[Bf-committers] Node system for game logic

[Hart's Antler]

The proposal at http://wiki.blender.org/index.php/Dev:Source/GameEngine/NodalLogic
is huge, great ideas, but maybe its overkill.

Nodes are cool, better than what we have now, but i think "Scratch-style" logic blocks would be simple and even more clear. http://scratch.mit.edu/

One issue i see is there are many changes at the C level that need to be made to leverage the current node interface.  Why not take a pure python approach, and use ctypes where needed?  If the UI is going to be general and compatible with other engines like Panada3d, etc.. it really should use a standard GUI toolkit like Qt or Gtk.

-brett


--- On Sat, 5/28/11, Benoit Bolsee <benoit.bolsee at online.be> wrote:

> From: Benoit Bolsee <benoit.bolsee at online.be>
> Subject: Re: [Bf-committers] Node system for game logic
> To: bf-committers at blender.org
> Date: Saturday, 28 May, 2011, 9:49 AM
> Hi Sjoerd,
> 
> Thanks for sharing the hive system. I've started to read
> the
> documentation and so far I'm impressed by what you have
> done. I already
> have a good idea of the system but I still have to figure
> out how you
> have achieved all the goals that I stated in my proposal.
> At some point
> I will contact you when I know enough to not waste your
> time with stupid
> questions.
> 
> As far as licensing is concerned, I would prefer if you go
> to a
> BSD-style license but you should in any case take a firm
> and definitive
> position quickly to cut short what seems to be an endless
> discussion on
> licensing again ;-)
> 
> Regards,
> Benoit
> 
> > 
> > Message: 1
> > Date: Thu, 26 May 2011 14:55:19 +0200
> > From: Sjoerd de Vries <sjdv1982 at gmail.com>
> > Subject: [Bf-committers] Node system for game logic
> > To: bf-committers at blender.org
> > Message-ID: <BANLkTimDz3cDduuLbCqm8fELMcqF0VF0xQ at mail.gmail.com>
> > Content-Type: text/plain; charset=ISO-8859-1
> > 
> > Hi everyone,
> > 
> > I would like to present to you the hive system, a
> working 
> > node system for game logic (and other things).
> > 
> > It implements the complete list of goals of Benoit's
> Nodal 
> > Logic proposal: 
> > http://wiki.blender.org/index.php/Dev:Source/GameEngine/NodalLogic
> > Some of the design decisions are different, but the
> hive 
> > system contains all of his features.
> > 
> > The source code is available under GPL:
> > 
> > http://launchpad.net/hivesystem
> > 
> > It also has a GUI for editing hivemaps (node graphs).
> It is 
> > basic and quirky but it works. This makes it possible
> for 
> > non-programmers to create and modify game logic. I
> have made 
> > a screencast that demonstrates this for a simple 3D
> scene:
> > 
> > http://launchpad.net/hivesystem/trunk/0.7/+download/screencast.swf
> > 
> > New nodes and hives can easily be built in Python.
> However, 
> > the coding style is different from normal Python
> scripts. I 
> > have written a long manual with many examples. If
> anything is 
> > unclear, please tell me.
> > 
> > The main limitation is that there are no bindings yet
> to the 
> > BGE, only to Panda3D. It still needs to be ported to 
> > Python3.2, and I am not very familiar with the BGE
> source 
> > code. Also, a lot of important nodes (sound, physics,
> mouse 
> > picking, networking) are still missing.
> > 
> > I am looking forward to join forces with Benoit and
> Sven, and 
> > with anyone else who is interested. Any feedback is
> welcome!
> > 
> > cheers
> > 
> > Sjoerd
> > 
> 
> 
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