ValueGenerator CreateValueGenerator(XElement settingElement, SettingLimits settingLimits = null)
{
ValueGenerator outValueGenerator = null;
bool hasCreatedValueGenerator = false;
//Iterate through all elements.
IEnumerable <XElement> elements = settingElement.Elements();
foreach (XElement element in elements)
{
//Warn about more than one value element.
if (hasCreatedValueGenerator)
{
_errorCollection.AddInvalidElement(element);
continue;
}
//Handle value element.
ValueGeneratorTypes valueGeneratorType;
if (Enum.TryParse <ValueGeneratorTypes>(element.Name.LocalName, out valueGeneratorType))
{
switch (valueGeneratorType)
{
case ValueGeneratorTypes.Null:
outValueGenerator = null;
break;
case ValueGeneratorTypes.Constant:
outValueGenerator = CreateConstantValueGenerator(element);
break;
case ValueGeneratorTypes.Range:
outValueGenerator = CreateRangeValueGenerator(element);
break;
case ValueGeneratorTypes.Boolean:
outValueGenerator = CreateBooleanValueGenerator(element);
break;
case ValueGeneratorTypes.CoinFlip:
outValueGenerator = CreateCoinFlipValueGenerator(element);
break;
case ValueGeneratorTypes.WeightedSelector:
outValueGenerator = CreateWeightedSelectorValueGenerator(element, settingLimits);
break;
default:
_errorCollection.AddInvalidElement(element);
break;
}
hasCreatedValueGenerator = outValueGenerator != null || valueGeneratorType == ValueGeneratorTypes.Null;
if (outValueGenerator != null && settingLimits != null && !outValueGenerator.IsValueRangeWithinLimits(settingLimits))
{
_errorCollection.AddSettingOutsideLimits(element, settingLimits);
}
}
//Invalid element.
else
{
_errorCollection.AddInvalidElement(element);
}
}
return(outValueGenerator);
}