public override void Draw(MenuScreen screen, bool isSelected, GameTime gameTime) { //Update the image position of the preview before drawing UpdatePreviewPosition(); Color color = isSelected ? Color.Yellow : Color.White; color *= screen.TransitionAlpha; if(IsVisible) screen.ScreenManager.SpriteBatch.Draw(Preview, PreviewPosition, Source, color); base.Draw(screen, isSelected, gameTime); }
/// <summary> /// Updates the menu entry. /// </summary> public virtual void Update(MenuScreen screen, bool isSelected, GameTime gameTime) { // there is no such thing as a selected item on Windows Phone, so we always // force isSelected to be false #if WINDOWS_PHONE isSelected = false; #endif // When the menu selection changes, entries gradually fade between // their selected and deselected appearance, rather than instantly // popping to the new state. float fadeSpeed = (float)gameTime.ElapsedGameTime.TotalSeconds * 4; if (isSelected) selectionFade = Math.Min(selectionFade + fadeSpeed, 1); else selectionFade = Math.Max(selectionFade - fadeSpeed, 0); }
/// <summary> /// Queries how much space this menu entry requires. /// </summary> public virtual int GetHeight(MenuScreen screen) { return screen.ScreenManager.Font.LineSpacing; }
/// <summary> /// Queries how wide the entry is, used for centering on the screen. /// </summary> public virtual int GetWidth(MenuScreen screen) { return (int)(screen.ScreenManager.Font.MeasureString(Text).X * scale); }
/// <summary> /// Draws the menu entry. This can be overridden to customize the appearance. /// </summary> public virtual void Draw(MenuScreen screen, bool isSelected, GameTime gameTime) { // there is no such thing as a selected item on Windows Phone, so we always // force isSelected to be false #if WINDOWS_PHONE isSelected = false; #endif // Draw the selected entry in yellow, otherwise white. Color color = isSelected ? Color.Yellow : Color.White; // Pulsate the size of the selected menu entry. double time = gameTime.TotalGameTime.TotalSeconds; float pulsate = (float)Math.Sin(time * 6) + 1; float _scale = scale + pulsate * 0.05f * selectionFade; // Modify the alpha to fade text out during transitions. color *= screen.TransitionAlpha; // Draw text, centered on the middle of each line. ScreenManager screenManager = screen.ScreenManager; SpriteBatch spriteBatch = screenManager.SpriteBatch; SpriteFont font = screenManager.Font; Vector2 origin = new Vector2(0, font.LineSpacing / 2); if(IsVisible) spriteBatch.DrawString(font, text, position, color, 0, origin, _scale, SpriteEffects.None, 0); }