namespace Misaki.AoVolume
{
    internal readonly struct VolumeEntity
    {
        private const int _INVALID_INDEX = -1;

        public readonly int entityIndex;
        public readonly bool IsValid => entityIndex != _INVALID_INDEX;

        public static readonly VolumeEntity InvalidEntity = new(_INVALID_INDEX);

        public VolumeEntity(int index)
        {
            entityIndex = index;
        }
    }
}