/// <summary>
/// Handle new point users place
/// </summary>
public void AddPoint()
{
if (CurrentPolygon == null || CurrentPolygon.IsFinished)
{
CurrentPolygon = CreateNewPolygon();
}
var hitPoint = GazeManager.Instance.HitPosition;
var point = Instantiate(PointPrefab, hitPoint, Quaternion.identity);
point.SetRootPolygon(CurrentPolygon);
CurrentPolygon.Points.Add(point);
// create a line when we have more than one point
if (CurrentPolygon.Points.Count > 1)
{
// determine the position and direction of the line
var index = CurrentPolygon.Points.Count - 1;
var line = Instantiate(LinePrefab);
line.SetPoints(CurrentPolygon.Points[index - 1], CurrentPolygon.Points[index]);
line.SetRootPolygon(CurrentPolygon);
// connect the line from the previous point to the current point
CurrentPolygon.Points[index - 1].OutgoingEdge = line;
point.IngoingEdge = line;
//disable gazeObject component on last point so it is always only on last point
GazeScaler pointGazeScaler = CurrentPolygon.Points[index - 1].GetComponent <GazeScaler>();
if (pointGazeScaler)
{
pointGazeScaler.enabled = false;
}
}
}
private void deletePoint()
{
// if the polygon is in edit mode and this point is the last point created
if (PolygonManager.Instance.CurrentPolygon == m_RootPolygon && !m_RootPolygon.IsFinished && m_RootPolygon.Points[m_RootPolygon.Points.Count - 1] == this)
{
if (m_RootPolygon.Points.Count == 1)
{
Destroy(gameObject);
return;
}
// first clear the references in the polygon
PolygonPoint previousPoint;
if (IngoingEdge.From == this)
{
previousPoint = IngoingEdge.To;
}
else
{
previousPoint = IngoingEdge.From;
}
previousPoint.OutgoingEdge = null;
m_RootPolygon.Points.Remove(this);
// then destroy the actual gameObjects
if (IngoingEdge)
{
Destroy(IngoingEdge.gameObject);
}
if (OutgoingEdge)
{
Destroy(OutgoingEdge.gameObject);
}
// enable gazeObject component on previous point again, as this is the new last point
GazeScaler pointGazeScaler = previousPoint.GetComponent <GazeScaler>();
if (pointGazeScaler)
{
pointGazeScaler.enabled = true;
}
base.OnFocusExit();
Destroy(gameObject);
}
}