[Opensim-dev] hypergrid status

[Diva Canto]

Justin,

The hypergrid is a great example of how to make new architectures on top 
of opensim, but it's not a good example of how to write applications 
with opensim, which is what most people will want to know. Technically, 
there is no difference between one and the other, it's all done by using 
and extending opensim. Psychologically there is a big difference between 
something like the hypergrid and something like the traffic simulation 
app. Most people will feel that they want to write something like the 
traffic simulation, but the hypergrid feels like infrastructure that 
they aren't interested in doing.

So what we really really need is a few good examples of app-flavored 
modules. I have two in line for this, I will use them to write a 
tutorial. But not before the API stabilizes. For example the change you 
guys are doing in SOG/SOP is critical for these apps; they extend SOG. 
(I'm all for improving the SOG situation, so don't read this as a call 
for not making the proposed changes... I'll just wait.)

Crista

Justin Clark-Casey wrote:
> Michael Wright wrote:
>   
>> +1000000.
>>
>> I think we all/most want to see core smaller than it is. Its just 
>> getting to the point of having stable API's so we can start moving 
>> things out.
>>
>> And totally agree that we should do more to get the message out that 
>> opensim is a platform, that just has a reference application included 
>> that makes it act basically like SL.
>>     
>
> +lots
>
> I think to some extent this is also pending a revision of the region module system to make it easy to plug in external 
> modules with their own configuration files (OpenSim.ini.example is getting to be a monster).  Of course, we've been 
> saying that for ages now - consider it a long feature lead up :)
>
> I've never actually tried to build a completely external region module myself so perhaps it's not as tough as I think. 
> Cristina, your forge code will provide a good example of this (assuming that you have region modules).
>
> Of course, from your work it sounds like there are also framework areas that could be better modularized.
>
>   
>>
>> */Cristina Videira Lopes <lopes at ics.uci.edu>/* wrote:
>>
>>     Gosh, I don't know how many more times I have to say this: the
>>     opensim API is just wonderful! Just look at the hypergrid code, and
>>     you will see. It's all done via inheritance, delegation, and region
>>     modules. Rather than looking at it as an annoyance, I have found it
>>     to be an exciting constraint to code it up with minimum interference
>>     on the core. All patches I have submitted in the last couple of
>>     weeks have been to make things friendly for subclassing, that's all.
>>
>>     My only comment to you core developers is that I see several things
>>     in the core that probably shouldn't be there. Cores should be as
>>     small as possible.
>>
>>     When people finally realize that opensim is only casually an
>>     application that looks like SL but, more importantly, a framework
>>     that can be extended, I think we will start to see a lot more
>>     deviation from SL. The message is still not out there. (I promised
>>     to put out my traffic sim code as an example, but then the hypergrid
>>     got control over me...)
>>
>>     Diva / Crista
>>
>>     stefan at tribalmedia.se wrote:
>>     
>>>     Quoting James Stallings II <james.stallings at gmail.com>:
>>>
>>>       
>>>       
>>>>     This is the interoperability fast-track - I love it.
>>>>         
>>>>         
>>>     Personally, I love the fact that Diva claims it's all been very simple 
>>>     to code, due to the modularity and malleability of OpenSim. We should 
>>>     all pat ourselves on the back and keep the torch of decoupling high 
>>>     wherever we run.
>>>
>>>     <3
>>>
>>>     /Stefan
>>>
>>>
>>>
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>>>       
>>>       
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>>
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>
>
>   

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