I would do it this way:

• Create a SceneObject and call it timer
• Add a TextSprite to it, and remove the default Sprite
• Set the TextSprite to your preferred font, color and size, and set the text value to 0
• Go to the Functions tab, add a function called start

  this.time = 0;
  this.running = true;
  this.interval(1000, 'tick');

   

• Add a function called tick

  this.getSprite().setText(++this.time);
  

   

• Add a function called stop
   

  this.running = false;
  this.unschedule('tick');

   

• In your card's onMouseDown function, add this:

  if (!_.timer.running)
  {
      _.timer.start();
  }

   

• Finally, wherever we have the code that calls fadeOut  (can't remember exactly where it is off the top of my head), add this:
   

  _.timer.stop();

   

Okay, this solution works quite well.

I've changed it to an 100ms interval so I am able to measure .1 secs.

Last Question to this topic:

Any way to format the written text? Checked a way where I've added .1 on the time in the tick function, but it's a text, no float ...

So I got literally no idea how to format the count.

If you are doing 100ms intervals, it makes sense to increment the time variable by 0.1 rather than 1. In other words, I'd change your tick function to this:

this.time += 0.1;
this.getSprite().setText(this.time);

Note that this.time is a number, it gets automatically converted to a string when you pass it to setText. You could do anything you like to it before passing it to setText, for example the argument of setText could be this.time.toFixed(1) to force 1 decimal digit, or this.time.toString(16) to convert it to a hex string, or you know, any sort of formatting that you like :)

Tried it with 0.1 in "tick", but then I get results like 4.99999999 or 5.000000001...

Checked it also with:

this.time += 0.1;
this.time.toFixed(1,2); //Also tried (1)
this.getSprite().setText(this.time);

No changes.

Is ther any documentation of wade where I can read through all functions and stuff like that? Maybe then I don't have to ask that much questions :-P

The documentation for all WADE functions is here:

WADE API reference

However it's more a JavaScript question than a WADE question. The problem with the code above is that toFixed() doesn't modify the original number, it returns a new string, so you want

this.time += 0.1;
this.getSprite().setText(this.time.toFixed(1));

Oh, okay. That worked.

Again: Thank you for your fast responses and effort you put in this project and the questions around it!