건설 토대 및 상호작용 시스템 추가

Assembly-CSharp.csproj

@@ -71,6 +71,7 @@
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     <Compile Include="Assets\Scripts\AutoTargetSystem.cs" />
     <Compile Include="Assets\FlatKit\[Render Pipeline] URP\Water\Scripts\Buoyancy.cs" />
+    <Compile Include="Assets\Scripts\BuildingFoundation.cs" />
     <Compile Include="Assets\Scripts\AttackAction.cs" />
     <Compile Include="Assets\Scripts\IInteractable.cs" />
     <Compile Include="Assets\FlatKit\Demos\Common\Scripts\UvScroller.cs" />

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Assets/Scripts/BuildingData.cs

@@ -23,6 +23,18 @@ namespace Northbound
         [Tooltip("Can rotate this building?")]
         public bool allowRotation = true;
 
+        [Header("Construction Settings")]
+        [Tooltip("건설 완료에 필요한 총 작업량")]
+        public float requiredWorkAmount = 100f;
+        [Tooltip("1회 상호작용당 작업량")]
+        public float workPerInteraction = 10f;
+        [Tooltip("상호작용 쿨다운 (초)")]
+        public float interactionCooldown = 1f;
+        [Tooltip("건설 시 플레이어가 재생할 애니메이션 트리거 (예: Build, Hammer, Construct)")]
+        public string constructionAnimationTrigger = "Build";
+        [Tooltip("건설 시 사용할 도구 (선택사항)")]
+        public InteractionEquipmentData constructionEquipment;
+
         [Header("Health Settings")]
         [Tooltip("Maximum health of the building")]
         public int maxHealth = 100;

