public override void Execute(params string[] commandParams)
{
ICity city = this.Engine.Continent.GetCityByName(commandParams[1]);
if (city == null)
{
throw new ArgumentNullException("city");
}
IArmyStructure structure = this.Engine.ArmyStructureFactory.CreateStructure(commandParams[0]);
if (city.CityType < structure.RequiredCityType)
{
throw new InsufficientCitySizeException("Structure requires a more advanced city");
}
if (city.ControllingHouse.TreasuryAmount < structure.BuildCost)
{
throw new InsufficientFundsException(
String.Format("House {0} doesn't have sufficient funds to build {1}", city.ControllingHouse.Name, structure.GetType().Name));
}
city.ControllingHouse.TreasuryAmount -= structure.BuildCost;
city.AddArmyStructure(structure);
this.Engine.Render("Successfully built {0} in {1}", structure.GetType().Name, city.Name);
}