지하 생성 및 터널 구조 개선

Assets/DefaultNetworkPrefabs.asset

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Assets/Prefabs/Player.prefab

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Assets/Prefabs/ResourceBlock.prefab

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Assets/Prefabs/Tunnel.prefab

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Assets/Scenes/DefenceScene.unity

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+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1634635642}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 7fc80ebb61fb70d4fa694d3a1f81d2ab, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: Assembly-CSharp::UndergroundGenerator
+  ShowTopMostFoldoutHeaderGroup: 1
+  generationRange: {x: 10, y: 3, z: 6}
+  noiseScale: 0.14
+  hollowThreshold: 0.4
+  baseResourceThreshold: 0.6
+  increaseResourceWithDepth: 1
+  depthFactor: 0.005
+  normalBlockPrefab: {fileID: 989066657509100432, guid: dbb1cfcb3d9e3844e8d9cdf09b0a1660, type: 3}
+  resourceBlockPrefab: {fileID: 989066657509100432, guid: 17532917e1ada23469c573abf64905f0, type: 3}
+  containerName: UndergroundBlocks
+--- !u!4 &1634635645
+Transform:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1634635642}
+  serializedVersion: 2
+  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
+  m_LocalPosition: {x: -14, y: -8, z: -3}
+  m_LocalScale: {x: 1, y: 1, z: 1}
+  m_ConstrainProportionsScale: 0
+  m_Children: []
+  m_Father: {fileID: 0}
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
 --- !u!20 &1648146738 stripped
 Camera:
   m_CorrespondingSourceObject: {fileID: 5650099317679730308, guid: 2b08dd32e48ef5e4aa65a6122099152e, type: 3}
@@ -3346,3 +3286,4 @@ SceneRoots:
   - {fileID: 1409253547}
   - {fileID: 14847856}
   - {fileID: 556982644}
+  - {fileID: 1634635645}

Assets/Scripts/Enemy/EnemyAttack.cs

@@ -78,7 +78,6 @@ public class EnemyAttack : MonoBehaviour
             _targetDamageable.TakeDamage(damage);
             _nextAttackTime = Time.time + attackCooldown;
             StartCoroutine(FlashEmissionRoutine());
-            Debug.Log($"[공격!] 대상: {_target.name}");
         }
     }
 

Assets/Scripts/GameBase/BuildManager.cs

@@ -12,21 +12,23 @@ public class BuildManager : NetworkBehaviour
     public struct TurretData
     {
         public string turretName;
-        public GameObject finalPrefab;     // NetworkObject 필수
+        public GameObject finalPrefab;
-        public GameObject ghostPrefab;     // 로컬 프리뷰용
+        public GameObject ghostPrefab;
         public float buildTime;
     }
 
-    [Header("Grid Settings")]
+    [Header("Uniform Grid Settings")]
     public float cellSize = 1f;
-    public float tunnelHeight = 3f;
+    [SerializeField] private float pivotOffset = 0.5f; // 블록/터널 에셋의 중심점
-    [SerializeField] private float yOffset = 0.5f; // 터널 중심점 오프셋
+
+    [Header("Tunnel Settings")]
+    public int tunnelLengthInBlocks = 3;
 
     [Header("Prefabs & Layers")]
     [SerializeField] private GameObject constructionSitePrefab;
     [SerializeField] private List<TurretData> turretLibrary = new List<TurretData>();
     [SerializeField] private LayerMask groundLayer;
-    [SerializeField] private LayerMask playerLayer;
+    [SerializeField] private LayerMask tunnelLayer;
 
     private int _selectedTurretIndex = 0;
     private bool _isBuildMode = false;
@@ -34,7 +36,6 @@ public class BuildManager : NetworkBehaviour
     private Vector3Int _currentGridPos;
     private PlayerInputActions _inputActions;
 
-    // 데이터 레지스트리 (다른 코드에서 참조)
     private Dictionary<Vector3Int, TunnelNode> _tunnelRegistry = new Dictionary<Vector3Int, TunnelNode>();
     private HashSet<Vector3Int> _occupiedNodes = new HashSet<Vector3Int>();
 
@@ -42,26 +43,20 @@ public class BuildManager : NetworkBehaviour
     {
         if (Instance == null) Instance = this;
         else Destroy(gameObject);
-
         _inputActions = new PlayerInputActions();
     }
 
     public override void OnNetworkSpawn()
     {
-        // 최신 Action-based 이벤트 바인딩
         _inputActions.Player.ToggleBuild.performed += ctx => ToggleBuildMode();
         _inputActions.Player.Build.performed += ctx => OnBuildRequested();
         _inputActions.Player.Cancel.performed += ctx => ExitBuildMode();
 
