill)
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{
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if (_bossResource == null) return true;
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float min = skill.resourceCost.minRequired;
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if (min <= 0f) return true;
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return _bossResource.CurrentValue >= min;
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}
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// ── 阶段 ──────────────────────────────────────────────────────────────
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/// <summary>当前是否处于阶段过渡(无敌帧 + 过渡演出)期间。</summary>
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public bool IsPhaseTransitioning { get; private set; }
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private Coroutine _phaseTransitionCoroutine;
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/// <summary>
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/// 进入指定阶段。自动打断当前执行中的技能,广播 <see cref="BossPhaseEvent"/> 供 UI / 音乐系统响应。
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/// 子类可重写以添加额外过渡逻辑(动画、无敌帧等)。
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/// </summary>
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public virtual void EnterPhase(int phase)
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{
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// 阶段切换必须先打断正在执行的技能,确保原子性
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_skillExecutor?.InterruptCurrentSkill();
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_currentPhase = phase;
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LastUsedSkillId = null; // 新阶段重置权重惩罚,防止跨阶段漂移
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// 新阶段换招池,上一阶段的防重复记忆不应跨阶段影响选招
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AttackSelector?.ResetRepeatMemory();
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// 阶段 = 换招池:先换池,再广播阶段事件,保证订阅方看到的是新池
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_phaseGate?.ApplyPhase(phase);
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_onBossPhaseChanged?.Raise(new BossPhaseEvent
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{
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BossId = _bossId,
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Phase = phase,
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});
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}
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/// <summary>
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/// 启动阶段过渡演出:无敌帧 + 可选定格时间,结束后自动调用 <see cref="EnterPhase"/>。
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/// 决策层检查 <see cref="IsPhaseTransitioning"/> 来等待过渡完成。
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/// </summary>
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/// <param name="targetPhase">过渡目标阶段索引。</param>
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/// <param name="invincibleDuration">无敌帧持续时间(秒)。</param>
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public void BeginPhaseTransition(int targetPhase, float invincibleDuration)
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{
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if (IsPhaseTransitioning)
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{
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Debug.LogWarning(
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$"[BossBase] '{_bossId}' 已在阶段过渡中(当前阶段 {_currentPhase})," +
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$"忽略跳转至阶段 {targetPhase} 的请求。请检查决策层逻辑是否重复触发阶段切换。",
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this);
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return;
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}
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if (_phaseTransitionCoroutine != null) StopCoroutine(_phaseTransitionCoroutine);
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_phaseTransitionCoroutine = StartCoroutine(PhaseTransitionCoroutine(targetPhase, invincibleDuration));
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}
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private IEnumerator PhaseTransitionCoroutine(int targetPhase, float duration)
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{
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IsPhaseTransitioning = true;
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OnBeginPhaseTransition(targetPhase);
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// 打断技能 + 停止移动
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_skillExecutor?.InterruptCurrentSkill();
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StopMovement();
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// 无敌帧期间接受的伤害由 IsInvincible 属性屏蔽(子类重写 IsInvincible 或在此处理)
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float elapsed = 0f;
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while (elapsed < duration)
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{
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elapsed += Time.deltaTime;
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yield return null;
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}
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EnterPhase(targetPhase);
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IsPhaseTransitioning = false;
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_phaseTransitionCoroutine = null;
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}
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/// <summary>立即终止阶段过渡协程并清除标志位。
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/// 死亡时调用,防止 IsPhaseTransitioning 永久为 true 影响对象池复用。
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/// </summary>
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private void AbortPhaseTransition()
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{
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if (_phaseTransitionCoroutine != null)
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{
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StopCoroutine(_phaseTransitionCoroutine);
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_phaseTransitionCoroutine = null;
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}
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IsPhaseTransitioning = false;
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}
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/// <summary>
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/// 阶段过渡开始时回调(子类可重写以触发演出动画或特殊逻辑)。
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/// 在无敌帧等待之前调用。
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/// </summary>
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protected virtual void OnBeginPhaseTransition(int targetPhase) { }
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/// <summary>检查当前 HP 是否低于指定百分比(0~1)。</summary>
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public bool IsHPBelow(float ratio)
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{
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if (_stats == null || _stats.MaxHP <= 0) return false;
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return (float)_stats.CurrentHP / _stats.MaxHP < ratio;
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}
