Joywayer
cc046c53b3
HitBox 新增 HitMode Single/Interval：Interval 用 Enter/Exit 跟踪占用 + Update 轮询，对停留目标按间隔重判，不再依赖 OnTriggerEnter 单次语义。BodyContactDamage 改用 Interval 模式，修复停留在接触判定内、无敌结束后不再受伤的 bug；FlyingEnemy 接触伤害加按目标间隔节流。ProjectileConfigSO 新增 MaxHits 默认 1 即命中即消失，Projectile 按命中预算回收，修掉默认无限穿透；弹反守卫避免反射后立即回收。 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
421 lines
20 KiB
C#
421 lines
20 KiB
C#
using System.Collections.Generic;
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using UnityEngine;
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using BaseGames.Core;
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namespace BaseGames.Combat
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{
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/// <summary>
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/// 攻击判定盒。挂载在武器 Prefab 或技能 HitBox Prefab 的子节点上。
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/// 直接挂在 Player Prefab 子节点 [HitBoxGround/Up/Down/Air]。
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/// Collider2D 需设 IsTrigger = true，Layer = PlayerHitBox 或 EnemyHitBox。
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///
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/// 多碰撞体模式：在子节点上挂载 HitBoxColliderProxy + Collider2D 即可组合任意形状。
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/// HitBox 本身可不带 Collider2D（仅代理子节点）或同时拥有直属 Collider2D。
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/// </summary>
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/// <summary>
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/// 命中节奏模式。
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/// <list type="bullet">
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/// <item><see cref="Single"/>：每次激活对每个目标只判一次（近战挥击、普通投射物）。</item>
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/// <item><see cref="Interval"/>：对停留在判定盒内的同一目标，每 <c>_hitInterval</c> 秒重判一次
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/// （接触伤害、持续 AOE、危险区）。靠 Enter/Exit 跟踪占用 + Update 轮询，
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/// 不依赖 OnTriggerEnter 的单次语义。</item>
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/// </list>
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/// </summary>
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public enum HitMode { Single, Interval }
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public class HitBox : MonoBehaviour
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{
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[SerializeField] private DamageSourceSO _defaultSource;
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[SerializeField] private float _hitCooldown = 0.1f;
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[Header("命中节奏")]
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[Tooltip("Single=每次激活每个目标判一次；Interval=对停留目标按间隔持续重判（接触伤害/持续区域）。")]
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[SerializeField] private HitMode _hitMode = HitMode.Single;
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[Tooltip("Interval 模式下，对同一目标重复造成伤害的间隔（秒）。")]
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[SerializeField] private float _hitInterval = 0.5f;
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/// <summary>
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/// HitBox 标识符，供 PlayerAnimationEvents / EnemyAnimationEvents 按名称精确激活特定判定盒。
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/// 留空表示"无 Id"；事件 payload 为空时将操作所有 HitBox。
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/// </summary>
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[SerializeField] private string _id = "";
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public string Id => _id;
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/// <summary>
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/// 对立阵营 HitBox 所在的 Layer 掩码（用于拼刀检测）。
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/// Inspector 中将 PlayerHitBox 与 EnemyHitBox 两个 Layer 均勾选。
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/// </summary>
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[SerializeField] private LayerMask _rivalHitBoxMask;
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private DamageSourceSO _currentSource;
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private Transform _attackerTransform;
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private Rigidbody2D _ownerRigidbody;
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private bool _isActive;
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private IClashService _clashService;
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// 直属碰撞体（本 GameObject 上）
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private Collider2D[] _directColliders = System.Array.Empty<Collider2D>();
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// 子节点代理碰撞体
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private HitBoxColliderProxy[] _proxies = System.Array.Empty<HitBoxColliderProxy>();
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// 激活 ID：每次 Activate() 递增，写入 DamageInfo.HitActivationId，
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// HurtBoxOwnerGuard 据此防止多 HurtBox 节点被同一次攻击重复扣血。
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private static uint _nextActivationId = 1;
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private uint _currentActivationId;
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/// <summary>HitBox 当前是否激活（供 ClashResolver 查询）。</summary>
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public bool IsActive => _isActive;
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/// <summary>当前 Source 是否携带 CanClash 标记（供 ClashResolver 查询）。</summary>
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public bool CanClash => _currentSource != null && _currentSource.Flags.HasFlag(DamageFlags.CanClash);
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/// <summary>宿主角色的 Rigidbody2D（用于拼刀弹开力计算）。</summary>
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public Rigidbody2D OwnerRigidbody => _ownerRigidbody;
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// 拼刀检测所需的对立层掩码（Inspector 配置）
