115 lines
4.3 KiB
C#
115 lines
4.3 KiB
C#
using System;
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using Cielonos.MainGame.Characters;
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using SLSUtilities.General;
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using UnityEngine;
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namespace Cielonos.MainGame.Inventory.Collections
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{
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/// <summary>
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/// “背水”协议 / Last Stand Protocol
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/// 当玩家生命值低于一定百分比（25%）时，增加造成的伤害（25%）但同时也增加受到的伤害（25%）。当生命值回升到阈值以上时，效果消失。
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/// </summary>
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public partial class LastStandProtocol : PassiveEquipmentBase
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{
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// 触发阈值（生命值百分比），从 passiveAttributeData 读取
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private float HealthThreshold => passiveAttributeData.itemAttributes.GetValueOrDefault("HealthThreshold", 0.25f);
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// Last Stand 激活时，FinalDamageDealtMultiplier 的叠加量
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private float DamageDealtBonus => passiveAttributeData.itemAttributes.GetValueOrDefault("DamageDealtBonus", 0.25f);
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// Last Stand 激活时，FinalDamageReceivedMultiplier 的叠加量（承受更多伤害）
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private float DamageReceivedAmplifier => passiveAttributeData.itemAttributes.GetValueOrDefault("DamageReceivedAmplifier", 0.25f);
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private bool _isActive;
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private bool IsInLastStand => GetHealthPercentage() < HealthThreshold;
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public override void OnObtained()
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{
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base.OnObtained();
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Action<float> onHealthChanged = OnHealthChanged;
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player.eventSm.onHealthChanged.Add("LastStandProtocol", onHealthChanged.ToPrioritized());
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// 装备获取时立即检查当前状态
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EvaluateState();
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}
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public override void OnDiscarded()
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{
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// 移除前先清理激活状态
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if (_isActive)
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{
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DeactivateLastStand();
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}
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player.eventSm.onHealthChanged.Remove("LastStandProtocol");
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base.OnDiscarded();
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}
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}
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public partial class LastStandProtocol
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{
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private void OnHealthChanged(float delta)
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{
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EvaluateState();
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}
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/// <summary>
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/// 根据当前生命值比例评估 Last Stand 状态，处理激活/关闭切换。
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/// </summary>
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private void EvaluateState()
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{
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bool shouldBeActive = IsInLastStand;
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if (shouldBeActive && !_isActive)
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{
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ActivateLastStand();
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}
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else if (!shouldBeActive && _isActive)
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{
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DeactivateLastStand();
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}
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}
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/// <summary>
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/// 激活 Last Stand：修改角色属性并刷新，显示提示文本。
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/// </summary>
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private void ActivateLastStand()
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{
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_isActive = true;
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passiveAttributeSm.chaAttrPercentageChangeOfAccumulation[CharacterAttribute.FinalDamageDealtMultiplier] = DamageDealtBonus;
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passiveAttributeSm.chaAttrPercentageChangeOfAccumulation[CharacterAttribute.FinalDamageReceivedMultiplier] = DamageReceivedAmplifier;
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player.attributeSm.RefreshAttribute(CharacterAttribute.FinalDamageDealtMultiplier);
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player.attributeSm.RefreshAttribute(CharacterAttribute.FinalDamageReceivedMultiplier);
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MainGameManager.BaseCollection.InfoText().Spawn(player.centerPosition, "Last Stand Protocol: On");
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}
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/// <summary>
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/// 关闭 Last Stand：还原角色属性修改并刷新，显示提示文本。
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/// </summary>
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private void DeactivateLastStand()
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{
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_isActive = false;
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passiveAttributeSm.chaAttrPercentageChangeOfAccumulation.Remove(CharacterAttribute.FinalDamageDealtMultiplier);
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passiveAttributeSm.chaAttrPercentageChangeOfAccumulation.Remove(CharacterAttribute.FinalDamageReceivedMultiplier);
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player.attributeSm.RefreshAttribute(CharacterAttribute.FinalDamageDealtMultiplier);
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player.attributeSm.RefreshAttribute(CharacterAttribute.FinalDamageReceivedMultiplier);
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MainGameManager.BaseCollection.InfoText().Spawn(player.centerPosition, "Last Stand Protocol: Off");
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}
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private float GetHealthPercentage()
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{
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float maxHealth = player.attributeSm[CharacterAttribute.MaximumHealth];
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if (maxHealth <= 0f) return 1f;
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return player.attributeSm[CharacterAttribute.Health] / maxHealth;
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}
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}
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}
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