public override WorldDescriptionRecord GetWorldDescriptionRecord()
{
string errorString;
string expressionEffect = "";
if (ParseAction(ComboBoxAction.SelectedIndex, out errorString) &&
ParseExpression(TextBoxFormEffect.Text, out expressionEffect, out errorString))
{
//allow empty ifExpresion
string expressionIf = "";
ParseExpression(TextBoxFormIf.Text, out expressionIf, out errorString);
var wdr = new ActionCausesIfRecord(this.SelectedAction, expressionEffect, expressionIf);
CleanValues();
return(wdr);
}
LabelValidation.Content = errorString;
throw new TypeLoadException("Validation error");
}
private IEnumerable <State> GetPossibleFutureStates(WorldAction worldAction, State state, int time)
{
var possibleFutureStates = new List <State>();
// Get released fluents
var releasedFluents = GetReleasedFluents(worldAction, state, time);
// Get possible state changes from ActionCausesIf records
var actionCausesRec = Descriptions.Where(t => t.Item1 == WorldDescriptionRecordType.ActionCausesIf)
.Select(t => t.Item2 as ActionCausesIfRecord).ToList();
ActionCausesIfRecord causedStatesX = null;
try
{
causedStatesX = actionCausesRec.Where(t => t.IsFulfilled(state, worldAction)).Aggregate((x, y) => x.Concat(y));
}
catch (InvalidOperationException)
{
return(new List <State>()
{
state
});
}
var causedStates = causedStatesX.GetResult();
var possibleStateChanges = new List <State>(causedStates.Select(t => new State {
Fluents = t.ToList()
}));
// Get all future states excluding released fluents changes
foreach (var stateChange in possibleStateChanges)
{
var template = (State)state.Clone();
template.Fluents.RemoveAll(t => stateChange.Fluents.Any(x => x.Name == t.Name));
template.Fluents.AddRange(stateChange.Fluents);
possibleFutureStates.Add(template);
}
// Include released fluents
foreach (var fluent in releasedFluents)
{
var statesToAdd = new List <State>();
foreach (var futureState in possibleFutureStates)
{
var copy = (State)futureState.Clone();
var fluentToRelease = copy.Fluents.First(t => t.Name == fluent.Name);
fluentToRelease.Value = !fluentToRelease.Value;
statesToAdd.Add(copy);
}
possibleFutureStates.AddRange(statesToAdd);
}
if (possibleFutureStates.Count == 0)
{
possibleFutureStates = new List <State>()
{
state
};
}
return(possibleFutureStates);
}