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/// <summary>命中确认委托（PlayerCombat / EnemyCombat 订阅）。</summary>
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public event System.Action<DamageInfo> OnHitConfirmed;
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// 宿主投射物缓存（Activate 时填入，DamageInfo.SourceProjectile 写入用）
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private Projectile _ownerProjectile;
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/// <summary>
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/// 激活 HitBox。source/attacker 均可选，未传则使用 Inspector 默认值。
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/// ⚠️ 不存在 Activate(float duration) 重载。
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/// </summary>
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public void Activate(DamageSourceSO source = null, Transform attacker = null)
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{
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_currentActivationId = _nextActivationId++;
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_currentSource = source ?? _defaultSource;
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_attackerTransform = attacker ?? transform;
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_isActive = true;
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_ownerRigidbody = _attackerTransform.GetComponentInParent<Rigidbody2D>();
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foreach (var col in _directColliders) col.enabled = true;
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foreach (var proxy in _proxies) proxy.SetEnabled(true);
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// 每次激活清空当前激活期已命中目标集合（防止连击连段导致同一阶段多次命中目标）
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_hitThisActivation.Clear();
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_hitCooldownTimers.Clear();
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_intervalTargets.Clear();
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}
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public void Deactivate()
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{
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_isActive = false;
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foreach (var col in _directColliders) col.enabled = false;
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foreach (var proxy in _proxies) proxy.SetEnabled(false);
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_hitThisActivation.Clear();
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_hitCooldownTimers.Clear();
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_intervalTargets.Clear();
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}
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/// <summary>仅替换当前 DamageSource（不改变激活状态，供 PlayerCombat 连击段切换）。</summary>
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public void SetDamageSource(DamageSourceSO source)
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{
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if (source != null) _currentSource = source;
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}
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private void Awake()
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{
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// 收集本节点上所有直属 Collider2D，并验证 isTrigger
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_directColliders = GetComponents<Collider2D>();
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foreach (var col in _directColliders)
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{
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if (!col.isTrigger)
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Debug.LogWarning($"[HitBox] {name}: Collider2D ({col.GetType().Name}) isTrigger 应为 true。", this);
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col.enabled = false;
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}
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// 注册所有子代 HitBoxColliderProxy（子节点多形状模式）
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_proxies = GetComponentsInChildren<HitBoxColliderProxy>(true);
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foreach (var proxy in _proxies)
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proxy.Init(this);
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// 缓存 IClashService：OnTriggerEnter2D 为物理热路径，避免每次调用 Dictionary 查找
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_clashService = ServiceLocator.GetOrDefault<IClashService>();
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// 缓存宿主投射物（仅 Projectile GameObject 上挂载的 HitBox 非 null）
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_ownerProjectile = GetComponent<Projectile>();
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}
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private void OnDisable()
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{
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_isActive = false;
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foreach (var col in _directColliders) if (col != null) col.enabled = false;
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foreach (var proxy in _proxies) proxy.SetEnabled(false);
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_hitThisActivation.Clear();
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_hitCooldownTimers.Clear();
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_intervalTargets.Clear();
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}
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private void Update()
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{
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// 仅 Interval 模式需要轮询：对仍停留在判定盒内的目标按间隔重判
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if (!_isActive || _hitMode != HitMode.Interval || _intervalTargets.Count == 0) return;
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float now = Time.time;
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_intervalTickBuffer.Clear();
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foreach (var kv in _intervalTargets)
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if (now - kv.Value >= _hitInterval) _intervalTickBuffer.Add(kv.Key);
