118 lines
5.2 KiB
C#
118 lines
5.2 KiB
C#
using BaseGames.Core;
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using BaseGames.Core.Events;
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using UnityEngine;
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namespace BaseGames.Combat
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{
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/// <summary>
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/// 致命陷阱（地刺、深渊等）——触碰即造成伤害、可无视无敌帧的固定危险区域：
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///
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/// ① 玩家 HurtBox 触碰时，通过 HurtBox.ReceiveDamage() 造成一次伤害
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/// 并携带 IgnoreIFrame 标记（无视翻滚/受击无敌帧，保证陷阱的绝对威胁性）。
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/// ② 若伤害导致玩家死亡 → PlayerController.TakeDamage 已 Raise EVT_PlayerDied，
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/// 走完整死亡流程（死亡动画 → 重载场景）。
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/// ③ 若玩家存活且场景内有检查点 → Raise EVT_CheckpointRespawn，
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/// 由 CheckpointRespawnHandler 执行淡出→传送→淡入，不重载场景。
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/// ④ 若玩家存活但场景内无检查点 → Raise EVT_PlayerDied 作为兜底，
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/// 仍由 DeathRespawnService 重载场景回到存档点。
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///
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/// 可下劈（Pogo）：
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/// - 将 _canPogo = true，并在地刺顶部添加子 GameObject：
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/// · 挂 HurtBox 组件（EnemyHurtBox 层）
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/// · 父链上无 IDamageable → ReceiveDamage 无副作用（HP 不扣除）
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/// · 玩家下劈 HitBox 命中该 HurtBox → HitBox.OnHitConfirmed →
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/// WeaponHitBoxInstance.OnDownHitConfirmed → DownAttackState.OnDownHitConfirmed
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/// → Move.Jump() 完成弹跳，无需额外代码。
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/// - _canPogo = false 则不添加顶部 HurtBox，下劈时玩家仍受地刺伤害。
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/// </summary>
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[RequireComponent(typeof(Collider2D))]
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public class LethalTrap : MonoBehaviour
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{
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[Header("伤害")]
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[Tooltip("每次触碰造成的伤害量（建议设为 1，确保任意陷阱触碰即扟一格血量）")]
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[SerializeField] private int _damage = 1;
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[Header("检测")]
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[Tooltip("勾选 PlayerHurtBox 层")]
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[SerializeField] private LayerMask _playerLayers;
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[Header("事件")]
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[Tooltip("EVT_PlayerDied — 玩家存活但场景内无检查点时触发，走完整死亡/重载流程")]
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[SerializeField] private VoidEventChannelSO _onPlayerDied;
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[Tooltip("EVT_CheckpointRespawn — 玩家存活且场景内有检查点时触发，执行原地传送")]
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[SerializeField] private VoidEventChannelSO _onCheckpointRespawn;
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[Header("设计")]
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[Tooltip("true = 顶部有 HurtBox 子节点可下劈弹跳（需手动添加 Pogo Surface 子节点）")]
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[SerializeField] private bool _canPogo = true;
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private bool _triggered;
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private void Awake()
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{
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var col = GetComponent<Collider2D>();
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if (!col.isTrigger)
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{
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col.isTrigger = true;
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Debug.LogWarning($"[LethalTrap] {name}: Collider2D.isTrigger 已自动设为 true。", this);
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}
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}
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private void OnEnable() => _triggered = false;
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private void OnTriggerEnter2D(Collider2D other)
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{
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if (_triggered) return;
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if ((_playerLayers.value & (1 << other.gameObject.layer)) == 0) return;
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_triggered = true;
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// ── 1. 通过 HurtBox 流水线造成伤害（含防御计算，携带 IgnoreIFrame）────────
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bool playerDiedFromDamage = false;
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if (_damage > 0)
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{
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var hurtBox = other.GetComponent<HurtBox>();
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if (hurtBox != null)
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{
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var info = new DamageInfo.Builder()
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.SetRaw(_damage)
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.SetFlags(DamageFlags.IgnoreIFrame) // 无视无敌帧（翻滚/受击）
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.SetSourceId("lethal_trap")
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.Build();
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hurtBox.ReceiveDamage(info);
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// 检测伤害后玩家存活状态：
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// 若已死亡，PlayerController.TakeDamage 已在同帧内 Raise EVT_PlayerDied；
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// 若存活，需由本组件 Raise 使其回到检查点。
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var damageable = other.transform.root.GetComponentInParent<IDamageable>();
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playerDiedFromDamage = damageable != null && !damageable.IsAlive;
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}
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}
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// ── 2. 若玩家存活（或无 HurtBox / damage=0），回溯至最近检查点 ────────────
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if (!playerDiedFromDamage)
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{
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var cp = ServiceLocator.GetOrDefault<ICheckpointService>();
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if (cp != null && cp.HasCheckpoint)
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_onCheckpointRespawn?.Raise();
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else
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_onPlayerDied?.Raise();
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}
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}
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#if UNITY_EDITOR
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[UnityEngine.ContextMenu("打印 Pogo 提示")]
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private void PrintPogoInfo()
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{
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Debug.Log(
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_canPogo
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? $"[LethalTrap] {name}: _canPogo=true。请在顶部添加子 GO + HurtBox(EnemyHurtBox 层) + Collider2D(isTrigger=true)，父链上无 IDamageable。"
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: $"[LethalTrap] {name}: _canPogo=false，无下劈弹跳。",
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this);
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}
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#endif
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}
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}
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