NPC Automator 2.0

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Contents

Instruction Notecard

For this script to work, ossl must be enabled with a threat level of VeryHigh.

NPCAutomator uses it's own kind of very simple script. All the commands are in the form of:

Rules

  • Command|optionalvalue|optionalvalue|
  • Empty fields are maked by a "#" sign.
  • Commands are not case sensitive.
  • Spaces do matter! Do not use whitespace in commands or values that are not mean as text.

Commands

  • NpcCreate|Test Npc|<1,1,1>| This creates an npc named Test NPC at 1,1,1 (relative to object position).
  • Wait|5|#| This makes the script sleep for 5 seconds. Build in waits at regular intervals to prevent flooding and make the npc come over more natural.
  • GotoLine|4|#| This makes the script continue at the specified line number. The first line is 0. You can also replace the number with a label name.
  • NpcFlyTo|<128,128,128>|#| This makes your npc fly to these coordinates (these are region coords).
  • NpcMoveTo|<128,128,22>|#| Same as NpcFlyTo, but walking.
  • NpcSetRot|Random|#| Sets a timer that changes npc rotation to random angles at a set interval.
  • NpcPlayAnimation|animationname|#| Plays an animation (has to be present in prim inventory).
  • NpcStopAnimation|animationname|#| Stops the animation.
  • NpcSay|Hey! I'm an npc :)|#| Makes the npc say stuff.
  • NpcSit|objectkey|#| Makes the npc sit on object.
  • NpcDelete|#|#| Remove the NPC.
  • GreetStrangerFirst|Hey, |#| Message that is said before avatar name when meeting someone new.
  • GreetStrangerLast|. Nice meeting you.|#| Message that is said after the avatar name when meeting someone new.
  • GreetAquaintanceFirst|Hey, |#| Message that is said before avatar name when running into an aquaintance.
  • GreetAquaintanceLast|. Good to see you again!|#| Message that is said after avatar name when running into an aquaintance.
  • AddTrigger|Help|15| A trigger is a word that triggers a reaction in the npc. In this case, when someone says the word help, the code jumps to line 14. Instead of a line number you can also specify a label name.
  • RemoveTrigger|Help|#| Removes a trigger word.
  • GotoTrigger|#|#| This command makes the code check if a trigger word has been said and then jumps to the right line. The code waits for this command to make sure it doesn't skip lines that are important. So don't forget to include this.
  • Label|Labelnaam|#| A label is a fixed point in the notecard that you can refer to so you don't have to keep counting lines.

Example

The notecard HAS to be named "-NPC AI". It's case sensitive.

NpcCreate|Test NPC|<1, 1,1>|#|
GreetAquaintanceFirst|You again! What are you doing here, |#|
GreetAquaintanceLast|?|#|
AddTrigger|help|help|
GOTOLINE|loop|#|
Label|help|#|
NpcSay|Do you want me te help you?|#|
AddTrigger|yes|yes|
GOTOLINE|loop|#|
Label|yes|#|
NpcSay|Sorry, I don't think I'm the right person for the job.|#|
RemoveTrigger|yes|#|
GOTOLINE|loop|#|
Label|loop|
WAIT|1|#|
GOTOTrigger|#|#|
NpcMoveTo|<112,112,22>|#|
GOTOTrigger|#|#|
WAIT|3|#|
GOTOTrigger|#|#|
NpcMoveTo|<109,112,22>|#|
GOTOTrigger|#|#|
GOTOLINE|loop|#|

Planned

  • NpcStandUp
  • NpcLookAt
  • NpcAttach
  • SaveAppearance
  • Revising way notecards are accessed, dataserver event has to go.

Commands

You can issue commands to the script directly too. I did however not revise this functionality and can't say if it works or not. For instructions, you'll have to read the script.

