Discussion:
[Rock-dev] Fwd: Re: [rock-package_set] added Box2D library (#2)
Janosch Machowinski
2014-07-15 13:03:15 UTC
Permalink
Any opinions,
were a 2d game engine should go ?
I vote for external.
Greetings
Janosch



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octomap contains GUI and GL stuff. Well, basically anything contains GUI
and GL stuff these days.

If you google box2d, its subtitle is "2d physics engine for games". The
amount of correctness it has is IMO irrelevant, it aims at doing simulation.

The real question is: where would you put it if Rock people developed it
? External is a non-category, that's why I personally want to get rid of it.

If you don't agree, we should move this discussion to rock-dev.

???
Reply to this email directly or view it on GitHub
<https://github.com/rock-core/rock-package_set/pull/2#issuecomment-49024917>.



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Matthias Goldhoorn
2014-07-15 13:34:23 UTC
Permalink
I still like the external/ folder too

it makes kind of clear that these packages not directly under the
maintanance of rock.
In the first run it might confuse that they are not related to packages.
but i do like the external too.

Best,
Matthias
Post by Janosch Machowinski
Any opinions,
were a 2d game engine should go ?
I vote for external.
Greetings
Janosch
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octomap contains GUI and GL stuff. Well, basically anything contains
GUI and GL stuff these days.
If you google box2d, its subtitle is "2d physics engine for games".
The amount of correctness it has is IMO irrelevant, it aims at doing
simulation.
The real question is: where would you put it if Rock people developed
it ? External is a non-category, that's why I personally want to get
rid of it.
If you don't agree, we should move this discussion to rock-dev.
---
Reply to this email directly or view it on GitHub
<https://github.com/rock-core/rock-package_set/pull/2#issuecomment-49024917>.
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Sylvain Joyeux
2014-07-15 14:03:18 UTC
Permalink
Why I don't like external/
- it feels too much like "I don't know where to put it, so I put it
in external/"
- there is no such thing as "packages not in external are under the
direct maintenance of Rock". It simply does not scale. If someone
complains that slam/orogen/blabla fails, I personally don't feel
obligated to fix it. If we want Rock to strive, we should make sure
that people feel like they can contribute their package to the
distribution *while* having maintenance of the code, just like ROS
does. The only thing that is "under the direct maintenance of Rock" is
rock.core.
- it makes browsing the packages terrible. When I want to look at
what exists for e.g. planning, I go in the planning/ category. When I
look at a package in external/ I really don't know what they are for.
Not even a clue.
- categories are not perfect. One of Janosch's argument against box2d
in simulation was "this is not a real simulation engine in the sense
of physical correctness.". Fair enough. Now, so what ? It is a bad
simulation engine but a simulation engine nonetheless.

Moreover, external/ is bound to become the biggest category in all of
Rock... We will reuse more and more !

For instance,
- external/ompl and external/sbpl should IMO go in planning/
- external/freenect and external/aruco in drivers/
- ...

Sylvain

On Tue, Jul 15, 2014 at 3:34 PM, Matthias Goldhoorn
Post by Matthias Goldhoorn
I still like the external/ folder too
it makes kind of clear that these packages not directly under the
maintanance of rock.
In the first run it might confuse that they are not related to packages. but
i do like the external too.
Best,
Matthias
Any opinions,
were a 2d game engine should go ?
I vote for external.
Greetings
Janosch
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octomap contains GUI and GL stuff. Well, basically anything contains GUI and
GL stuff these days.
If you google box2d, its subtitle is "2d physics engine for games". The
amount of correctness it has is IMO irrelevant, it aims at doing simulation.
The real question is: where would you put it if Rock people developed it ?
External is a non-category, that's why I personally want to get rid of it.
If you don't agree, we should move this discussion to rock-dev.
?
Reply to this email directly or view it on GitHub.
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Zentrale: +49 421 178 45-6611
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Martin Fritsche
2014-07-15 15:01:57 UTC
Permalink
Are you talking about libbox2d0? It's a Debian-package and maybe also
available for Ubuntu and therefore maybe not needed in the project
directory?

