Help with a Global Variable

Could someone explain why this does not work?

key gTX_0   =   "7b08ac48-d7a7-2050-071e-09f7845cc18d";
key gTX_1   =   "9beba3c0-f7f4-9261-808e-d51a031697ad";

default
{
state_entry()
{
     llListen(0, "", llGetOwner(), "");
}

listen(integer chan, string name, key id, string mess)
{
if( llToLower( llGetSubString( mess, 0, 3) ) == "scr ")
        {
            string SCR = llToLower( llGetSubString(message, 4, -1) ) ;
            
            llSetTexture("gTX_"+SCR ,5);
        }
}
}

The way I see it, the Global is there...but when I type scr 0 or scr 1, I get errror could not find texture gTX_0 (or gTX_1 respectively)...??? It is like the script expects the Object to have the Texture in its Inventory...rather than using the Global key that is provided. Am I doing something wrong (obviously I am) or do I just not "get-it" (most probable too)?

It's looking for a texture with a name like "gTX_0" in the inventory of the object. It looks like maybe you're trying to do something similar to an eval() to which LSL has no equivalent.

Two alternatives to what you are doing:

Instead of separate variables for each key, put your keys in a list.
[code]
list textures = ["7b08ac48-d7a7-2050-071e-09f7845cc18d", "9beba3c0-f7f4-9261-808e-d51a031697ad"];

default
{

state_entry()
{
llListen(0, "", llGetOwner(), "";
}

listen(integer chan, string name, key id, string mess)
{
if( llToLower( llGetSubString( mess, 0, 3) ) == "scr "
{
string SCR = llToLower( llGetSubString(message, 4, -1) ) ;

llSetTexture(llList2Key(textures, (integer)SCR), 5);
}
}
}
[/code]

Or, get rid of those global keys altogether and place the texture assets in the contents of the object and name them gTX_0 and gTX_1.

Thank you for pointing that out.

I was originally consdidering a list of keys too, but stuffing prims gets tiring lol. Ill go with the list

Are these linked prims in a single object? If so, you could use a notecard for a slower running but easier to maintain solution, especially if the number of textures or the keys can change. Then you just update the notecard, and all the prims pick up the new textures.

I haven't checked this for syntax, so consider this psuedocode

In the main reader script, use the number extracted from the listen string to read a line in a notecard. The notecard contains one texture key per line. Then send the texture to the other prims in a link message:

...

key notecardQuery;

listen(...)
{
...
    string SCR = llToLower( llGetSubString(message, 4, -1) ) ;
            
    notecardQuery = llReadNotecardLine("notecard name", (integer)SCR));
}

dataserver(key query_id, string data) 
{
    if (query_id == notecardQuery) 
    {
        if (data != EOF) 
        {    // We got a valid key from the notecard
            llMessageLinked(LINK_SET, 0, "", (key)data);
        }
    }
}

And the receiver script, which goes into every prim including the one which has the reader script:

...

link_message(integer sender, integer num, string str, key id)
{
    llSetTexture(id, 5);
}

Like I said, the code probably won't compile, but that's the idea

It looks like you were trying to construct a variable name, which you cannot do.