/// <summary>
/// Adds the good type to this system
/// </summary>
/// <param name="goodId">The good type to add to this system.</param>
/// <param name="quantity">The quantity of the good to add.</param>
public virtual void AddGood(int goodId, int quantity)
{
Dictionary <string, object> props = new Dictionary <string, object>
{
{ "GoodId", goodId },
{ "Quantity", quantity },
{ "SystemId", this.SystemId }
};
Logger.Write("Adding Good to System in CosmoSystem.AddGood", "Model", 150, 0, TraceEventType.Verbose, "Adding Good to System", props);
CosmoMongerDbDataContext db = CosmoManager.GetDbContext();
SystemGood systemGood = this.GetGood(goodId);
if (systemGood == null)
{
// Add this new good type to the system
systemGood = new SystemGood();
systemGood.CosmoSystem = this;
systemGood.GoodId = goodId;
systemGood.PriceMultiplier = 1.0;
systemGood.Demand = SystemGood.DemandType.Average;
this.SystemGoods.Add(systemGood);
}
// Add the correct number of goods to the system
systemGood.Quantity += quantity;
// Save database changes
db.SaveChanges();
}
/// <summary>
/// Sells the specified quantity of goods off the ship.
/// </summary>
/// <param name="currentShip">The Ship object to use for this transaction.</param>
/// <param name="quantity">The quantity of goods to sell.</param>
/// <param name="price">The price of the goods to sell at. If 0 current price is used.</param>
/// <exception cref="ArgumentOutOfRangeException">
/// Thrown on quantity param when trying to sell more goods than avaiable on the ship.
/// Thrown on price param when asking price is different than the actual current price.
/// </exception>
/// <exception cref="InvalidOperationException">Thrown when the good is not bought in the current system.</exception>
public virtual void Sell(Ship currentShip, int quantity, int price)
{
// Check the the good is actually sold/bought in the current system
SystemGood sellingGood = this.Ship.CosmoSystem.GetGood(this.GoodId);
if (sellingGood == null)
{
throw new InvalidOperationException("This good is not sold/bought in the current system");
}
// Check that we are not trying to sell more goods than we have
if (this.Quantity < quantity)
{
throw new ArgumentOutOfRangeException("quantity", quantity, "Unable to sell more goods than aboard");
}
if (price > 0 && sellingGood.Price != price)
{
throw new ArgumentOutOfRangeException("price", price, "Asking price does not match current price");
}
// Calcuate how much we will make selling these goods
int profit = quantity * sellingGood.Price;
Dictionary <string, object> props = new Dictionary <string, object>
{
{ "ShipId", this.ShipId },
{ "GoodId", this.GoodId },
{ "Quantity", quantity },
{ "Price", price },
{ "Profit", profit }
};
Logger.Write("Selling goods in ShipGood.Sell", "Model", 500, 0, TraceEventType.Information, "Selling Goods", props);
CosmoMongerDbDataContext db = CosmoManager.GetDbContext();
// Transfer the good(s) to the system
sellingGood.Quantity += quantity;
// Commit changes to the database
db.SaveChanges();
// Remove good(s) from the ship
this.Quantity -= quantity;
if (this.Quantity == 0)
{
// TODO: Should we delete this object?
}
// Add to the ship credit account
currentShip.Credits += profit;
Player currentPlayer = currentShip.Players.SingleOrDefault();
if (currentPlayer != null)
{
// Update the player stats
currentPlayer.GoodsTraded += quantity;
}
// Commit changes to the database
db.SaveChanges();
}