/// <summary>
/// Updates the current mouse/keyboard states.
/// </summary>
public static void Update()
{
PreviousMouseState = CurrentMouseState;
PreviousKeyboardState = CurrentKeyboardState;
CurrentMouseState = Microsoft.Xna.Framework.Input.Mouse.GetState();
CurrentKeyboardState = Microsoft.Xna.Framework.Input.Keyboard.GetState();
Mouse = new MouseInput(CurrentMouseState, PreviousMouseState);
Keyboard = new KeyboardInput(CurrentKeyboardState, PreviousKeyboardState);
}
/// <summary>
/// Activates the shortcut (if appropriate) based on the given keyboard state.
/// </summary>
/// <param name="kbd">The keyboard state to test.</param>
/// <returns>Whether or not the shortcut was activated.</returns>
public bool Handle(KeyboardInput kbd)
{
if (!IsPressed(kbd))
{
return(WasPressed = false);
}
if (WasPressed)
{
return(false);
}
Callback.Invoke();
return(WasPressed = true);
}
/// <summary>
/// Determine whether the shortcut should be activated based on the provided keyboard state.
/// </summary>
/// <param name="kbd">The keyboard state to test.</param>
/// <returns>Whether or not the shortcut is currently being pressed.</returns>
private bool IsPressed(KeyboardInput kbd)
{
List <Keys> keys = new List <Keys>(kbd.GetPressedKeys());
if (!keys.Remove(ShortcutButtons.Item1))
{
return(false);
}
if (ShortcutButtons.Item2 != Keys.None && !keys.Remove(ShortcutButtons.Item2))
{
return(false);
}
if (ShortcutButtons.Item3 != Keys.None && !keys.Remove(ShortcutButtons.Item3))
{
return(false);
}
if (keys.Count > 0)
{
return(false);
}
return(true);
}
