public override void Process()
{
foreach (var pair in _controllerData)
{
IUILaserPointer controller = pair.Key;
ControllerData data = pair.Value;
// Test if UICamera is looking at a GUI element
UpdateCameraPosition(controller);
if (data.pointerEvent == null)
{
data.pointerEvent = new PointerEventData(eventSystem);
}
else
{
data.pointerEvent.Reset();
}
data.pointerEvent.delta = Vector2.zero;
data.pointerEvent.position = new Vector2(UICamera.pixelWidth * 0.5f, UICamera.pixelHeight * 0.5f);
//data.pointerEvent.scrollDelta = Vector2.zero;
// trigger a raycast
eventSystem.RaycastAll(data.pointerEvent, m_RaycastResultCache);
data.pointerEvent.pointerCurrentRaycast = FindFirstRaycast(m_RaycastResultCache);
m_RaycastResultCache.Clear();
// make sure our controller knows about the raycast result
// we add 0.01 because that is the near plane distance of our camera and we want the correct distance
if (data.pointerEvent.pointerCurrentRaycast.distance > 0.0f)
{
controller.LimitLaserDistance(data.pointerEvent.pointerCurrentRaycast.distance + 0.01f);
}
// stop if no UI element was hit
//if(pointerEvent.pointerCurrentRaycast.gameObject == null)
//return;
// Send control enter and exit events to our controller
var hitControl = data.pointerEvent.pointerCurrentRaycast.gameObject;
if (data.currentPoint != hitControl)
{
if (data.currentPoint != null)
{
controller.OnExitControl(data.currentPoint);
}
if (hitControl != null)
{
controller.OnEnterControl(hitControl);
}
}
data.currentPoint = hitControl;
// Handle enter and exit events on the GUI controlls that are hit
base.HandlePointerExitAndEnter(data.pointerEvent, data.currentPoint);
if (controller.ButtonDown())
{
ClearSelection();
data.pointerEvent.pressPosition = data.pointerEvent.position;
data.pointerEvent.pointerPressRaycast = data.pointerEvent.pointerCurrentRaycast;
data.pointerEvent.pointerPress = null;
// update current pressed if the curser is over an element
if (data.currentPoint != null)
{
data.currentPressed = data.currentPoint;
GameObject newPressed = ExecuteEvents.ExecuteHierarchy(data.currentPressed, data.pointerEvent, ExecuteEvents.pointerDownHandler);
if (newPressed == null)
{
// some UI elements might only have click handler and not pointer down handler
newPressed = ExecuteEvents.ExecuteHierarchy(data.currentPressed, data.pointerEvent, ExecuteEvents.pointerClickHandler);
if (newPressed != null)
{
data.currentPressed = newPressed;
}
}
else
{
data.currentPressed = newPressed;
// we want to do click on button down at same time, unlike regular mouse processing
// which does click when mouse goes up over same object it went down on
// reason to do this is head tracking might be jittery and this makes it easier to click buttons
ExecuteEvents.Execute(newPressed, data.pointerEvent, ExecuteEvents.pointerClickHandler);
}
if (newPressed != null)
{
data.pointerEvent.pointerPress = newPressed;
data.currentPressed = newPressed;
Select(data.currentPressed);
}
ExecuteEvents.Execute(data.currentPressed, data.pointerEvent, ExecuteEvents.beginDragHandler);
data.pointerEvent.pointerDrag = data.currentPressed;
data.currentDragging = data.currentPressed;
}
} // button down end
if (controller.ButtonUp())
{
if (data.currentDragging != null)
{
ExecuteEvents.Execute(data.currentDragging, data.pointerEvent, ExecuteEvents.endDragHandler);
if (data.currentPoint != null)
{
ExecuteEvents.ExecuteHierarchy(data.currentPoint, data.pointerEvent, ExecuteEvents.dropHandler);
}
data.pointerEvent.pointerDrag = null;
data.currentDragging = null;
}
if (data.currentPressed)
{
ExecuteEvents.Execute(data.currentPressed, data.pointerEvent, ExecuteEvents.pointerUpHandler);
data.pointerEvent.rawPointerPress = null;
data.pointerEvent.pointerPress = null;
data.currentPressed = null;
}
}
// drag handling
if (data.currentDragging != null)
{
ExecuteEvents.Execute(data.currentDragging, data.pointerEvent, ExecuteEvents.dragHandler);
}
// update selected element for keyboard focus
if (base.eventSystem.currentSelectedGameObject != null)
{
ExecuteEvents.Execute(eventSystem.currentSelectedGameObject, GetBaseEventData(), ExecuteEvents.updateSelectedHandler);
}
}
}
public void RemoveController(IUILaserPointer controller)
{
_controllerData.Remove(controller);
}
protected void UpdateCameraPosition(IUILaserPointer controller)
{
UICamera.transform.position = controller.transform.position;
UICamera.transform.rotation = controller.transform.rotation;
}
public void AddController(IUILaserPointer controller)
{
_controllerData.Add(controller, new ControllerData());
}
