feat(enemy): EnemyAbilityBase 实现 IAttackCandidate 契约(自管圆形射程)

Assets/_Game/Scripts/Enemies/Abilities/EnemyAbilityBase.cs

@@ -16,7 +16,7 @@ namespace BaseGames.Enemies.Abilities
     /// - 受击/死亡时由 <see cref="EnemyBase"/> 调用 <see cref="Interrupt"/>。
     /// </summary>
     [DisallowMultipleComponent]
-    public abstract class EnemyAbilityBase : MonoBehaviour
+    public abstract class EnemyAbilityBase : MonoBehaviour, IAttackCandidate
     {
         [Header("配置 SO")]
         [SerializeField] protected EnemyAbilitySO _config;
@@ -43,6 +43,24 @@ namespace BaseGames.Enemies.Abilities
         /// <summary>BD 任务统一查询入口：当前是否可用（冷却完毕且未执行中）。</summary>
         public virtual bool CanUse => !_isRunning && !IsOnCooldown && _enemy != null && _enemy.IsAlive;
 
+        // ── IAttackCandidate（供 EnemyAttackSelector 选招）──────────────────
+        public bool  RequiresLineOfSight => _config != null && _config.requiresLineOfSight;
+        public bool  RequiresGrounded    => _config != null && _config.requiresGrounded;
+        public float Weight              => _config != null ? _config.weight : 0f;
+        public int   Priority            => _config != null ? _config.priority : 0;
+
+        /// <summary>本招圆形攻击范围内是否有玩家（招式自管其射程；LOS 复用敌人级 IsPlayerVisible）。</summary>
+        public virtual bool InAttackRange()
+        {
+            if (_config == null || _config.rangeRadius <= 0f
+                || _enemy == null || _enemy.PlayerTransform == null) return false;
+            float   sign   = _transform.localScale.x < 0f ? -1f : 1f;
+            Vector2 origin = (Vector2)_transform.position
+                           + new Vector2(_config.rangeOffset.x * sign, _config.rangeOffset.y);
+            float r = _config.rangeRadius;
+            return ((Vector2)_enemy.PlayerTransform.position - origin).sqrMagnitude <= r * r;
+        }
+
         protected virtual void Awake()
         {
             _enemy     = GetComponentInParent<EnemyBase>();

Assets/_Game/Scripts/Enemies/Abilities/IAttackCandidate.cs

@@ -0,0 +1,17 @@
+namespace BaseGames.Enemies.Abilities
+{
+    /// <summary>
+    /// 攻击选择器的候选契约。攻击类 <see cref="EnemyAbilityBase"/> 实现之；
+    /// 抽象出来使 <see cref="EnemyAttackSelector"/> 可脱离 MonoBehaviour 单测。
+    /// </summary>
+    public interface IAttackCandidate
+    {
+        bool  CanUse { get; }              // 未冷却 + 未运行 + 存活
+        bool  RequiresLineOfSight { get; } // 是否需要视线（由敌人级 LOS 提供）
+        bool  RequiresGrounded { get; }    // 是否需要着地
+        float Weight { get; }              // WeightedRandom 权重
+        int   Priority { get; }            // Priority 优先级
+        bool  InAttackRange();             // 招式自管圆形射程内是否有玩家
+        bool  Execute();                   // 触发本招
+    }
+}