건축 및 고용에 비용 소모 기능 추가

Assets/Scripts/WorkerSpawner.cs

@@ -11,6 +11,7 @@ namespace Northbound
         public float spawnRadius = 2f;
         public int maxWorkers = 5;
         public float spawnCooldown = 5f;
+        public int recruitmentCost = 20;
 
         [Header("Interaction")]
         public string interactionAnimationTrigger = "Build";
@@ -59,6 +60,10 @@ namespace Northbound
             if (workerPrefab == null)
                 return false;
 
+            var coreResourceManager = CoreResourceManager.Instance;
+            if (coreResourceManager != null && !coreResourceManager.CanAfford(recruitmentCost))
+                return false;
+
             return true;
         }
 
@@ -82,6 +87,21 @@ namespace Northbound
                 return;
             }
 
+            var coreResourceManager = CoreResourceManager.Instance;
+            if (coreResourceManager == null)
+            {
+                Debug.LogWarning("[WorkerSpawner] CoreResourceManager 인스턴스를 찾을 수 없습니다.");
+                return;
+            }
+
+            if (!coreResourceManager.CanAfford(recruitmentCost))
+            {
+                Debug.LogWarning($"[WorkerSpawner] 코어 자원이 부족합니다. 필요: {recruitmentCost}");
+                return;
+            }
+
+            coreResourceManager.SpendResources(recruitmentCost);
+
             Vector3 spawnPosition = spawnPoint != null ? spawnPoint.position : transform.position;
             
             float randomAngle = Random.Range(0f, 360f);
@@ -185,7 +205,11 @@ namespace Northbound
             if (cooldownRemaining > 0)
                 return $"워커 생성 대기 중 ({cooldownRemaining:F1}s)";
 
-            return $"{interactionPrompt} ({_workerCount.Value}/{maxWorkers})";
+            var coreResourceManager = CoreResourceManager.Instance;
+            if (coreResourceManager != null && !coreResourceManager.CanAfford(recruitmentCost))
+                return $"자원 부족 (필요: {recruitmentCost})";
+
+            return $"{interactionPrompt} ({_workerCount.Value}/{maxWorkers}) - 비용: {recruitmentCost}";
         }
 
         public string GetInteractionAnimation()