Best,
Martin
Post by Janosch Machowinski
Any opinions,
were a 2d game engine should go ?
I vote for external.
Greetings
Janosch
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octomap contains GUI and GL stuff. Well, basically anything contains GUI
and GL stuff these days.
If you google box2d, its subtitle is "2d physics engine for games". The
amount of correctness it has is IMO irrelevant, it aims at doing simulation.
The real question is: where would you put it if Rock people developed it
? External is a non-category, that's why I personally want to get rid of it.
If you don't agree, we should move this discussion to rock-dev.
?
Reply to this email directly or view it on GitHub
<https://github.com/rock-core/rock-package_set/pull/2#issuecomment-49024917>.
_______________________________________________
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Sylvain Joyeux
2014-07-15 15:17:29 UTC
Permalink
2.3.0 is indeed packaged in ubuntu 14.04. That would at least make
this particular discussion moot :P

We should still make a decision on the fate of external/ though.

Sylvain

On Tue, Jul 15, 2014 at 5:01 PM, Martin Fritsche
Post by Martin Fritsche
Are you talking about libbox2d0? It's a Debian-package and maybe also
available for Ubuntu and therefore maybe not needed in the project
directory?
Best,
Martin
Post by Janosch Machowinski
Any opinions,
were a 2d game engine should go ?
I vote for external.
Greetings
Janosch
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octomap contains GUI and GL stuff. Well, basically anything contains GUI
and GL stuff these days.
If you google box2d, its subtitle is "2d physics engine for games". The
amount of correctness it has is IMO irrelevant, it aims at doing simulation.
The real question is: where would you put it if Rock people developed it
? External is a non-category, that's why I personally want to get rid of it.
If you don't agree, we should move this discussion to rock-dev.
?
Reply to this email directly or view it on GitHub
<https://github.com/rock-core/rock-package_set/pull/2#issuecomment-49024917>.
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Janosch Machowinski
2014-07-15 15:24:38 UTC
Permalink
Interresting... Sadly, in Ubuntu 12.04 there is only
box2d 2.01 which is incompatible with 2.3.0
Janosch
Post by Sylvain Joyeux
2.3.0 is indeed packaged in ubuntu 14.04. That would at least make
this particular discussion moot :P
We should still make a decision on the fate of external/ though.
Sylvain
On Tue, Jul 15, 2014 at 5:01 PM, Martin Fritsche
Post by Martin Fritsche
Are you talking about libbox2d0? It's a Debian-package and maybe also
available for Ubuntu and therefore maybe not needed in the project
directory?
Best,
Martin
Post by Janosch Machowinski
Any opinions,
were a 2d game engine should go ?
I vote for external.
Greetings
Janosch
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2.7.2.1390750, Antispam-Data: 2014.7.15.122721
octomap contains GUI and GL stuff. Well, basically anything contains GUI
and GL stuff these days.
If you google box2d, its subtitle is "2d physics engine for games". The
amount of correctness it has is IMO irrelevant, it aims at doing simulation.
The real question is: where would you put it if Rock people developed it
? External is a non-category, that's why I personally want to get rid of it.
If you don't agree, we should move this discussion to rock-dev.
?
Reply to this email directly or view it on GitHub
<https://github.com/rock-core/rock-package_set/pull/2#issuecomment-49024917>.
_______________________________________________
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Rock-dev at dfki.de
http://www.dfki.de/mailman/cgi-bin/listinfo/rock-dev
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Unterwasserrobotik
DFKI Bremen
Robotics Innovation Center
Robert-Hooke-Stra?e 1
28359 Bremen, Germany
Phone: +49 (0)421 17845-4134
Zentrale: +49 421 17845-0
Fax: +49 (0)421 17845-4150 (Faxe bitte namentlich kennzeichnen)
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Geschaeftsfuehrung: Prof. Dr. Dr. h.c. mult. Wolfgang Wahlster
(Vorsitzender) Dr. Walter Olthoff
Vorsitzender des Aufsichtsrats: Prof. Dr. h.c. Hans A. Aukes
Amtsgericht Kaiserslautern, HRB 2313
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