-        // 숫자키 슬롯 선택 (Input Action 에셋 설정에 따라 Select1, Select2... 등 사용)
         _inputActions.Player.Select1.performed += ctx => SelectTurret(0);
         _inputActions.Player.Select2.performed += ctx => SelectTurret(1);
         _inputActions.Player.Select3.performed += ctx => SelectTurret(2);
 
         _inputActions.Enable();
-
-        // 시작 시 씬에 배치된 터널 자동 등록
-        RegisterAllExistingTunnels();
     }
 
     void Update()
@@ -70,144 +65,115 @@ public class BuildManager : NetworkBehaviour
         UpdateGhostPosition();
     }
 
-    #region Selection & Build Logic
-
-    public void SelectTurret(int index)
-    {
-        if (index < 0 || index >= turretLibrary.Count) return;
-
-        _selectedTurretIndex = index;
-        Debug.Log($"타워 선택: {turretLibrary[_selectedTurretIndex].turretName}");
-
-        if (_isBuildMode)
-        {
-            if (_ghostInstance != null) Destroy(_ghostInstance);
-            _ghostInstance = Instantiate(turretLibrary[_selectedTurretIndex].ghostPrefab);
-            _ghostInstance.transform.position = GridToWorld(_currentGridPos);
-        }
-    }
-
     private void UpdateGhostPosition()
     {
         Ray ray = Camera.main.ScreenPointToRay(Mouse.current.position.ReadValue());
-        int tunnelMask = LayerMask.GetMask("Tunnel");
 
-        if (Physics.Raycast(ray, out RaycastHit hit, Mathf.Infinity, groundLayer | tunnelMask))
+        if (Physics.Raycast(ray, out RaycastHit hit, Mathf.Infinity, groundLayer | tunnelLayer))
         {
-            Vector3Int gridPos = WorldToGrid3D(hit.point);
+            Vector3 targetPos;
 
-            // 터널 조준 시 해당 터널의 한 칸 아래로 스냅
+            // 터널 조준 시: 복잡한 계산 없이 X, Z는 유지, Y만 3 낮춤
-            if (((1 << hit.collider.gameObject.layer) & tunnelMask) != 0)
+            if (((1 << hit.collider.gameObject.layer) & tunnelLayer) != 0)
             {
-                gridPos = WorldToGrid3D(hit.collider.transform.position) + Vector3Int.down;
+                Vector3 parentPos = hit.collider.transform.position;
+                targetPos = new Vector3(parentPos.x, parentPos.y - (tunnelLengthInBlocks * cellSize), parentPos.z);
+            }
+            else
+            {
+                // 지형 조준 시: 격자에 맞춤
+                _currentGridPos = WorldToGrid3D(hit.point + hit.normal * 0.01f);
+                targetPos = GridToWorld(_currentGridPos);
             }
 
-            _currentGridPos = gridPos;
+            _currentGridPos = WorldToGrid3D(targetPos);
-            _ghostInstance.transform.position = GridToWorld(gridPos);
+            _ghostInstance.transform.position = targetPos;
         }
     }
 
+    // 모든 좌표를 반올림하여 0.5 단위 오차를 제거
+    public Vector3Int WorldToGrid3D(Vector3 worldPos)
+    {
+        return new Vector3Int(
+            Mathf.RoundToInt((worldPos.x - pivotOffset) / cellSize),
+            Mathf.RoundToInt((worldPos.y - pivotOffset) / cellSize),
+            Mathf.RoundToInt((worldPos.z - pivotOffset) / cellSize)
+        );
+    }
+
+    public Vector3 GridToWorld(Vector3Int gridPos)
+    {
+        return new Vector3(
+            (gridPos.x * cellSize) + pivotOffset,
+            (gridPos.y * cellSize) + pivotOffset,
+            (gridPos.z * cellSize) + pivotOffset
+        );
+    }
+
+    // [에러 해결] ConstructionSite.cs 참조용
+    public TurretData GetTurretData(int index)
+    {
+        if (index < 0 || index >= turretLibrary.Count) return default;
+        return turretLibrary[index];
+    }
+
+    // BuildManager.cs 내 핵심 수정 부분
+    // [수정] 서버와 클라이언트 모두에서 터널 위치를 기록하도록 함
+    // BuildManager.cs 내부
+    public void RegisterTunnel(Vector3Int topPos, TunnelNode node)
+    {
+        // 터널이 점유하는 Y, Y-1, Y-2 세 칸 모두에 노드를 등록합니다.
+        for (int i = 0; i < 3; i++)
+        {
+            Vector3Int cellPos = topPos + (Vector3Int.down * i);
+            if (!_tunnelRegistry.ContainsKey(cellPos))
+            {
+                _tunnelRegistry.Add(cellPos, node);
+            }
+        }
+    }
+
+    // [수정] 특정 좌표의 터널을 찾는 공용 함수
+    public TunnelNode GetTunnelAt(Vector3Int pos)
+    {
+        return _tunnelRegistry.GetValueOrDefault(pos);
+    }
+
+    // 1. 건설 요청 시 실제 계산된 worldPos를 넘겨줍니다.
     private void OnBuildRequested()
     {
         if (!_isBuildMode || EventSystem.current.IsPointerOverGameObject()) return;
 
