public override void update_touch(
bool pressed,
bool triggered,
bool released,
Vector2 pressLoc,
Vector2 releasedLoc)
{
InputStates state = InputStates.None;
if (pressed)
{
state |= Services.Input.InputStates.Pressed;
if (triggered)
{
state |= Services.Input.InputStates.Triggered;
}
}
else if (released)
{
state |= Services.Input.InputStates.Released;
}
if (TouchState.HasEnumFlag(InputStates.InputConsumed))
{
// @Debug: Because this waits until the input is none, an input
// consumed on a trigger will stay consumed if released on the next
// frame, and on the frame after that if pressed again
// Basically pressing and releasing a button every 2 ticks
// is impossible
if (state != InputStates.None)
{
state |= InputStates.InputConsumed;
}
}
TouchState = state;
if (triggered)
{
TouchTriggerPosition = pressLoc;
TouchPressOutsideTolerance = false;
}
TouchPressPosition = pressLoc;
if ((TouchTriggerPosition - TouchPressPosition).LengthSquared() >
TOUCH_PRESS_TOLERANCE * TOUCH_PRESS_TOLERANCE)
{
TouchPressOutsideTolerance = true;
}
TouchReleasePosition = releasedLoc;
// If any double taps received, clear deferred taps
if (Gestures.ContainsKey(TouchGestures.DoubleTap))
{
DeferredTaps.Clear();
}
// Else add new taps
else if (Gestures.ContainsKey(TouchGestures.Tap))
{
// Clear old deferred taps
DeferredTaps.Clear();
// If the tap was consumed, don't defer it
if (!GestureStates[TouchGestures.Tap].HasEnumFlag(
InputStates.InputConsumed))
{
DeferredTaps.Add(Gestures[TouchGestures.Tap]);
}
}
// Clear gesture list each frame
Gestures.Clear();
foreach (var key in GestureStates.Keys.ToList())
{
GestureStates[key] = InputStates.None;
}
// If any taps have existed for long enough they can't be double taps
var time = DateTime.Now;
for (int i = DeferredTaps.Count - 1; i >= 0; i--)
{
var sample = DeferredTaps[i];
if (TouchPanelState.DoubleTapThresholdElapsed(sample))
{
Gestures[TouchGestures.TapNoDouble] = sample;
DeferredTaps.RemoveAt(i);
#if DEBUG
Console.WriteLine(string.Format(
"{0}: Position [{1}, {2}] - [{3}, {4}]",
TouchGestures.TapNoDouble,
sample.Position.X, sample.Position.Y,
sample.Position2.X, sample.Position2.Y));
#endif
}
}
}
