대장간을 이용한 업그레이드 기능 추가

Assets/Scripts/UI/UpgradeListPopup.cs

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+using System.Collections.Generic;
+using TMPro;
+using UnityEngine;
+using UnityEngine.InputSystem;
+using UnityEngine.UI;
+using Northbound.Data;
+
+namespace Northbound
+{
+    /// <summary>
+    /// 업그레이드 목록 팝업 UI 컨트롤러
+    /// </summary>
+    public class UpgradeListPopup : MonoBehaviour
+    {
+        [Header("References")]
+        [SerializeField] private Transform _contentParent;
+        [SerializeField] private GameObject _listItemPrefab;
+        [SerializeField] private TextMeshProUGUI _manaText;
+        [SerializeField] private Button _closeButton;
+
+        private PlayerUpgradeManager _playerUpgradeManager;
+        private PlayerStats _playerStats;
+        private List<UpgradeListItem> _listItems = new List<UpgradeListItem>();
+
+        private void Awake()
+        {
+            if (_closeButton != null)
+            {
+                _closeButton.onClick.AddListener(Close);
+            }
+        }
+
+        private void Update()
+        {
+            // ESC 키로 닫기
+            if (Keyboard.current != null && Keyboard.current.escapeKey.wasPressedThisFrame)
+            {
+                Close();
+            }
+
+            // 마나 텍스트 업데이트
+            UpdateManaDisplay();
+        }
+
+        /// <summary>
+        /// 팝업 초기화
+        /// </summary>
+        public void Initialize(PlayerUpgradeManager upgradeManager, PlayerStats playerStats)
+        {
+            _playerUpgradeManager = upgradeManager;
+            _playerStats = playerStats;
+
+            RefreshList();
+            UpdateManaDisplay();
+
+            gameObject.SetActive(true);
+        }
+
+        /// <summary>
+        /// 업그레이드 목록 갱신
+        /// </summary>
+        public void RefreshList()
+        {
+            // 기존 아이템 제거
+            ClearList();
+
+            if (_playerUpgradeManager == null) return;
+
+            var database = UpgradeDatabase.Instance;
+            if (database == null)
+            {
+                Debug.LogWarning("[UpgradeListPopup] UpgradeDatabase를 찾을 수 없습니다.");
+                return;
+            }
+
+            // 개인 업그레이드 목록 가져오기
+            var allUpgrades = database.GetPersonalUpgrades();
+            var ownedIds = _playerUpgradeManager.GetOwnedUpgradeIdSet();
+
+            foreach (var upgrade in allUpgrades)
+            {
+                if (upgrade == null) continue;
+
+                bool isOwned = ownedIds.Contains(upgrade.id);
+                bool prerequisitesMet = database.ArePrerequisitesMet(upgrade.id, ownedIds);
+
+                // 이미 구매했거나, 선행조건이 충족된 항목만 표시
+                if (!isOwned && !prerequisitesMet) continue;
+
+                bool canPurchase = !isOwned && prerequisitesMet;
+                CreateListItem(upgrade, isOwned, canPurchase);
+            }
+        }
+
+        /// <summary>
+        /// 리스트 아이템 생성
+        /// </summary>
+        private void CreateListItem(UpgradeData upgrade, bool isOwned, bool canPurchase)
+        {
+            if (_listItemPrefab == null || _contentParent == null) return;
+
+            GameObject itemObj = Instantiate(_listItemPrefab, _contentParent);
+            var listItem = itemObj.GetComponent<UpgradeListItem>();
+
+            if (listItem != null)
+            {
+                listItem.Setup(upgrade, isOwned, canPurchase, this);
+                _listItems.Add(listItem);
+            }
+            else
+            {
+                // UpgradeListItem 컴포넌트가 없으면 추가
+                listItem = itemObj.AddComponent<UpgradeListItem>();
+                listItem.Setup(upgrade, isOwned, canPurchase, this);
+                _listItems.Add(listItem);
+            }
+        }
+
+        /// <summary>
+        /// 리스트 비우기
+        /// </summary>
+        private void ClearList()
+        {
+            foreach (var item in _listItems)
+            {
+                if (item != null && item.gameObject != null)
+                {
+                    Destroy(item.gameObject);
+                }
+            }
+            _listItems.Clear();
+        }
+
+        /// <summary>
+        /// 업그레이드 구매 요청
+        /// </summary>
+        public void RequestPurchase(int upgradeId)
+        {
+            if (_playerUpgradeManager == null) return;
+
+            _playerUpgradeManager.RequestPurchaseUpgrade(upgradeId);
+
+            // 구매 후 목록 갱신
+            RefreshList();
+            UpdateManaDisplay();
+        }
+
+        /// <summary>
+        /// 마나 표시 업데이트
+        /// </summary>
+        private void UpdateManaDisplay()
+        {
+            if (_manaText == null) return;
+
+            var core = CoreResourceManager.Instance?.mainCore;
+            if (core != null)
+            {
+                _manaText.text = $"MANA: {core.TotalResources}";
+            }
+        }
+
+        /// <summary>
+        /// 팝업 닫기
+        /// </summary>
+        public void Close()
+        {
+            gameObject.SetActive(false);
+        }
+
+        private void OnDestroy()
+        {
+            ClearList();
+        }
+    }
+}