-        // 서버에 건설 가능 여부 확인 및 생성 요청
+        // 고스트가 현재 위치한 '그 좌표'를 그대로 보냅니다.
-        RequestBuildRpc(_selectedTurretIndex, _currentGridPos);
+        RequestBuildRpc(_selectedTurretIndex, _currentGridPos, _ghostInstance.transform.position);
-
         ExitBuildMode();
     }
 
+    // 2. RPC에서 넘겨받은 worldPos를 사용하여 토대를 생성합니다.
     [Rpc(SendTo.Server, InvokePermission = RpcInvokePermission.Everyone)]
-    private void RequestBuildRpc(int index, Vector3Int gridPos)
+    private void RequestBuildRpc(int index, Vector3Int gridPos, Vector3 worldPos)
     {
-        // 서버 측 중복 점유 확인
+        // GridToWorld를 다시 계산하지 않고 전달받은 worldPos를 그대로 사용합니다.
-        if (_occupiedNodes.Contains(gridPos)) return;
+        GameObject siteObj = Instantiate(constructionSitePrefab, worldPos, Quaternion.identity);
-
-        Vector3 spawnPos = GridToWorld(gridPos);
-
-        // 1. 토대 생성 및 네트워크 스폰
-        GameObject siteObj = Instantiate(constructionSitePrefab, spawnPos, Quaternion.identity);
         siteObj.GetComponent<NetworkObject>().Spawn();
 
-        // 2. 토대 데이터 초기화
         ConstructionSite site = siteObj.GetComponent<ConstructionSite>();
-        if (site != null)
+        if (site != null) site.Initialize(index, gridPos);
-        {
-            site.Initialize(index, gridPos);
     }
 
-        _occupiedNodes.Add(gridPos);
+    public void SelectTurret(int index)
-    }
-
-    #endregion
-
-    #region Utility Functions (External References)
-
-    // ConstructionSite에서 프리팹 정보를 가져갈 때 사용
-    public TurretData GetTurretData(int index) => turretLibrary[index];
-
-    // TunnelNode가 스폰될 때 자신을 등록하기 위해 사용
-    public void RegisterTunnel(Vector3Int pos, TunnelNode node)
     {
-        if (!_tunnelRegistry.ContainsKey(pos))
+        if (index < 0 || index >= turretLibrary.Count) return;
+        _selectedTurretIndex = index;
+        if (_isBuildMode && _ghostInstance != null)
         {
-            _tunnelRegistry.Add(pos, node);
+            Destroy(_ghostInstance);
-            _occupiedNodes.Add(pos); // 건설된 구역으로 마킹
-        }
-    }
-
-    // TunnelNode가 위아래 노드를 찾기 위해 사용
-    public TunnelNode GetTunnelAt(Vector3Int pos) => _tunnelRegistry.GetValueOrDefault(pos);
-
-    // 좌표 변환: 월드 -> 격자 인덱스 (0.5 오프셋 반영)
-    public Vector3Int WorldToGrid3D(Vector3 worldPos)
-    {
-        return new Vector3Int(
-            Mathf.FloorToInt(worldPos.x / cellSize),
-            Mathf.RoundToInt((worldPos.y - yOffset) / tunnelHeight),
-            Mathf.FloorToInt(worldPos.z / cellSize)
-        );
-    }
-
-    // 좌표 변환: 격자 인덱스 -> 월드 (0.5 오프셋 반영)
-    public Vector3 GridToWorld(Vector3Int gridPos)
-    {
-        return new Vector3(
-            gridPos.x * cellSize,
-            (gridPos.y * tunnelHeight) + yOffset,
-            gridPos.z * cellSize
-        );
-    }
-
-    // 씬에 미리 배치된 터널들을 한꺼번에 등록
-    public void RegisterAllExistingTunnels()
-    {
-        TunnelNode[] nodes = FindObjectsByType<TunnelNode>(FindObjectsSortMode.None);
-        foreach (var node in nodes)
-        {
-            Vector3Int pos = WorldToGrid3D(node.transform.position);
-            RegisterTunnel(pos, node);
-        }
-    }
-
-    #endregion
-
-    #region Mode Switching
-
-    public void ToggleBuildMode() { if (_isBuildMode) ExitBuildMode(); else EnterBuildMode(); }
-    private void EnterBuildMode()
-    {
-        if (turretLibrary.Count == 0) return;
-        _isBuildMode = true;
             _ghostInstance = Instantiate(turretLibrary[_selectedTurretIndex].ghostPrefab);
         }
-    private void ExitBuildMode()
-    {
-        _isBuildMode = false;
-        if (_ghostInstance) Destroy(_ghostInstance);
     }
 
