推进计时器逻辑的集中管理

- 将敌人的攻击计时任务放到基类中进行创建
- 将 EnemySpawnScheduler 敌人生成调度器的刷怪计时任务迁移到 TimerComponent

Assets/GameMain/Scripts/Runtime/Entity/EntityLogic/Enemy/EnemyBase.cs

@@ -2,6 +2,7 @@
 using SepCore.AsyncTask;
 using SepCore.Definition;
 using SepCore.Entity;
+using SepCore.Timer;
 using UnityEngine;
 
 public abstract class EnemyBase : TargetableObject
@@ -15,6 +16,29 @@ public abstract class EnemyBase : TargetableObject
 
     protected EnemyData _enemyData;
 
+    protected bool _canAttack;
+    protected TimerHandle _attackTimerHandle;
+
+    protected void StartAttackCooldown(float cooldown)
+    {
+        _canAttack = false;
+        _attackTimerHandle = GameEntry.Timer.ScheduleOnce(cooldown, () => _canAttack = true, this);
+    }
+
+    protected void ResetAttackCooldown(float cooldown)
+    {
+        GameEntry.Timer.Cancel(_attackTimerHandle);
+        _canAttack = false;
+        _attackTimerHandle = GameEntry.Timer.ScheduleOnce(cooldown, () => _canAttack = true, this);
+    }
+
+    protected void CancelAttackCooldown()
+    {
+        GameEntry.Timer.Cancel(_attackTimerHandle);
+        _attackTimerHandle = TimerHandle.Invalid;
+        _canAttack = false;
+    }
+
     protected override void OnShow(object userData)
     {
         base.OnShow(userData);