/// <summary>
/// Responds to user input, accepting or cancelling the message box.
/// </summary>
public override void HandleInput( InputHelper input, GameTime gameTime )
{
if ( input.IsMenuSelect () || input.IsMenuCancel () ||
input.IsNewMouseButtonPress ( MouseButtons.LeftButton ) ) {
ExitScreen ();
}
}
public override void HandleInput( InputHelper input, GameTime gameTime )
{
if ( input.KeyboardState.GetPressedKeys ().Length > 0 ||
input.GamePadState.IsButtonDown ( Buttons.A | Buttons.Start | Buttons.Back ) ||
input.MouseState.LeftButton == ButtonState.Pressed ) {
_duration = TimeSpan.Zero;
}
}
/// <summary>
/// Constructs a new screen manager component.
/// </summary>
public ScreenManager( Game game )
: base(game)
{
// we must set EnabledGestures before we can query for them, but
// we don't assume the game wants to read them.
TouchPanel.EnabledGestures = GestureType.None;
_xnaContentManager = game.Content;
_xnaContentManager.RootDirectory = "Content";
_input = new InputHelper( this );
_screens = new List<GameScreen>();
_screensToUpdate = new List<GameScreen>();
_transitions = new List<RenderTarget2D>();
}
/// <summary>
/// Allows the screen to handle user input. Unlike Update, this method
/// is only called when the screen is active, and not when some other
/// screen has taken the focus.
/// </summary>
public virtual void HandleInput( InputHelper input, GameTime gameTime )
{
}
/// <summary>
/// Responds to user input, changing the selected entry and accepting
/// or cancelling the menu.
/// </summary>
public override void HandleInput( InputHelper input, GameTime gameTime )
{
// Mouse or touch on a menu item
int hoverIndex = GetMenuEntryAt ( input.Cursor );
for ( int i = 0; i < _menuEntries.Count; i++ ) {
MenuEntry item = _menuEntries [i];
item.IsHovered = i == hoverIndex;
}
if ( hoverIndex > -1 && _menuEntries [hoverIndex].IsSelectable () && !_scrollLock ) {
_selectedEntry = hoverIndex;
}
else {
_selectedEntry = -1;
}
_scrollSlider.Hover = false;
if ( input.IsCursorValid ) {
_scrollUp.Collide ( input.Cursor );
_scrollDown.Collide ( input.Cursor );
_scrollSlider.Collide ( input.Cursor );
}
else {
_scrollUp.Hover = false;
_scrollDown.Hover = false;
_scrollLock = false;
}
// Accept or cancel the menu?
if ( input.IsMenuSelect () && _selectedEntry != -1 ) {
MenuEntry item = _menuEntries [_selectedEntry];
if ( item.IsExitItem () ) {
ScreenManager.Game.Exit ();
}
else if ( item.Screen != null ) {
if ( item.IsSelected ) {
item.IsSelected = false;
ScreenManager.AddScreen ( item.Screen );
if ( item.Screen is LevelBase ) {
ScreenManager.AddScreen (
new MessageBoxScreen ( ( item.Screen as LevelBase ).GetDetails () ) );
}
}
else {
item.IsSelected = true;
}
}
}
else if ( input.IsMenuCancel () ) {
ScreenManager.Game.Exit ();
}
if ( input.IsMenuPressed () ) {
if ( _scrollUp.Hover ) {
_menuOffset = Math.Max ( _menuOffset - 200f * (float) gameTime.ElapsedGameTime.TotalSeconds, 0f );
_scrollLock = false;
}
if ( _scrollDown.Hover ) {
_menuOffset = Math.Min ( _menuOffset + 200f * (float) gameTime.ElapsedGameTime.TotalSeconds, _maxOffset );
_scrollLock = false;
}
if ( _scrollSlider.Hover ) {
_scrollLock = true;
}
}
if ( input.IsMenuReleased () ) {
_scrollLock = false;
}
if ( _scrollLock ) {
_scrollSlider.Hover = true;
_menuOffset = Math.Max ( Math.Min ( ( ( input.Cursor.Y - _menuBorderTop ) / ( _menuBorderBottom - _menuBorderTop ) ) * _maxOffset, _maxOffset ), 0f );
}
}
