84 lines
2.7 KiB
C#
84 lines
2.7 KiB
C#
using UnityEngine;
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using BaseGames.Core;
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using BaseGames.Core.Events;
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namespace BaseGames.Enemies
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{
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/// <summary>
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/// 敌人运行时数值组件（架构 07_EnemyModule §2）。
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/// 由 EnemyBase.Awake() 通过 Initialize(EnemyStatsSO) 注入配置。
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/// 同时订阅难度变更事件，支持游戏进行中切换难度（架构 19 §5）。
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/// </summary>
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public class EnemyStats : MonoBehaviour
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{
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private EnemyStatsSO _config;
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[SerializeField] private DifficultyChangedEventChannel _onDifficultyChanged;
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public int MaxHP { get; private set; }
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public int CurrentHP { get; private set; }
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public int Defense { get; private set; }
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public float AttackCooldownTimer { get; private set; }
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/// <summary>
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/// 每帧由 EnemyBase 更新（sqrMagnitude，避免 sqrt 开销）。
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/// 使用方请与 range*range 比较，而非直接与 range 比较。
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/// </summary>
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public float SqrDistanceToPlayer { get; set; }
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private readonly CompositeDisposable _subs = new();
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private void OnEnable()
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{
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_onDifficultyChanged?.Subscribe(HandleDifficultyChanged).AddTo(_subs);
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}
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private void OnDisable()
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{
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_subs.Clear();
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}
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public void Initialize(EnemyStatsSO so)
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{
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_config = so;
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Defense = so.Defense; // Defense 不随难度缩放（架构 19 §5）
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ApplyHPScaler();
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CurrentHP = MaxHP;
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}
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/// <summary>难度变更时重算 HP（保持 HP 比例，架构 19 §5）。</summary>
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private void HandleDifficultyChanged(DifficultyLevel _)
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{
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if (_config == null) return;
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float hpRatio = MaxHP > 0 ? (float)CurrentHP / MaxHP : 1f;
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ApplyHPScaler();
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CurrentHP = Mathf.Clamp(Mathf.RoundToInt(MaxHP * hpRatio), 1, MaxHP);
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}
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private void ApplyHPScaler()
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{
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if (_config == null) return;
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var scaler = ServiceLocator.GetOrDefault<IDifficultyService>()?.CurrentScaler;
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MaxHP = scaler != null
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? Mathf.Max(1, Mathf.RoundToInt(_config.MaxHP * scaler.EnemyHPMultiplier))
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: _config.MaxHP;
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}
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public void TakeDamage(int amount)
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{
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CurrentHP = Mathf.Max(0, CurrentHP - amount);
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}
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public void TickAttackCooldown(float dt)
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{
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if (AttackCooldownTimer > 0f)
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AttackCooldownTimer -= dt;
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}
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public void ResetAttackCooldown()
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{
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AttackCooldownTimer = _config.AttackCooldown;
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}
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}
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}
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