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for (int i = 0; i < _intervalTickBuffer.Count; i++)
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{
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Collider2D col = _intervalTickBuffer[i];
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// 目标被销毁/禁用：移除占用记录（Exit 可能因对象失活而未触发）
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if (col == null || !col.isActiveAndEnabled)
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{
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_intervalTargets.Remove(col);
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continue;
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}
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_intervalTargets[col] = now;
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DealDamage(col, null);
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}
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}
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private void OnTriggerEnter2D(Collider2D other) => HandleTriggerEnter(other, null);
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private void OnTriggerExit2D(Collider2D other) => HandleTriggerExit(other);
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/// <summary>代理入口：由 HitBoxColliderProxy 或本节点 OnTriggerEnter2D 转发。</summary>
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internal void HandleTriggerEnter(Collider2D other, Collider2D sourceCollider)
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{
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if (!_isActive) return;
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if (_currentSource == null)
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{
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Debug.LogWarning($"[HitBox] {name}: 无 DamageSourceSO，跳过命中。", this);
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return;
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}
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if (_hitMode == HitMode.Interval)
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{
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// 周期接触模式：记录占用并立即结算一次；后续由 Update 按间隔对仍停留的目标重判。
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_intervalTargets[other] = Time.time;
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DealDamage(other, sourceCollider);
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return;
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}
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// Single 模式：同一激活期同一 Collider 只命中一次（一次攻击每个目标至多命中一次）+ 抖动冷却
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if (!_hitThisActivation.Add(other)) return;
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if (!CheckCooldown(other)) return;
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DealDamage(other, sourceCollider);
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}
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/// <summary>
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/// 实际伤害结算：自身排除 → 拼刀 → HurtBox → IBreakable。
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/// 由 Single 模式 Enter、Interval 模式 Enter 与 Update 共同调用。
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/// </summary>
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private void DealDamage(Collider2D other, Collider2D sourceCollider)
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{
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// 排除自身：攻击方与受击方属于同一根 GameObject 时跳过（防止近战 EnemyHitBox 命中同一敌人的 EnemyHurtBox）
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if (other.transform.root == _attackerTransform.root) return;
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Vector2 knockDir = ((Vector2)other.bounds.center
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- (Vector2)_attackerTransform.position).normalized;
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// ⚡ 零 GC：struct 工厂，运行时字段内联传入
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var info = DamageInfo.From(
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_currentSource,
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knockDir,
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_attackerTransform.position,
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_attackerTransform.gameObject.layer,
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_ownerProjectile);
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info.HitActivationId = _currentActivationId;
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// ① 拼刀检测：当前 HitBox 携带 CanClash 标记，且碰到对立阵营的 HitBox 层
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int otherLayer = other.gameObject.layer;
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bool isRivalHitBoxLayer = (_rivalHitBoxMask.value & (1 << otherLayer)) != 0;
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if (isRivalHitBoxLayer && CanClash)
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{
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if (other.TryGetComponent<HitBox>(out var rivalHitBox) &&
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rivalHitBox.IsActive && rivalHitBox.CanClash)
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{
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_clashService?.ResolveClash(this, rivalHitBox);
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return; // 拼刀，中止伤害流水线
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}
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}
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// ② 命中 HurtBox
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if (other.TryGetComponent<HurtBox>(out var hurtBox))
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{
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// hitPoint：优先使用触发命中的碰撞体中心在 HurtBox 表面的最近点；
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// 无 sourceCollider（直属碰撞体）时回退到 HitBox 节点坐标。
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Vector2 hitOrigin = sourceCollider != null
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? (Vector2)sourceCollider.bounds.center