Assets/Scripts/BuildingFoundation.cs

@@ -0,0 +1,353 @@
+using System;
+using Unity.Netcode;
+using UnityEngine;
+
+namespace Northbound
+{
+    /// <summary>
+    /// 건물 토대 - 플레이어가 상호작용하여 건물을 완성시킴
+    /// </summary>
+    public class BuildingFoundation : NetworkBehaviour, IInteractable, ITeamMember
+    {
+        [Header("Building Info")]
+        public BuildingData buildingData;
+        public Vector3Int gridPosition;
+        public int rotation;
+
+        [Header("Visual")]
+        public GameObject foundationVisual;
+        public GameObject progressBarPrefab;
+
+        // 현재 건설 진행도
+        private NetworkVariable<float> _currentProgress = new NetworkVariable<float>(
+            0f,
+            NetworkVariableReadPermission.Everyone,
+            NetworkVariableWritePermission.Server
+        );
+
+        // 건물 소유자
+        private NetworkVariable<ulong> _ownerId = new NetworkVariable<ulong>(
+            0,
+            NetworkVariableReadPermission.Everyone,
+            NetworkVariableWritePermission.Server
+        );
+
+        // 팀
+        private NetworkVariable<TeamType> _team = new NetworkVariable<TeamType>(
+            TeamType.Neutral,
+            NetworkVariableReadPermission.Everyone,
+            NetworkVariableWritePermission.Server
+        );
+
+        // 이벤트
+        public event Action<float, float> OnProgressChanged; // (current, max)
+        public event Action OnConstructionComplete;
+
+        private GameObject _progressBarInstance;
+        private float _lastInteractionTime;
+        private BoxCollider _collider;
+
+        public ulong OwnerId => _ownerId.Value;
+
+        public override void OnNetworkSpawn()
+        {
+            base.OnNetworkSpawn();
+
+            _currentProgress.OnValueChanged += OnProgressValueChanged;
+
+            // 진행 UI 생성
+            if (progressBarPrefab != null)
+            {
+                _progressBarInstance = Instantiate(progressBarPrefab, transform);
+                UpdateProgressBar();
+            }
+        }
+
+        public override void OnNetworkDespawn()
+        {
+            _currentProgress.OnValueChanged -= OnProgressValueChanged;
+
+            base.OnNetworkDespawn();
+        }
+
+        /// <summary>
+        /// 토대 초기화
+        /// </summary>
+        public void Initialize(BuildingData data, Vector3Int pos, int rot, ulong ownerId, TeamType team)
+        {
+            if (!IsServer) return;
+
+            buildingData = data;
+            gridPosition = pos;
+            rotation = rot;
+            _ownerId.Value = ownerId;
+            _team.Value = team;
+            _currentProgress.Value = 0f;
+
+            // BuildingData의 크기를 기반으로 스케일 설정
+            Vector3 size = data.GetSize(rot);
+            
+            // foundationVisual의 스케일만 조정 (토대 자체의 pivot은 중앙에 유지)
+            if (foundationVisual != null)
+            {
+                // 토대 비주얼을 건물 크기에 맞게 조정 (높이는 얇게)
+                foundationVisual.transform.localScale = new Vector3(size.x, 0.2f, size.z);
+                foundationVisual.transform.localPosition = new Vector3(0, 0.1f, 0); // 바닥에서 약간 위
+            }
+
+            // BoxCollider 추가 및 크기 설정 (상호작용용)
+            _collider = GetComponent<BoxCollider>();
+            if (_collider == null)
+            {
+                _collider = gameObject.AddComponent<BoxCollider>();
+            }
+
+            // 상호작용 가능한 크기로 설정 (전체 건물 높이가 아닌 접근 가능한 크기)
+            _collider.size = new Vector3(size.x, 2f, size.z); // 높이를 2m로 설정하여 상호작용 가능
+            _collider.center = new Vector3(0, 1f, 0); // 중심을 1m 높이에 배치
+            _collider.isTrigger = false; // Trigger가 아닌 일반 Collider로 설정
+
+            Debug.Log($"<color=yellow>[BuildingFoundation] 토대 생성: {data.buildingName}, 크기: {size}, 위치: {transform.position}, Collider: {_collider.size}, 소유자: {ownerId}, 팀: {team}</color>");
+        }
+
+        /// <summary>