NPC Automator 2.0 script

You don't need to change a thing about this script. Just put it in a prim together with the instruction notecard and maybe an appearance notecard and you're done.

debug(string str)
{
    if(debugger)
    { 
        llOwnerSay(str);
    }
}
 
list tempdata;
vector offset = <0,0,0>;
integer rezcount= 0;
integer debugger= FALSE;
integer rand= FALSE;
key npc = NULL_KEY;
string npcfirstname ;
string npclastname;
vector npcrezpos = <202,119,25>;
string detectname = "NPC Name";
integer channel = 77;
integer line;
float delay = 1;
string config = "-NPC AI";
key readLineId;
string NpcCommand;
string NpcValue;
string command;
string value ="value";
string extra="extra";
string aq;
list greet;
list aqaintance;
string hiufirst="Hello, ";
string hiulast=". Nice to meet you!";
string hikfirst="Good to see you again, ";
string hiklast=".";
list triggers;
list goto;
list gotoqueue;
list labels;
list labelpos;
 
ResetScript()
{
    //llResetScript()
    tempdata =[];
    npcfirstname = "";
    npclastname = "";
    rezcount=0;
    npc = "";
    line = 0;
    triggers=[];
    goto=[];
    gotoqueue=[];
    greet=[];
    labels=[];
    labelpos=[];
    init();
    state default;
}
 
 
integer get_aqaintance(string name)
{
    if(llListFindList(aqaintance,[name])<0){return 0;}
    else{return 1;}    
}
 
set_aqaintance(string name)
{
        string aq=osGetNotecard("Aqaintances");
        aq+=","+name;
        aqaintance=llCSV2List(aq);
        llRemoveInventory("Aqaintances");
        osMakeNotecard("Aqaintances",[aq]);
}
 
init_labels()
{
    debug("Starting label initialization");
    integer i=0;
    string templine;
    while (templine != EOF) {
        templine=osGetNotecardLine(config,i);
        debug("Reading line: " + templine);
        list templist = llParseString2List(templine,["|"],[]);
        string tempcommand = llToLower(llList2String(templist,0));
        string tempvalue = llList2String(templist,1);
        if(tempcommand=="label")
        {
            labels=labels + [(string)tempvalue];
            labelpos=labelpos + [(integer)i];
            debug("Added label " + tempvalue + " to labels.");
        }
        i++;
    }
}
 
integer label2line(string lblname)
{
    integer tmppos=llListFindList(labels, llToLower(lblname));
    if(tmppos<0)
    {
        debug("label " + lblname + "not found, return to line 0");
        return 0;
    }
    else{
        return llList2Integer(labelpos, tmppos);
    }
}
 
integer IsInteger(string var)
{
    integer i;
    for (i=0;i<llStringLength(var);++i)
    {
        if(!~llListFindList(["1","2","3","4","5","6","7","8","9","0"],[llGetSubString(var,i,i)]))
        {
            return FALSE;
        }
    }
    return TRUE;
}
 
init()
{
    init_labels();
    //read aquaintances notecard
    aq=osGetNotecard("Aqaintances");
    aqaintance=llCSV2List(aq);
    llSensorRepeat("",NULL_KEY,AGENT,30.0,PI,15);
 
 
    // reset configuration values to default
    NpcCommand = "Unknown";
    NpcValue = "None";
 
    // make sure the file exists and is a notecard
    if(llGetInventoryType(config) != INVENTORY_NOTECARD)
    {
        // notify owner of missing file
        debug("Missing inventory notecard: " + config);
        return; // don't do anything else
    }
 
    // initialize to start reading from first line
    line = 0;
 
    // read the first line
    readLineId = llGetNotecardLine(config, line++);
 
}
processConfiguration(string data)
{
    // if we are at the end of the file
    if(data == EOF)
    {
        // notify the owner
        debug("We are done reading the configuration");
        // reset
        line=0;
    }
 
    // if we are not working with a blank line
    if(data != "")
    {
        // if the line does not begin with a comment
        if(llSubStringIndex(data, "#") != 0)
        {
            // find first pipe "|" and smoke it
            integer i = llSubStringIndex(data, "|");
 
