private void Update(List <TouchLocation> touches, ref TouchLocation?touch)
{
foreach (var touchLocation in touches)
{
if (touchLocation.Id == Id)
{
touch = touchLocation;
break;
}
TouchLocation earliestTouchLocation;
if (!touchLocation.TryGetPreviousLocation(out earliestTouchLocation))
{
earliestTouchLocation = touchLocation;
}
if (Id == -1)
{
if (TouchArea.Contains(earliestTouchLocation.Position.ToPoint()))
{
touch = earliestTouchLocation;
break;
}
}
}
if (touch.HasValue)
{
Id = touch.Value.Id;
}
else
{
Id = -1;
}
}
public bool GetBooleanValue(List <TouchLocation> touches)
{
TouchLocation?touch = null;
Update(touches, ref touch);
bool result = false;
if (!touch.HasValue)
{
result = false;
}
else if (touch.Value.State == TouchLocationState.Pressed)
{
result = true;
}
else if (touch.Value.State == TouchLocationState.Moved)
{
result = TouchArea.Contains(touch.Value.Position.ToPoint());
}
return(result);
}