// Update is called once per frame
void Update()
{
if (g_ButtonManager.g_InitCameraButtonClicked)
{
g_JsonManager.createReInitCamera();
g_ButtonManager.g_InitCameraButtonClicked = false;
}
if (g_ButtonManager.g_ShowUltrasoundButtonClicked)
{
UltrasoundButtonClicked = true;
g_ButtonManager.g_ShowUltrasoundButtonClicked = false;
}
try
{
// Verify that there was a touch event
if (EventSystem.current != null && Input.touchCount > 0)
{
Touch[] myTouches = Input.touches;
Vector3 touchedPoint3D = new Vector3(myTouches[0].position.x, myTouches[0].position.y, 0.0f);
//Raycasting to see if the UI was hit from the camera perspective
PointerEventData pointer = new PointerEventData(EventSystem.current);
pointer.position = new Vector2(touchedPoint3D[0], touchedPoint3D[1]);
List <RaycastResult> raycastResults = new List <RaycastResult>();
EventSystem.current.RaycastAll(pointer, raycastResults);
// The touch was performed on an element that was part of the UI (and if pixel is not transparent)
if (raycastResults.Count > 0)
{
// The touch was performed in one of the Icon annotations
if (raycastResults[0].gameObject.transform.parent.gameObject.name == "IconAnnotationsContainer")
{
// Single touch interactions
if (Input.touchCount == 1)
{
if (!isPixelTransparent(raycastResults) && !isUserLineAnnotating)
{
performIconUniFingerInteraction(myTouches, raycastResults);
}
else
{
performLineUniFingerInteraction(myTouches, touchedPoint3D);
}
}
// Multi finger touch performed over an icon annotation
// This could just be an else, but we are leaving it open in case of "more-than-two-touch-points" interactions
else if (Input.touchCount == 2)
{
if (!isPixelTransparent(raycastResults))
{
performIconMultiFingerInteraction(myTouches, raycastResults);
}
else
{
performBackgroundMultiFingerInteraction(myTouches, touchedPoint3D);
}
}
}
// UI Interaction. The bulk of these functions is at the ButtonClicking module
else
{
if (g_SelectedElementTransform != null)
{
// Deselect other buttons in the panel that might have been pressed
g_ButtonManager.SetObjectForColorChange(false, g_SelectedElementTransform);
}
}
}
// Touch interaction on the background image
else
{
// Single touch interaction. These are performed to create line annotations
if (Input.touchCount == 1)
{
if (!isUserIconAnnotating)
{
performLineUniFingerInteraction(myTouches, touchedPoint3D);
}
else
{
performIconUniFingerInteraction(myTouches, raycastResults);
}
}
// Multi touch interaction. These are performed to zoom the background image
// This could just be an else, but we are leaving it open in case of "more-than-two-touch-points" interactions
else if (Input.touchCount == 2)
{
if (isUserIconAnnotating)
{
performIconMultiFingerInteraction(myTouches, raycastResults);
}
else
{
performBackgroundMultiFingerInteraction(myTouches, touchedPoint3D);
}
}
}
}
}
catch (Exception e)
{
Debug.Log(e.Message);
}
}