/// <summary>
/// Draws the message box.
/// </summary>
public override void Draw(GameTime gameTime)
{
// Darken down any other screens that were drawn beneath the popup.
ScreenManager.FadeBackBufferToBlack(TransitionAlpha * 2 / 3);
// Center the message text in the viewport.
Viewport viewport = ScreenManager.GraphicsDevice.Viewport;
Vector2 viewportSize = new Vector2(viewport.Width, viewport.Height);
Vector2 textSize = ScreenManager.Font.MeasureString(message);
Vector2 textPosition = (viewportSize - textSize) / 2;
Vector2 usageTextSize = smallFont.MeasureString(usageText);
Vector2 usageTextPosition = (viewportSize - usageTextSize) / 2;
usageTextPosition.Y = textPosition.Y +
ScreenManager.Font.LineSpacing * 1.1f;
// Fade the popup alpha during transitions.
Color color = new Color(255, 255, 255, TransitionAlpha);
// Draw the background rectangles
Rectangle rect = new Rectangle(
(int)(Math.Min(usageTextPosition.X, textPosition.X)),
(int)(textPosition.Y),
(int)(Math.Max(usageTextSize.X, textSize.X)),
(int)(ScreenManager.Font.LineSpacing * 1.1f + usageTextSize.Y)
);
rect.X -= (int)(0.1f * rect.Width);
rect.Y -= (int)(0.1f * rect.Height);
rect.Width += (int)(0.2f * rect.Width);
rect.Height += (int)(0.2f * rect.Height);
Rectangle rect2 = new Rectangle(rect.X - 1, rect.Y - 1,
rect.Width + 2, rect.Height + 2);
ScreenManager.DrawRectangle(rect2, new Color(128, 128, 128,
(byte)(192.0f * (float)TransitionAlpha / 255.0f)));
ScreenManager.DrawRectangle(rect, new Color(0, 0, 0,
(byte)(232.0f * (float)TransitionAlpha / 255.0f)));
// Draw the message box text.
ScreenManager.SpriteBatch.Begin();
ScreenManager.SpriteBatch.DrawString(ScreenManager.Font, message,
textPosition, color);
ScreenManager.SpriteBatch.DrawString(smallFont, usageText,
usageTextPosition, color);
ScreenManager.SpriteBatch.End();
}
