// Handler for the ManipulationDelta event.
// ManipulationDelta data is loaded into the
// translations transforms and applied to the
// upper touch rectangle and lower car images.
void TouchRectangle_ManipulationDelta(object sender,
ManipulationDeltaRoutedEventArgs e)
{
// TO-DO: Need to do more tests with inertia on all platforms.
if (e.IsInertial != true)
{
// Move the upper touch rectangle along the x-axis.
dragUpperTranslation.X += e.Delta.Translation.X;
if (dragUpperTranslation.X >= 0 && dragUpperTranslation.X < (MainRoot.ActualWidth * 0.65))
{
//Making sure the SketchCar is not bouncing and rotating wheels under this threshold.
CarStoryboard.Stop();
// Making sure the scene animation is paused at the same time if it was already started.
if (isAnimationStarted)
{
SceneStoryboard.Pause();
}
// Move the lower cars along the x-axis and keeping the same upper y-axis.
dragLowerTranslation.X = dragUpperTranslation.X;
dragLowerTranslation.Y = dragUpperTranslation.Y;
}
else if (dragUpperTranslation.X >= (MainRoot.ActualWidth * 0.65))
{
// Keep the upper rectangle at the same position as the lower rectangle.
dragUpperTranslation.X = dragLowerTranslation.X;
dragUpperTranslation.Y = dragLowerTranslation.Y;
//Starting the SketchCar bouncing and rotating wheels animations above the threshold.
CarStoryboard.Begin();
// Making sure the scene animation begin for the first time or resume if paused.
if (isAnimationStarted)
{
SceneStoryboard.Resume();
}
else
{
SceneStoryboard.Begin();
isAnimationStarted = true;
}
}
else
{
// Keep the upper rectangle at the same position as the lower rectangle.
dragUpperTranslation.X = dragLowerTranslation.X;
dragUpperTranslation.Y = dragLowerTranslation.Y;
// Making sure the scene animation is paused at the same time if it was already started.
if (isAnimationStarted)
{
SceneStoryboard.Pause();
}
}
}
}
private async void HingeAngleSensor_ReadingChanged(HingeAngleSensor sender, HingeAngleSensorReadingChangedEventArgs args)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
var angleValue = args.Reading.AngleInDegrees;
AngleValue.Content = "Angle value: " + angleValue.ToString();
//Making sure we are not moving again the cars if we are keeping the same angle
if (angleValue != previousAngle)
{
previousAngle = angleValue;
// When the dual-screen device is half-opened
if (angleValue == 180)
{
//Making sure the SketchCar is not bouncing and rotating wheels.
CarStoryboard.Stop();
// Making sure the scene animation is paused at the same time if it was already started.
if (isSceneAnimationStarted)
{
SceneStoryboard.Pause();
}
// Move the lower cars along the x-axis in the middle of the screen and keeping the same upper y-axis.
dragLowerTranslation.X = (MainRoot.ActualWidth / 2) - (MainRoot.ActualWidth *leftSideThresholdRatio) - 100;
dragLowerTranslation.Y = dragUpperTranslation.Y;
// Keep the upper rectangle at the same position as the lower rectangle.
dragUpperTranslation.X = dragLowerTranslation.X;
}
// When the dual-screen device is fully opened, meaning that both screens are facing aware from each other.
else if (angleValue == 360)
{
// Move the lower cars along the x-axis on the right side of the screen and keeping the same upper y-axis.
dragLowerTranslation.X = MainRoot.ActualWidth *rightSideThresholdRatio;
dragLowerTranslation.Y = dragUpperTranslation.Y;
// Keep the upper rectangle at the same position as the lower rectangle.
dragUpperTranslation.X = dragLowerTranslation.X;
dragUpperTranslation.Y = dragLowerTranslation.Y;
// Making sure the SketchCar bouncing and rotating wheels animations begin for
// the first time or correctly being stopped and begin again if already started.
if (isCarAnimationStarted)
{
CarStoryboard.Stop();
CarStoryboard.Begin();
}
else
{
CarStoryboard.Begin();
isCarAnimationStarted = true;
}
// Making sure the scene animation begin for the first time or resume if paused.
if (isSceneAnimationStarted)
{
SceneStoryboard.Resume();
}
else
{
SceneStoryboard.Begin();
isSceneAnimationStarted = true;
}
}
}
});
}