Fixed [2.1.15] Upside down springs

Happened in RVZ1 twice, too. Couldn't replicate it by a forced jump though. I suppose it has something to do with the angle?

I suspect it's because of the springs in both cases being in tightly packed groups, where they may actually be setting each other off unintentionally... somehow. I'll get back to you on that, this is a curious issue here.

Oh good grief, they actually trigger other springs at the same time if you happen to be in normal gravity when triggering them, it turns out:



In particular they fling down only the next spring in order of item placement in the map. ...but they do this only when you're in normal gravity; when you're in reverse gravity they don't do this at all.

Curious findings, can't for the life of me figure out why this is happening firsthand.

I can describe what is happening in two words:
SRB2 Physics.

What happens when you try to go on normal springs in reverse gravity?

Nothing goes wrong there from what I've checked, it's just going on reverse springs in normal gravity where things go wrong.

Dunno why I didn't provide a test wad for this issue earlier, but here you go: https://dl.dropboxusercontent.com/u/25409000/2.1/udspring-test.wad

I've just fixed this issue in my "miscellanous-fixes" branch at the SRB2 repository:
http://git.magicalgirl.moe/STJr/SRB2/commit/b88600dac6a3b0e3b0b94d3156517074aae746ba