public IActivity <PhysicalActor>?Interpret(IVerbalAI <PhysicalActor> ai, string input)
{
var lookupTable = Parser.Match(input);
if (lookupTable == null)
{
return(null);
}
return(BuildActivity(ai, lookupTable));
}
protected override IActivity <PhysicalActor>?BuildActivity(IVerbalAI <PhysicalActor> ai, Dictionary <string, string> lookup)
{
List <GameObject> targets = ai.ObjectsWithName(lookup["TARGET"]).ToList();
if (targets.Count == 0)
{
return(new AutoFailAction <PhysicalActor>(
ai.Actor,
new FailedOutcome($"There is no {lookup["TARGET"]} here")
));
}
List <TAction>?activities = null;
List <TAction>?validActivities = null;
while (validActivities == null || validActivities.Count > 1)
{
IEnumerable <TAction> query =
from target in targets
select new TAction
{
Actor = ai.Actor,
Target = target,
};
activities = new List <TAction>(query);
validActivities = activities.Where(x => x.IsValid()).ToList();
IEnumerable <GameObject> validTargets = from act in validActivities select act.Target;
var uniqueTargets = new HashSet <GameObject>(validTargets);
if (uniqueTargets.Count > 1)
{
GameObject?definiteTarget = ai.ChooseObject(lookup["TARGET"], uniqueTargets);
if (definiteTarget == null)
{
targets = new List <GameObject>(); // empty
}
else
{
targets = new List <GameObject>()
{
definiteTarget
};
}
}
}
// activities cannot be null here, because the above loop only exits if it is non-null
if (activities !.Count == 0)
{
return(null);
}
protected override IActivity <PhysicalActor> BuildActivity(IVerbalAI <PhysicalActor> ai, Dictionary <string, string> lookup)
{
return(new TAction {
Actor = ai.Actor
});
}
protected abstract IActivity <PhysicalActor>?BuildActivity(IVerbalAI <PhysicalActor> ai, Dictionary <string, string> lookup);
