public bool CanAddAsDemand(IDiplomaticExchange exchange)
{
if (exchange == null)
{
throw new ArgumentNullException("request");
}
return(!HasOverlap(exchange) && exchange.CanExecuteBetweenCivs(Receiver, Sender));
}
public bool CanAddAsBilateralExchange(IDiplomaticExchange exchange)
{
if (exchange == null)
{
throw new ArgumentNullException("exchange");
}
return(!HasOverlap(exchange) && exchange.CanExecuteBetweenCivs(Sender, Receiver));
}