+        /// 토대의 그리드 경계 가져오기 (BuildingManager의 충돌 체크용)
+        /// </summary>
+        public Bounds GetGridBounds()
+        {
+            if (buildingData == null)
+                return new Bounds(transform.position, Vector3.one);
+
+            Vector3 size = buildingData.GetSize(rotation);
+            // 토대의 위치를 중심으로 건물이 차지할 공간 반환
+            return new Bounds(transform.position + Vector3.up * size.y * 0.5f, size);
+        }
+
+        #region IInteractable Implementation
+
+        public bool CanInteract(ulong playerId)
+        {
+            if (buildingData == null)
+            {
+                Debug.LogWarning($"[BuildingFoundation] buildingData is null");
+                return false;
+            }
+
+            // 쿨다운 체크
+            if (Time.time - _lastInteractionTime < buildingData.interactionCooldown)
+            {
+                Debug.Log($"[BuildingFoundation] Cooldown active: {Time.time - _lastInteractionTime}/{buildingData.interactionCooldown}");
+                return false;
+            }
+
+            // 이미 완성됨
+            if (_currentProgress.Value >= buildingData.requiredWorkAmount)
+            {
+                Debug.Log($"[BuildingFoundation] Already completed");
+                return false;
+            }
+    
+            // 같은 팀만 건설 가능 - 플레이어의 팀을 가져와서 비교
+            TeamType playerTeam = GetPlayerTeam(playerId);
+            if (playerTeam != _team.Value)
+            {
+                Debug.LogWarning($"[BuildingFoundation] Wrong team: player={playerTeam}, foundation={_team.Value}");
+                return false;
+            }
+
+            Debug.Log($"<color=green>[BuildingFoundation] CanInteract = true</color>");
+            return true;
+        }
+
+        public void Interact(ulong playerId)
+        {
+            if (!IsServer || buildingData == null) return;
+
+            if (!CanInteract(playerId))
+                return;
+
+            _lastInteractionTime = Time.time;
+
+            // 건설 진행
+            _currentProgress.Value += buildingData.workPerInteraction;
+
+            Debug.Log($"<color=green>[BuildingFoundation] 건설 진행: {_currentProgress.Value}/{buildingData.requiredWorkAmount} ({(_currentProgress.Value / buildingData.requiredWorkAmount * 100f):F1}%)</color>");
+
+            // 완성 체크
+            if (_currentProgress.Value >= buildingData.requiredWorkAmount)
+            {
+                CompleteConstruction();
+            }
+        }
+
+        public string GetInteractionPrompt()
+        {
+            if (buildingData == null)
+                return "[E] 건설하기";
+
+            float percentage = (_currentProgress.Value / buildingData.requiredWorkAmount) * 100f;
+            return $"[E] 건설하기 ({percentage:F0}%)";
+        }
+
+        public string GetInteractionAnimation()
+        {
+            // BuildingData에서 애니메이션 트리거 가져오기
+            if (buildingData != null && !string.IsNullOrEmpty(buildingData.constructionAnimationTrigger))
+            {
+                return buildingData.constructionAnimationTrigger;
+            }
+            
+            // 기본값: 빈 문자열 (애니메이션 없음)
+            return "";
+        }
+
+        public InteractionEquipmentData GetEquipmentData()
+        {
+            // BuildingData에 건설 도구가 정의되어 있으면 반환
+            if (buildingData != null && buildingData.constructionEquipment != null)
+            {
+                return buildingData.constructionEquipment;
+            }
+            
+            return null; // 특별한 도구 불필요
+        }
+
+        public Transform GetTransform()
+        {
+            return transform;
+        }
+
+        #endregion
+
+        #region ITeamMember Implementation
+
+        public TeamType GetTeam()
+        {
+            return _team.Value;
+        }
+
+        public void SetTeam(TeamType team)
+        {
+            if (!IsServer) return;
+            _team.Value = team;
+        }
+
