/// <summary>
/// Condition of adding new chain in queue
/// </summary>
/// <returns>Return true if we can/should add new chain </returns>
private bool CheckToAdd()
{
if (!Chains.Any())
{
AddChain(new Chain());
}
var lastChain = Chains.Last();
return(lastChain.CurrentLocationHead - lastChain.WholeLenghtOfChain > 0);
}