iquad=game.quad[ix][iy];
tracktorpedo(x, y, ix, iy, wait, l, i, n, iquad);
wait = 1;
if (iquad==IHDOT) continue;
/* hit something */
iquad=game.quad[ix][iy];
tracktorpedo(x, y, ix, iy, wait, l, i, n, iquad);
wait = 1;
if (iquad==IHDOT) continue;
/* hit something */