list keys = []; 
key npc;
string toucher;
key toucherkey;
vector toucherPos;
integer npc_on = FALSE;

integer toggle=0;

goA()
{
       osNpcMoveToTarget(npc,<51.8792, 41.5985, 23.3226>,OS_NPC_RUNNING|OS_NPC_NO_FLY);
}
goB()
{

        osNpcMoveToTarget(npc,<85.4375, 38.4954, 23.3226>,OS_NPC_NO_FLY );
}

default
{ 
    state_entry()
    {
        if(llGetObjectDesc()!="") osNpcRemove((key)llGetObjectDesc());
        llListen(10,"",NULL_KEY,"");
          llSensor("", "", AGENT | NPC, 96.0, PI); //Will always return NPC key regardless of npc create option

    }
    timer()
    {
        toggle=1-toggle;
        if(toggle==0) { goA(); llSetTimerEvent(8);}
        if(toggle==1) {goB(); llSetTimerEvent(12);}
    }
    listen(integer channel,string name, key id, string str)
    {
        if(str=="A")
        {
            goA();
            return;
        }
        if(str=="B")
        {
            goB();
            return;
        }
    }
    touch_start(integer x)
    {   
        toucherkey = llDetectedKey(0);
        toucherPos = llDetectedPos(0);
        vector npcPos = llGetPos() + <1,1,1>;

        if(npc_on == FALSE)
        {    
            npc = osNpcCreate("Achille", "PièVeloce", npcPos, toucherkey);
            llSetObjectDesc((string)npc);
            npc_on = TRUE;
            llSetTimerEvent(0.01);
          //  llSensor("", "", AGENT | NPC, 96.0, PI); //Will always return NPC key regardless of npc create option
            return;
        }   

        if(npc_on == TRUE)
        {   
            llSetTimerEvent(0);
            osNpcRemove(npc);
            llSetObjectDesc("");

            llResetScript();

        }   
    }   

    sensor(integer num)
    {   
        keys = []; 
        integer i = 0;

        for(i; i < num; i++)
        {   
            keys += llDetectedKey(i); 
            osNpcRemove(llDetectedKey(i));
        }   

        llOwnerSay(llDumpList2String(keys, "\n"));
    }   

    no_sensor()
    {   
        keys = [];   
    }   
}