-    #endregion
+    private void ToggleBuildMode() { if (_isBuildMode) ExitBuildMode(); else EnterBuildMode(); }
-
+    private void EnterBuildMode() { _isBuildMode = true; if (turretLibrary.Count > 0) _ghostInstance = Instantiate(turretLibrary[_selectedTurretIndex].ghostPrefab); }
+    private void ExitBuildMode() { _isBuildMode = false; if (_ghostInstance) Destroy(_ghostInstance); }
     public override void OnNetworkDespawn() => _inputActions.Disable();
 }

Assets/Scripts/GameBase/UndergroundGenerator.cs

@@ -0,0 +1,120 @@
+using UnityEngine;
+using Unity.Netcode;
+
+public class UndergroundGenerator : NetworkBehaviour
+{
+    [Header("Generation Range")]
+    [SerializeField] private Vector3Int generationRange = new Vector3Int(20, 30, 10);
+    [SerializeField] private float noiseScale = 0.12f;
+
+    [Header("Thresholds (0 to 1)")]
+    [SerializeField, Range(0, 1)] private float hollowThreshold = 0.35f;
+    [SerializeField, Range(0, 1)] private float baseResourceThreshold = 0.8f;
+
+    [Header("Depth Settings")]
+    [SerializeField] private bool increaseResourceWithDepth = true;
+    [SerializeField] private float depthFactor = 0.005f; // 깊어질수록 임계값 감소 (자원 증가)
+
+    [Header("Prefabs")]
+    [SerializeField] private GameObject normalBlockPrefab;
+    [SerializeField] private GameObject resourceBlockPrefab;
+
+    [Header("Organization")]
+    [SerializeField] private string containerName = "UndergroundBlocks";
+    private Transform _blockContainer; // 블록들을 담을 부모 오브젝트
+
+    private float _seedX, _seedY, _seedZ;
+
+    private void Awake()
+    {
+        _seedX = Random.Range(0f, 99999f);
+        _seedY = Random.Range(0f, 99999f);
+        _seedZ = Random.Range(0f, 99999f);
+
+        // Hierarchy 정리를 위한 컨테이너 생성
+        _blockContainer = new GameObject(containerName).transform;
+    }
+
+    public override void OnNetworkSpawn()
+    {
+        if (IsServer) GenerateFromGeneratorPivot();
+    }
+
+    private void GenerateFromGeneratorPivot()
+    {
+        Vector3Int originGrid = BuildManager.Instance.WorldToGrid3D(transform.position);
+
+        for (int x = 0; x < generationRange.x; x++)
+        {
+            for (int y = 0; y > -generationRange.y; y--)
+            {
+                for (int z = 0; z < generationRange.z; z++)
+                {
+                    Vector3Int targetGridPos = originGrid + new Vector3Int(x, y, z);
+                    float noise = Get3DNoise(targetGridPos.x, targetGridPos.y, targetGridPos.z);
+
+                    if (noise < hollowThreshold) continue;
+
+                    float currentThreshold = baseResourceThreshold + (y * depthFactor);
+                    GameObject prefab = (noise > currentThreshold) ? resourceBlockPrefab : normalBlockPrefab;
+
+                    SpawnBlock(prefab, targetGridPos);
+                }
+            }
+        }
+    }
+
+    private void SpawnBlock(GameObject prefab, Vector3Int gridPos)
+    {
+        if (prefab == null) return;
+
+        Vector3 worldPos = BuildManager.Instance.GridToWorld(gridPos);
+
+        // 1. 생성 시 부모(Container)를 지정하여 Hierarchy 정리
+        GameObject block = Instantiate(prefab, worldPos, Quaternion.identity);
+
+        // 2. 네트워크 스폰 (Netcode for GameObjects)
+        block.GetComponent<NetworkObject>().Spawn();
+    }
+
+    private float Get3DNoise(int x, int y, int z)
+    {
+        // 대칭 방지를 위한 10000 오프셋 및 시드 적용
+        float xCoord = (x + _seedX + 10000f) * noiseScale;
+        float yCoord = (y + _seedY + 10000f) * noiseScale;
+        float zCoord = (z + _seedZ + 10000f) * noiseScale;
+
+        float ab = Mathf.PerlinNoise(xCoord, yCoord);
+        float bc = Mathf.PerlinNoise(yCoord, zCoord);
+        float ac = Mathf.PerlinNoise(xCoord, zCoord);
+
+        return (ab + bc + ac) / 3f;
+    }
+
+    private void OnDrawGizmosSelected()
+    {
+        BuildManager bm = BuildManager.Instance;
+        if (bm == null) bm = FindFirstObjectByType<BuildManager>(); // 에러 방지 안전장치
+        if (bm == null) return;
+
+        Vector3Int originGrid = bm.WorldToGrid3D(transform.position);
+
+        for (int x = 0; x < generationRange.x; x += 2)
+        {
+            for (int y = -generationRange.y; y < 0; y += 2)
+            {
+                for (int z = 0; z < generationRange.z; z += 2)
+                {
+                    Vector3Int targetGridPos = originGrid + new Vector3Int(x, y, z);
+                    float noise = Get3DNoise(targetGridPos.x, targetGridPos.y, targetGridPos.z);
+
+                    if (noise < hollowThreshold) continue;
+
+                    Gizmos.color = (noise > baseResourceThreshold) ? Color.yellow : new Color(0.5f, 0.5f, 0.5f, 0.2f);
+                    Vector3 pos = bm.GridToWorld(targetGridPos);
+                    Gizmos.DrawSphere(pos, 0.2f);
+                }
+            }
+        }
+    }
+}

