/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
public void Update(GameTime gameTime)
{
TouchCollection touchCollection = TouchPanel.GetState();
var touchInfos = touchCollection.Select(t => new TouchInfo(
Vector2.Transform(t.Position, App.Viewport.MatrixInv),
t.Pressure,
t.State)).ToArray();
foreach (var layer in layers)
{
layer.Update(gameTime, touchInfos);
}
}
