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);
}
//can be overrided to customize appearance
public virtual void Draw(MenuScreen screen, Vector2 position,
bool isSelected, GameTime gameTime)
{
Color color = isSelected ? Color.Yellow : Color.White;
double time = gameTime.TotalGameTime.TotalSeconds;
float pulsate = (float)Math.Sin(time * 6) + 1;
float scale = 1 + pulsate * 0.05f * selectionFade;
color = new Color(color.R, color.G, color.B, screen.TransitionAlpha);
ScreenManager screenManager = screen.ScreenManager;
SpriteBatch spriteBatch = screenManager.SpriteBatch;
SpriteFont font = screenManager.Font;
Vector2 origin = new Vector2(0, font.LineSpacing / 2);
spriteBatch.DrawString(font, text, position, color, 0,
origin, scale, SpriteEffects.None, 0);
}
public virtual int GetHeight(MenuScreen screen)
{
return screen.ScreenManager.Font.LineSpacing;
}