220 and 220.0 is not the same

Hunnenkoenig

I am trying to do here something, which is based on coordinates and I read and write them and I just experienced that 220 is not the same as 220.0

If the value is 220.0 (spawning point), my actor doesn't do, what it should. As soon as I do something with it and it returns to his original position and his value changes to 220, it does, what it should do.

EDIT:

It was just a "bug report" but I have found the "floor" function in the express editor :-)

Although, it doesn't do anything in my case....

EDIT2:
floor(220.0) is 219...
Hm...

CodeMonkey

I can't reproduce that issue of floor(220.0) being 219.

Is there something else you do to test that? I just do a Display Text of floor(220.0)

Hunnenkoenig

Sorry, probably it was my fault with 219, because I spawned an actor relative to another actor in -65 position.

The thing is:

I have an icon 49x49
this icon spawns the same icon -65 relative to actor on the Y axis.

I needed this second actor's y coordinate and I used display text.
After spawning it, it told me 220.0

then I used change positionY to floor(self.positionY) and then I got 219.

I believe, that was, what I did.

I also messed around with the -65 and tried -65,5 and -64,5 and I think by one of them is then the 219 happened.

I managed to work around, but I will check again, if it is needed.

scitunes

I have heard that GS doesn't so well with images and actors that have an odd dimension.

not sure if that is the problem here. Something to try though.

design219

Does anybody else have no clue as to what "floor" is?

scitunes

it rounds down I believe. So I think floor(10.9) = 10 and ceiling(10.1) = 11

not totally sure though

design219

Ah, thanks. I feel smarter now!

firemaplegames

there's also "ceil" as well... which rounds up.

@Hunn: if you have graphics that have an odd dimension, i.e 49x49, they will be blurry.

I would make them 50x50, or 48x48.

Because GS centers everything, that odd pixel will get split, and cause a blur.