            // if line contains equal sign
            if(i != -1)
            {
                tempdata = llParseString2List(data,["|"],[]);
                command = llToLower(llList2String(tempdata,0));
                value = llList2String(tempdata,1);
                extra = llDumpList2String(llList2List(tempdata,2,-1)," ");
 
                debug( " Command " +command + " Value " + value + " Extra " +extra);
                if(command == "npccreate" && value !="" )
                {
                    //NpcCommand = value;
                    list tempname = llParseString2List(value,[" "],[]);
                    string fname = llList2String(tempname,0);
                    string lname = llList2String(tempname,1);
                    npcfirstname = (string)fname;
                    npclastname = (string)lname;
                    offset = (vector)extra;
                    if (CardExists(npcfirstname + "_" + npclastname))
                    {
                        debug("A saved appearance for " + npcfirstname + " " + npclastname + " was found.");
                        npc = osNpcCreate(npcfirstname, npclastname, llGetPos()+offset, npcfirstname + "_" + npclastname);
                        lognpc(npc);
                        debug("Created NPC " + (string)npc + " with the name " + npcfirstname + " " + npclastname + ".");
 
                    }
                    else{
                        debug("No appearance for " + npcfirstname + " " + npclastname + " found. Copying your appearance.");
                        osOwnerSaveAppearance(npcfirstname + "_" + npclastname);
                        npc = osNpcCreate(npcfirstname, npclastname, llGetPos()+offset, npcfirstname + "_" + npclastname);
                        lognpc(npc);
                        debug("Created NPC " + (string)npc + " with the name " + npcfirstname + " " + npclastname + "." +(string)npcrezpos);
                        debug( "Created " + npcfirstname + "_" + npclastname + " @ " +extra);
                        // color
                    }
                }
                else if(command == "wait")
                {
                    llSetTimerEvent((float)value);
                    debug( "wait " + value);
                }
                else if(command == "gotoline")
                {
                    if(IsInteger(value))
                    {
                        line = (integer)value;
                    }
                    else{
                        line = label2line(value);
                    }
                    debug( "go to line " + value);
                }
                else if(command == "npcflyto")
                {
                    osNpcMoveToTarget(npc, (vector)value, OS_NPC_FLY);
                    debug( "move to " + value);
                }
                else if(command == "npcmoveto")
                {
                    osNpcMoveToTarget(npc, (vector)value, OS_NPC_NO_FLY);
                    debug( "move to " + value + " " +extra);
                }
                else if(command == "npcsetrot")
                {
                    if(value == llToLower("set"))
                    {
                        rand = FALSE;
                        debug( "No Rotaion Timer");
                    }
                    else if(value == llToLower("random"))
                    {
                        rand = TRUE;
                        debug( "Random rotation set every timer");
                    } 
                }
                else if(command == "npcplayanimation")
                {
                    osNpcPlayAnimation(npc, value);
                    debug( "animate " + value);
                }
                else if(command == "npcstopanimation")
                {
                    osNpcStopAnimation(npc, value);
                    debug( "stop animate " + value);
                }
                else if(command == "npcsay")
                {
                    osNpcSay(npc, value);
                    //debug( "stop animate " + value);
                }
                else if(command == "wait")
                {
                    delay = (float)value;
                    debug( " setimer " + value);
                }
                else if(command == "npcsit")
                {
                    osNpcSit(npc,(key)value,1);
                }
                else if(command == "npcdelete")
                {
                    NpcDelete();
                }
                else if(command == "greetstrangerfirst")
                {
                    hiufirst=value;
                }
                else if(command == "greetstrangerlast")
                {
                    hiulast=value;
                }
                else if(command == "greetaquaintancefirst")
                {
                    hikfirst=value;
                }
                else if(command == "greetaquaintancelast")
                {
                    hiklast=value;
                }
                else if(command == "addtrigger")
                {
                    integer tmpline;
                    triggers=triggers + [llToLower(value)];
                    if(IsInteger(extra))
                    {
                        tmpline = (integer)extra;
                    }
                    else{
                        tmpline = label2line(extra);
                    }
                    goto=goto + [(integer)tmpline];
                    debug("Added trigger \"" + value + " with goto value of " + extra + ".");
                }
                else if(command == "removetrigger")
                {
                    integer pos=llListFindList(triggers,llToLower(value));
                    if(pos<0){debug("Trigger not found");}
                    else{
                        triggers=llDeleteSubList(triggers,pos,pos);
                        goto=llDeleteSubList(goto,pos,pos);
                        debug("Deleted trigger with value \"" + value);
                    }
                }
                else if(command == "gototrigger")
                {
                    integer length=llGetListLength(gotoqueue);
                    if(length>0)
                    {
                        integer goto=llList2Integer(gotoqueue, 0);
                        line = goto;
                        gotoqueue=llDeleteSubList(gotoqueue,0,0);
                        debug( "loops back to line " + goto);
                    }
                }
                else if(command == "label")
                {
                    debug("Now at label " + value);
                }
                // unknown name osNpcSit(npc,"bca94960-4fd9-4512-85e1-fd7faf130aba",1);
                else{
                    //debug("Unknown configuration value: " + name + " on line " + (string)line);
                }
            }
            else // line does not contain equal sign
            {
                debug("Configuration could not be read on line " + (string)line);
            }
        }
    }
    // read the next line
    // readLineId = llGetNotecardLine(config, line++);
}
 
