What happened to grow by block?

I remember that in addition to grow to block we had also grow by block. What happened to it? I don't see it in actors/tweening...

We may have had one at some point. In any case, you can do the same thing with the grow to block, though. You just have to do a little bit of math.

Can you give me formula? I am not good at math, especially trigonometric.

There's no trigonometry involve, but only proportions.

If a square is 100 pixels wide and you want it to grow to 200, then it grows twice (200 / 100 = 2). In  other words, you want it to grow by 2. I think you can figure out the rest.

Yeah, but in both grow to and grow by we had earlier percents are used, not actual pixels.

Then convert it to percentage... 2 * 100 = 200%

Darkhog, do you need any more help about this?

For now no, but only because I don't have time for this now (setting my new Polish Stencyl community).

So I may have questions later.