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Liquidfun – 2D physics engine for games

github.com

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Re: Liquidfun – 2D physics engine for games

#31

Post by philbarr »

tenfingers wrote: post #24
babuskov wrote: post #15

"For applications on Google Play that integrate this tool, usage is tracked." Imagine if every open source library did that.

Pretty sad they decided to do this, actually.

They're not the only ones to do this. Vuforia is worse, it's free, which is tempting, but then Section 8 (i) of the license agreement[0] states:

"each end user consents to the collection, storage, and use by QCE and its affiliates and service providers of Statistics from the Software and the transfer of Statistics between QCE and its affiliates and service providers (which may be in the United States or in other countries), in each case for the purposes of (a) facilitating the provision of new products, updates, enhancements and other services, (b) improving the Software, and other products, services and technologies, and (c) providing new products, services or technologies to You and customers of QCE and its affiliates;"

To be fair, they're giving away a great SDK for free that they've put a lot of effort into, so they can demand what they like from the license. Google can too - you don't have to use the free stuff they're giving away.

[0] https://developer.vuforia.com/legal/license/2-8

Re: Liquidfun – 2D physics engine for games

#32

Post by philbarr »

scrollaway wrote: post #16
sgt wrote: post #12

It's interesting how much Google is using Github. Will we see an acquisition of Github in the near future?

There was a time I would have really hoped for that. When Github was still new and the only, pathetic, alternatives were SF and Google Code. But back then, Google had its head stuck all the way up SVN's trunk. Now I really hope they don't acquire Github. No website I know of has improved in such a consistently good way. Pure UI improvements, awesome new features and no feeling of feature creep on the user side (I don…

+1 for "had its head stuck all the way up SVN's trunk"

Awesome phrase that I shall steal for myself. Like, "the team wanted to use Git but management had their head stuck all the way up SVN's trunk."

Re: Liquidfun – 2D physics engine for games

#34

Post by seanmcdirmid »

timknauf wrote: post #23
codeka wrote: post #5

Earlier quoted context omitted.

Yes, you basically render the particles as metaballs for that sort of effect. Should be doable in glsl, though I haven't personally done it. Edit: here's a video showing the technique: http://vimeo.com/4391370

Yep, those kind of 2d metaballs are indeed doable in GLSL - I have a WebGL proof-of-concept lying around. I really struggled to get good performance, though my shader-fu isn't up to much.

Metaballs are too expensive for more than a few particles. There are probably some other algorithms that would work better, or not doing metaballs strictly.

Re: Liquidfun – 2D physics engine for games

#37

Post by eloisant »

de_dave wrote: post #8

For applications on Google Play that integrate this tool, usage is tracked. This tracking is done automatically using the embedded version string (b2_liquidFunVersionString), and helps us continue to optimize it. Is this tracking functionality restricted to libraries by Google employees? Seems like it would be useful for all third-party library developers to see how their libraries are being used and can be improved.

http://www.appbrain.com/stats/libraries/overview

Re: Liquidfun – 2D physics engine for games

#38

Post by stuaxo »

philbarr wrote: post #31
tenfingers wrote: post #24

Earlier quoted context omitted.

Pretty sad they decided to do this, actually.

They're not the only ones to do this. Vuforia is worse, it's free, which is tempting, but then Section 8 (i) of the license agreement[0] states: "each end user consents to the collection, storage, and use by QCE and its affiliates and service providers of Statistics from the Software and the transfer of Statistics between QCE and its affiliates and service providers (which may be in the United States or in other coun…

Hm, what are the data protection act implications of this ?

Re: Liquidfun – 2D physics engine for games

#40

Post by seszett »

scrollaway wrote: post #16
sgt wrote: post #12

It's interesting how much Google is using Github. Will we see an acquisition of Github in the near future?

There was a time I would have really hoped for that. When Github was still new and the only, pathetic, alternatives were SF and Google Code. But back then, Google had its head stuck all the way up SVN's trunk. Now I really hope they don't acquire Github. No website I know of has improved in such a consistently good way. Pure UI improvements, awesome new features and no feeling of feature creep on the user side (I don…

> I honestly think Github is a much higher quality shop: do one thing and do it extremely well.

You're saying this because you haven't heard about or used atom.io ;)

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