/// <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>
protected override void Update(GameTime gameTime)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
{
this.Exit();
}
lastMouseState = currentMouseState;
currentMouseState = Mouse.GetState();
if (lastMouseState != null &&
currentMouseState != null &&
lastMouseState.Value.LeftButton == ButtonState.Released && currentMouseState.Value.LeftButton == ButtonState.Pressed)
{
board.HandleMouseClick(new Vector2(currentMouseState.Value.X, currentMouseState.Value.Y));
}
base.Update(gameTime);
}