多轮审查和修复

Assets/Scripts/UI/HUD/BossHPBar.cs

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+using System.Collections;
+using UnityEngine;
+using UnityEngine.UI;
+using TMPro;
+using BaseGames.Core.Events;
+
+namespace BaseGames.UI
+{
+    /// <summary>
+    /// Boss 血条 UI（架构 10_UIModule §4）。
+    /// 默认隐藏，Boss 战开始时从屏幕底部滑入。
+    /// 阶段标记点由 BossHPMax 与 PhaseThreshold 共同决定（此处由外部广播 EVT_BossHPMaxSet 设置）。
+    /// </summary>
+    public class BossHPBar : MonoBehaviour
+    {
+        [SerializeField] private TMP_Text  _bossNameText;
+        [SerializeField] private Image        _hpFill;
+        [SerializeField] private Transform    _phaseMarkersRoot;
+        [SerializeField] private GameObject   _phaseMarkerPrefab;
+        [SerializeField] private float        _slideDistance = 120f;  // 滑入距离（像素）
+        [SerializeField] private float        _slideDuration = 0.3f;
+
+        [Header("Event Channels")]
+        [SerializeField] private BoolEventChannelSO   _onBossFightToggled;   // true=开始, false=结束
+        [SerializeField] private IntEventChannelSO    _onBossHPChanged;
+        [SerializeField] private StringEventChannelSO _onBossNameSet;
+        [SerializeField] private IntEventChannelSO    _onBossHPMaxSet;
+        [SerializeField] private FloatEventChannelSO  _onBossPhaseThreshold; // 每个阶段切换阈值（0-1）
+
+        private int _maxHP;
+        private RectTransform _rect;
+        private Vector2 _shownPos;
+        private Vector2 _hiddenPos;
+        private Coroutine _slideCoroutine;
+        private readonly CompositeDisposable _subs = new();
+
+        private void Awake()
+        {
+            _rect = (RectTransform)transform;
+            _shownPos  = _rect.anchoredPosition;
+            _hiddenPos = _shownPos - new Vector2(0, _slideDistance);
+            _rect.anchoredPosition = _hiddenPos;
+            gameObject.SetActive(false);
+        }
+
+        private void OnEnable()
+        {
+            _onBossFightToggled?.Subscribe(OnBossFightToggled).AddTo(_subs);
+            _onBossHPChanged?.Subscribe(OnHPChanged).AddTo(_subs);
+            _onBossNameSet?.Subscribe(OnNameSet).AddTo(_subs);
+            _onBossHPMaxSet?.Subscribe(OnMaxSet).AddTo(_subs);
+        }
+        private void OnDisable() => _subs.Clear();
+
+        // ── 事件回调 ──────────────────────────────────────────────────────────
+
+        private void OnBossFightToggled(bool started)
+        {
+            if (_slideCoroutine != null) StopCoroutine(_slideCoroutine);
+            if (started)
+            {
+                gameObject.SetActive(true);
+                _slideCoroutine = StartCoroutine(SlideTo(_shownPos));
+            }
+            else
+            {
+                _slideCoroutine = StartCoroutine(SlideOut());
+            }
+        }
+
+        private void OnHPChanged(int hp)
+        {
+            if (_maxHP > 0) _hpFill.fillAmount = (float)hp / _maxHP;
+        }
+
+        private void OnNameSet(string bossName)
+        {
+            if (_bossNameText != null) _bossNameText.text = bossName;
+        }
+
+        private void OnMaxSet(int max)
+        {
+            _maxHP = max;
+            // 重建阶段标记（每次 BossHPMax 改变时清空并按已存阈值重建，此处简化为清空）
+            if (_phaseMarkersRoot != null)
+                foreach (Transform t in _phaseMarkersRoot) Destroy(t.gameObject);
+        }
+
+        // ── 动画协程 ──────────────────────────────────────────────────────────
+
+        private IEnumerator SlideTo(Vector2 target)
+        {
+            Vector2 start = _rect.anchoredPosition;
+            float t = 0;
+            while (t < _slideDuration)
+            {
+                _rect.anchoredPosition = Vector2.Lerp(start, target, t / _slideDuration);
+                t += Time.unscaledDeltaTime;
+                yield return null;
+            }
+            _rect.anchoredPosition = target;
+        }
+
+        private IEnumerator SlideOut()
+        {
+            yield return SlideTo(_hiddenPos);
+            gameObject.SetActive(false);
+        }
+    }
+}