코드 리팩토링

재사용성 및 확장성을 고려하여 코드 전반을 리팩토링함

Assets/Scripts/Items/ItemBehavior.cs

@@ -0,0 +1,67 @@
+using UnityEngine;
+
+/// <summary>
+/// Base class for item behaviors. Allows different items to have
+/// completely different use effects without modifying ItemData.
+/// This is the Strategy pattern for item actions.
+/// </summary>
+public abstract class ItemBehavior : ScriptableObject
+{
+    [Header("Basic Settings")]
+    [SerializeField] protected string behaviorName = "Use";
+    [SerializeField] protected float duration = 0.5f;
+    [SerializeField] protected string animTrigger = "Use";
+    [SerializeField] protected float animSpeed = 1f;
+    [SerializeField] protected float impactDelay = 0.2f;
+    [SerializeField] protected bool canRepeat = false;
+
+    [Header("Effects")]
+    [SerializeField] protected AudioClip useSound;
+    [SerializeField] protected GameObject useEffect;
+
+    /// <summary>
+    /// Whether this behavior consumes the item when used.
+    /// </summary>
+    public virtual bool IsConsumable => false;
+
+    /// <summary>
+    /// Check if this behavior can be used with the given user and target.
+    /// </summary>
+    /// <param name="user">The player/entity using the item</param>
+    /// <param name="target">Optional target of the use</param>
+    /// <returns>True if the behavior can be executed</returns>
+    public abstract bool CanUse(GameObject user, GameObject target);
+
+    /// <summary>
+    /// Execute the behavior's effect.
+    /// </summary>
+    /// <param name="user">The player/entity using the item</param>
+    /// <param name="target">Optional target of the use</param>
+    public abstract void Use(GameObject user, GameObject target);
+
+    /// <summary>
+    /// Get the action descriptor for this behavior.
+    /// </summary>
+    public virtual ActionDescriptor GetActionDescriptor()
+    {
+        return new ActionDescriptor
+        {
+            ActionName = behaviorName,
+            Duration = duration,
+            AnimTrigger = animTrigger,
+            AnimSpeed = animSpeed,
+            ImpactDelay = impactDelay,
+            CanRepeat = canRepeat,
+            SoundEffect = useSound,
+            ParticleEffect = useEffect
+        };
+    }
+
+    /// <summary>
+    /// Get a description of why the behavior cannot be used.
+    /// </summary>
+    public virtual string GetBlockedReason(GameObject user, GameObject target)
+    {
+        return null;
+    }
+}