double sdb2max_warp (int x)
{
        double a = sdb[x].move.ratio;
        double p = (0.99 * sdb[x].power.main) + (0.01 * sdb[x].power.total * sdb[x].alloc.movement);

        if (a <= 0.0)
                return 0.0;
        if (p <= 0.0)
                return 0.0;
        if (sdb[x].status.tractoring) {
                a *= (sdb[x].structure.displacement + sdb[sdb[x].status.tractoring].structure.displacement + 0.1) /
                  (sdb[x].structure.displacement + 0.1);
        } else if (sdb[x].status.tractored)
                a *= (sdb[x].structure.displacement + sdb[sdb[x].status.tractored].structure.displacement + 0.1) /
                  (sdb[x].structure.displacement + 0.1);

        a = sqrt(10.0 * p / a);
        if (a < 1.0) {
                return 0.0;
        } else
                return a/2;
}