// Enter multiple NPCs into a list just incase of name change, Send linked message to other script(s) if needed
lognpc(key npcl)
{
    llSetObjectDesc(npc);
    dead = FALSE;
    integer i;
    for (i=0;i<rezcount;i++)
    {
        npc = osNpcCreate(npcfirstname, npclastname + " " + (string)i, llGetPos()+offset, npcfirstname + "_" + npclastname);
        llMessageLinked(LINK_THIS,-5,"npcid",npc);
    }
}
 
integer CardExists(string cardname)
{
    if (llGetInventoryType(cardname) == INVENTORY_NONE)
    {
        return FALSE;
    }
    else{
        return TRUE;
    }
}
 
NpcCreate(list cmdline, integer cmdlength)
{
    // Create a new NPC. Use an existing appearance if a
    // notecard matching the given name exists, otherwise
    // use the creator's appearance.
    if (npc != NULL_KEY)
    {
        debug(llGetObjectName() + " thinks you still have an active NPC. Either delete that NPC, use the clearid command, or reset the scripts in " + llGetObjectName() + ".");
        return;
    }
    if (cmdlength != 3)
    {
        debug("Command usage: create <firstname> <lastName>");
        return;
    }
    npcfirstname = llList2String(cmdline, 1);
    npclastname = llList2String(cmdline, 2);
    if (CardExists(npcfirstname + "_" + npclastname))
    {
        debug("A saved appearance for " + npcfirstname + " " + npclastname + " was found.");
        npc = osNpcCreate(npcfirstname, npclastname, llGetPos()+offset, npcfirstname + "_" + npclastname);
        lognpc(npc);
        debug("Created NPC " + (string)npc + " with the name " + npcfirstname + " " + npclastname + ".");
    }
    else{
        debug("No appearance for " + npcfirstname + " " + npclastname + " found. Copying your appearance.");
        osOwnerSaveAppearance(npcfirstname + "_" + npclastname);
        npc = osNpcCreate(npcfirstname, npclastname, llGetPos()+offset, npcfirstname + "_" + npclastname);
        lognpc(npc);
        debug("Created NPC " + (string)npc + " with the name " + npcfirstname + " " + npclastname + ".");
        return;
    }
}
 
NpcSave(list cmdline, integer cmdlength)
{
    // Save the NPC's current appearance to a notecare. Accepts a
    // notecard name as an optional parameter. Card name will be
    // the NPC's name if not specified, i.e.: John_Smith
 
    if (npc == NULL_KEY)
    {
        debug("Can't save appearance because no NPC has been created. Create an NPC, or use setid to specify a rezzed NPC.");
        return;
    }
    if (cmdlength = 1)
    {
        osNpcSaveAppearance(npc, npcfirstname + "_" + npclastname);
        debug("NPC appearance saved as: " + npcfirstname + "_" + npclastname);
        return;
    }
    else if (cmdlength = 2)
    {
        osNpcSaveAppearance(npc, llList2String(cmdline, 1));
        debug("NPC appearance saved as: " + llList2String(cmdline, 1));
        return;
    }
    else{
        debug("Command usage: save [<cardname>]");
        return;
    }
}
 
