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psykopath In reply to JohnJensen [2009-08-16 01:01:39 +0000 UTC]

Heh, thanks. I added pausing and sontraints to it but never uploaded. I think I'll figure out how to use Box2D before I do any more stuff like this.

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psykopath In reply to doc-d [2009-06-22 22:41:47 +0000 UTC]

Thanks.

Yeah I know, you're on my watch list

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psykopath In reply to until-it-bleeds [2009-03-26 21:56:33 +0000 UTC]

Frame rate.

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psykopath In reply to lazermoose [2009-03-24 21:41:05 +0000 UTC]

Lol Thanks for the watch, I'm going to submit the newer version of this soon.

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psykopath In reply to fighterlegend [2009-02-22 00:11:39 +0000 UTC]

Yeah that's next. It's all there to do within APE, just have to make the interface.

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psykopath In reply to wonderwhy-ER [2009-02-20 08:46:34 +0000 UTC]

Yeah, the downloadable version on the site doesn't support rigid bodies (rectangles don't rotate, etc), but in the google code SVN there is newer versions.

My main problem with Box2D was the lack of documentation. I tried learning what I could from the demos, but there was no explanation for why certain calls were necessary or the parameters they expected.

Hopefully this will be stable enough for a simple game. Apart from everything wobbling slightly and never stabilising, it easily handles 20+ active objects (not including fixed objects for level layout).

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wonderwhy-ER In reply to psykopath [2009-02-20 08:53:40 +0000 UTC]

Yeah I heard of it. Do new versions have documentation?

Actually as I said it has same structure as C++ version and C++ had documentation. Plus there is manual on AS3 version as well: [link] [link]

20 objects. Hmm not much actually

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psykopath In reply to wonderwhy-ER [2009-02-20 11:49:50 +0000 UTC]

No new documentation, but the code is commented a lot. I can't figure out AngularConstraints though, they seem to break straight away
Also, to use it with Flash Player 10 you need to rename the Vector class. I made a Python script to scan the directory and change all occurences of Vector to AVector, then I just had to rename VectorForce which was accidentally affected.

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wonderwhy-ER In reply to psykopath [2009-02-20 12:17:48 +0000 UTC]

Heh That's why language developers prefer not to add new keywords after language become public...

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psykopath In reply to wonderwhy-ER [2009-02-20 11:39:22 +0000 UTC]

Yeah I had seen that, and it didn't help much.

I got stuck trying to work out what
worldAABB.lowerBound.Set(-100.0, -100.0);
worldAABB.upperBound.Set(100.0, 100.0);
did, and got too frutrated and never tried again It would never work with the values I used, I think I needed to scale them or something, no idea

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Supa-Monky In reply to psykopath [2009-02-20 14:18:13 +0000 UTC]

AABB is an axis aligned bounding box. lower limit is x,y's lowest numbers, upper is max.

And the world is where objects are allowed in your simulation before they become non-active.

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psykopath In reply to Supa-Monky [2009-02-21 01:16:23 +0000 UTC]

Yeah but when I changed that to my stage parameters (0,0) (550,400) it'd stuff up. So it didn't work like I thought, and there was no explanation of it.

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Supa-Monky In reply to psykopath [2009-02-21 04:41:26 +0000 UTC]

probably because of the world scale

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wonderwhy-ER In reply to psykopath [2009-02-20 12:14:58 +0000 UTC]

Yeah in some ways it's parameters are very confusing... Changing some features that intuitively should not mess up with physics sometimes mess it up... When was writing crystal towers quickly decided not to change settings much as it tends to make engine unpredictable pretty fast... It just seems that Box2D was not designed to be clear... More like efficient for some specific physics simulations ideas behind it...

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psykopath In reply to hatpie [2009-02-20 08:21:03 +0000 UTC]

Yep

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