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[ Picked text/plain from multipart/alternative ]
Maybe you could provide us with an example. An entity that has the flag
FL_EDICT_ALWAYS and a child of that entity with a PVS check.

Anyway, can't you just prevent that the entity goes dormant on the client?
(C_BaseEntity::NotifyShouldTransmit)

On 9/9/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]>
wrote:
>
> Not sure I understand what's bad about all of this.  Do you have a
> concrete repro scenario from HL2DM, or does this only occur in mod code?
>
> At 2006/09/08 12:30 AM, Ben Everett wrote:
> >Good catch!
> >
> >Add it to the bugzilla, as you have a better idea of what is going on
> than I
> >do (busy bug fixing my own code). An interesting condition to say the
> least,
> >anyone else w/ experience in this field wanting to comment?
> >
> >-----Original Message-----
> >From: [EMAIL PROTECTED]
> >[mailto:[EMAIL PROTECTED] On Behalf Of Daniel Menard
> >Sent: Friday, September 08, 2006 12:12 AM
> >To: hlcoders@list.valvesoftware.com
> >Subject: [hlcoders] Interesting Hierarchy Bug
> >
> >Well I've found an interesting hierarchy related bug. I figured I
> >should notify the list about this one because it took me a while to
> >wrap my head around it. I'm not sure if this has been fixed in the new
> >SDK update (my mod is still running on the old codebase until we have
> >time to merge in the new SDK), but I did a quick search in the known
> >issues list and the new source and there doesnt appear to be a fix.
> >
> >It looks like a comment was left regarding parent attachments in the
> >SDK update, but it doesnt resolve the parent issue. Anyways this bug
> >occurs when a FL_EDICT_ALWAYS entity is parented to a PVSCHECK entity.
> >When the PVS entity becomes dormant, it will call UnlinkFromHierarchy
> >which will unlink it from its parent and do the same for all its
> >children.
> >
> >The trouble comes when the PVSCHECK entity comes back into view. The
> >entity loses its dormant state and it begins to move again, but the
> >FL_EDICT_ALWAYS entity stops following (atleast client side). The
> >reason being that the hierarchy system expects a full entity update
> >from the server when it comes back into view (which would fix up the
> >parent of the ALWAYS entity), but since the entity is always
> >transmitted, it never receives the message to reset the parent because
> >server side the parent never changed and the entity never went
> >dormant.
> >
> >I have yet to find a concrete solution to the problem (though its only
> >been about an hour or so since I figured it out), but I am beginning
> >the think UnlinkHierarchy should never get called when an entity goes
> >dormant in the first place. The EHandles would return NULL if the
> >entity was ever removed and if anything is parented to an entity that
> >is dormant it should stay where it is without unlinking. I'm weary of
> >removing the call though, because it may break in some odd condition.
> >
> >I won't be able to make the change to my codebase until tomorrow, but
> >some comments would be appreciated. I could add this to the Known
> >Issues list in the wiki once a stable solution is found.
> >
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> >
> >
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