using System.IO;

namespace NIFLib.Core
{
    public class NiRef<T> where T : NiObject
    {
        public T Object { get; private set; }

        public uint RefId { get; }

        public NiRef(uint refId)
        {
            RefId = refId;
        }

        public NiRef(BinaryReader reader) : this(reader.ReadUInt32()) { }

        public bool IsValid() => RefId != 0xFFFFFFFF;

        public void SetRef(NiFile file)
        {
            if (!IsValid()) return;
            Object = (T) file.ObjectsByRef[RefId];
        }
    }
}