Search code examples
xna-4.0

Displaying seconds in XNA with Keypress?

I following a guide to display seconds in XNA, but was now wondering how to make the seconds count-up ONLY when I press Spacebar. So, when I start the game, the seconds don't start automatically, but only when I press the spacebar.

Is it possible to do this?

Solution

  • This will do what you ask. All I did was add a timerEnabled variable and set to true in the updated method if the SpaceBar was pressed. I also added a line that won't start the timer until timerEnabled is set to true.

    public class Game1 : Microsoft.Xna.Framework.Game
    {
        //Put this variable at the top with the others.
        bool timerEnabled;

        protected override void Update( GameTime gameTime )
        {
            if ( Keyboard.GetState().KeyDown( Key.Space ) ) timerEnabled = true;

            if (timerEnabled) _timer += gameTime.ElapsedGameTime.TotalMilliseconds;

            base.Update( gameTime );
        }

    }