add basic hero party

Assets/Scriptables/HeroParty.asset

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Assets/Scripts/HeroPartySO.cs

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+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using UnityEngine;
+
+[CreateAssetMenu(fileName = "HeroParty", menuName = "Hero Party")]
+public class HeroPartySO : ScriptableObject
+{
+    [SerializeField]
+    private List<HeroUnit> unitList = new List<HeroUnit>();
+    public ReadOnlyCollection<HeroUnit> UnitList => unitList.AsReadOnly();
+
+    public void Add(HeroUnit unit) { unitList.Add(unit); }
+    public void Remove(HeroUnit unit) { unitList.Remove(unit); }
+}

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