/// <summary>
/// Draws the menu entry. This can be overridden to customize the appearance.
/// </summary>
public virtual void Draw(MenuScreen screen, Vector2 position,
bool isSelected, GameTime gameTime)
{
// Draw the selected entry in yellow, otherwise white.
Color color = isSelected ? Color.Yellow : Color.White;
// Pulsate the size of the selected menu entry.
double time = gameTime.TotalGameTime.TotalSeconds;
float pulsate = (float)Math.Sin(time * 6) + 1;
float scale = 1 + pulsate * 0.05f * selectionFade;
// Modify the alpha to fade text out during transitions.
color = new Color(color.R, color.G, color.B, screen.TransitionAlpha);
// Draw text, centered on the middle of each line.
ScreenManager screenManager = screen.ScreenManager;
SpriteBatch spriteBatch = screenManager.SpriteBatch;
SpriteFont font = screenManager.GameContent.font;
Vector2 origin = new Vector2(0, font.LineSpacing / 2);
spriteBatch.DrawString(font, text, position, color, 0,
origin, scale, SpriteEffects.None, 0);
}
/// <summary>
/// Constructs a new menu entry with the specified text and location.
/// </summary>
public MenuEntry(MenuScreen screen, string text, Vector2 position)
{
this.screen = screen;
this.Text = text;
this.position = position;
this.font = screen.ScreenManager.GameContent.gameFont;
}
public Rectangle BoundingRectangle(MenuScreen screen)
{
{
if (texture == null)
{
Vector2 textSize = screen.ScreenManager.GameContent.debugFont.MeasureString(text);
return new Rectangle((int)position.X, (int)position.Y, (int)textSize.X, (int)textSize.Y);
}
else
return new Rectangle((int)position.X, (int)position.Y, texture.Width, texture.Height);
}
}
/// <summary>
/// Constructs a new menu entry with the specified texture and location.
/// </summary>
public MenuEntry(MenuScreen screen, Texture2D texture, Vector2 position)
: this(screen, string.Empty, position)
{
this.texture = texture;
}
/// <summary>
/// Updates the menu entry.
/// </summary>
public virtual void Update(MenuScreen screen, bool isSelected,
GameTime gameTime)
{
// When the menu selection changes, entries gradually fade between
// their selected and deselected appearance, rather than instantly
// popping to the new state.
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 much space this menu entry requires.
/// </summary>
public virtual int GetHeight(MenuScreen screen)
{
return screen.ScreenManager.GameContent.font.LineSpacing;
}
/// <summary>
/// Queries how much space this menu entry requires.
/// </summary>
public virtual int GetHeight(MenuScreen screen)
{
return(screen.ScreenManager.GameContent.font.LineSpacing);
}
/// <summary>
/// Draws the menu entry. This can be overridden to customize the appearance.
/// </summary>
public virtual void Draw(MenuScreen screen, bool isSelected, GameTime gameTime)
{
// Draw the selected entry in yellow, otherwise white.
Color color = isSelected ? Color.Gold : Color.Gray;
// Pulsate the size of the selected menu entry.
double time = gameTime.TotalGameTime.TotalSeconds;
float pulsate = (float)Math.Sin(time * 6) + 1;
float scale = 1 + pulsate * 0.03f * selectionFade;
// Modify the alpha to fade text out during transitions.
color = new Color(color, screen.TransitionAlpha);
// Draw text, centered on the middle of each line.
ScreenManager screenManager = screen.ScreenManager;
SpriteBatch spriteBatch = screenManager.SpriteBatch;
if (texture == null)
spriteBatch.DrawString(screenManager.GameContent.debugFont, text, position, color, 0,
Vector2.Zero, scale, SpriteEffects.None, 1);
else
spriteBatch.Draw(texture, position, null, color, 0, Vector2.Zero, scale, SpriteEffects.None, 1);
}