+        #endregion
+
+        /// <summary>
+        /// 플레이어의 팀 가져오기
+        /// </summary>
+        private TeamType GetPlayerTeam(ulong playerId)
+        {
+            // 플레이어의 NetworkObject 찾기
+            if (NetworkManager.Singleton != null && NetworkManager.Singleton.SpawnManager != null)
+            {
+                if (NetworkManager.Singleton.SpawnManager.SpawnedObjects.TryGetValue(playerId, out NetworkObject playerNetObj))
+                {
+                    var teamMember = playerNetObj.GetComponent<ITeamMember>();
+                    if (teamMember != null)
+                    {
+                        return teamMember.GetTeam();
+                    }
+                }
+            }
+
+            // 기본값: 플레이어 팀
+            return TeamType.Player;
+        }
+
+        private void CompleteConstruction()
+        {
+            if (!IsServer) return;
+
+            Debug.Log($"<color=cyan>[BuildingFoundation] 건물 완성! {buildingData.buildingName}</color>");
+
+            OnConstructionComplete?.Invoke();
+
+            // BuildingManager에서 토대 제거
+            var buildingManager = BuildingManager.Instance;
+            if (buildingManager != null)
+            {
+                buildingManager.RemoveFoundation(this);
+            }
+
+            // 완성된 건물 생성
+            SpawnCompletedBuilding();
+
+            // 토대 제거
+            if (NetworkObject != null)
+            {
+                NetworkObject.Despawn(true);
+            }
+        }
+
+        private void SpawnCompletedBuilding()
+        {
+            if (!IsServer || buildingData == null || buildingData.prefab == null)
+                return;
+
+            // BuildingManager를 통해 건물 생성
+            var buildingManager = BuildingManager.Instance;
+            if (buildingManager != null)
+            {
+                buildingManager.SpawnCompletedBuildingServerRpc(
+                    buildingData.name, 
+                    gridPosition, 
+                    rotation, 
+                    _ownerId.Value, 
+                    _team.Value
+                );
+            }
+            else
+            {
+                Debug.LogError("[BuildingFoundation] BuildingManager를 찾을 수 없습니다!");
+            }
+        }
+
+        private void OnProgressValueChanged(float oldValue, float newValue)
+        {
+            if (buildingData != null)
+            {
+                OnProgressChanged?.Invoke(newValue, buildingData.requiredWorkAmount);
+            }
+            UpdateProgressBar();
+        }
+
+        private void UpdateProgressBar()
+        {
+            if (_progressBarInstance == null || buildingData == null) return;
+
+            // 진행바 UI 업데이트 (BuildingHealthBar와 유사한 구조 사용 가능)
+            var progressBar = _progressBarInstance.GetComponent<BuildingHealthBar>();
+            if (progressBar != null)
+            {
+                // BuildingHealthBar를 재사용하여 진행도 표시
+                progressBar.UpdateHealth((int)_currentProgress.Value, (int)buildingData.requiredWorkAmount);
+            }
+        }
+
+        private void OnDrawGizmos()
+        {
+            if (buildingData == null) return;
+
+            // 건물 경계 표시 (노란색)
+            Gizmos.color = Color.yellow;
+            Vector3 size = buildingData.GetSize(rotation);
+            Gizmos.DrawWireCube(transform.position + Vector3.up * size.y * 0.5f, size);
+
+            // Collider 경계 표시 (초록색)
+            if (_collider != null)
+            {
+                Gizmos.color = Color.green;
+                Gizmos.DrawWireCube(transform.position + _collider.center, _collider.size);
+            }
+
+            // 상호작용 가능 여부 표시
+            if (_currentProgress.Value < (buildingData?.requiredWorkAmount ?? 100f))
+            {
+                Gizmos.color = Color.cyan;
+                Gizmos.DrawSphere(transform.position + Vector3.up, 0.3f);
+            }
+        }
+    }
+}

