Bug#861612: pixbros: level designs appear to be non-free

2017-06-03 Thread Steve Cotton
On Fri, May 19, 2017 at 01:14:09PM +0200, Markus Koschany wrote:
> Am 19.05.2017 um 02:24 schrieb Steve Cotton:
> > But the ones in contrib using original artwork only have the DFSG
> > parts in contrib, the copy of the original artwork isn't in contrib.
> 
> Exactly. But Pixbros has its own distinct DFSG-free artwork. Can't you
> see that?

This bug is about the level designs, the level designer's choices of
where the platforms are.  Whether the other game data is DFSG-free*
doesn't affect whether the levels are.

For the games in contrib, the levels or maps are frequently part of
the non-free data.  And for all the games where I've been part of the
community of players, I recall there's recognition of who made the
user-made maps and owns them, even for the communities that don't
require explicit licensing before putting user-made maps on a
community server.

* One of the enemies is anime/manga fan art, based on Naruto.

> Well and here it shows that you apply double standards. In Pathological
> the levels are "forced by the genre", in Tuxpuck it is just the
> rectangular table and the bat (and you forgot that the second player
> uses the same technique to move the bat as in the original game but
> nevermind). All major game aspects are implemented from the original
> games and it is easy to see from which one they stem from. Nevertheless
> the code and the artwork are completely different, DFSG-free and an
> independent piece of art. But Pixbros' levels which are simply bars in
> vertical and horizontal directions are somehow a copyright violation.

Imagine designing some intro levels of Pathological, and I think
you'll find it's quite probable that they'll look like the existing
intro level, simply because of the idea of the game.  I haven't looked
at the original or compared the other levels.

Now imagine designing some levels for Pixbros or any of the games that
inspired it. Even if you think of an existing level, and take its
ideas and general concepts such as "circle in the middle, some enemies
in the circle, some on the roof of the circle", do the new level's
platforms line up exactly with the original?

Pixbros' level of similarity is so close that I was surprised when I
checked level 37 (the "circle in the middle" one), and saw that it
does have a one-platform difference.

> Sorry but this bug report really makes me sad and I'm off to do
> something more useful now.

Same here.  While it's not PixFrogger, and it's not yet finished, I've
written a playable multiplayer frog race using Python and PyGame.
https://github.com/stevecotton/DartingFrogs

Steve



Bug#862864: Bug#861612: pixbros: level designs appear to be non-free

2017-05-19 Thread Markus Koschany
Am 19.05.2017 um 02:24 schrieb Steve Cotton:
> On Fri, May 12, 2017 at 11:03:24PM +0200, Markus Koschany wrote:
>> What we need to check is: Does the game comply with the DFSG and does it
>> infringe the copyright of another programmer/artist. In my opinion that
>> is not the case here because the license is DFSG-compatible and the game
>> looks and works differently in style and artwork. We are not aware of a
>> verdict which states that the level resemblance infringes the rights of
>> another party.
> 
> Hi Markus,
> 
> To clarify, I think it's a copyright violation.  The copyrights in
> question are the layout of the levels, the level designers' choices of
> where the platforms are.  For a simple level like level 30 it would be
> unremarkable for games in the same genre to have a similar level, but
> not the complex designs of most of the levels from 31 to 49.
> 
>> This whole bug report reminds me of Giana Sisters, ...

You are not even the copyright holder of the original game. Just just
claim that the level layout in this case is a copyright violation which
is not backed up by anything. I am sorry but this is layman talk and as
I previously said the mere level resemblance alone is not what paragraph
2.3 in Debian's Policy is talking about.

>> On the other hand we have many open source games that try to clone an
>> older game but they look and behave often differently and use their own
>> graphics or they just reinvent the engine and then use the original
>> artwork (hence why those games are shipped in contrib)
> 
> But the ones in contrib using original artwork only have the DFSG
> parts in contrib, the copy of the original artwork isn't in contrib.

Exactly. But Pixbros has its own distinct DFSG-free artwork. Can't you
see that?

