private void Raycast3DScene()
{
Ray rayGaze = Camera.main.ScreenPointToRay(SMIGazeController.Instance.GetSample().averagedEye.gazePosInUnityScreenCoords());
RaycastHit hit;
//Raycast from the Gazeposition on the Screen
if (Physics.Raycast(rayGaze, out hit))
{
GazeSelectableItem item = hit.collider.gameObject.GetComponent <GazeSelectableItem>();
if (item != null)
{
if (oldSelection == null)
{
oldSelection = hit.collider.gameObject;
}
else if (hit.collider.gameObject != oldSelection)
{
oldSelection.GetComponent <GazeSelectableItem>().OnGazeExit();
oldSelection = hit.collider.gameObject;
}
oldSelection.GetComponent <GazeSelectableItem>().OnGazeEnter(selectedScaleFactor);
}
else
{
if (oldSelection != null)
{
oldSelection.GetComponent <GazeSelectableItem>().OnGazeExit();
oldSelection = null;
}
}
}
// no result --> Check if there is an older Selection saved
else
{
if (oldSelection != null)
{
oldSelection.GetComponent <GazeSelectableItem>().OnGazeExit();
oldSelection = null;
}
}
}
private void RayCastFromGazeTo2DCanvas()
{
//Create A PointerEvent for a Screenspace Canvas
PointerEventData pointer = new PointerEventData(EventSystem.current);
pointer.position = SMIGazeController.Instance.GetSample().averagedEye.gazePosInUnityScreenCoords();
//Safe the Raycast
var raycastResults = new List <RaycastResult>();
EventSystem.current.RaycastAll(pointer, raycastResults);
if (raycastResults.Count > 0)
{
if (oldSelection == null)
{
oldSelection = raycastResults[0].gameObject.GetComponent <GazeSelectableItem>();
}
else if (raycastResults[0].gameObject != oldSelection)
{
oldSelection.GetComponent <GazeSelectableItem>().OnGazeExit();
oldSelection = raycastResults[0].gameObject.GetComponent <GazeSelectableItem>();
}
GazeSelectableItem item = raycastResults[0].gameObject.GetComponent <GazeSelectableItem>();
if (item)
{
item.OnGazeEnter(selectedScaleFactor);
}
}
else
{
if (oldSelection != null)
{
oldSelection.GetComponent <GazeSelectableItem>().OnGazeExit();
oldSelection = null;
}
}
}
