feat: 드로그 공통 보스 BT 프레임워크 정리

Assets/_Game/Scripts/AI/BehaviorActions/Actions/SelectNearestDownedTargetAction.cs

@@ -0,0 +1,93 @@
+using System;
+
+using Colosseum;
+using Colosseum.Combat;
+using Colosseum.Enemy;
+using Colosseum.Player;
+
+using Unity.Behavior;
+using Unity.Properties;
+using UnityEngine;
+
+using Action = Unity.Behavior.Action;
+
+/// <summary>
+/// 일정 반경 내에서 가장 가까운 다운 대상 플레이어를 선택하는 Behavior Action입니다.
+/// </summary>
+[Serializable, GeneratePropertyBag]
+[NodeDescription(
+    name: "Select Nearest Downed Target",
+    story: "[SearchRadius] 반경 내 가장 가까운 다운 대상을 [Target]으로 선택",
+    category: "Action",
+    id: "ee1146ad46ec4730acb4d6c883a5a771")]
+public partial class SelectNearestDownedTargetAction : Action
+{
+    [SerializeReference]
+    public BlackboardVariable<GameObject> Target;
+
+    [SerializeReference]
+    public BlackboardVariable<float> SearchRadius = new BlackboardVariable<float>(0f);
+
+    protected override Status OnStart()
+    {
+        float searchRadius = ResolveSearchRadius();
+        HitReactionController[] hitReactionControllers = UnityEngine.Object.FindObjectsByType<HitReactionController>(FindObjectsSortMode.None);
+
+        GameObject nearestTarget = null;
+        float nearestDistance = float.MaxValue;
+
+        for (int i = 0; i < hitReactionControllers.Length; i++)
+        {
+            HitReactionController controller = hitReactionControllers[i];
+            if (controller == null || !controller.IsDowned)
+                continue;
+
+            GameObject candidate = controller.gameObject;
+            if (candidate == null || !candidate.activeInHierarchy)
+                continue;
+
+            if (Team.IsSameTeam(GameObject, candidate))
+                continue;
+
+            IDamageable damageable = candidate.GetComponent<IDamageable>();
+            if (damageable != null && damageable.IsDead)
+                continue;
+
+            float distance = Vector3.Distance(GameObject.transform.position, candidate.transform.position);
+            if (distance > searchRadius || distance >= nearestDistance)
+                continue;
+
+            nearestDistance = distance;
+            nearestTarget = candidate;
+        }
+
+        if (nearestTarget == null)
+            return Status.Failure;
+
+        Target.Value = nearestTarget;
+        LogDebug($"다운 대상 선택: {nearestTarget.name}");
+        return Status.Success;
+    }
+
+    private float ResolveSearchRadius()
+    {
+        if (SearchRadius.Value > 0f)
+            return SearchRadius.Value;
+
+        BossCombatBehaviorContext context = GameObject.GetComponent<BossCombatBehaviorContext>();
+        if (context != null)
+            return context.PunishSearchRadius;
+
+        EnemyBase enemyBase = GameObject.GetComponent<EnemyBase>();
+        if (enemyBase != null && enemyBase.Data != null)
+            return enemyBase.Data.AttackRange + 4f;
+
+        return 6f;
+    }
+
+    private void LogDebug(string message)
+    {
+        BossCombatBehaviorContext context = GameObject.GetComponent<BossCombatBehaviorContext>();
+        context?.LogDebug(nameof(SelectNearestDownedTargetAction), message);
+    }
+}