摄像机区域的架构改动

Assets/_Game/Scripts/UI/FloatingDamageText.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using TMPro;
+using BaseGames.Core.Events;
+using BaseGames.Combat;
+
+namespace BaseGames.UI
+{
+    /// <summary>
+    /// 伤害飘字（架构 10_UIModule §10）。
+    /// 从对象池取出后由 FloatingDamageSpawner 调用 Show()；协程完成后归还。
+    /// 挂在预制体根 GameObject 上（Canvas_HUD 子节点，World Space Canvas 或 Screen Space）。
+    /// </summary>
+    public class FloatingDamageText : MonoBehaviour
+    {
+        [SerializeField] private TMP_Text  _text;
+        [SerializeField] private float     _floatDistance = 1.5f;
+        [SerializeField] private float     _duration      = 0.8f;
+
+        /// <summary>
+        /// 父级 Canvas（用于 RectTransformUtility 坐标转换）。
+        /// 适配所有 Canvas 渲染模式（Overlay / Camera / World Space），
+        /// Screen Space - Overlay 时可传 null（会自动 fallback 到 null camera）。
+        /// </summary>
+        [SerializeField] private Canvas _parentCanvas;
+
+        private RectTransform _rectTransform;
+        private Coroutine _animCoroutine;
+
+        private void Awake()
+        {
+            _rectTransform = (RectTransform)transform;
+            // 不在 Awake 缓存 Camera.main，避免 Boss 过场切换主摄像机后引用过期
+        }
+
+        /// <summary>
+        /// 在世界坐标位置显示伤害数字并开始飘动动画。
+        /// 动画结束后由对象池回收（Deactivate）。
+        /// </summary>
+        public void Show(Vector2 worldPosition, int damage, DamageType type)
+        {
+            if (_animCoroutine != null) StopCoroutine(_animCoroutine);
+
+            _text.text  = damage.ToString();
+            _text.color = GetColorForType(type);
+
+            SetAnchoredPosition(worldPosition);
+            _animCoroutine = StartCoroutine(FloatAndFade(worldPosition));
+        }
+
+        private void SetAnchoredPosition(Vector2 worldPosition)
+        {
+            var cam = (_parentCanvas != null && _parentCanvas.renderMode == RenderMode.ScreenSpaceCamera)
+                ? _parentCanvas.worldCamera
+                : UnityEngine.Camera.main;
+
+            var screenPoint = cam != null
+                ? (Vector2)cam.WorldToScreenPoint(worldPosition)
+                : Vector2.zero;
+
+            var canvasRect = _parentCanvas != null
+                ? (RectTransform)_parentCanvas.transform
+                : null;
+
+            if (canvasRect != null)
+            {
+                RectTransformUtility.ScreenPointToLocalPointInRectangle(
+                    canvasRect, screenPoint, cam, out var localPoint);
+                _rectTransform.anchoredPosition = localPoint;
+            }
+            else
+            {
+                _rectTransform.anchoredPosition = screenPoint;
+            }
+        }
+
+        private IEnumerator FloatAndFade(Vector2 startWorld)
+        {
+            float elapsed  = 0f;
+            var color      = _text.color;
+            var startAlpha = color.a;
+
+            while (elapsed < _duration)
+            {
+                float t = elapsed / _duration;
+
+                SetAnchoredPosition(startWorld + new Vector2(0, _floatDistance * t));
+
+                // alpha 淡出（后半段开始）
+                _text.color = new Color(color.r, color.g, color.b,
+                    Mathf.Lerp(startAlpha, 0f, Mathf.Clamp01((t - 0.5f) / 0.5f)));
+
+                elapsed += Time.deltaTime;
+                yield return null;
+            }
+
+            gameObject.SetActive(false); // 归还对象池
+        }
+
+        private static Color GetColorForType(DamageType type) => type switch
+        {
+            DamageType.Fire    => new Color(1f,  0.5f, 0f),   // 橙
+            DamageType.Poison  => new Color(0.3f,0.9f, 0.3f), // 绿
+            DamageType.True    => new Color(1f,  0.95f,0.4f), // 黄
+            DamageType.Ice     => new Color(0.5f,0.85f,1f),   // 冰蓝
+            DamageType.Lightning=>new Color(0.9f,0.9f, 0.2f), // 闪黄
+            _                  => Color.white
+        };
+    }
+
+    // ─────────────────────────────────────────────────────────────────────────
+    /// <summary>
+    /// 伤害飘字生成器（挂在 Canvas_HUD 上）。
+    /// 订阅 EVT_DamageDealt 事件频道，从 Addressables 池取出 FloatingDamageText 显示。
+    /// </summary>
+    public class FloatingDamageSpawner : MonoBehaviour
+    {
+        [Header("事件频道")]
+        [SerializeField] private DamageInfoEventChannelSO _onDamageDealt;
+
+        [Header("预制体（对象池 key = AddressKeys.PrefabUIFloatingDmgText）")]
+        [SerializeField] private GameObject _floatingDmgPrefab;  // Fallback：Inspector 直接拖入
+
+        private readonly Queue<FloatingDamageText> _pool = new();
+        private readonly CompositeDisposable _subs = new();
+
+        private void OnEnable()  => _onDamageDealt?.Subscribe(OnDamageDealt).AddTo(_subs);
+        private void OnDisable() => _subs.Clear();
+
+        private void OnDamageDealt(DamageInfo info)
+        {
+            if (info.FinalDamage <= 0) return;
+            var text = GetOrCreate();
+            if (text != null)
+                text.Show(info.SourcePosition, info.FinalDamage, info.Type);
+        }
+
+        private FloatingDamageText GetOrCreate()
+        {
+            // 从池中找到已停用的实例
+            while (_pool.Count > 0)
+            {
+                var pooled = _pool.Dequeue();
+                if (pooled == null) continue;
+                if (!pooled.gameObject.activeSelf)
+                {
+                    pooled.gameObject.SetActive(true);
+                    return pooled;
+                }
+                _pool.Enqueue(pooled); // 仍在使用，放回
+                break;
+            }
+
+            // 没有可用实例则实例化
+            if (_floatingDmgPrefab == null) return null;
+            var go = Instantiate(_floatingDmgPrefab, transform);
+            var comp = go.GetComponent<FloatingDamageText>();
+            if (comp != null) _pool.Enqueue(comp);
+            return comp;
+        }
+    }
+}