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: (Vector2)transform.position;
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Vector3 hitPoint = other.ClosestPoint(hitOrigin);
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hurtBox.ReceiveDamage(info, hitPoint);
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OnHitConfirmed?.Invoke(info);
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return;
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}
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// ③ 命中 IBreakable（机关/障碍物）
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if (other.TryGetComponent<IBreakable>(out var breakable))
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breakable.TryInteract(info);
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}
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// ── 当前激活期已命中目标集合（防止复合子 Collider 导致同帧多次命中）────────────
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private readonly HashSet<Collider2D> _hitThisActivation = new(8);
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// ── 同目标多帧命中冷却（防止 Trigger 处于重叠状态时重入等殊情导致的连击）──
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private readonly Dictionary<Collider2D, float> _hitCooldownTimers = new(8);
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// ── Interval 模式：当前停留在判定盒内的目标 → 上次命中时间（Enter 加入 / Exit 移除）──
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private readonly Dictionary<Collider2D, float> _intervalTargets = new(8);
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// Update 轮询时的临时缓冲（避免遍历字典时修改 + 降低 GC）
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private readonly List<Collider2D> _intervalTickBuffer = new(8);
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/// <summary>
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/// 配置为周期接触伤害模式（BodyContactDamage 等持续接触源在 OnEnable 时调用）。
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/// 使持续接触的判定盒按 <paramref name="interval"/> 对停留目标重复造成伤害，
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/// 而不依赖 OnTriggerEnter 的单次语义。
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/// </summary>
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public void SetIntervalMode(float interval)
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{
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_hitMode = HitMode.Interval;
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if (interval > 0f) _hitInterval = interval;
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}
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/// <summary>代理出口：由 HitBoxColliderProxy 或本节点 OnTriggerExit2D 转发。</summary>
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internal void HandleTriggerExit(Collider2D other)
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{
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// 目标离开判定区域时清除其冷却记录与占用记录，防止持续激活的 HitBox（环境危险等）
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// 因有效目标持续流动而无限积累已离场对象。
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// 注意：_hitThisActivation 刻意保留，确保同一激活期内不重复命中。
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_hitCooldownTimers.Remove(other);
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_intervalTargets.Remove(other);
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}
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private bool CheckCooldown(Collider2D other)
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{
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float now = Time.time;
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if (_hitCooldownTimers.TryGetValue(other, out float last) && now - last < _hitCooldown)
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return false;
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_hitCooldownTimers[other] = now;
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return true;
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}
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#if UNITY_EDITOR
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private void OnDrawGizmos()
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{
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Color fill = _isActive ? new Color(1f, 0.15f, 0.15f, 0.25f) : new Color(1f, 0.15f, 0.15f, 0.05f);
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Color outline = _isActive ? new Color(1f, 0.15f, 0.15f, 0.90f) : new Color(1f, 0.15f, 0.15f, 0.25f);
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// 直属碰撞体
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foreach (var col in GetComponents<Collider2D>())
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DrawCollider2DFilled(col, fill, outline);
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// 子代代理碰撞体
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foreach (var proxy in GetComponentsInChildren<HitBoxColliderProxy>(true))
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{
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var proxyCol = proxy.GetComponent<Collider2D>();
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if (proxyCol != null) DrawCollider2DFilled(proxyCol, fill, outline);
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}
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}
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// ── Gizmo 辅助（填充 + 轮廓，不依赖外部工具类）──────────────────────────
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/// <summary>根据 Collider2D 类型绘制带填充色和轮廓的 2D Gizmo（供 HurtBox 等复用）。</summary>
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public static void DrawCollider2DFilled(Collider2D col, Color fill, Color outline)
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{
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var prevMatrix = UnityEditor.Handles.matrix;
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UnityEditor.Handles.matrix = col.transform.localToWorldMatrix;
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switch (col)
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{
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case BoxCollider2D box:
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DrawFilledRect2D(box.offset, box.size, fill, outline);
