Merge remote-tracking branch 'origin/terrain'

1 files changed, 201 insertions, 0 deletions

diff --git a/test/test-geoData.cpp b/test/test-geoData.cpp
new file mode 100644
index 0000000..d1c6b8b
--- /dev/null
+++ b/test/test-geoData.cpp
@@ -0,0 +1,201 @@
+#define BOOST_TEST_MODULE terrain
+#include "testHelpers.h"
+#include <boost/test/data/test_case.hpp>
+#include <boost/test/unit_test.hpp>
+#include <stream_support.h>
+
+#include <game/geoData.h>
+
+class TestTerrainMesh : public GeoData {
+public:
+	TestTerrainMesh() : GeoData {GeoData::loadFromAsciiGrid(FIXTURESDIR "height/SD19.asc")} { }
+};
+
+constexpr size_t ncols = 200, nrows = 200, xllcorner = 310000000, yllcorner = 490000000, cellsize = 50000;
+
+BOOST_FIXTURE_TEST_SUITE(ttm, TestTerrainMesh);
+
+BOOST_AUTO_TEST_CASE(loadSuccess)
+{
+	BOOST_CHECK_EQUAL(ncols * nrows, n_vertices());
+	BOOST_CHECK_EQUAL(2 * (ncols - 1) * (nrows - 1), n_faces());
+	const auto [lower, upper] = getExtents();
+	BOOST_CHECK_EQUAL(lower, GlobalPosition3D(310000000, 490000000, -2600));
+	BOOST_CHECK_EQUAL(upper, GlobalPosition3D(319950000, 499950000, 571600));
+}
+
+BOOST_AUTO_TEST_CASE(normalsAllPointUp)
+{
+	BOOST_CHECK_EQUAL(std::count_if(vertices_begin(), vertices_end(),
+							  [this](auto && vh) {
+								  return normal(vh).z > 0;
+							  }),
+			n_vertices());
+}
+
+BOOST_AUTO_TEST_CASE(trianglesContainsPoints)
+{
+	const auto face = face_handle(0);
+
+	BOOST_TEST_CONTEXT(GeoData::Triangle<2>(this, fv_range(face))) {
+		BOOST_CHECK(triangleContainsPoint(GlobalPosition2D {xllcorner, yllcorner}, face));
+		BOOST_CHECK(triangleContainsPoint(GlobalPosition2D {xllcorner + cellsize, yllcorner + cellsize}, face));
+		BOOST_CHECK(triangleContainsPoint(GlobalPosition2D {xllcorner, yllcorner + cellsize}, face));
+		BOOST_CHECK(triangleContainsPoint(GlobalPosition2D {xllcorner + 1, yllcorner + 1}, face));
+		BOOST_CHECK(triangleContainsPoint(GlobalPosition2D {xllcorner + 1, yllcorner + 2}, face));
+		BOOST_CHECK(!triangleContainsPoint(GlobalPosition2D {xllcorner + 3, yllcorner + 2}, face));
+		BOOST_CHECK(!triangleContainsPoint(GlobalPosition2D {xllcorner + cellsize, yllcorner}, face));
+	}
+}
+
+BOOST_AUTO_TEST_SUITE_END();
+
+static const TestTerrainMesh fixedTerrtain;
+
+BOOST_AUTO_TEST_CASE(locatePointFace)
+{
+	const GeoData::PointFace pf {{310002000, 490003000}};
+	BOOST_CHECK(!pf.isLocated());
+	BOOST_CHECK(pf.face(&fixedTerrtain).is_valid());
+	BOOST_CHECK_EQUAL(pf.face(&fixedTerrtain).idx(), 0);
+}
+
+BOOST_AUTO_TEST_CASE(preLocatePointFace)
+{
+	const GeoData::PointFace pf {{310002000, 490003000}, &fixedTerrtain};
+	BOOST_CHECK(pf.isLocated());
+	BOOST_CHECK_EQUAL(pf.face(&fixedTerrtain).idx(), 0);
+}
+
+using FindPointData = std::tuple<GlobalPosition2D, int>;
+
+// No boundary cases as these can produce different valid results depending on starting point
+BOOST_DATA_TEST_CASE(findPointOnTerrain,
+		boost::unit_test::data::make<FindPointData>({
+				{{0, 0}, -1}, {{xllcorner, 0}, -1}, {{0, yllcorner}, -1}, {{xllcorner + 1, yllcorner + 2}, 0},
+				{{xllcorner + (cellsize * (nrows - 1)) - 2, yllcorner + (cellsize * (ncols - 1)) - 1}, 79200},
+				{{315555000, 495556000}, 44400}, // perf test target
+		})
+				* boost::unit_test::data::make<int>(
+						{0, 1, 2, 3, 4, 5, 6, 10, 100, 150, 200, 1000, 1234, 17439, 79201, 79200, 79199}),
+		p, fh, start)
+{
+	BOOST_CHECK_EQUAL(fh, fixedTerrtain.findPoint(p, GeoData::FaceHandle(start)).idx());
+}
+
+using FindPositionData = std::tuple<GlobalPosition2D, GlobalDistance>;
+
+BOOST_DATA_TEST_CASE(findPositionAt,
+		boost::unit_test::data::make<FindPositionData>({
+				// corners
+				{{310000000, 490000000}, 32800},
+				{{310050000, 490050000}, 33000},
+				{{310000000, 490050000}, 32700},
+				{{310050000, 490000000}, 33200},
+				{{310750000, 490150000}, 58400},
+				// midpoints
+				{{310025000, 490025000}, 32900},
+				{{310025000, 490050000}, 32850},
+				{{310000000, 490025000}, 32750},
+				// other
