private void Update()
{
// if there are no touch to be processed, just ignore the following instructions
if (Input.touchCount <= 0)
{
return;
}
// loop through each touch and process it according to its phase
foreach (Touch touch in Input.touches)
{
if (touch.phase == TouchPhase.Began)
{
// If this touch is on UI elements or PhysicsRaycaster targets, mark as invalid
if (EventSystem.current.IsPointerOverGameObject(touch.fingerId))
{
SetTouchState(touch.fingerId, TouchState.Invalid);
}
else // if not, we can mark it as a valid touch
{
SetTouchState(touch.fingerId, TouchState.Valid);
}
}
else if (touch.phase == TouchPhase.Ended || touch.phase == TouchPhase.Canceled)
{
if (IsTouchInDictionaryInvalid(touch.fingerId))
{
continue;
}
bool isTouchMoved = (touchStateDictionary[touch.fingerId] == TouchState.Moved);
// this touch leaves screen, so set it to invalid
// need to do this after assigning isTouchMoved, otherwise it'll be corrupted
touchStateDictionary[touch.fingerId] = TouchState.Invalid;
if (OnTouchEnded != null)
{
EndedTouchEventArgs eventArgs = new EndedTouchEventArgs(isTouchMoved, touch.position);
OnTouchEnded.Invoke(this, eventArgs);
}
}
else if (touch.phase == TouchPhase.Moved)
{
// if this touch is invalid, don't reset it to moved
if (IsTouchInDictionaryInvalid(touch.fingerId))
{
continue;
}
touchStateDictionary[touch.fingerId] = TouchState.Moved;
if (OnTouchMoving != null)
{
MotionEventArgs eventArgs = new MotionEventArgs(touch.deltaPosition);
OnTouchMoving.Invoke(this, eventArgs);
}
}
}
}
private void OnTouchEnded(Object sender, EndedTouchEventArgs eventArgs)
{
if (eventArgs.isTouchMoved)
{
return;
}
// fire a ray and restart scanner
m_scanningEffect.ResetOriginByCameraRay(eventArgs.position);
}
