default
{
    on_rez(integer start)
    {
        llResetScript();
    }

    state_entry()
    {
        llSetPos(<0,0,0>);
        llSetLinkPrimitiveParamsFast(LINK_ALL_CHILDREN, [PRIM_POSITION, <0,0,0>, PRIM_SIZE, <0.5, 0.5, 0>]);
        llRequestPermissions(llGetOwner(), PERMISSION_TRACK_CAMERA);
    }

    run_time_permissions(integer perm)
    {
        llSetTimerEvent(0.05);
    }

    timer()
    {
        vector newPos = (llGetPos() - llGetCameraPos())/llGetCameraRot();
        float degrees_left = llAtan2(newPos.y, newPos.x)*RAD_TO_DEG/60;
        if(llFabs(degrees_left) < 1.0)
        {
            degrees_left = llAsin(degrees_left); // Assumes 60 Degree FOV
        }
        float degrees_above = llAtan2(newPos.z, newPos.x)*RAD_TO_DEG/60;
        if(llFabs(degrees_above) < 1.0)
        {
            degrees_above = llAsin(degrees_above); // Assumes 60 Degree FOV
        }
        float size = 1/(llVecDist(llGetPos(), llGetCameraPos()))*2;
        llSetLinkPrimitiveParamsFast(LINK_ALL_CHILDREN, [PRIM_POSITION, <0,degrees_left,degrees_above>, PRIM_SIZE, <size, size, 0>]);
    }

    changed(integer change)
    {
        if(change & CHANGED_TELEPORT)
        {
            llResetScript();
        }
    }
}