>> Look at Pathological which is obviously a clone of Logical or Tuxpuck
>> which very much resembles the Shuffle Puck Cafe game. Are they non-free
>> too? I don't think so because I have played the original games and I can
>> tell you that the older games had both better graphics, more levels and
>> were more feature complete. They resemble each other but they are not on
>> a par and the risk that some company sues Debian just for distributing
>> them is highly unlikely because we make no money with them either.
> 
> Just as they used new artwork, Pathological used (AFAIK) new level
> designs. The first level looks like a level of Logical, but that's
> forced by the genre, there's a limited set of level designs for a
> tutorial level that introduces the concept of the game.
> 
> With tuxpuck the level design seems to be a rectangular table, with a
> rectangular area of that table that the player can move the bat to.
> 
> Neither of these games seems to have a direct copy from the game that
> inspired them.

Well and here it shows that you apply double standards. In Pathological
the levels are "forced by the genre", in Tuxpuck it is just the
rectangular table and the bat (and you forgot that the second player
uses the same technique to move the bat as in the original game but
nevermind). All major game aspects are implemented from the original
games and it is easy to see from which one they stem from. Nevertheless
the code and the artwork are completely different, DFSG-free and an
independent piece of art. But Pixbros' levels which are simply bars in
vertical and horizontal directions are somehow a copyright violation.

Sorry but this bug report really makes me sad and I'm off to do
something more useful now.










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Bug#861612: pixbros: level designs appear to be non-free

2017-05-18 Thread Steve Cotton
On Fri, May 12, 2017 at 11:03:24PM +0200, Markus Koschany wrote:
> What we need to check is: Does the game comply with the DFSG and does it
> infringe the copyright of another programmer/artist. In my opinion that
> is not the case here because the license is DFSG-compatible and the game
> looks and works differently in style and artwork. We are not aware of a
> verdict which states that the level resemblance infringes the rights of
> another party.

Hi Markus,

To clarify, I think it's a copyright violation.  The copyrights in
question are the layout of the levels, the level designers' choices of
where the platforms are.  For a simple level like level 30 it would be
unremarkable for games in the same genre to have a similar level, but
not the complex designs of most of the levels from 31 to 49.

> This whole bug report reminds me of Giana Sisters, ...

> On the other hand we have many open source games that try to clone an
> older game but they look and behave often differently and use their own
> graphics or they just reinvent the engine and then use the original
> artwork (hence why those games are shipped in contrib)

But the ones in contrib using original artwork only have the DFSG
parts in contrib, the copy of the original artwork isn't in contrib.

> Look at Pathological which is obviously a clone of Logical or Tuxpuck
> which very much resembles the Shuffle Puck Cafe game. Are they non-free
> too? I don't think so because I have played the original games and I can
> tell you that the older games had both better graphics, more levels and
> were more feature complete. They resemble each other but they are not on
> a par and the risk that some company sues Debian just for distributing
> them is highly unlikely because we make no money with them either.

Just as they used new artwork, Pathological used (AFAIK) new level
designs. The first level looks like a level of Logical, but that's
forced by the genre, there's a limited set of level designs for a
tutorial level that introduces the concept of the game.

With tuxpuck the level design seems to be a rectangular table, with a
rectangular area of that table that the player can move the bat to.

Neither of these games seems to have a direct copy from the game that
inspired them.

Regards,
Steve



Bug#861612: pixbros: level designs appear to be non-free

2017-05-12 Thread Markus Koschany
Hi,

Am 12.05.2017 um 21:36 schrieb Steve Cotton:
> On Fri, May 12, 2017 at 12:42:09AM +0200, Markus Koschany wrote:
>> Am 10.05.2017 um 20:56 schrieb Adrian Bunk:
>>> On Mon, May 01, 2017 at 03:50:21PM +0200, Steve Cotton wrote:
 ...
 Oh well at least this will resolve the Fenix-is-not-64-bit bugs.
>>>
>>> Is pixfrogger also affected?
>>
>> I think all images and graphics in pixfrogger are genuine and not copied
>> from another (non-free) game.
> 
> Agreed, I think Pixfrogger is OK.  I was unsure about the sprites,
> but only because it seems to have many different art styles, more
> than I expect for the small number of images.
> 
> Without Pixbros it's easier to reimplement Pixfrogger's on another
> game engine and drop Fenix.