Assets/Scripts/GameBase/UndergroundGenerator.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 7fc80ebb61fb70d4fa694d3a1f81d2ab

Assets/Scripts/IInteractable.cs

@@ -4,7 +4,4 @@ public interface IInteractable
 {
     // 누가 상호작용을 시도했는지 알려주기 위해 GameObject를 인자로 받습니다.
     void Interact(GameObject user);
-
-    // 선택 사항: 화면에 띄울 메시지를 반환하는 기능 (예: "통로 이용하기 [E]")
-    string GetInteractionText();
 }

Assets/Scripts/MineableBlock.cs

@@ -26,7 +26,6 @@ public class MineableBlock : NetworkBehaviour
         if (_currentHp.Value <= 0) return;
 
         _currentHp.Value -= damageAmount;
-        Debug.Log($"블록 대미지! 남은 체력: {_currentHp.Value}");
 
         if (_currentHp.Value <= 0)
         {

Assets/Scripts/Player/PlayerNetworkController.cs

@@ -1,11 +1,12 @@
 using UnityEngine;
 using UnityEngine.InputSystem;
-using Unity.Netcode; // NGO 필수 네임스페이스
+using Unity.Netcode;
 using Unity.Netcode.Components;
 
 [RequireComponent(typeof(NetworkObject))]
 public class PlayerNetworkController : NetworkBehaviour
 {
+    // ... 기존 변수들 유지 ...
     [Header("Movement Settings")]
     public float moveSpeed = 5f;
     public float rotationSpeed = 10f;
@@ -21,7 +22,7 @@ public class PlayerNetworkController : NetworkBehaviour
     [Header("Mining Settings")]
     [SerializeField] private float attackRange = 1.5f;
     [SerializeField] private int miningDamage = 25;
-    [SerializeField] private LayerMask mineableLayer; // 'Mineable' 레이어 설정 필요
+    [SerializeField] private LayerMask mineableLayer;
 
     private CharacterController _controller;
     private PlayerInputActions _inputActions;
@@ -34,16 +35,15 @@ public class PlayerNetworkController : NetworkBehaviour
     private bool _isGrounded;
     private bool _isHoldingInteract = false;
 
-    // NGO에서 Start 대신 사용하는 네트워크 초기화 메서드
+    // NGO 초기화
     public override void OnNetworkSpawn()
     {
-        // 내 캐릭터가 아니라면 입력을 활성화하지 않습니다.
         if (!IsOwner) return;
 
         _inputActions = new PlayerInputActions();
         _inputActions.Player.Jump.performed += ctx => OnJump();
-        _inputActions.Player.Attack.performed += ctx => OnAttackServerRpc(); // 서버에 공격 요청
+        _inputActions.Player.Attack.performed += ctx => OnAttackServerRpc();
-        _inputActions.Player.Interact.performed += ctx => OnInteractTap();
+        _inputActions.Player.Interact.performed += ctx => OnInteractTap(); // 탭 상호작용
 
