/// <summary>
/// Selects an operator at random.
/// </summary>
/// <returns>The operator.</returns>
/// <param name="returnType">Return type of the operator.</param>
public static bool TrySelectOperatorAtRandom(
byte returnType,
out OperatorSignature signatureOut)
{
if (operatorList == null)
{
throw new InvalidOperationException("operatorList is null");
}
List <OperatorSignature> candidates = new List <OperatorSignature> ();
foreach (OperatorSignature signature in operatorList)
{
if (signature.ReturnType == returnType)
{
candidates.Add(signature);
}
}
if (candidates.Count == 0)
{
signatureOut = null;
return(false);
}
int index = CommonHelperMethods.GetRandomPositiveInt0ToValue(candidates.Count - 1);
signatureOut = candidates [index];
return(true);
}
/// <summary>
/// Adds the operator.
/// </summary>
/// <param name="signature">Signature.</param>
public static void AddOperator(byte value, byte returnTypeIn, byte lhsTypeIn, byte rhsTypeIn)
{
OperatorSignature signature = new OperatorSignature(value, returnTypeIn, lhsTypeIn, rhsTypeIn);
operatorList.Add(signature);
}