+				{{310751000, 490152000}, 58326},
+		}),
+		p, h)
+{
+	BOOST_CHECK_EQUAL(fixedTerrtain.positionAt(p), GlobalPosition3D(p, h));
+}
+
+using FindRayIntersectData = std::tuple<GlobalPosition3D, Direction3D, GlobalPosition3D>;
+
+BOOST_DATA_TEST_CASE(findRayIntersect,
+		boost::unit_test::data::make<FindRayIntersectData>({
+				{{310000000, 490000000, 50000}, {1, 1, -2}, {310008585, 490008585, 32834}},
+				{{310000000, 490000000, 50000}, {1, 1, -1}, {310017136, 490017136, 32868}},
+		}),
+		p, d, i)
+{
+	BOOST_CHECK_EQUAL(fixedTerrtain.intersectRay({p, d}).value(), i);
+}
+
+BOOST_AUTO_TEST_CASE(boundaryWalk)
+{
+	size_t count {};
+	fixedTerrtain.boundaryWalk([&count](auto heh) {
+		BOOST_CHECK(fixedTerrtain.is_boundary(heh));
+		count++;
+	});
+	BOOST_CHECK_EQUAL(count, 2 * (ncols + nrows - 2));
+}
+
+using WalkTerrainData = std::tuple<GlobalPosition2D, GlobalPosition2D, std::vector<int>>;
+
+BOOST_DATA_TEST_CASE(walkTerrain,
+		boost::unit_test::data::make<WalkTerrainData>({
+				{{310002000, 490003000}, {310002000, 490003000}, {0}},
+				{{310003000, 490002000}, {310003000, 490002000}, {1}},
+				{{310002000, 490003000}, {310003000, 490002000}, {0, 1}},
+				{{310003000, 490002000}, {310002000, 490003000}, {1, 0}},
+				{{310002000, 490003000}, {310202000, 490003000}, {0, 1, 2, 3, 4, 5, 6, 7, 8}},
+				{{310202000, 490003000}, {310002000, 490003000}, {8, 7, 6, 5, 4, 3, 2, 1, 0}},
+				{{310002000, 490003000}, {310002000, 490203000}, {0, 399, 398, 797, 796, 1195, 1194, 1593, 1592}},
+				{{310002000, 490003000}, {309999000, 489999000}, {0}},
+				{{309999000, 489999000}, {310002000, 490003000}, {0}},
+				{{320002000, 500003000}, {319949000, 499948000}, {79201}},
+				{{309999000, 490003000}, {310004000, 489997000}, {0, 1}},
+				{{310004000, 489997000}, {309999000, 490003000}, {1, 0}},
+		}),
+		from, to, visits)
+{
+	std::vector<int> visited;
+	BOOST_CHECK_NO_THROW(fixedTerrtain.walk(from, to, [&visited](auto fh) {
+		visited.emplace_back(fh.idx());
+	}));
+	BOOST_CHECK_EQUAL_COLLECTIONS(visited.begin(), visited.end(), visits.begin(), visits.end());
+}
+
+BOOST_DATA_TEST_CASE(walkTerrainSetsFromFace,
+		boost::unit_test::data::make<WalkTerrainData>({
+				{{310002000, 490003000}, {310002000, 490003000}, {0}},
+				{{310003000, 490002000}, {310003000, 490002000}, {1}},
+				{{310002000, 490003000}, {310003000, 490002000}, {0, 1}},
+				{{310003000, 490002000}, {310002000, 490003000}, {1, 0}},
+		}),
+		from, to, visits)
+{
+	GeoData::PointFace pf {from};
+	BOOST_CHECK_NO_THROW(fixedTerrtain.walk(pf, to, [](auto) {}));
+	BOOST_CHECK_EQUAL(pf.face(&fixedTerrtain).idx(), visits.front());
+}
+
+BOOST_DATA_TEST_CASE(walkTerrainUntil,
+		boost::unit_test::data::make<WalkTerrainData>({
+				{{310002000, 490003000}, {310002000, 490003000}, {0}},
+				{{310003000, 490002000}, {310003000, 490002000}, {1}},
+				{{310002000, 490003000}, {310003000, 490002000}, {0, 1}},
+				{{310003000, 490002000}, {310002000, 490003000}, {1, 0}},
+				{{310002000, 490003000}, {310202000, 490003000}, {0, 1, 2, 3, 4}},
+				{{310202000, 490003000}, {310002000, 490003000}, {8, 7, 6, 5, 4}},
+				{{310002000, 490003000}, {310002000, 490203000}, {0, 399, 398, 797, 796}},
+		}),
+		from, to, visits)
+{
+	std::vector<int> visited;
+	BOOST_CHECK_NO_THROW(fixedTerrtain.walkUntil(from, to, [&visited](auto fh) {
+		visited.emplace_back(fh.idx());
+		return visited.size() >= 5;
+	}));
+	BOOST_CHECK_EQUAL_COLLECTIONS(visited.begin(), visited.end(), visits.begin(), visits.end());
+}
+
+using FindEntiesData = std::tuple<GlobalPosition2D, GlobalPosition2D, int>;
+
+BOOST_DATA_TEST_CASE(findEntries,
+		boost::unit_test::data::make<FindEntiesData>({
+				{{307739360, 494851616}, {314056992, 500079744}, 160667},
+				{{308597952, 498417056}, {315154144, 504671456}, 233623},
+				{{302690592, 502270912}, {311585184, 497868064}, 207311},
+		}),
+		from, to, heh)
+{
+	BOOST_CHECK_EQUAL(fixedTerrtain.findEntry(from, to).idx(), heh);
+}