Re: The (ab) use of iObject

Hey,

I believe that iObject was used for regions before collections replaced
them.
I actually wasn't aware of a different purpose for iObject :)

I have no objections to having specific interfaces for features like
collections though.
Would this be a big API breaker in any way?

Mike

On 3 September 2012 14:00, Jorrit Tyberghein <[email protected]>wrote:

> Hi all,
>
> In CS we use the iObject system for various things. For example
> collections are iObjects' which have
> other iObjects' as children. So a mesh, sector, or other CS object is
> attached to a collection by having
> the collection as its parent.
>
> Also there is iSaverFile. This interface represents a CS file to save too.
> Engine objects (like
> meshes and so on) are attached to iSaverFile so that the saver plugin
> knows which objects to
> save.
>
> See the problem? An iObject can have only one parent. So what does one
> have to do when
> one wants to use collections and in addition iSaverFile?
>
> There are other examples. CEL also uses iObject for some usages (but
> luckily in a safe direction
> from a CS object to an internal CEL object) and also the new physics will
> (I believe) use iObject.
>
> I think the problem is that iObject is a very generic interface and as
> such I think it should only
> be used for generic situations. The original purpose of iObject was an
> interface that allowed a game
> developer to attach game logic to CS objects. That's exactly what CEL is
> doing. But that's not
> what CS collection system and iSaverFile are doing.
>
> I think it would be best if fundamental and internal CS facilities not
> touch this generic iObject
> system but instead have their own specific system. That way collisions are
> less likely and
> you can actually use things together. So for example, the collection
> system in CS should not
> base itself on the iObject system at all but use a custom parent/child
> relationship.
>
> Opinions please?
>
>
> --
> Project Manager of Crystal Space (http://www.crystalspace3d.org)
> and CEL (http://cel.crystalspace3d.org)
> Support Crystal Space. Donate at
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> Personal page: http://users.telenet.be/jorritTyberghein/
>
>
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-- 
- Mike

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