NpcLoad(list cmdline, integer cmdlength)
{
    // Load an appearance from a notecard, and apply it to the NPC.
    if (npc == NULL_KEY)
    {
        debug("Cannot load an appearance because there is no NPC. Either create one, or assign the UUID of an existing NPC with setid.");
        return;
    }
    if (cmdlength == 1)
    {
        // No appearance was specified, so use the notecard created when the
        // NPC was created.
        if (CardExists("Test_NPC"))
        {
            osNpcLoadAppearance(npc, "Test_NPC");
            debug("Default appearance loaded.");
            return;
        }
        else{
            debug("Cannot load an appearance. No NPC may have been created yet.");
            return;
        }
        return;
    }
    else if (cmdlength == 2)
    {
        // Attempt to load an appearance notecard from a specified notecard.
        string cardname = llList2String(cmdline, 1);
        if (CardExists(cardname))
        {
            osNpcLoadAppearance(npc, cardname);
            debug("NPC appearance loaded from the notecard " + cardname + ".");
            return;
        }
        else{
            debug("The notecard " + cardname + " was not found.");
            return;
        }
        return;
    }
    else if (cmdlength == 3)
    {
        // Attempt to load an appearance notcard associated with provided NPC name.
        string cardname = llList2String(cmdline, 1) + "_" + llList2String(cmdline, 2);
        if(CardExists(cardname))
        {
            osNpcLoadAppearance(npc, cardname);
            debug("Loaded the stored appearance for " + llList2String(cmdline,1) + " " + llList2String(cmdline, 2) + ".");
            return;
        }
        else{
            debug("Cannot load the requested appearance. No notecard associated with " + llList2String(cmdline, 1) + " " + llList2String(cmdline, 2) + " was found.");
            return;
        }
        return;
    }
    else{
        debug("Command usage: load [<cardname> | <firstname> <lastname>]");
    }
}
 
NpcDelete()
{
    // Derez the NPC and clear associated info.
    if (npc == NULL_KEY)
    {
        debug("Can't delete because no NPC has been created. Create an NPC, or use setid to specify a rezzed NPC.");
        return;
    }
    string name = llKey2Name(npc);
    osNpcRemove(npc);
    npc = NULL_KEY;
    dead = TRUE;
    llSetObjectDesc(NULL_KEY);
    // npcfirstname = "";
    //npclastname = "";
    debug("Deleted the NPC named " + name + ".");
}
 
NpcCopy()
{
    // Copy the appearance of the user to the NPC, and save it to a default
    // notecard named Test_NPC.
    if (npc == NULL_KEY)
    {
        debug("Cannot copy your appearance to the NPC because no NPC exists. Either create one, or assign the UUID of an existing NPC with setid.");
        return;
    }
    osOwnerSaveAppearance("Test_NPC");
    osNpcLoadAppearance(npc, "Test_NPC");
    debug("Your appearance has been saved to the NPC.");
    return;
}
 
NpcSetUUID(list cmdline, integer cmdlength)
{
    // Assign currently active agent UUID.
    if (cmdlength < 2 || cmdlength > 3)
    {
        debug("Command usage: setid <UUID>");
        debug("Command usage: setid <firstname> <lastname>");
        return;
    }
    key newUUID = llList2Key(cmdline, 1);
    string name = llKey2Name(newUUID);
    if (cmdlength == 2)
    {
        if (name != "")
        {
            // Set the active NPC UUID to the one provided.
            debug("This UUID matches the entity named " + name + ".");
            npc = newUUID;
            llSetObjectDesc(newUUID);
            list namelist = llParseString2List(name, [" "], []);
            npcfirstname = llList2String(namelist, 0);
            npclastname = llList2String(namelist, 1);
            debug("The NPC's UUID is now " + npc + ".");
            return;
        }
        else{
            debug("No existing NPC was found for this UUID.");
            return;
        }
    }
    if (cmdlength = 3)
    {
        // Attempt to detect and assign the NPC UUID by detecting it from
        // a provided agent name.
        detectname = llList2String(cmdline, 1) + " " + llList2String(cmdline, 2);
        state DetectAgent;
    }
}
 