Assets/Scripts/BuildingFoundation.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: cad87caf8c43a4b41911ae978c10ae0e

Assets/Scripts/BuildingManager.cs

@@ -15,7 +15,11 @@ namespace Northbound
         [Header("Building Database")]
         public List<BuildingData> availableBuildings = new List<BuildingData>();
 
+        [Header("Foundation Settings")]
+        public GameObject foundationPrefab; // 토대 프리팹 (Inspector에서 할당)
+
         private List<Building> placedBuildings = new List<Building>();
+        private List<BuildingFoundation> placedFoundations = new List<BuildingFoundation>();
 
         private void Awake()
         {
@@ -70,11 +74,18 @@ namespace Northbound
             // Overlap check using GRID SIZE from BuildingData (not actual colliders)
             Vector3 gridSize = data.GetSize(rotation);
 
+            // 프리팹의 실제 배치 위치 계산 (placementOffset 포함)
+            Vector3 actualBuildingPosition = snappedPosition + data.placementOffset;
+
+            // Bounds의 중심을 실제 건물/토대 위치를 기준으로 계산
+            Vector3 boundsCenter = actualBuildingPosition + Vector3.up * gridSize.y * 0.5f;
+
             // Shrink bounds slightly to allow buildings to touch without overlapping
             // This prevents Bounds.Intersects() from returning true for adjacent buildings
             Vector3 shrunkSize = gridSize - Vector3.one * 0.01f;
-            Bounds checkBounds = new Bounds(snappedPosition + Vector3.up * gridSize.y * 0.5f, shrunkSize);
+            Bounds checkBounds = new Bounds(boundsCenter, shrunkSize);
 
+            // 기존 건물과의 충돌 체크
             foreach (var building in placedBuildings)
             {
                 if (building == null) continue;
@@ -86,6 +97,17 @@ namespace Northbound
                     return false;
             }
 
+            // 토대와의 충돌 체크
+            foreach (var foundation in placedFoundations)
+            {
+                if (foundation == null) continue;
+
+                Bounds foundationGridBounds = foundation.GetGridBounds();
+
+                if (checkBounds.Intersects(foundationGridBounds))
+                    return false;
+            }
+
             return true;
         }
 
@@ -96,6 +118,7 @@ namespace Northbound
         public Bounds GetPlacementBounds(BuildingData data, Vector3 position, int rotation)
         {
             Vector3 gridSize = data.GetSize(rotation);
+            // position은 이미 placementOffset이 적용된 위치
             return new Bounds(position + Vector3.up * gridSize.y * 0.5f, gridSize);
         }
 
