Cielonos/Assets/Scripts/MainGame/Items/PassiveEquipments/OverloadBattery.cs

using System;
using Cielonos.MainGame.Characters;
using SLSUtilities.General;
using UnityEngine;

namespace Cielonos.MainGame.Inventory.Collections
{
    /// <summary>
    /// 过载电池 / Overload Battery
    /// 过载完成时，下一次【突破等级：重】攻击造成的伤害增加 50%。
    /// </summary>
    public class OverloadBattery : PassiveEquipmentBase
    {
        private bool _isBuffActive = false;

        public override void OnObtained()
        {
            // 直接订阅由 OverloadSubmodule 抛出的满溢满充爆气事件
            if (overloadSm != null)
            {
                overloadSm.OnTriggered += TriggerOverloadEffect;
            }
        }

        public void TriggerOverloadEffect()
        {
            // 挂载增伤 Buff
            _isBuffActive = true;
            
            // 为下一次攻击进行截流修饰（利用上一个阶段优化提升完毕的 EventSubmodule 架构）
            Action<AttackAreaBase, CharacterBase, Attack.Context> onStartAttack = OnStartAttack;
            
            if (!player.eventSm.onStartAttack.ContainsKey("OverloadBattery"))
            {
                player.eventSm.onStartAttack.Add("OverloadBattery", onStartAttack.ToPrioritized());
                MainGameManager.BaseCollection.InfoText().Spawn(player.CenterPosition, "Overload Battery Boost").SetScale(0.5f);
            }
        }

        private void OnStartAttack(AttackAreaBase attackArea, CharacterBase target, Attack.Context attackContext)
        {
            if (!_isBuffActive) return;

            // 拦截检查：必须是重突破等级（BreakthroughType.Heavy）
            // 如果不是重攻击，我们就避让不进行任何修饰，且不消耗掉 Buff 的开启状态
            if (attackContext.value.breakthroughType != Breakthrough.Type.Heavy) return;

            // 最终伤害提升 50%。上个方案中我们留下了 damageMultiplier，天然完美支持翻倍操作。
            attackContext.value.damageMultiplier += 0.5f; 
            _isBuffActive = false;
            // "一次性"触发，修饰完毕后从玩家的攻击起手事件池里销毁自身，不沾染下一次无关的攻击。
            player.eventSm.onStartAttack.Remove("OverloadBattery");
        }

        public override void OnDiscarded()
        {
            base.OnDiscarded();
            
            player.eventSm.onStartAttack.Remove("OverloadBattery");
            
            if (overloadSm != null)
            {
                overloadSm.OnTriggered -= TriggerOverloadEffect;
            }
        }
    }
}