CommandExec(list cmdline)
{
    // Commands are interpreted and executed in this function.
    string cmd = llToLower(llList2String(cmdline, 0));
    integer cmdlength = llGetListLength(cmdline);
    if (cmd == "create")
    {
        rezcount=0;
        NpcCreate(cmdline, cmdlength);
        return;
    }
    else if (cmd == "setupnpc")
    {
        npc = osNpcCreate(npcfirstname, npclastname, llGetPos() + <0, 1, 0>, "Test_NPC");
        lognpc(npc);
        return;
    }
    else if (cmd == "save")
    {
        NpcSave(cmdline, cmdlength);
        return;
    }
    else if (cmd == "load")
    {
        NpcLoad(cmdline, cmdlength);
        return;
    }
    else if (cmd == "delete")
    {
        NpcDelete(); 
        return;
    }
    else if (cmd == "copy")
    {
        NpcCopy();
        return;
    }
    else if (cmd == "setid")
    {
        NpcSetUUID(cmdline, cmdlength);
        return;
    }
    else if (cmd == "getid")
    {
        debug("Current NPC is " + npcfirstname + " " + npclastname + ", with the UUID: " + (string)npc);
        return;
    }
    else if (cmd == "clearid")
    {
        npc = NULL_KEY;
        llSetObjectDesc(NULL_KEY);
        debug("NPC UUID has been set to NULL_KEY.");
        return;
    }
    else if (cmd == "help")
    {
        CommandHelp(cmdline);
        return;
    }
    else if (cmd == "test")
    {
        string s = llKey2Name(npc);
        debug(s);
    }
    else{
        debug("Unknown command: " + llDumpList2String(cmdline, " "));
        debug("Use the help command for a list of commands.");
    }
}
 
CommandHelp(list cmdline)
{
    // This function provides command instructions and usage information.
    string cmd = llList2String(cmdline, 0);
    integer cmdlength = llGetListLength(cmdline);
    if (cmdlength == 1)
    {
        debug("The following commands are available:");
        debug("\thelp \tcreate \tsave \tload \tdelete");
        debug("\tcopy \tsetid \tgetid \tclearid");
        debug("Use \"help <command>\" to get more information on an item in the list.");
        return;
    }
    else if (cmdlength == 2)
    {
        string param = llList2String(cmdline, 1);
        if (param == "save")
        {
            debug("The save command saves the current appearance of the NPC to a notecard. If no notecard name is specified, the name is set to the first and last names of the NPC, seperated by an underscore.");
            debug("Command usage: save [<cardname>]");
            debug("Example: save John_Smith");
            return;
        }
        if (param == "load")
        {
            debug("The load command saves the current appearance of the NPC to a notecard. When not given an parameters, it attempts to load the card created when the NPC was created. It will also attempt to load any notecard when a name is spefified. Finally, it will try to load a notecard named after an NPC.");
            debug("Command usage: load [<cardname> | <firstname> <lastname>]");
            debug("Example: load");
            debug("Example: load mynotecard");
            debug("Example: load John Smith");
            return;
        }
        else if (param == "delete")
        {
            debug("The delete command removes the current NPC from the scene.");
            debug("Command usage: delete");
            return;
        }
        else if (param == "create")
        {
            debug("The create command creates a new NPC. If it does not find a previously stored appearance for the given NPC name, it copies the appearance of its creator. All subsequent commands will be applied to this new NPC.");
            debug("Command usage: create <firstname> <lastName>");
            debug("Example: create John Smith");
            return;
        }
        else if (param == "copy")
        {
            debug("The copy command makes a copy of the user's appearance, and applies it to the NPC.");
            debug("Command usage: copy");
            return;
        }
        else if (param == "setid")
        {
            debug("The setid command tells " + llGetObjectName() + " which NPC it is working with. Can be provided with an explicit UUID, or given a first and last name from which it will attempt to detect the UUID.");
            debug("Command usage: setid <UUID>");
            debug("Command usage: setid <firstname> <lastname>");
            debug("Example: setid e254e947-65d0-4bc8-b70a-6e6c05bf0535");
            return;
        }
        else if (param == "getid")
        {
            debug("The getid command retrieves and displays the UUID for the current active NPC.");
            debug("Command usage: getid");
            return;
        }
        else if (param == "clearid")
        {
            debug("The clearid command sets the NPC's UUID to NULL_KEY.");
            debug("Command usage: clearid");
            return;
        }
        else if (param == "help")
        {
            debug("Please see the help command.");
            debug("Command usage: help");
            return;
        }
    }
    else{
        debug("Command usage: help [<command>]");
        return;
    }
}
 
