重构

unity/Assets/Architecture/Variables/IntVariable.cs

@@ -0,0 +1,50 @@
+using UnityEngine;
+using System;
+
+namespace Architecture.Variables
+{
+    /// <summary>
+    /// 共享整数变量（ScriptableObject 资产）。常用于血量、得分、魂灵数等。
+    /// </summary>
+    [CreateAssetMenu(menuName = "Architecture/Variables/Int", fileName = "NewIntVariable")]
+    public class IntVariable : ScriptableObject, Architecture.IVariable
+    {
+        [SerializeField] private int _value;
+
+        [Tooltip("进入 Play Mode 时的初始值，由 VariableRegistry 在每次启动游戏时自动恢复，防止跨局状态泄漏")]
+        [SerializeField] private int _defaultValue;
+
+        public int Value
+        {
+            get => _value;
+            set
+            {
+                if (_value == value) return;
+                _value = value;
+                OnValueChanged?.Invoke(value);
+            }
+        }
+
+        public event Action<int> OnValueChanged;
+
+        public void SetValue(int value) => Value = value;
+        public void ApplyChange(int amount) => Value += amount;
+
+        /// <summary>将运行时值重置为 _defaultValue（每次进入 Play Mode 时由 VariableRegistry 自动调用）。</summary>
+        public void ResetToDefault()
+        {
+            _value = _defaultValue;
+            OnValueChanged?.Invoke(_value);
+        }
+
+        [ContextMenu("Reset To Default")]
+        public void Reset() => ResetToDefault();
+
+        private void OnEnable() => VariableRegistry.Register(this);
+        private void OnDisable()
+        {
+            VariableRegistry.Unregister(this);
+            OnValueChanged = null;
+        }
+    }
+}