Refactor code structure for improved readability and maintainability

Assets/_Game/Scripts/Enemies/Boss/ChaoFengKnockdownCounter.cs

@@ -0,0 +1,78 @@
+using System.Collections;
+using Animancer;
+using BaseGames.Boss;
+using BaseGames.Combat;
+using UnityEngine;
+
+namespace BaseGames.Enemies.Boss
+{
+    /// <summary>
+    /// 嘲风击落计数器（Phase 2）。
+    /// 由 <see cref="ChaoFengBoss.OnDamageTaken"/> 直接调用 <see cref="OnBossHit"/>，
+    /// 累计命中达到阈值后触发击落序列（下落 → 硬直 → 复位浮空）。
+    ///
+    /// ⚠️ HurtBox 无公开 OnDamageTaken 事件，必须通过 EnemyBase.OnDamageTaken 虚方法转发。
+    /// </summary>
+    public class ChaoFengKnockdownCounter : MonoBehaviour
+    {
+        [SerializeField] private int   _threshold = 8;
+
+        [Header("依赖引用")]
+        [SerializeField] private ChaoFengBoss            _boss;
+        [SerializeField] private ChaoFengFloatController _floatCtrl;
+
+        [Header("击落动画")]
+        [SerializeField] private ClipTransition _knockdownHitClip;
+        [Tooltip("击落后硬直动画（复用 Defeat_Pant Clip）")]
+        [SerializeField] private ClipTransition _staggerClip;
+
+        [SerializeField] private float _staggerDuration = 3f;
+
+        private int  _count;
+        private bool _inKnockdown;
+
+        /// <summary>
+        /// 由 <see cref="ChaoFengBoss.OnDamageTaken"/> 调用，累计受击并在达到阈值时触发击落。
+        /// </summary>
+        public void OnBossHit(DamageInfo info)
+        {
+            if (_inKnockdown || _boss == null || _boss.CurrentPhase != 1) return;
+
+            _count++;
+            if (_count >= _threshold)
+            {
+                _count = 0;
+                StartCoroutine(KnockdownSequence());
+            }
+        }
+
+        /// <summary>强制结束正在进行中的击落序列（由 ChaoFengBoss.DefeatSequence 调用）。</summary>
+        public void ForceEnd()
+        {
+            StopAllCoroutines();
+            _inKnockdown = false;
+            _count       = 0;
+        }
+
+        private IEnumerator KnockdownSequence()
+        {
+            _inKnockdown = true;
+
+            _boss.GetComponentInChildren<BossSkillExecutor>()?.InterruptCurrentSkill();
+
+            if (_knockdownHitClip.Clip != null)
+                _boss.Animancer.Play(_knockdownHitClip);
+
+            yield return _floatCtrl.FallDown();
+
+            if (_staggerClip.Clip != null)
+                _boss.Animancer.Play(_staggerClip);
+
+            yield return new WaitForSeconds(_staggerDuration);
+
+            yield return _floatCtrl.FloatUp();
+
+            _inKnockdown = false;
+        }
+    }
+}