/// <summary>
/// Responds to user input, changing the selected entry and accepting
/// or cancelling the menu.
/// </summary>
public override void HandleInput(InputState input)
{
// Move to the previous menu entry?
if (input.IsMenuUp(ControllingPlayer))
{
EventManager.QueueEvent(new GameEvent(EventType.MenuHover));
_selectedEntry--;
if (_selectedEntry < 0)
_selectedEntry = _menuEntries.Count - 1;
}
// Move to the next menu entry?
if (input.IsMenuDown(ControllingPlayer))
{
EventManager.QueueEvent(new GameEvent(EventType.MenuHover));
_selectedEntry++;
if (_selectedEntry >= _menuEntries.Count)
_selectedEntry = 0;
}
// Mouse selection of menu entries
for (var i = 0; i < _menuEntries.Count; i++)
// ReSharper disable PossibleLossOfFraction
if (ScreenManager != null && (input.LastMouseState.Y >= _menuEntries[i].Position.Y - ScreenManager.Font.LineSpacing / 2 && input.LastMouseState.Y < _menuEntries[i].Position.Y + ScreenManager.Font.LineSpacing / 2
// ReSharper restore PossibleLossOfFraction
&& input.LastMouseState.X > _menuEntries[i].Position.X && input.LastMouseState.X < _menuEntries[i].Position.X + _menuEntries[i].GetWidth(this)))
{
if (i != _selectedEntry && TransitionAlpha > 0.9999)
{
EventManager.QueueEvent(new GameEvent(EventType.MenuHover));
}
_selectedEntry = i;
if (input.IsNewLeftClick())
{
OnSelectEntry(i, PlayerIndex.One);
}
}
// Accept or cancel the menu? We pass in our ControllingPlayer, which may
// either be null (to accept input from any player) or a specific index.
// If we pass a null controlling player, the InputState helper returns to
// us which player actually provided the input. We pass that through to
// OnSelectEntry and OnCancel, so they can tell which player triggered them.
PlayerIndex playerIndex;
if (input.IsMenuSelect(ControllingPlayer, out playerIndex))
{
OnSelectEntry(_selectedEntry, playerIndex);
}
else if (input.IsMenuCancel(ControllingPlayer, out playerIndex))
{
OnCancel(playerIndex);
}
}