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);
}
public virtual void Draw(MenuScreen screen, bool isSelected, GameTime gameTime)
{
Color color = isSelected ? Color.Yellow : Color.White;
double time = gameTime.ElapsedGameTime.TotalSeconds;
float pulsate = (float) Math.Sin (time * 6) + 1;
float scale = 1 + pulsate * 0.05f * selectionFade;
color *= 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 GetWidth(MenuScreen screen)
{
return (int) screen.ScreenManager.Font.MeasureString(Text).X;
}
public virtual int GetHeight(MenuScreen screen)
{
return screen.ScreenManager.Font.LineSpacing;
}