diff options
Diffstat (limited to 'game/geoData.cpp')
| -rw-r--r-- | game/geoData.cpp | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/game/geoData.cpp b/game/geoData.cpp index b30a35b..49cf892 100644 --- a/game/geoData.cpp +++ b/game/geoData.cpp @@ -62,6 +62,8 @@ GeoData::loadFromAsciiGrid(const std::filesystem::path & input) return mesh; }; +template<typename T> constexpr static T GRID_SIZE = 10'000; + GeoData GeoData::createFlat(GlobalPosition2D lower, GlobalPosition2D upper, GlobalDistance h) { @@ -70,11 +72,29 @@ GeoData::createFlat(GlobalPosition2D lower, GlobalPosition2D upper, GlobalDistan mesh.lowerExtent = {lower, h}; mesh.upperExtent = {upper, h}; - const auto ll = mesh.add_vertex({lower.x, lower.y, h}), lu = mesh.add_vertex({lower.x, upper.y, h}), - ul = mesh.add_vertex({upper.x, lower.y, h}), uu = mesh.add_vertex({upper.x, upper.y, h}); + std::vector<VertexHandle> vertices; + for (GlobalDistance row = lower.x; row < upper.x; row += GRID_SIZE<GlobalDistance>) { + for (GlobalDistance col = lower.y; col < upper.y; col += GRID_SIZE<GlobalDistance>) { + vertices.push_back(mesh.add_vertex({col, row, h})); + } + } - mesh.add_face(ll, uu, lu); - mesh.add_face(ll, ul, uu); + const auto nrows = static_cast<size_t>(std::ceil(float(upper.x - lower.x) / GRID_SIZE<RelativeDistance>)); + const auto ncols = static_cast<size_t>(std::ceil(float(upper.y - lower.y) / GRID_SIZE<RelativeDistance>)); + for (size_t row = 1; row < nrows; ++row) { + for (size_t col = 1; col < ncols; ++col) { + mesh.add_face({ + vertices[ncols * (row - 1) + (col - 1)], + vertices[ncols * (row - 0) + (col - 0)], + vertices[ncols * (row - 0) + (col - 1)], + }); + mesh.add_face({ + vertices[ncols * (row - 1) + (col - 1)], + vertices[ncols * (row - 1) + (col - 0)], + vertices[ncols * (row - 0) + (col - 0)], + }); + } + } mesh.update_vertex_normals_only(); |