JustinP231's Site - Recursion Limit/Freezing Problem with Background Scrolling

Recursion Limit/Freezing Problem with Background Scrolling in Developer Help

ID:139493

Dec 15 2010, 9:35 am

Code:

    proc
        bgscroll(turf/stars, number)
            while(stars.scroll == 1)
                var/somenumber = number * 4
                stars.pixel_x -= somenumber
                sleep(1)
                if (stars.pixel_x < (stars.x + 2) * -32)
                    stars.pixel_x = 0
                    stars.overlays = null
                    var/starss = rand(1, 10)
                    var/a=0
                    for(a=1, a<=starss, a++)
                        var/color = rand(1, 12)
                        var/image/star = new('stars.dmi', "[color]")
                        star.pixel_x = rand(-16, 16)
                        star.pixel_y = rand(-16, 16)
                        stars.overlays += star
                    stars.pixel_x = ((world.maxx - stars.x) - 1) * 32

So, I was goofing around with this little project a while back, I was going to make a pixel-movement side-scrolling space-shooter, but that's not really the point. I made this looping proc to scroll the background, by gradually editting its pixel_x at various rates after applying a randomized star pattern to it. The background scrolls wonderfully, and for the most part it works just as planned. After a minute or so, though, the game will just lock up, with the message that I'd reached the maximum recursion limit, regardless of the setting of world_loop. Any idea what the problem could be?