MLFixture()
{
va = map_location(3,4);
vb = map_location(10,8);
vc = map_location(0,9);
vz = map_location::ZERO();
vt1 = va.vector_negation();
vt2 = vb.vector_sum(vc);
vt3 = va.vector_sum(vc.vector_negation());
vs1 = vz.get_direction(nw);
vs2 = vz.get_direction(n).get_direction(ne);
vs3 = vz.get_direction(s).get_direction(se);
vs4 = vz.get_direction(sw).get_direction(se);
preset_locs.push_back(va);
preset_locs.push_back(vb);
preset_locs.push_back(vc);
preset_locs.push_back(vz);
preset_locs.push_back(vt1);
preset_locs.push_back(vt2);
preset_locs.push_back(vt3);
preset_locs.push_back(vs1);
preset_locs.push_back(vs2);
preset_locs.push_back(vs3);
preset_locs.push_back(vs4);
}
static void reality_check_get_direction_helper(const map_location & loc, const map_location::DIRECTION d)
{
map_location lz(vz.get_direction(d));
map_location temp(loc.vector_sum(lz));
BOOST_CHECK_EQUAL(temp, loc.get_direction(d));
BOOST_CHECK(tiles_adjacent(loc,temp));
BOOST_CHECK(tiles_adjacent(temp,loc));
BOOST_CHECK_EQUAL(distance_between(loc,temp), 1);
}