258 lines
9.8 KiB
C#
258 lines
9.8 KiB
C#
using UnityEngine;
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using System;
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using System.Collections;
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using GameFramework;
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using Architecture.Core;
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using Architecture.Variables;
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namespace IndianOceanAssets.Engine2_5D
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{
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// Handles health, damage, and death for entities
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public class HealthSystem : MonoBehaviour
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{
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[Header("SO 事件通道（替代 static onPlayerDamaged 事件）")]
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[SerializeField] private GameEvent onPlayerDamagedEvent;
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[Header("SO 事件通道（玩家死亡，替代直接调用 GameManager.GameOver）")]
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[SerializeField] private GameEvent onPlayerDiedEvent;
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[Header("SO 变量（供 EnemyHealthBar / HUD 订阅，替代反射读取私有字段）")]
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[SerializeField] private IntVariable healthVar;
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[SerializeField] private IntVariable maxHealthVar;
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[Range(1, 100)]
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[SerializeField]
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private int maxHealth = 5; // Maximum health
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private int health = 5; // Current health
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[SerializeField]
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private GameObject deathEffect; // Effect prefab on death
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[SerializeField]
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private bool isPlayer; // Is this the player?
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[Header("消隐特效")]
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[Tooltip("死亡消隐使用的溶解材质（Custom/SpriteDissolve shader）")]
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[SerializeField] private Material dissolveMaterial;
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[Tooltip("消隐动画持续时间（秒）")]
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[SerializeField] private float fadeDuration = 2f;
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private bool _isDead = false; // 防止重复触发死亡
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private bool _isInvincible = false; // 无敌状态
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private float _invincibleTimer = 0f; // 无敌剩余时间（<=0 表示永久无敌）
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private bool _warnedDamaged = false; // 防止 onPlayerDamagedEvent 空引用告警刷屏
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[Header("受伤无敌")]
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[Tooltip("玩家受伤后的无敌时间（秒）")]
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[SerializeField] private float damageInvincibleDuration = 2f;
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/// <summary>是否已死亡（只读）</summary>
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public bool IsDead => _isDead;
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/// <summary>是否处于无敌状态（只读）</summary>
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public bool IsInvincible => _isInvincible;
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/// <summary>当前血量（只读）</summary>
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public int CurrentHealth => health;
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/// <summary>最大血量（只读）</summary>
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public int MaxHealth => maxHealth;
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/// <summary>血量变化事件（current, max）。敌人血条等本地订阅者用于刷新显示，替代反射读取私有字段。</summary>
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public event System.Action<int, int> OnHealthChanged;
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// 编辑器实时校验：事件字段未接线时给出黄色警告三角 + 控制台告警
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private void OnValidate()
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{
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if (isPlayer && onPlayerDamagedEvent == null)
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Debug.LogWarning($"[HealthSystem] 玩家 HealthSystem 的 On Player Damaged Event 未接线（{gameObject.name}）。受击泛红不会出现。", this);
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if (isPlayer && onPlayerDiedEvent == null)
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Debug.LogWarning($"[HealthSystem] 玩家 HealthSystem 的 On Player Died Event 未接线（{gameObject.name}）。玩家死亡不会触发过场。", this);
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}
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// Initializes health
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private void Start()
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{
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health = maxHealth;
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if (isPlayer)
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{
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if (maxHealthVar != null) maxHealthVar.Value = maxHealth;
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if (healthVar != null) healthVar.Value = health;
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}
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}
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// Applies damage and checks for death
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public void Damage(int damageAmount)
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{
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if (_isDead) return; // 已死亡，不再处理
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if (_isInvincible) return; // 无敌状态，免疫伤害
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health -= damageAmount;
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if (isPlayer && healthVar != null) healthVar.Value = health;
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OnHealthChanged?.Invoke(health, maxHealth);
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// 玩家受伤时触发事件（用于受击泛红特效）
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if (isPlayer)
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{
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if (onPlayerDamagedEvent != null)
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onPlayerDamagedEvent.Raise();
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else if (!_warnedDamaged)
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{
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Debug.LogWarning("[HealthSystem] onPlayerDamagedEvent 未接线！受击泛红特效不会触发。请在玩家 HealthSystem 的 On Player Damaged Event 字段拖入 OnPlayerDamaged 资产。", this);
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_warnedDamaged = true;
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}
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}
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// 播放受伤音效
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if (isPlayer && AudioManager.Instance != null)
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AudioManager.Instance.PlaySFXFromResources("SFX/Hurt", 0.7f);
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// 玩家受伤后进入短暂无敌（防止连续掉血）
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if (isPlayer && !_isDead)
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MakeInvincible(damageInvincibleDuration);
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// If dead
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if (health <= 0)
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{
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_isDead = true;
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if (isPlayer)
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{
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// 玩家死亡：通过 OnPlayerDied SO 事件通知 GameManager（解耦，不再直接调用单例）
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onPlayerDiedEvent?.Raise();
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}
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else
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{
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// 非玩家：正常播放死亡特效并销毁
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Die();
