public static int GenerateNewId(VisualTreeAsset vta, VisualElementAsset vea)
{
int parentHash;
if (!vea.HasParent())
{
parentHash = vta.GetHashCode();
}
else
{
parentHash = vea.parentId;
}
var guid = System.Guid.NewGuid().GetHashCode();
return((vta.GetNextChildSerialNumber() + 585386304) * -1521134295 + parentHash + guid);
}