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protected override void OnDamageTaken(DamageInfo info)
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{
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_bossResource?.OnBossTakeDamage();
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}
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protected override void Die()
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{
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// 死亡时立即中止阶段过渡,防止 IsPhaseTransitioning 标志永久锁死(影响对象池复用)
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AbortPhaseTransition();
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base.Die();
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_onBossFightEnded?.Raise(true);
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}
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// ── 玩家反制响应 ──────────────────────────────────────────────────────
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private void HandleParrySuccess(ParryInfo info)
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{
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if (!IsAlive) return;
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var counterType = info.IsPerfect ? CounterType.PerfectParry : CounterType.Parry;
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ApplyCounterResponse(counterType, string.Empty);
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}
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/// <summary>
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/// 根据 counterType 查找当前技能(或所有技能)的 PlayerCounterResponse 并应用效果。
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/// 可由外部系统(闪避穿越、弱点命中等)直接调用。
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/// </summary>
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public void ApplyCounterResponse(CounterType counterType, string requiredSkillId)
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{
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if (_skillExecutor == null) return;
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// 优先检查当前正在执行的技能的反制规则
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BossSkillSO activeSkill = _skillExecutor.IsExecuting
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? _skillExecutor.FindCurrentSkill()
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: null;
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BossSkillSO[] candidates;
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if (activeSkill != null)
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{
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_singleSkillBuf[0] = activeSkill;
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candidates = _singleSkillBuf;
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}
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else
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{
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candidates = _skillExecutor.Skills;
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}
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if (candidates == null) return;
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foreach (var skill in candidates)
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{
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if (skill?.counterResponses == null) continue;
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foreach (var resp in skill.counterResponses)
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{
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if (resp.counterType != counterType) continue;
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if (!string.IsNullOrEmpty(resp.requiredSkillId) &&
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!string.IsNullOrEmpty(requiredSkillId) &&
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resp.requiredSkillId != requiredSkillId)
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continue;
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ExecuteCounterEffect(resp);
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return; // 每次反制只触发第一条匹配规则
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}
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}
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}
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private void ExecuteCounterEffect(in PlayerCounterResponse resp)
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{
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if (resp.interruptSkill)
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_skillExecutor?.InterruptCurrentSkill();
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if (resp.bossStaggerDuration > 0f)
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{
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if (_counterStaggerCoroutine != null)
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StopCoroutine(_counterStaggerCoroutine);
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_counterStaggerCoroutine = StartCoroutine(CounterStaggerCoroutine(resp.bossStaggerDuration));
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}
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if (resp.openVulnWindow)
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{
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float duration = Mathf.Max(resp.bossStaggerDuration, 1f);
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float multiplier = 1f + resp.bossDamageBonus;
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_skillExecutor?.OpenVulnerabilityWindow(duration, multiplier);
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}
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resp.counterFeedback?.Play();
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}
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private IEnumerator CounterStaggerCoroutine(float duration)
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{
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ForceState(EnemyStateType.Stagger);
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// 时长固定且较短,直接 new WFY 即可;若需优化可接入 WFS 缓存
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yield return new WaitForSeconds(duration);
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if (IsAlive && CurrentState == EnemyStateType.Stagger)
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ForceState(EnemyStateType.Controlled);
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_counterStaggerCoroutine = null;
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}
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public override void OnSpawn()
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{
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base.OnSpawn();
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LastUsedSkillId = null;
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_currentPhase = 0;
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_phaseGate?.ApplyPhase(0); // 对象池复用:回到阶段 0 的启用集
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_skillExecutor?.ResetAllCooldowns();
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}
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}
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}
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