public virtual void Draw(MenuScreen menu, bool isSelected, GameTime gameTime)
{
// Draw the selected entry in yellow, otherwise white.
Color color = isSelected ? Color.Yellow : Color.White;
// Modify the alpha to fade text out during transitions.
color *= menu.TransitionAlpha;
// Draw text, centered on the middle of each line.
MenuSystem sys = menu.MenuSystem;
SpriteBatch spriteBatch = sys.SpriteBatch;
SpriteFont font = sys.Font;
Vector2 origin = new Vector2(0, font.LineSpacing / 2);
spriteBatch.DrawString(font, text, position, color, 0,
origin, 1, SpriteEffects.None, 0);
}
public virtual void Update(MenuScreen screen, bool isSelected, GameTime gameTime)
{
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 wide the entry is, used for centering on the menu.
/// </summary>
public virtual int GetWidth(MenuScreen screen)
{
return (int)screen.MenuSystem.Font.MeasureString(Text).X;
}
/// <summary>
/// Queries how much space this menu entry requires.
/// </summary>
public virtual int GetHeight(MenuScreen screen)
{
return screen.MenuSystem.Font.LineSpacing;
}
