public AbstractState DoTransition(string stateToTransitionTo)
{
String stateValueKey = stateToTransitionTo.ToLower();
if (!AbstractState.valuesToStates.ContainsKey(stateValueKey))
{
throw new Exception(String.Format("{0} does not exist", stateValueKey));
}
AbstractState stateToCheckFor = AbstractState.valuesToStates[stateValueKey];
if (AbstractState.allowedTransitions.Exists(item => item.GetHashCode() == stateToCheckFor.GetHashCode()))
{
AbstractState.allowedTransitions.Remove(stateToCheckFor);
return(stateToCheckFor);
}
else
{
return(null);
}
}