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break;
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case CircleCollider2D circle:
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DrawFilledCircle2D(circle.offset, circle.radius, fill, outline);
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break;
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case CapsuleCollider2D caps:
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DrawFilledCapsule2D(caps.offset, caps.size, caps.direction, fill, outline);
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break;
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case PolygonCollider2D poly:
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for (int p = 0; p < poly.pathCount; p++)
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DrawFilledPolygonPath2D(poly.GetPath(p), fill, outline);
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break;
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default:
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UnityEditor.Handles.matrix = Matrix4x4.identity;
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DrawFilledRect2D(col.bounds.center, col.bounds.size, fill, outline);
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break;
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}
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UnityEditor.Handles.matrix = prevMatrix;
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}
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/// <summary>向后兼容的线框接口（内部改调 DrawCollider2DFilled）。</summary>
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public static void DrawCollider2DWire(Collider2D col)
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=> DrawCollider2DFilled(col, new Color(1f, 1f, 1f, 0.05f), new Color(1f, 1f, 1f, 0.8f));
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private static void DrawFilledRect2D(Vector2 center, Vector2 size, Color fill, Color outline)
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{
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float hx = size.x * 0.5f, hy = size.y * 0.5f;
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var verts = new Vector3[]
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{
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new Vector3(center.x - hx, center.y + hy, 0f),
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new Vector3(center.x + hx, center.y + hy, 0f),
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new Vector3(center.x + hx, center.y - hy, 0f),
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new Vector3(center.x - hx, center.y - hy, 0f),
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};
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UnityEditor.Handles.DrawSolidRectangleWithOutline(verts, fill, outline);
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}
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private static void DrawFilledCircle2D(Vector2 center, float radius, Color fill, Color outline)
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{
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Vector3 c = new Vector3(center.x, center.y, 0f);
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UnityEditor.Handles.color = fill;
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UnityEditor.Handles.DrawSolidDisc(c, Vector3.back, radius);
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UnityEditor.Handles.color = outline;
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UnityEditor.Handles.DrawWireDisc(c, Vector3.back, radius);
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}
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private static readonly System.Collections.Generic.List<Vector3> _capsuleVertsBuf
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= new System.Collections.Generic.List<Vector3>(64);
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private static void DrawFilledCapsule2D(Vector2 offset, Vector2 size,
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CapsuleDirection2D dir, Color fill, Color outline)
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{
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bool vert = dir == CapsuleDirection2D.Vertical;
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float radius = vert ? size.x * 0.5f : size.y * 0.5f;
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float half = Mathf.Max(0f, (vert ? size.y : size.x) * 0.5f - radius);
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Vector2 axis = vert ? Vector2.up : Vector2.right;
|
||
Vector2 capA = offset + axis * half; // 顶部（竖向）或右端（横向）圆心
|
||
Vector2 capB = offset - axis * half; // 底部（竖向）或左端（横向）圆心
|
||
|
||
const int segs = 12;
|
||
_capsuleVertsBuf.Clear();
|
||
|
||
float baseA = vert ? 0f : -Mathf.PI * 0.5f;
|
||
for (int i = 0; i <= segs; i++)
|
||
{
|
||
float a = baseA + (float)i / segs * Mathf.PI;
|
||
_capsuleVertsBuf.Add(new Vector3(capA.x + Mathf.Cos(a) * radius,
|
||
capA.y + Mathf.Sin(a) * radius, 0f));
|
||
}
|
||
|
||
float baseB = vert ? Mathf.PI : Mathf.PI * 0.5f;
|
||
for (int i = 0; i <= segs; i++)
|
||
{
|
||
float a = baseB + (float)i / segs * Mathf.PI;
|
||
_capsuleVertsBuf.Add(new Vector3(capB.x + Mathf.Cos(a) * radius,
|
||
capB.y + Mathf.Sin(a) * radius, 0f));
|
||
}
|
||
|
||
var arr = _capsuleVertsBuf.ToArray();
|
||
UnityEditor.Handles.color = fill;
|
||
UnityEditor.Handles.DrawAAConvexPolygon(arr);
|
||
UnityEditor.Handles.color = outline;
|
||
for (int i = 0; i < arr.Length; i++)
|
||
UnityEditor.Handles.DrawLine(arr[i], arr[(i + 1) % arr.Length]);
|
||
}
|
||
|
||
private static void DrawFilledPolygonPath2D(Vector2[] path, Color fill, Color outline)
|
||
{
|
||
if (path == null || path.Length < 3) return;
|
||
var verts = System.Array.ConvertAll(path, p => new Vector3(p.x, p.y, 0f));
|
||
UnityEditor.Handles.color = fill;
|
||
UnityEditor.Handles.DrawAAConvexPolygon(verts); // 凹多边形仅轮廓准确，填充近似
|
||
UnityEditor.Handles.color = outline;
|
||
for (int i = 0; i < verts.Length; i++)
|
||
UnityEditor.Handles.DrawLine(verts[i], verts[(i + 1) % verts.Length]);
|
||
}
|
||
#endif
|
||
}
|
||
}
|