@@ -200,6 +223,18 @@ namespace Northbound
             }
         }
 
+        /// <summary>
+        /// 토대 제거 (건설 완료 또는 취소 시)
+        /// </summary>
+        public void RemoveFoundation(BuildingFoundation foundation)
+        {
+            if (placedFoundations.Contains(foundation))
+            {
+                placedFoundations.Remove(foundation);
+                Debug.Log($"<color=yellow>[BuildingManager] 토대 제거됨: {foundation.buildingData?.buildingName ?? "Unknown"}</color>");
+            }
+        }
+
         /// <summary>
         /// 사전 배치 건물 등록 (씬에 미리 있는 건물용)
         /// </summary>
@@ -244,5 +279,158 @@ namespace Northbound
             
             return ownedBuildings;
         }
+
+        /// <summary>
+        /// 건물 토대 배치 요청 (클라이언트에서 호출)
+        /// </summary>
+        public void RequestPlaceFoundation(int buildingIndex, Vector3 position, int rotation)
+        {
+            if (!NetworkManager.Singleton.IsClient)
+            {
+                Debug.LogWarning("[BuildingManager] 클라이언트가 아닙니다.");
+                return;
+            }
+
+            ulong clientId = NetworkManager.Singleton.LocalClientId;
+            PlaceFoundationServerRpc(buildingIndex, position, rotation, clientId);
+        }
+
+        [Rpc(SendTo.Server, InvokePermission = RpcInvokePermission.Everyone)]
+        private void PlaceFoundationServerRpc(int buildingIndex, Vector3 position, int rotation, ulong requestingClientId)
+        {
+            // 보안 검증 1: 유효한 클라이언트인지 확인
+            if (!NetworkManager.Singleton.ConnectedClients.ContainsKey(requestingClientId))
+            {
+                Debug.LogWarning($"<color=red>[BuildingManager] 유효하지 않은 클라이언트 ID: {requestingClientId}</color>");
+                return;
+            }
+
+            // 보안 검증 2: 건물 인덱스 유효성 확인
+            if (buildingIndex < 0 || buildingIndex >= availableBuildings.Count)
+            {
+                Debug.LogWarning($"<color=red>[BuildingManager] 유효하지 않은 건물 인덱스: {buildingIndex}</color>");
+                return;
+            }
+
+            BuildingData data = availableBuildings[buildingIndex];
+
+            // 보안 검증 3: 건물 데이터 유효성 확인
+            if (data == null)
+            {
+                Debug.LogWarning($"<color=red>[BuildingManager] 건물 데이터가 유효하지 않습니다.</color>");
+                return;
+            }
+
+            // 토대 프리팹 확인
+            if (foundationPrefab == null)
+            {
+                Debug.LogError("<color=red>[BuildingManager] foundationPrefab이 설정되지 않았습니다!</color>");
+                return;
+            }
+
+            // 배치 가능 여부 확인
+            if (!IsValidPlacement(data, position, rotation, out Vector3 snappedPosition))
+            {
+                Debug.LogWarning($"<color=yellow>[BuildingManager] 토대 배치 불가능 위치</color>");
+                return;
+            }
+
+            Vector3Int gridPosition = WorldToGrid(snappedPosition);
+
+            // 플레이어 팀 가져오기
+            TeamType playerTeam = GetPlayerTeam(requestingClientId);
+
+            // 토대 생성
+            GameObject foundationObj = Instantiate(foundationPrefab, snappedPosition + data.placementOffset, Quaternion.Euler(0, rotation * 90f, 0));
+            NetworkObject netObj = foundationObj.GetComponent<NetworkObject>();
+
+            if (netObj != null)
+            {
+                netObj.SpawnWithOwnership(requestingClientId);
+
+                BuildingFoundation foundation = foundationObj.GetComponent<BuildingFoundation>();
+                if (foundation != null)
+                {
+                    foundation.Initialize(data, gridPosition, rotation, requestingClientId, playerTeam);
+                    placedFoundations.Add(foundation); // 토대 목록에 추가
+                    Debug.Log($"<color=yellow>[BuildingManager] {data.buildingName} 토대 생성 (소유자: {requestingClientId}, 위치: {gridPosition})</color>");
+                }
+                else
+                {
+                    Debug.LogError("<color=red>[BuildingManager] BuildingFoundation 컴포넌트가 없습니다!</color>");
+                    netObj.Despawn(true);
+                }
+            }
+            else
+            {
+                Debug.LogError("<color=red>[BuildingManager] NetworkObject 컴포넌트가 없습니다!</color>");
+                Destroy(foundationObj);
+            }
+        }
+
+        /// <summary>
+        /// 플레이어의 팀 가져오기
+        /// </summary>
+        private TeamType GetPlayerTeam(ulong playerId)
+        {
+            // 플레이어의 NetworkObject 찾기
+            if (NetworkManager.Singleton != null && NetworkManager.Singleton.SpawnManager != null)
+            {
+                if (NetworkManager.Singleton.SpawnManager.SpawnedObjects.TryGetValue(playerId, out NetworkObject playerNetObj))
+                {
+                    var teamMember = playerNetObj.GetComponent<ITeamMember>();
+                    if (teamMember != null)
+                    {
+                        return teamMember.GetTeam();
+                    }
+                }
+            }
+
+            // 기본값: 플레이어 팀
+            return TeamType.Player;
+        }
+
+        /// <summary>
+        /// 건설 완료 시 완성된 건물 생성 (BuildingFoundation에서 호출)
+        /// </summary>
+        [Rpc(SendTo.Server, InvokePermission = RpcInvokePermission.Everyone)]
+        public void SpawnCompletedBuildingServerRpc(string buildingDataName, Vector3Int gridPosition, int rotation, ulong ownerId, TeamType team)
+        {
+            // BuildingData 찾기
+            BuildingData data = availableBuildings.Find(b => b.name == buildingDataName);
+            if (data == null || data.prefab == null)
+            {
+                Debug.LogError($"<color=red>[BuildingManager] 건물 데이터를 찾을 수 없습니다: {buildingDataName}</color>");
+                return;
+            }
+
+            Vector3 worldPosition = GridToWorld(gridPosition);
+
+            // 완성된 건물 생성
+            GameObject buildingObj = Instantiate(data.prefab, worldPosition + data.placementOffset, Quaternion.Euler(0, rotation * 90f, 0));
+            NetworkObject netObj = buildingObj.GetComponent<NetworkObject>();
+
+            if (netObj != null)
+            {
+                netObj.SpawnWithOwnership(ownerId);
+
+                Building building = buildingObj.GetComponent<Building>();
+                if (building == null)
+                {
+                    building = buildingObj.AddComponent<Building>();
+                }
+
+                // 건물 초기화
+                building.Initialize(data, gridPosition, rotation, ownerId);
+                placedBuildings.Add(building);
+
+                Debug.Log($"<color=green>[BuildingManager] {data.buildingName} 건설 완료! (소유자: {ownerId}, 위치: {gridPosition}, 팀: {team})</color>");
+            }
+            else
+            {
+                Debug.LogError($"<color=red>[BuildingManager] NetworkObject 컴포넌트가 없습니다!</color>");
+                Destroy(buildingObj);
+            }
+        }
     }
 }