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}
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}
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}
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/// <summary>
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/// 进入无敌状态。
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/// duration <= 0 表示永久无敌（直到被外部取消）。
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/// duration > 0 表示限时无敌，到期后自动解除。
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/// </summary>
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public void MakeInvincible(float duration = 0f)
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{
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_isInvincible = true;
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if (duration <= 0f)
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{
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// 永久无敌
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_invincibleTimer = -1f;
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StopCoroutine(nameof(InvincibleCountdown));
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}
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else
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{
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// 限时无敌：刷新计时器
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_invincibleTimer = duration;
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StopCoroutine(nameof(InvincibleCountdown));
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StartCoroutine(InvincibleCountdown());
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}
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}
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/// <summary>限时无敌倒计时协程</summary>
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private IEnumerator InvincibleCountdown()
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{
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while (_invincibleTimer > 0f)
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{
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_invincibleTimer -= Time.deltaTime;
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yield return null;
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}
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_isInvincible = false;
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}
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// Handles death logic and effects
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public void Die()
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{
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Debug.Log($"[HealthSystem] Die() called on {gameObject.name}, dissolveMaterial={(dissolveMaterial != null ? dissolveMaterial.name : "NULL")}");
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if (deathEffect != null)
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Instantiate(deathEffect, transform.position + new Vector3(0f, .5f, 0f), Quaternion.identity);
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// 如果有溶解材质，播放消隐动画后再销毁
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if (dissolveMaterial != null)
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{
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Debug.Log($"[HealthSystem] Starting DissolveAndDestroy coroutine on {gameObject.name}");
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StartCoroutine(DissolveAndDestroy());
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}
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else
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{
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Debug.Log($"[HealthSystem] No dissolve material, destroying {gameObject.name} immediately");
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Destroy(gameObject);
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}
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}
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/// <summary>
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/// 溶解消隐协程：切换材质 → 禁用碰撞/AI → 动画溶解 → 销毁。
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/// </summary>
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private IEnumerator DissolveAndDestroy()
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{
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Debug.Log($"[HealthSystem] DissolveAndDestroy START on {gameObject.name}");
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// 禁用碰撞体和刚体，防止死亡过程中仍能触发碰撞或受重力下坠
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foreach (var col in GetComponents<Collider>())
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col.enabled = false;
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foreach (var col in GetComponents<Collider2D>())
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col.enabled = false;
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foreach (var rb in GetComponents<Rigidbody>())
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rb.isKinematic = true;
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foreach (var rb in GetComponents<Rigidbody2D>())
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rb.isKinematic = true;
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// 禁用所有 MonoBehaviour（AI、动画等），防止死亡后仍移动/攻击
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foreach (var mb in GetComponents<MonoBehaviour>())
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{
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if (mb != this)
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mb.enabled = false;
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}
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// 等一帧，确保禁用生效
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yield return null;
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// 切换所有 SpriteRenderer 到溶解材质（保留原始纹理和颜色）
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var renderers = GetComponentsInChildren<SpriteRenderer>();
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Debug.Log($"[HealthSystem] DissolveAndDestroy: {renderers.Length} SpriteRenderers on {gameObject.name}");
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for (int i = 0; i < renderers.Length; i++)
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{
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// 创建溶解材质实例，并复制原始纹理 + 颜色
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var dissolveMat = new Material(dissolveMaterial);
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if (renderers[i].sprite != null)
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dissolveMat.mainTexture = renderers[i].sprite.texture;
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dissolveMat.SetColor("_Color", renderers[i].color);
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dissolveMat.SetFloat("_DissolveAmount", 0f);
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renderers[i].material = dissolveMat;
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}
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// 再等一帧，确保材质切换生效
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yield return null;
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Debug.Log($"[HealthSystem] Starting dissolve animation, fadeDuration={fadeDuration}");
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// 动画溶解
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float elapsed = 0f;
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while (elapsed < fadeDuration)
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{
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elapsed += Time.deltaTime;
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float t = Mathf.Clamp01(elapsed / fadeDuration);
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for (int i = 0; i < renderers.Length; i++)
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{
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if (renderers[i] != null && renderers[i].material != null)
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renderers[i].material.SetFloat("_DissolveAmount", t);
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}
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yield return null;
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}
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Debug.Log($"[HealthSystem] Dissolve complete, destroying {gameObject.name}");
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Destroy(gameObject);
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}
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}
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}
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