I don't believe that's the right way to do it. We should focus on the
validity of this bug report and don't use it as a pretence to get rid of
Pixbros because it would (in theory) make reimplementing Pixfrogger
easier, which is also highly unrealistic. Who will reimplement the game?

>> I had a look a this bug report and I disagree with the assumption that
>> the level designs are non-free. You can clearly see by comparing the
>> screenshots from the original game and pixbros, that textures and
>> graphics are completely different. Yes, the level design of pixbros
>> resembles those of the other non-free games but it is not a direct copy.
> 
> It looks like a direct copy to me, compare the platforms in 31 and 32:
> 
> https://sources.debian.net/data/main/p/pixbros/0.6.3-2/niveles/nivel31.png
> https://sources.debian.net/data/main/p/pixbros/0.6.3-2/recursos/floors/floor31.png
> 
> https://sources.debian.net/data/main/p/pixbros/0.6.3-2/niveles/nivel32.png
> https://sources.debian.net/data/main/p/pixbros/0.6.3-2/recursos/floors/floor32.png
> 
> All of the levels have that level of similarity, I've just chosen 31
> and 32 because 21-30 have simpler designs.

I understand your point and I agree that the levels look similar and
resemble each other. However we as Debian are not obliged to apply some
sort of preemptive obedience. If there was an actual case and decision
that pixbros violates the law we would remove it ASAP from Debian. But
there has never been such a case and the game is already quite old.

What we need to check is: Does the game comply with the DFSG and does it
infringe the copyright of another programmer/artist. In my opinion that
is not the case here because the license is DFSG-compatible and the game
looks and works differently in style and artwork. We are not aware of a
verdict which states that the level resemblance infringes the rights of
another party.

This whole bug report reminds me of Giana Sisters, a game from the early
C64 and Amiga days that I enjoyed playing back then. Only many years
later I discovered that Nintendo, the makers of Super Mario Bros., had
asked the company who distributed Giana Sisters to remove the game from
all stores because it apparently infringed their trademark rights. Here
you have a case of trademark violation. (they also used the tagline "the
Brothers are history" and made money with it) There was never a court
case but if there was a similar case for pixbros, we surely would remove
it from Debian too.

On the other hand we have many open source games that try to clone an
older game but they look and behave often differently and use their own
graphics or they just reinvent the engine and then use the original
artwork (hence why those games are shipped in contrib)

Look at Pathological which is obviously a clone of Logical or Tuxpuck
which very much resembles the Shuffle Puck Cafe game. Are they non-free
too? I don't think so because I have played the original games and I can
tell you that the older games had both better graphics, more levels and
were more feature complete. They resemble each other but they are not on
a par and the risk that some company sues Debian just for distributing
them is highly unlikely because we make no money with them either.

So in short: I agree that we should remove the screenshots from the
original game, similar to how we handle screenshots on
screenshots.debian.net, but the mere level resemblance is not an issue
for Debian.

Regards,

Markus



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Bug#861612: pixbros: level designs appear to be non-free

2017-05-12 Thread Steve Cotton
On Fri, May 12, 2017 at 12:42:09AM +0200, Markus Koschany wrote:
> Am 10.05.2017 um 20:56 schrieb Adrian Bunk:
> > On Mon, May 01, 2017 at 03:50:21PM +0200, Steve Cotton wrote:
> >> ...
> >> Oh well at least this will resolve the Fenix-is-not-64-bit bugs.
> > 
> > Is pixfrogger also affected?
> 
> I think all images and graphics in pixfrogger are genuine and not copied
> from another (non-free) game.

Agreed, I think Pixfrogger is OK.  I was unsure about the sprites,
but only because it seems to have many different art styles, more
than I expect for the small number of images.

