string objMessage = "Click me to initiate the Difficulty Check.";   //The message the object sends out to the users
string Pass = "Pass";   //Message Received from HUD: DC passed
string Fail = "Fail";   //Message Redeived from HUD: DC failed
string DCPassed = "DC Passed";  //Message to players: DC Passed
string DCFailed = "DC Failed";  //Message to players: DC Failed
string DiffCheck = "Difficulty Check, ";    //Message to HUD: This is a Difficulty Check message
string DiffNum;    //Message to HUD: The difficulty number
string Stat;  //Message to HUD: the stat to use for the Difficulty Roll
integer listen_handle;  //The listener
integer objectchan = -1234555;  //The channel this object sends to and receives from
key TouchingAvatar; //The UUID of the avatar touching this object
key ThisObject; //They UUID of this object, in case it's needed
integer NPCSystem = 0;
string Caption;
string CaptionCheck = "Difficulty Check";
string PassCheck;
string FailCheck;
string PassFail = "Pass or Fail";
integer Passed;
string StatDiffCheck;

MessageLinkPass()
{
    llMessageLinked(LINK_THIS, 0, llList2CSV([DCPassed,PassCheck]), "");
}

MessageLinkFail()
{
    llMessageLinked(LINK_THIS, NPCSystem, llList2CSV([DCFailed, FailCheck]), "");
}

default
{
    state_entry()
    {
        //Set up the listener channel
        llListenRemove(listen_handle);
        listen_handle = llListen(objectchan, "", "", "");

    }


    listen(integer channel, string name, key target, string message)
    {
        //Inform the player whether the DC passed or failed
        if (channel == objectchan)
        {
            if (message == Pass)
            {
                Passed = TRUE;
                //llSay(0, DCPassed);
                //llMessageLinked(LINK_THIS, 0, llList2CSV([DCPassed,PassCheck]), "");
                //MessageLinkPass();
                llSay( 0, llList2CSV([DCPassed, PassCheck]));
            }
            else if (message == Fail)
            {
                Passed = FALSE;
                llSay(0, DCFailed);
                //MessageLinkFail();
                //llMessageLinked(LINK_THIS, NPCSystem, llList2CSV([DCFailed, FailCheck]), "");
            }
        }
    }

    link_message( integer sender_num, integer num, string str, key id )
    {
        if (sender_num == NPCSystem)
        {
            list DiffCheckData = llCSV2List(str);
            Caption = llList2String(DiffCheckData, 0);
            DiffNum = llList2String(DiffCheckData, 1) + ", ";
            Stat = llList2String(DiffCheckData, 2) + ", ";
            PassCheck = llList2String(DiffCheckData, 5);
            FailCheck = llList2String(DiffCheckData, 6);
            StatDiffCheck = Stat + " Difficulty Check";

            llOwnerSay(PassCheck);

            if (Caption == CaptionCheck)
            {
                llRegionSayTo(TouchingAvatar, objectchan, ( DiffCheck + DiffNum + Stat + (string)ThisObject));  //Speak to the touching avatar's HUD
            //}
            //if (Caption == PassFail)
            //{
                if (Passed == TRUE)
                {
                    llMessageLinked(LINK_THIS, 0, llList2CSV([DCPassed,PassCheck]), "");
                }

                else if (Passed == FALSE)
                {
                    llMessageLinked(LINK_THIS, NPCSystem, llList2CSV([DCFailed,FailCheck]), "");
                }
            //}
            }
        }
    }

    touch_start(integer total_number)
    {
        //The player who touches this object gets the difficulty check performed
        TouchingAvatar = llDetectedKey(0);
        ThisObject = llGetKey();
        //llOwnerSay((string)TouchingAvatar); //A debug messageto check that the keys were obtained
        //llOwnerSay((string)ThisObject); //A debug message to check that they key was obtained
    }

}