integer r=FALSE;
key s;
key t;
key p=NULL_KEY;
string a="";
integer b=FALSE;
c(key d,string n)
{
    p=d;
    a=n;
    llRequestPermissions(d,PERMISSION_TAKE_CONTROLS);
}

q(){
    if(b)
    {
        p=NULL_KEY;
        b=FALSE;
        llReleaseControls();
    }
}

f(vector g)
{
    llSetRot(llEuler2Rot(llRot2Euler(llGetRot())+g*DEG_TO_RAD));
}

default
{
    on_rez(integer h)
    {
        llResetScript();
        llSetStatus(STATUS_PHANTOM,TRUE) ;
        llVolumeDetect(FALSE); 
        t=llGetOwner();
    }
    state_entry()
    {

        llSitTarget(<0.0,0.0,1.0>,<0.0,0.0,0.0,1.0>); //you can adpt this
        llSetCameraEyeOffset(<-5.0,0.0,2.0>); 
        llSetCameraAtOffset(<0.0,0.0,2.0>);
    }

    touch(integer j)
    {
        if(llDetectedKey(0))
        {
            c(llDetectedKey(0),llDetectedName(0));
        }
    }
    changed(integer u)
    {
        s=llAvatarOnSitTarget();
        if(u&CHANGED_LINK)
        {
            if((s==p)&&(r))
            {
                llReleaseControls();
                r=FALSE;
            }



        else if(!r)
        {

            t=llAvatarOnSitTarget();
            r=TRUE;
            llRequestPermissions(t,PERMISSION_TAKE_CONTROLS|PERMISSION_TRIGGER_ANIMATION);
           // llSetAlpha(0.0,ALL_SIDES);
        }
    }
}



    control(key n,integer l,integer e)
    {
        if(l&CONTROL_FWD){llSetRegionPos(llGetPos()+(<0.05,0,0>)*llGetRot());
        llModifyLand(LAND_LEVEL, LAND_SMALL_BRUSH);
        //llModifyLand(LAND_SMOOTH, LAND_SMALL_BRUSH);
        }

        if(l&CONTROL_BACK){llSetRegionPos(llGetPos()+(<-0.05,0,0>)*llGetRot());
        }

         if(l&CONTROL_LEFT||l&CONTROL_ROT_LEFT){f(<0,0,2.0>);
         }

        if(l&CONTROL_RIGHT||l&CONTROL_ROT_RIGHT){f(<0,0,-2.0>);
        }
        
       if(l&CONTROL_UP){llSetRegionPos(llGetPos()+(<0,0,0.05>)*llGetRot());
        }
        

        if(l&CONTROL_DOWN){llSetRegionPos(llGetPos()+(<0,0,-0.05>)*llGetRot());
        llModifyLand(LAND_LOWER, LAND_SMALL_BRUSH);
        }
    }

    run_time_permissions(integer k)
    {
        if(k&PERMISSION_TAKE_CONTROLS)
        {
            llTakeControls(CONTROL_FWD|CONTROL_BACK|CONTROL_LEFT|
            CONTROL_RIGHT|CONTROL_ROT_LEFT|CONTROL_ROT_RIGHT|
            CONTROL_UP|CONTROL_DOWN,TRUE,FALSE);
            b=TRUE;
        }

        if(k & PERMISSION_TRIGGER_ANIMATION)
        {
           // llStartAnimation("dz");
            //llStopAnimation("sit");
        }


        else
        {
            q();
        }
    }
}