/// <summary>
/// Responds to user input, changing the selected entry and accepting
/// or cancelling the menu.
/// </summary>
public override void HandleInput(GameTime gameTime, InputState input)
{
// For input tests 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;
// Move to the previous menu entry?
if (MenuUp.Evaluate(input, ControllingPlayer, out playerIndex))
{
SelectedEntry--;
if (SelectedEntry < 0)
{
SelectedEntry = MenuEntries.Count - 1;
}
}
// Move to the next menu entry?
if (MenuDown.Evaluate(input, ControllingPlayer, out playerIndex))
{
SelectedEntry++;
if (SelectedEntry >= MenuEntries.Count)
{
SelectedEntry = 0;
}
}
if (MenuSelect.Evaluate(input, ControllingPlayer, out playerIndex))
{
OnSelectEntry(SelectedEntry, playerIndex);
}
else if (MenuCancel.Evaluate(input, ControllingPlayer, out playerIndex))
{
OnCancel(playerIndex);
}
}