         _inputActions.Player.Interact.started += ctx => _isHoldingInteract = true;
         _inputActions.Player.Interact.canceled += ctx => _isHoldingInteract = false;
@@ -60,17 +60,16 @@ public class PlayerNetworkController : NetworkBehaviour
 
     void Update()
     {
-        // [중요] '나'의 캐릭터가 아니면 조종 로직을 아예 실행하지 않습니다.
         if (!IsOwner) return;
         if (_traveler != null && _traveler.IsTraveling) return;
 
         HandleGravity();
         HandleMovement();
 
-        // 건설 가속 로직
         if (_isHoldingInteract) PerformConstructionSupport();
     }
 
+    // --- 이동 관련 로직 (기존 유지) ---
     private void HandleMovement()
     {
         _isGrounded = _controller.isGrounded;
@@ -80,7 +79,6 @@ public class PlayerNetworkController : NetworkBehaviour
         _moveInput = _inputActions.Player.Move.ReadValue<Vector2>();
         Vector3 move = new Vector3(_moveInput.x, 0, _moveInput.y).normalized;
 
-        // 지상/공중 및 공격 중 관성 처리
         if (isAttacking) move = _isGrounded ? Vector3.zero : _currentMoveDir;
         else if (move.magnitude > 0.1f) _currentMoveDir = move;
 
@@ -93,7 +91,6 @@ public class PlayerNetworkController : NetworkBehaviour
             }
             _controller.Move(move * moveSpeed * Time.deltaTime);
         }
-
         _animator.SetFloat("MoveSpeed", isAttacking && _isGrounded ? 0 : move.magnitude);
     }
 
@@ -109,49 +106,56 @@ public class PlayerNetworkController : NetworkBehaviour
         if (_isGrounded) _velocity.y = Mathf.Sqrt(jumpHeight * -2f * gravity);
     }
 
-    // 기존 OnAttackServerRpc를 수정하거나 호출되는 시점에 아래 로직 포함
+    // --- 채광 로직 (기존 유지) ---
     [Rpc(SendTo.Server, InvokePermission = RpcInvokePermission.Owner)]
     private void OnAttackServerRpc()
     {
-        // 모든 유저에게 애니메이션 재생 신호 전송
         OnAttackClientRpc();
-
-        // [채광 판정] 서버에서 물리 연산을 통해 전방의 블록 탐색
         Collider[] hitBlocks = Physics.OverlapSphere(transform.position + transform.forward, attackRange, mineableLayer);
-
         foreach (var col in hitBlocks)
         {
             MineableBlock block = col.GetComponentInParent<MineableBlock>();
-            if (block != null)
+            if (block != null) block.TakeDamageRpc(miningDamage);
-            {
-                // 서버가 직접 블록의 대미지 함수 호출
-                block.TakeDamageRpc(miningDamage);
-            }
         }
     }
 
     [ClientRpc]
-    private void OnAttackClientRpc()
+    private void OnAttackClientRpc() => _animator.SetTrigger("Attack");
-    {
-        _animator.SetTrigger("Attack");
-    }
 
     private void OnInteractTap()
     {
+        if (!IsOwner) return;
         _animator.SetTrigger("Interact");
 
+        // 1. 캐릭터 주변 반경 내의 모든 콜라이더 감지
         Collider[] colliders = Physics.OverlapSphere(transform.position, interactRange, interactableLayer);
+
+        IInteractable closestTarget = null;
+        float minDistance = float.MaxValue;
+
         foreach (var col in colliders)
+        {
+            // 2. 방향 조건 없이 거리만 체크하여 가장 가까운 것 선택
+            float dist = Vector3.Distance(transform.position, col.transform.position);
+            if (dist < minDistance)
             {
                 IInteractable interactable = col.GetComponentInParent<IInteractable>();
                 if (interactable != null)
                 {
-                interactable.Interact(gameObject);
+                    minDistance = dist;
-                break;
+                    closestTarget = interactable;
                 }
             }
         }
 
+        // 3. 가장 가까운 대상이 있다면 상호작용 실행
+        if (closestTarget != null)
+        {
+            closestTarget.Interact(gameObject);
+        }
+    }
+
+    // 건설 지원 로직 (범위 내 지속 작업이므로 OverlapSphere 유지 또는 Raycast로 변경 가능)
     private void PerformConstructionSupport()
     {
         Collider[] targets = Physics.OverlapSphere(transform.position, interactRange, constructionLayer);
@@ -160,7 +164,6 @@ public class PlayerNetworkController : NetworkBehaviour
             ConstructionSite site = col.GetComponentInParent<ConstructionSite>();
             if (site != null)
             {
-                // 건설 진행도는 서버에서 관리하는 것이 안전하므로 나중에 RPC로 전환 필요
                 site.AdvanceConstruction(Time.deltaTime * buildSpeedMultiplier);
             }
         }
@@ -168,6 +171,6 @@ public class PlayerNetworkController : NetworkBehaviour
 
     public override void OnNetworkDespawn()
     {
-        if (IsOwner) _inputActions.Disable();
+        if (IsOwner && _inputActions != null) _inputActions.Disable();
     }
 }