integer anim = FALSE;
integer dead = TRUE;
 
default
{
    on_rez(integer start_param)
    {
        ResetScript();
    }
    changed(integer change)
    {
        if(change & CHANGED_INVENTORY) 
        {
            NpcDelete();
            llSleep(3); 
            ResetScript();
        }
        else if(change & CHANGED_OWNER) 
        {
            ResetScript();
        }
    }
    state_entry()
    {
        llListen(channel, "", NULL_KEY, "");
        llListen(0,"",NULL_KEY,"");
        init();
        llSetObjectDesc(NULL_KEY);
        //llSensor("", NULL_KEY, AGENT, 4.0, PI);
        debug(llGetObjectName() + " started on channel " + (string)channel + ".");
        debug("Use the help command to get started.");
        debug("Example: /" + (string)channel + " help");
        anim = FALSE;
        llSetTimerEvent(1);
        debug("RUNNING");
    } 
    timer()
    {
        if ((llKey2Name(npc) == "" && (dead != TRUE)))
        {
            ResetScript(); 
        }
        else{
            // osNpcPlayAnimation(npc, "Hello";
            if(rand)
            {
                osNpcSetRot(npc, llGetRot() * (llEuler2Rot(<0, 0, llFrand(360)> * DEG_TO_RAD))); // Setting Random Rotation every wait
            }
            readLineId = llGetNotecardLine(config, line++);
        }
        llSetTimerEvent(delay); 
    }
    dataserver(key request_id, string data)
    {
        if(request_id == readLineId)
        {
            processConfiguration(data);
        }
    }
    listen(integer chan, string name, key id, string msg)
    {
        if(chan==channel)
        {
            if (msg == "" ) { return; }
            if (id != llGetOwner())
            {
                // llSay(0, "Only the owner of " + llGetObjectName() + " may issue commands.";
            }
            list commandline = llParseString2List(msg, [" "], []);
            CommandExec(commandline);
        }
        if(chan==0)
        {
            //conversations
            if(id!=npc)
            {
                integer length = llGetListLength(triggers);
                integer i;
                for (i = 0; i < length; ++i) {
                    string word = llList2String(triggers, i);
                    integer found=llSubStringIndex(llToLower(msg),word);
                    if(found>-1)
                    {
                        integer address=llList2Integer(goto,i);
                        gotoqueue= [(integer)address] + gotoqueue;
                        debug("Added address " + address + " to gotoqueue.");
                    }
                }
            }
        }
    }
 
    sensor(integer num)
    {
        integer count=0;
        while(count<num)
        {
            string myname=npcfirstname + " " + npclastname;
            string name=llKey2Name(llDetectedKey(count));
            if(name!=myname)
            {
                if(llListFindList(greet,[name])<0)
                {
                    greet+=[name];
                    integer space=llSubStringIndex(name," ");
                    string firstName=llGetSubString(name,0,space-1);
                    integer known=get_aqaintance(name);
                    llSleep(0.5);
                    if(known==0){
                    osNpcSay(npc,hiufirst + firstName + hiulast);
                    set_aqaintance(name);
                }
                    else{
                        osNpcSay(npc,hikfirst + firstName + hiklast);
                    }
                }
            }
            count++;
        }
    }
    no_sensor()
    {
        greet=[];
    }
}
 
state DetectAgent
{
    state_entry()
    {
        llSensor(detectname, NULL_KEY, AGENT, 96, PI);
    }
    sensor(integer number)
    {
        debug("The entity named " + detectname + " was found.");
        npc = llDetectedKey(0);
        llSetObjectDesc(llDetectedKey(0));
        list namelist = llParseString2List(detectname, [" "], []);
        npcfirstname = llList2String(namelist, 0);
        npclastname = llList2String(namelist, 1);
        debug("The NPC's UUID is now " + npc + ".");
        detectname = "";
        state default;
    }
    no_sensor()
    {
        debug("The entity named " + detectname + " was not found.");
        detectname = "";
        gotoqueue=[];
        state default;
    }
}

Credit

Original script by Paintball Magic. Rewritten, corrected and expanded by Nihlaeth Melody.

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