internal TouchPanel(ScreenView screen)
{
this.screen = screen;
try
{
this.caps = XnaTouchPanel.GetCapabilities();
}
catch (TypeLoadException)
{
this.caps = new TouchPanelCapabilities();
}
this.touches = new List <Touch>(caps.MaximumTouchCount);
this.newTouches = new List <Touch>(caps.MaximumTouchCount);
}
public void UpdateGestures()
{
var samples = new List <Gesture>();
if (XnaTouchPanel.EnabledGestures == XnaGestureType.None)
{
return;
}
while (XnaTouchPanel.IsGestureAvailable)
{
samples.Add(new Gesture(XnaTouchPanel.ReadGesture()));
}
this.GestureListeners.UpdateChanges();
this.gestures = samples;
}
public void UpdateTouches()
{
var xnaTouches = XnaTouchPanel.GetState();
for (int i = 0; i < xnaTouches.Count; i++)
{
Touch prevTouch = touches.Find(s => s.Id == xnaTouches[i].Id);
Touch thisTouch = prevTouch != null ? prevTouch : new Touch(screen, xnaTouches[i]);
newTouches.Add(thisTouch);
DownListeners.ForEach(dl => dl.CheckAndInvoke(thisTouch));
if (prevTouch == null)
{
// New touch
PressListeners.ForEach(dl => dl.CheckAndInvoke(thisTouch));
}
else
{
// Existing touch
touches.Remove(thisTouch);
thisTouch.Update(xnaTouches[i]);
}
}
for (int i = 0; i < touches.Count; i++)
{
// Released touch
ReleaseListeners.ForEach(dl => dl.CheckAndInvoke(touches[i]));
}
DownListeners.UpdateChanges();
PressListeners.UpdateChanges();
ReleaseListeners.UpdateChanges();
touches.Clear();
var empty = touches;
touches = newTouches;
newTouches = empty;
}