/// <summary>
/// Execute a sale
/// </summary>
/// <param name="item">the item in question</param>
/// <param name="price">the sale price</param>
/// <returns>error or blank</returns>
public string Instruct(IMobile customer, string qualityName, int level, int price)
{
string returnString = string.Empty;
if (customer == null)
{
return("Invalid customer");
}
IQuality quality = TeachableProficencies.FirstOrDefault(qual => qual.Name.Equals(qualityName, StringComparison.InvariantCultureIgnoreCase) && qual.Value > level);
if (quality == null)
{
return("I can't teach that proficency to you.");
}
int customerWallet = customer.GetQuality("Bells");
if (customerWallet < price)
{
return("Insufficient Funds.");
}
customer.SetQuality(-1 * price, "Bells", true);
customer.SetQuality(1, quality.Name, true);
return(returnString);
}
/// <summary>
/// Price check on teaching qualities
/// </summary>
/// <param name="name">The name of the quality</param>
/// <param name="level">The level to teach to</param>
/// <returns>the price, -1 indicates it wont be taught</returns>
public int InstructionPriceCheck(string qualityName, int level)
{
decimal value = -1;
IQuality quality = TeachableProficencies.FirstOrDefault(qual => qual.Name.Equals(qualityName, StringComparison.InvariantCultureIgnoreCase) && qual.Value > level);
//If we need it in stock but don't have it it's sell price is invalid
if (quality != null)
{
value = 5; //base price, needs to be a config TODO
value *= level;
}
return((int)Math.Truncate(value));
}
/// <summary>
/// Indicates whether this is actually a merchant or not who sells things
/// </summary>
/// <returns>if they sell things (but not if they have stock)</returns>
public bool DoITeachThings()
{
return(TeachableProficencies != null && TeachableProficencies.Count() > 0);
}
