/// <summary>
/// Set an image source for a specific wheel symbol.
/// Trying to set the image source twice for the same
/// symbol will cause an exception.
/// </summary>
protected void SetImageSource(Types.Enums.WheelSymbol symbol, string imageSource)
{
if (_imageSources.ContainsKey(symbol))
{
throw new ArgumentException(nameof(SetImageSource));
}
_imageSources.Add(symbol, imageSource);
}
/// <summary>
/// Retrieves the image source corresponding to the
/// specified wheel symbol.
/// Trying to retrieve the source for a wheel symbol for which
/// no source has been specificed will cause an exception.
/// </summary>
public string GetImageSource(Types.Enums.WheelSymbol symbol)
{
if (_imageSources.ContainsKey(symbol))
{
return(_imageSources[symbol]);
}
throw new ArgumentException(nameof(GetImageSource));
}
/// <summary>
/// Retrieves the probability for generating the specified symbol.
/// An exception is thrown if the probability for the specified
/// wheel symbol is not set.
/// </summary>
public int GetProbability(Types.Enums.WheelSymbol symbol)
{
if (!_probabilitySettings.ContainsKey(symbol))
{
throw new ArgumentException(nameof(GetProbability));
}
return(_probabilitySettings[symbol]);
}
/// <summary>
/// Set the probability for generating the specified symbol.
/// An exception is thrown if the probability percentage is out-of-range.
/// Note that updating a probability will affect other probabilities,
/// since the sum of probability percentages is kept constant at 100.
/// </summary>
public void SetProbability(Types.Enums.WheelSymbol symbol, int percentage)
{
if (percentage < 0 || percentage > 100)
{
throw new ArgumentException(nameof(SetProbability));
}
SetProbabilityAndKeepConsistent(symbol, percentage);
OnPropertyChanged(nameof(ProbabilitySettings));
}
/// <summary>
/// Updates the specified probability, and adjusts other probabilities
/// such that the sum of probability percentages is kept constant at 100.
/// </summary>
private void SetProbabilityAndKeepConsistent(Types.Enums.WheelSymbol symbolChanged, int percentage)
{
int change = percentage - _probabilitySettings[symbolChanged];
_probabilitySettings[symbolChanged] = percentage;
// Adjust other probabilities with a total of "change"
foreach (Types.Enums.WheelSymbol symbol in Enum.GetValues(typeof(Types.Enums.WheelSymbol)))
{
if (symbol != symbolChanged && change != 0)
{
// Can we CHANGE probability for this symbol with the full change?
int potentialNewProb = _probabilitySettings[symbol] - change;
if (potentialNewProb <= 100 && potentialNewProb >= 0)
{
_probabilitySettings[symbol] = potentialNewProb;
change = 0;
}
else
{
// We actually decreased, so INCREASE probability for this symbol up to 100
if (change < 0 && _probabilitySettings[symbol] < 100)
{
change = change + (100 - _probabilitySettings[symbol]);
_probabilitySettings[symbol] = 100;
}
// We actually increased, so DECREASE probability for this symbol down to 0
if (change > 0 && _probabilitySettings[symbol] > 0)
{
change = change - _probabilitySettings[symbol];
_probabilitySettings[symbol] = 0;
}
}
}
}
}
public int InitialWinnings(Types.Enums.WheelSymbol symbol, int noOfSymbols)
{
return(_initialSettings.InitialWinnings(symbol, noOfSymbols));
}
public int InitialProbability(Types.Enums.WheelSymbol symbol)
{
return(_initialSettings.InitialProbability(symbol));
}