/// <summary>
/// Draws the menu.
/// </summary>
public override void Draw(GameTime gameTime)
{
SpriteBatch spriteBatch = ScreenManager.SpriteBatch;
SpriteFont font = ScreenManager.HudFont;
Vector2 position = MenuPosition;
// Make the menu slide into place during transitions, using a
// power curve to make things look more interesting (this makes
// the movement slow down as it nears the end).
float transitionOffset = (float)Math.Pow(TransitionPosition, 2);
if (ScreenState == ScreenState.TransitionOn)
{
position.X -= transitionOffset * 256;
}
else
{
position.X += transitionOffset * 512;
}
spriteBatch.Begin();
// Draw each menu entry in turn.
for (int i = 0; i < menuEntries.Count; i++)
{
MenuEntry menuEntry = menuEntries[i];
bool isSelected = IsActive && (i == selectedEntry);
menuEntry.Draw(this, position, isSelected, gameTime);
position.Y += menuEntry.GetHeight(this) + LineSpacing;
}
// Draw the menu title.
Vector2 titlePosition = TitlePosition;
Vector2 titleOrigin = font.MeasureString(menuTitle);
float titleScale = 1.5f;
titlePosition.Y -= transitionOffset * 100;
spriteBatch.DrawString(font, menuTitle, titlePosition, Color.Snow, 0, titleOrigin, titleScale, SpriteEffects.None, 0);
spriteBatch.End();
}