function scr_onscreen_tolerance(arg0, arg1)
{
    obj = arg0;
    spacer = arg1;
    var __cx = camera_get_view_x(view_camera[0]);
    var __cy = camera_get_view_y(view_camera[0]);
    if ((obj.x + obj.sprite_width + spacer) < __cx || (obj.x - spacer) > (__cx + 640) || (obj.y + obj.sprite_height + spacer) < __cy || (obj.y - spacer) > (__cy + 480))
        return false;
    else
        return true;
}