Assets/Scripts/Tower/ConstructionSite.cs

@@ -14,6 +14,8 @@ public class ConstructionSite : NetworkBehaviour
         if (!IsServer) return;
         _syncTurretIndex.Value = index;
         _gridPos = pos;
+
+        // BuildManager로부터 데이터 참조
         _targetBuildTime = BuildManager.Instance.GetTurretData(index).buildTime;
     }
 
@@ -35,8 +37,8 @@ public class ConstructionSite : NetworkBehaviour
         _isCompleted = true;
         var data = BuildManager.Instance.GetTurretData(_syncTurretIndex.Value);
 
-        // [중요] 저장된 그리드 좌표로부터 정확한 월드 좌표 복원
+        // 고스트가 있던 그 위치 그대로 생성
-        Vector3 finalPos = BuildManager.Instance.GridToWorld(_gridPos);
+        Vector3 finalPos = transform.position;
         GameObject finalObj = Instantiate(data.finalPrefab, finalPos, Quaternion.identity);
 
         finalObj.GetComponent<NetworkObject>().Spawn();

Assets/Scripts/TunnelNode.cs

@@ -1,41 +1,79 @@
 using UnityEngine;
-using Unity.Netcode;
 
-public class TunnelNode : NetworkBehaviour, IInteractable
+public class TunnelNode : MonoBehaviour, IInteractable
 {
-    public TunnelNode aboveNode;
+    public bool isTop;
-    public TunnelNode belowNode;
+    [SerializeField] private TunnelNode partnerNode; // 같은 프리팹 내 반대쪽 노드
 
-    public override void OnNetworkSpawn()
+    // [자동 연결] 닿아있는 다른 터널의 노드
+    private TunnelNode neighborNode;
+
+    // 물리적으로 닿으면 자동으로 연결 고리 생성 
+    private void OnTriggerEnter(Collider other)
     {
-        // 모든 클라이언트에서 각자 장부에 등록
+        if (other.TryGetComponent<TunnelNode>(out var neighbor))
-        Vector3Int myPos = BuildManager.Instance.WorldToGrid3D(transform.position);
+        {
-        BuildManager.Instance.RegisterTunnel(myPos, this);
+            // 상단 노드는 하단 노드와만, 하단은 상단과만 연결 (잘못된 조립 방지)
-
+            if (this.isTop != neighbor.isTop)
-        // 모든 노드가 등록될 시간을 벌기 위해 서버에서 약간 지연 후 연결 명령
+            {
-        if (IsServer) Invoke(nameof(SyncLinks), 0.2f);
+                neighborNode = neighbor;
+            }
+        }
     }
 
-    private void SyncLinks() => LinkVerticalRpc();
+    private void OnTriggerExit(Collider other)
-
-    [Rpc(SendTo.Everyone)]
-    private void LinkVerticalRpc() => LinkVertical();
-
-    public void LinkVertical()
     {
-        Vector3Int myPos = BuildManager.Instance.WorldToGrid3D(transform.position);
+        if (other.TryGetComponent<TunnelNode>(out var neighbor))
-        aboveNode = BuildManager.Instance.GetTunnelAt(myPos + Vector3Int.up);
-        belowNode = BuildManager.Instance.GetTunnelAt(myPos + Vector3Int.down);
-
-        if (aboveNode != null) aboveNode.belowNode = this;
-        if (belowNode != null) belowNode.aboveNode = this;
-    }
-
-    public void Interact(GameObject user)
         {
-        var traveler = user.GetComponent<TunnelTraveler>();
+            if (neighborNode == neighbor) neighborNode = null;
-        if (traveler && !traveler.IsTraveling) traveler.StartTravel(this);
+        }
     }
 