Without Pixbros it's easier to reimplement Pixfrogger's on another
game engine and drop Fenix.

> I had a look a this bug report and I disagree with the assumption that
> the level designs are non-free. You can clearly see by comparing the
> screenshots from the original game and pixbros, that textures and
> graphics are completely different. Yes, the level design of pixbros
> resembles those of the other non-free games but it is not a direct copy.

It looks like a direct copy to me, compare the platforms in 31 and 32:

https://sources.debian.net/data/main/p/pixbros/0.6.3-2/niveles/nivel31.png
https://sources.debian.net/data/main/p/pixbros/0.6.3-2/recursos/floors/floor31.png

https://sources.debian.net/data/main/p/pixbros/0.6.3-2/niveles/nivel32.png
https://sources.debian.net/data/main/p/pixbros/0.6.3-2/recursos/floors/floor32.png

All of the levels have that level of similarity, I've just chosen 31
and 32 because 21-30 have simpler designs.

Regards,
Steve



Bug#861612: pixbros: level designs appear to be non-free

2017-05-12 Thread Fabian Greffrath
Markus Koschany wrote:
> graphics are completely different. Yes, the level design of pixbros
> resembles those of the other non-free games but it is not a direct copy.
> Also the gameplay is much different. I am not aware of any design
> patents for those non-free games hence I am quite sure that there is no
> risk for Debian or any breach of law.

I agree wholeheartedly! If a game should be non-free because it resembles
another, commercial game, then we'd have a huge problem in Debian (and in
free software as a whole).

 - Fabian



Bug#861612: pixbros: level designs appear to be non-free

2017-05-11 Thread Markus Koschany
Am 10.05.2017 um 20:56 schrieb Adrian Bunk:
> On Mon, May 01, 2017 at 03:50:21PM +0200, Steve Cotton wrote:
>> ...
>> Oh well at least this will resolve the Fenix-is-not-64-bit bugs.
> 
> Is pixfrogger also affected?
> 

I think all images and graphics in pixfrogger are genuine and not copied
from another (non-free) game.

I had a look a this bug report and I disagree with the assumption that
the level designs are non-free. You can clearly see by comparing the
screenshots from the original game and pixbros, that textures and
graphics are completely different. Yes, the level design of pixbros
resembles those of the other non-free games but it is not a direct copy.
Also the gameplay is much different. I am not aware of any design
patents for those non-free games hence I am quite sure that there is no
risk for Debian or any breach of law.

However the screenshots in recursos/floors don't depict levels in
pixbros but those of the original games which are copyrighted. Since the
original games are non-free, I would suggest to remove them from the
tarball.

Regards,

Markus




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Bug#861612: pixbros: level designs appear to be non-free

2017-05-10 Thread Adrian Bunk
On Mon, May 01, 2017 at 03:50:21PM +0200, Steve Cotton wrote:
>...
> Oh well at least this will resolve the Fenix-is-not-64-bit bugs.

Is pixfrogger also affected?

> Steve

cu
Adrian

-- 

   "Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
   "Only a promise," Lao Er said.
   Pearl S. Buck - Dragon Seed



Bug#861612: pixbros: level designs appear to be non-free

2017-05-01 Thread Steve Cotton
Package: pixbros
Severity: serious
Justification: Policy 2.3

Hi all,

Pix Bros describes itself "as inspired" by Bubble Bobble, Snow Bros and
Tumblepop.

In the source package, there are screenshots of what I believe are Snow Bros'
levels 21-50 in the "recursos/floors" folder.

The levels for the game itself are in the "niveles" folder.  Comparing them
side-by-side, nivel21.png to floor21.png through to nivel50.png to floor50.png,
it seems these level designs are direct copies.

Wikipedia's entry for Snow Bros links to this source, please compare the
screenshots to PixBros' nivel1.png, nivel2.png and nivel3.png:
http://www.arcade-museum.com/game_detail.php?game_id=9601

Oh well at least this will resolve the Fenix-is-not-64-bit bugs.

Steve