예산

Assets/02_Scripts/Data/Player/PlayerWallet.cs

@@ -1,28 +1,36 @@
+using System;
 using UnityEngine;
+using UnityEngine.Serialization;
 
 namespace VRShopping.Player
 {
     public class PlayerWallet : MonoBehaviour
     {
-        //예산
-        [Min(0)] public int Budget;
+        // 예산 (Inspector에서 초기값 설정)
+        [SerializeField, Min(0), FormerlySerializedAs("Budget")]
+        private int _budget;
+
+        // UI 갱신용 이벤트
+        public event Action<int> OnBudgetChanged;
+
+        public int Budget => _budget;
+
+        private void Start()
+        {
+            OnBudgetChanged?.Invoke(_budget);
+        }
 
         public bool PayMoney(int cost)
         {
-            bool successFlag;
-
             //예산이 비용보다 많을시
-            if(Budget >= cost)
+            if (_budget >= cost)
             {
-                Budget -= cost;
-                successFlag = true;
+                _budget -= cost;
+                OnBudgetChanged?.Invoke(_budget);
+                return true;
             }
-            else //예산 부족
-            {
-                successFlag = false;
-            }
-
-            return successFlag;
+            //예산 부족
+            return false;
         }
     }
 }

Assets/02_Scripts/UI/WalletHud.cs

@@ -0,0 +1,35 @@
+using TMPro;
+using UnityEngine;
+using VRShopping.Player;
+
+namespace VRShopping.UI
+{
+    // 왼쪽 손목 허기 게이지 위에 부착되는 소지금 HUD.
+    // PlayerWallet.OnBudgetChanged에 자동 구독.
+    public class WalletHud : MonoBehaviour
+    {
+        [SerializeField] private TMP_Text _text;
+        [SerializeField] private PlayerWallet _bound;
+
+        private void Start()
+        {
+            _bound.OnBudgetChanged += HandleChanged;
+            HandleChanged(_bound.Budget);
+        }
+
+        private void OnDestroy()
+        {
+            if (_bound != null)
+            {
+                _bound.OnBudgetChanged -= HandleChanged;
+                _bound = null;
+            }
+        }
+
+        private void HandleChanged(int current)
+        {
+            if (_text != null)
+                _text.text = $"₩ {current:N0}";
+        }
+    }
+}

Assets/02_Scripts/UI/WalletHud.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 59629d355895f5d48b2a59479440912f