Sensor door with unknown avatar detection

// Fixyou Kit's sensor door script with unknown avatar detection.
// Door can be opened by up to 10 avatars, set up by name in the list.
// The door scans for any avatars witin a distance of "scandist" and reports any avatar that is not on the access list
// If known avatars get within a distance of "distdoor" to the door, it will open
//plz IM me if you have questions! Have fun!

//set names of avatars you want to allow access:
string access1 = "Fixyou Kit";
string access2 = " ";
string access3 = " ";
string access4 = " ";
string access5 = " ";
string access6 = " ";
string access7 = " ";
string access8 = " ";
string access9 = " ";
string access10 = " ";
integer distodoor = 3; // set distance (meters) between avatar and door to open
integer scandist = 500; //set scanning distance
string Ava_detected;
integer ava_known = 0;

default
{
    state_entry()
    {
        llSensorRepeat("","",AGENT,scandist,TWO_PI,10.0);
        llWhisper(0,"Scanner is active");
    }

    sensor(integer total_number)
        {
        integer x;
        for (x = 0; x < total_number; x++)
        {
        vector pos = llGetPos();
        string Ava_detected = llDetectedName(x);
        float diff = llVecDist(pos,llDetectedPos(x));
        integer dist = llRound(diff);
            if(Ava_detected==access1 || Ava_detected==access2 || Ava_detected==access3 || Ava_detected==access4 || Ava_detected==access5 || Ava_detected==access6 || Ava_detected==access7 || Ava_detected==access8 || Ava_detected==access9 || Ava_detected==access10)
            {
             ava_known = 1;
            }
            if(ava_known == 0)
            {
            string detected =  Ava_detected + " @ " + ((string)dist) + "m";        
            llWhisper(0,detected);
            }
            if(dist < distodoor)
            {
            if(ava_known == 1)
                {
                llWhisper(0,((string)dist)+" " + ((string)distodoor));
                llPlaySound("startrekdoor", 0.5);
                llSay(0, "Door open for "+(llDetectedName(0)));
                llSetPrimitiveParams([PRIM_PHANTOM, TRUE]);
                llSleep (15);
                llSetPrimitiveParams([PRIM_PHANTOM, FALSE]);
                dist = 100;
                }        
            else 
                { 
                llSetPrimitiveParams([PRIM_PHANTOM, FALSE]);
                llSay(0, "Sorry "+(llDetectedName(0))+", can't let you enter, you are not on the access list");
                }
            }
        }
    }
        

    no_sensor()
    {
        llWhisper(0,"No activity within " + ((string)scandist) + "m");
    }

}