-    public string GetInteractionText() => "터널 이용 [E]";
+    public void Interact(GameObject player)
+    {
+        // 내가 체인의 끝단(입구/출구)일 때만 작동
+        if (neighborNode != null) return;
+
+        // 반대쪽 끝 노드를 찾아서 이동 요청
+        TunnelNode endNode = FindUltimateEndNode();
+        if (player.TryGetComponent<TunnelTraveler>(out var traveler))
+        {
+            traveler.StartTravel(endNode.transform.position, !endNode.isTop);
+        }
+    }
+
+    private TunnelNode FindUltimateEndNode()
+    {
+        TunnelNode current = this;
+
+        // [연결 고리 추적] 파트너 -> 이웃 -> 파트너 -> 이웃... 
+        while (true)
+        {
+            // 1. 현재 노드의 프리팹 반대쪽(파트너)으로 이동
+            TunnelNode partner = current.partnerNode;
+
+            // 2. 파트너와 연결된 다음 터널의 노드가 있는지 확인
+            if (partner.neighborNode != null)
+            {
+                current = partner.neighborNode; // 다음 터널로 점프
+            }
+            else
+            {
+                return partner; // 더 이상 연결이 없으면 파트너가 최종 목적지
+            }
+        }
+    }
+
+    // 디버깅: 연결 상태를 씬 뷰에서 확인
+    private void OnDrawGizmos()
+    {
+        Gizmos.color = isTop ? Color.cyan : Color.blue;
+        Gizmos.DrawWireSphere(transform.position, 0.2f);
+
+        if (neighborNode != null)
+        {
+            Gizmos.color = Color.red;
+            Gizmos.DrawLine(transform.position, neighborNode.transform.position);
+        }
+    }
 }

Assets/Scripts/TunnelTraveler.cs

@@ -1,6 +1,5 @@
 using UnityEngine;
 using System.Collections;
-using System.Collections.Generic;
 
 public class TunnelTraveler : MonoBehaviour
 {
@@ -8,58 +7,33 @@ public class TunnelTraveler : MonoBehaviour
     private bool _isTraveling;
     public bool IsTraveling => _isTraveling;
 
-    public void StartTravel(TunnelNode start)
+    public void StartTravel(Vector3 targetPos, bool isBottom)
     {
         if (_isTraveling) return;
 
-        // [디버그 1] 상호작용한 노드의 연결 상태 확인
+        // 하단 노드가 목적지라면 캐릭터 중심 좌표를 고려해 약간 더 아래(바닥)로 설정
-        Debug.Log($"<color=white>[Travel] 시작 노드: {start.name} | 위: {(start.aboveNode != null)} | 아래: {(start.belowNode != null)}</color>");
+        Vector3 finalDestination = isBottom ? targetPos + Vector3.down * 0.5f : targetPos;
-
+        StartCoroutine(TravelRoutine(finalDestination));
-        List<Vector3> path = new List<Vector3>();
-
-        // 이동 방향 결정 (아래가 있으면 아래로, 없으면 위로)
-        bool goDown = start.belowNode != null;
-        TunnelNode curr = goDown ? start.belowNode : start.aboveNode;
-
-        while (curr != null)
-        {
-            path.Add(curr.transform.position);
-            curr = goDown ? curr.belowNode : curr.aboveNode;
     }
 
-        // [디버그 2] 최종 경로 개수 확인
+    private IEnumerator TravelRoutine(Vector3 destination)
-        Debug.Log($"<color=yellow>[Travel] 생성된 경로 포인트 개수: {path.Count}</color>");
-
-        if (path.Count > 0)
     {
-            StartCoroutine(Travel(path));
-        }
-        else
-        {
-            Debug.LogWarning("<color=red>[Travel] 이동할 경로가 없습니다! 노드 연결을 확인하세요.</color>");
-        }
-    }
-
-    private IEnumerator Travel(List<Vector3> path)
-    {
-        Debug.Log("<color=green>[Travel] 코루틴 이동 시작!</color>");
         _isTraveling = true;
         var cc = GetComponent<CharacterController>();
         if (cc) cc.enabled = false;
 
-        foreach (var point in path)
+        // X, Z는 유지한 채 Y축 중심으로 이동
-        {
+        float halfHeight = cc ? cc.height / 2f : 0f;
-            Vector3 target = new Vector3(point.x, point.y - (cc ? cc.height / 2 : 0), point.z);
+        Vector3 target = new Vector3(destination.x, destination.y - halfHeight, destination.z);
-            while (Vector3.Distance(transform.position, target) > 0.1f)
+
+        while (Vector3.Distance(transform.position, target) > 0.05f)
         {
             transform.position = Vector3.MoveTowards(transform.position, target, travelSpeed * Time.deltaTime);
             yield return null;
         }
-            transform.position = target;
-        }
 
+        transform.position = target;
         if (cc) cc.enabled = true;
         _isTraveling = false;
-        Debug.Log("<color=green>[Travel] 이동 완료!</color>");
     }
 }

ProjectSettings/TagManager.asset

@@ -21,7 +21,7 @@ TagManager:
   - Interactable
   - Tunnel
   - Mineable
-  - 
+  - TunnelNode
   - 
   - 
   -