void Update()
{
AssignTouches();
//compare _touchCache to latest touches
foreach (Touch t in touches)
{
if (!_touchCache.Exists(x => x.fingerId == t.fingerId))
{
_touchCache.Add(new TouchInstance(t));
_touchCache.OrderBy(x => x.fingerId);
}
}
//update TouchInstances in reverse
//so they can remove themselves when finished
if (_touchCache.Count > 0)
{
for (int i = _touchCache.Count - 1; i >= 0; i--)
{
_touchCache[i].Update();
}
}
Pinch.Update();
}
/// <summary>
/// get all the current tap gestures
/// </summary>
private void GetGestures()
{
//go through the taps and get all the new ones
while (TouchPanel.IsGestureAvailable)
{
GestureSample gesture = TouchPanel.ReadGesture();
switch (gesture.GestureType)
{
case GestureType.Tap:
{
var position = ConvertCoordinate(gesture.Position);
Clicks.Add(new ClickEventArgs()
{
Position = position,
Button = MouseButton.Left
});
}
break;
case GestureType.DoubleTap:
{
var position = ConvertCoordinate(gesture.Position);
Clicks.Add(new ClickEventArgs()
{
Position = position,
Button = MouseButton.Left,
DoubleClick = true,
});
}
break;
case GestureType.Flick:
{
AddFlickEvent(gesture.Delta);
}
break;
case GestureType.Pinch:
{
var position1 = ConvertCoordinate(gesture.Position);
var position2 = ConvertCoordinate(gesture.Position2);
if (null == Pinch)
{
Pinch = new PinchManager(position1, position2);
}
else
{
Pinch.Update(position1, position2);
}
}
break;
case GestureType.PinchComplete:
{
if (null == Pinch)
{
Pinch = new PinchManager()
{
Finished = true
};
}
else
{
Pinch.Finished = true;
}
}
break;
case GestureType.Hold:
{
var position = ConvertCoordinate(gesture.Position);
Holds.Add(new HoldEventArgs()
{
Position = position
});
}
break;
}
}
}