Assets/Scripts/BuildingPlacement.cs

@@ -153,6 +153,7 @@ namespace Northbound
                 return;
             }
 
+            // 완성 건물 프리팹으로 프리뷰 생성 (사용자가 완성 모습을 볼 수 있도록)
             previewObject = Instantiate(data.prefab);
             
             // Remove NetworkObject component from preview
@@ -162,6 +163,13 @@ namespace Northbound
                 Destroy(netObj);
             }
 
+            // Remove Building component from preview
+            Building building = previewObject.GetComponent<Building>();
+            if (building != null)
+            {
+                Destroy(building);
+            }
+
             // Apply ghost materials
             previewRenderers = previewObject.GetComponentsInChildren<Renderer>();
             foreach (var renderer in previewRenderers)
@@ -204,7 +212,7 @@ namespace Northbound
                 // Check if placement is valid
                 bool isValid = BuildingManager.Instance.IsValidPlacement(data, hit.point, currentRotation, out Vector3 snappedPosition);
 
-                // Update preview position
+                // Update preview position (placementOffset 적용)
                 previewObject.transform.position = snappedPosition + data.placementOffset;
                 previewObject.transform.rotation = Quaternion.Euler(0, currentRotation * 90f, 0);
 
@@ -231,23 +239,25 @@ namespace Northbound
 
         private void OnBuild(InputAction.CallbackContext context)
         {
-            if (!isBuildModeActive || previewObject == null || BuildingManager.Instance == null)
-                return;
+            if (!isBuildModeActive || previewObject == null) return;
 
-            BuildingData data = BuildingManager.Instance.availableBuildings[selectedBuildingIndex];
-            Vector3 placementPosition = previewObject.transform.position - data.placementOffset;
-
-            // Validate placement one more time
-            if (BuildingManager.Instance.IsValidPlacement(data, placementPosition, currentRotation, out Vector3 snappedPosition))
+            // Get placement position
+            Ray ray = Camera.main.ScreenPointToRay(Mouse.current.position.ReadValue());
+            if (Physics.Raycast(ray, out RaycastHit hit, maxPlacementDistance, groundLayer))
             {
-                // 🔥 변경: PlaceBuildingServerRpc 대신 RequestPlaceBuilding 호출
-                BuildingManager.Instance.RequestPlaceBuilding(selectedBuildingIndex, snappedPosition, currentRotation);
+                BuildingData selectedData = BuildingManager.Instance.availableBuildings[selectedBuildingIndex];
                 
-                Debug.Log($"<color=cyan>[BuildingPlacement] 건물 배치 요청: {data.buildingName}</color>");
-            }
-            else
-            {
-                Debug.LogWarning("<color=yellow>[BuildingPlacement] 건물을 배치할 수 없는 위치입니다.</color>");
+                if (BuildingManager.Instance.IsValidPlacement(selectedData, hit.point, currentRotation, out Vector3 groundPosition))
+                {
+                    // 토대 배치 요청 (실제로는 토대가 생성됨)
+                    BuildingManager.Instance.RequestPlaceFoundation(selectedBuildingIndex, groundPosition, currentRotation);
+                    
+                    Debug.Log($"<color=green>[BuildingPlacement] 토대 배치 요청: {selectedData.buildingName}</color>");
+                }
+                else
+                {
+                    Debug.LogWarning("<color=yellow>[BuildingPlacement] 배치할 수 없는 위치입니다.</color>");
+                }
             }
         }
 

Assets/Scripts/PlayerInteraction.cs

@@ -109,7 +109,11 @@ namespace Northbound
             {
                 _isInteracting = true;
                 _pendingEquipmentData = _currentInteractable.GetEquipmentData();
+                
+                string animTrigger = _currentInteractable.GetInteractionAnimation();
+                bool hasAnimation = !string.IsNullOrEmpty(animTrigger);
 
+                // 장비 장착 (애니메이션 이벤트 사용 안 할 경우)
                 if (!useAnimationEvents && useEquipment && _equipmentSocket != null && _pendingEquipmentData != null)
                 {
                     if (_pendingEquipmentData.attachOnStart && _pendingEquipmentData.equipmentPrefab != null)
@@ -123,15 +127,18 @@ namespace Northbound
                     }
                 }
 
-                if (playAnimations && _animator != null)
+                // 애니메이션 재생
+                if (playAnimations && _animator != null && hasAnimation)
                 {
-                    string animTrigger = _currentInteractable.GetInteractionAnimation();
-                    if (!string.IsNullOrEmpty(animTrigger))
-                    {
-                        _animator.SetTrigger(animTrigger);
-                    }
+                    _animator.SetTrigger(animTrigger);
+                }
+                else
+                {
+                    // 애니메이션이 없으면 즉시 상호작용 완료
+                    _isInteracting = false;
                 }
 
+                // 상호작용 실행 (서버에서 처리)
                 _currentInteractable.Interact(OwnerClientId);
             }
         }
@@ -167,6 +174,7 @@ namespace Northbound
         public void OnInteractionComplete()
         {
             _isInteracting = false;
+            Debug.Log("[PlayerInteraction] 상호작용 완료");
         }
 
         // ========================================