private void ClearFocusedObjectIfOld()
{
if (!_focusedObject.IsRecentlyHit())
{
_focusedObject = ScoredObject.Empty();
}
}
public void RemoveObject(GameObject gameObject)
{
_scoredObjects.Remove(gameObject.GetInstanceID());
if (_focusedObject.GameObject.GetInstanceID() == gameObject.GetInstanceID())
{
_focusedObject = ScoredObject.Empty();
}
}
public FocusedObject GetFocusedObject(IEnumerable <GazePoint> lastGazePoints, Camera camera)
{
var objectsInGaze = FindObjectsInGaze(lastGazePoints, camera);
UpdateFocusConfidenceScore(objectsInGaze);
var focusChallenger = FindFocusChallenger();
if (focusChallenger.GetScore()
> _focusedObject.GetScore() + Threshold)
{
_focusedObject = focusChallenger;
}
return(FocusedGameObject);
}
public FocusedObject GetFocusedObject(IEnumerable <GazePoint> lastGazePoints, Camera camera)
{
var gazePoints = lastGazePoints.Where(gazePoint => gazePoint.IsWithinScreenBounds);
foreach (var gazePoint in gazePoints)
{
var objectsInGaze = FindObjectsInGaze(gazePoint.Screen, camera);
UpdateFocusConfidenceScore(objectsInGaze);
}
var focusChallenger = FindFocusChallenger();
if (focusChallenger.GetScore() > _focusedObject.GetScore() + Threshold)
{
_focusedObject = focusChallenger;
}
return(FocusedGameObject);
}
private ScoredObject FindFocusChallenger()
{
ScoredObject topFocusChallenger = ScoredObject.Empty();
float topScore = 0.0f;
foreach (var key in _scoredObjects.Keys)
{
ScoredObject scoredObject = _scoredObjects[key];
var score = scoredObject.GetScore(Time.time - LoseGazeDwellTime, Time.time - GainGazeDwellTime);
if (score > topScore)
{
topScore = score;
topFocusChallenger = scoredObject;
}
}
return(topFocusChallenger);
}
private void UpdateFocusConfidenceScore(IEnumerable <GameObject> objectsInGaze)
{
foreach (var objectInGaze in objectsInGaze)
{
var instanceId = objectInGaze.GetInstanceID();
if (!_scoredObjects.ContainsKey(instanceId))
{
if (!GazeFocus.IsFocusableObject(objectInGaze))
{
continue;
}
_scoredObjects.Add(objectInGaze.GetInstanceID(), new ScoredObject(objectInGaze, GainGazeDwellTime, LoseGazeDwellTime));
}
ScoredObject hitObject = _scoredObjects[instanceId];
hitObject.AddHit(Time.time, Time.deltaTime);
}
ClearFocusedObjectIfOld();
}
public bool Equals(ScoredObject otherObject)
{
return(GameObject.GetInstanceID() == otherObject.GameObject.GetInstanceID());
}
public void Reset()
{
_scoredObjects.Clear();
_focusedObject = ScoredObject.Empty();
}