HUD Prim Description is not saved when detached [Solved]

[xtc4u]

I updated the code to work by using the child linked prim to store the position and size.  Thanks Parrish!

 

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I am trying to use the Description field to store info about a HUD, position and size.  I have used this technique in the past for many Prims but the first time in a HUD (it does have a child prim btw).  Anyway the code below seems to change the description fine if I leave the HUD on screen.  But as soon as I detach it , the description changes to (no description).  If I rez it to the ground, click it, take it, and re rez it to the ground the description remains.   So not as a HUD it works as expected, but if it is used as a HUD it loses the description that was changed via the script.  

I know I have discovered many things about a HUD that are different, is this one of them?

 

vector hudPosition;
vector hudSize;


HudPosSize2Desc()
{
    list lInfo = llGetPrimitiveParams([PRIM_POS_LOCAL,PRIM_SIZE]);
    string pos_size =   (string)llList2Vector(lInfo,0) + ";" + 
                        (string)llList2Vector(lInfo,1);
    
    llSetLinkPrimitiveParamsFast(2,[PRIM_DESC,pos_size]);
    llOwnerSay("HudPosSize2Desc() called " + (string)pos_size);
}

HudPosSizeFromDesc()
{
    string info = llList2String(llGetLinkPrimitiveParams(2,[PRIM_DESC]),0);
    list linfo = llParseString2List(info,[";"],[]);

    hudPosition = (vector)llList2String( linfo,0);
    hudSize    = (vector)llList2String( linfo,1);
    
    llSetLinkPrimitiveParamsFast(LINK_THIS,[PRIM_POSITION,hudPosition,PRIM_SIZE,hudSize]);
}
      
default
{
    state_entry()
    {
        HudPosSizeFromDesc();
        llOwnerSay("Position: " + (string)hudPosition);
        llOwnerSay("Size: " + (string)hudSize);         
    }
    
    on_rez(integer start_param)
    {
        llResetScript();
    }
 
    touch_end(integer s)
    {
        HudPosSize2Desc();        
    }
}

 

[Qie Niangao]

Not only HUDs, any attachment. It's a permanent bug.

[Previously]

http://lslwiki.net/lslwiki/wakka.php?wakka=llGetObjectDesc

[Parrish Ashbourne]

Just save it to a child prim's description, a child prim wont lose the info.

[xtc4u]

That solved it.  I will modify to code above to reflect that change.

[Rufus Darkfold]

If you need to change the parent prim description or rename it,  you need to drop the attachment and pick it up again before detaching it.