Change Channels

How can I make it so if an object is listening on Channel 1 and I say

"/1 Switch to Channel 2"

it then listens on Channel 2 from now on?

To make it permenant for the object, regardless of whether or not it is in your inventory or newly rez'd, you would have to store the channel on a note card and then read/write to the card based on your "Switch to Channel" command.

Any example code or links to some example code?

But you cannot write to a notecard from a script. Instead, you could store such information in the object description, using llGetObjectDesc and llSetObjectDesc.

Baron

Yeah, Baron's right, I'm sure you could store it in lists too, but using llGetObjectDesc & llSetObjectDesc works just as well.

Compiled and tested:

string temp;

default
{
    state_entry()
    {
        llListen((integer)llGetObjectDesc(), "", llGetOwner(), ""); //begins listen from number found within object desc
    }
    
    on_rez(integer num)
    {
        llSetObjectDesc((string)0); //sets desc to 0, so its listening on normal chat at first
        llResetScript(); //reset to listen upon (new) owner
    }

    listen(integer channel, string name, key id, string message)
    {
        temp = llGetSubString(message,0,8);
        if(temp == "/channel ")
        {
            temp = llGetSubString(message,9,-1);
            llOwnerSay("Channel set: " + temp + "."); //say what you set it to
            llSetObjectDesc(temp); //set desc to what you said
            llResetScript(); //reset script, which then gets the desc again within state_entry
        }
    }
}

Oh yeah, to use;

Example: /channel 1

It would then only listen on channel 1, so only;

/1 /channel 0

Would get it back to normal chat again, or to another channel specified.

I tested and works great, but when you have many objects it does not help when I say /1 change channel 2 and they ALL change to channel 2 LOL.

How can I put this so the channel is on a notecard? That would solve my problems. /laughs

Rather than adding notecard functionality (which you don't need for something this simple), just set the object description to the desired channel you want, then reset the scripts in the object (or put in a reset command that calls llResetScript).

One problem with Neb's code if you want to take configured objects into inventory and rez them later with the changed channels, it will reset them to 0. If you don't need to do that, it's not a problem, of course.

string channel_card_name = "comm_channel";
key channel_card = NULL_KEY;
integer command_channel = 0;

default {

	state_entry() {
	
		if( llGetInventoryType( channel_card_name ) == INVENTORY_NOTECARD ) {
		
			channel_card = llGetNotecardLine( channel_card_name, 0 );
		}
	}
	
	dataserver( key Id, string Data ) {
    
		if( Id == channel_card ) {
        
			channel_card = NULL_KEY;
			if( Data != EOF ) {
        	
				command_channel = (integer)Data;
				llOwnerSay( "the communication channel is now " + Data + "." );
				llListen( command_channel, ... ); // set up listen filter as desired
			}
		}
	}
}

this shall read card with name defined in channel_card_name and react accordingly when the result is received. Useful when you want to keep the item description clear for other purposes, i guess ^^;

edit: you'll probably want to remove the old listen filter if one is present, so might be nice to store handle to listen filter somewhere there.

Why not check for the object name - or place a "trigger" next to the channel in the description ?

Eg
Decsription reads : 1,shoe

Code to read description

   list temp = llCSV2List( llGetObjectDesc() );
   integer channel = (integer)llList2String( temp,0 ) ; // get the channel 
   string trigger = llList2String( temp,1 ) ; // get the chat "trigger"
   integer old_listen = llListen( channel, "", llGetOwner(),"" );

Then in your listen

   listen ( integer ch, string nm, key id, string mess )
   {
      list temp = llParseString2List( mess,[" "],[] );
      string who = llList2String( temp,0 ) ; // get the name 
      string command = llList2String( temp,1 ) ; get the command
      string parameter = llLIst2String( temp,2 ) ; get the parameter
      //
      if ( who != trigger ) {return;}  // dont do anything - they didnt say the object trigger
      //
      if ( llToLower( command ) == "channel" ) 
      {
           new_channel = (integer)parameter;
           llListenRemove( old_listen ) ; 
           old_listen = lllisten( new_channel,"",llGetOwner(),"" );
           //
           llsetObjectDesc ( (string)new_channel + "," + trigger ) ; // store the new channel
      }
      //
    }

That way if oyu set the trigger to be shoe you have to say

/1 shoe channel 2

To change the shoe to channel 2 - if you say
/1 belt channel 2

It will be ignored.

What if the objects are named the same thing? Which they are.
This is why I need it ina notecard.