Parallax scrolling - anyone had luck with it?

skott

Hi,

As the title says, does anyone had luck making parallax scrolling using gs 8.6

I have now tried any possible solutions found on the forum beside my own ideas.. The scrolling images glitches and the images disappears random..

If anyone have managed to do a working parallax - please tell me how to..

Rob2

theres an excellent example of what can be done here http://gamesalad.com/game/play/33976

skott

Yes that is perfect - wish I could download it.. I've have tried to do it the way he has done it, but without any luck..

AfterBurnett

I'm having the same issues.

jonmulcahy

Here is my game using paralax:
http://gamesalad.com/game/play/35456

it was pretty simple to do, lets say you're play area is 480 wide (landscape view). Create an image 960 wide and cut it in half, so you have two 480px sections. Position the first image at 0, and the other at 480. Then put rules on each that says when positon.y is >= 720 move to -240. that should wrap everything around.

does that make sense? I'll see if I can throw together a quick demo

jonmulcahy

ok, here's my parallax demo:
http://gamesalad.com/game/play/14201

you should be able to download it and see what I'm doing.

Eastbound

Oh very nice Mulcahy! Never thought of that approach.

AfterBurnett

Sweet, thanks! I might do that. At the moment I have wrap enabled and I just kill enemies I don't want to reappear when they hit invisible walls... seems to work

quantumsheep

mulcahy said:
ok, here's my parallax demo:
http://gamesalad.com/game/play/14201

you should be able to download it and see what I'm doing.

Doesn't show up for me

AfterBurnett

Hmmm... problem with this method.... the images stop when they get to their target...

AfterBurnett

I can't find it either...

AfterBurnett

Okay, here's what I've done... probably wouldn't work with detailed gfx but mine is an Atari 2600 homage so it's fine. Basically, I have a timer inside an actor that spawns a new actor (the scrolling BG) every couple of seconds. Takes a while to get the timing precise but it's working for me. Obviously you have to set the linear speed of the actor to whatever you want too.

bladeolson

I have done it. The trick is to make the layers move at different speeds the ones in the back move the slowest. Tie everything to the left or right movement. I made the screen wrap on X too so it wraps around.

AfterBurnett

Yeah but that doesn't help when you have bullets flying around Don't want them to wrap back! I used a timer and spawner... working well in my game

skott

mulcahy: Cool, i'll take a look at it when i'm back home from work..

AfterBurnett

Has anyone got this going smoothly? Works okay for me (changing self.position X) but every now and then it jumps and then I have a gap between my png files... there is no particular time it happens... sometimes it doesn't but it's annoying nonetheless.

Rob2

I'm not trying to be clever again Poly (sounds so sweet) but that link I posted at the top of the thread is the best example I've seen, you don't get the vertical flickers on a device that appear in safari, I'm sure JC would mail it to you.

AfterBurnett

Yeah, I had a look at that... but can't download it... I shall track him down... thanks.

AfterBurnett

Although... that is a pretty basic demo... nothing coming in from off screen etc so he may have just wrapped the X axis... which doesn't help me... if he didn't use wrap though, I'm very impressed and intrigued!