diff options
Diffstat (limited to 'modules/navigation/2d/nav_mesh_generator_2d.cpp')
| -rw-r--r-- | modules/navigation/2d/nav_mesh_generator_2d.cpp | 44 |
1 files changed, 32 insertions, 12 deletions
diff --git a/modules/navigation/2d/nav_mesh_generator_2d.cpp b/modules/navigation/2d/nav_mesh_generator_2d.cpp index c996c9e935..a8eb07147c 100644 --- a/modules/navigation/2d/nav_mesh_generator_2d.cpp +++ b/modules/navigation/2d/nav_mesh_generator_2d.cpp @@ -850,7 +850,7 @@ void NavMeshGenerator2D::generator_bake_from_source_geometry_data(Ref<Navigation using namespace Clipper2Lib; PathsD traversable_polygon_paths; PathsD obstruction_polygon_paths; - int obstruction_polygon_path_size = 0; + bool empty_projected_obstructions = true; { RWLockRead read_lock(p_source_geometry_data->geometry_rwlock); @@ -886,7 +886,8 @@ void NavMeshGenerator2D::generator_bake_from_source_geometry_data(Ref<Navigation traversable_polygon_paths.push_back(std::move(subject_path)); } - if (!projected_obstructions.is_empty()) { + empty_projected_obstructions = projected_obstructions.is_empty(); + if (!empty_projected_obstructions) { for (const NavigationMeshSourceGeometryData2D::ProjectedObstruction &projected_obstruction : projected_obstructions) { if (projected_obstruction.carve) { continue; @@ -907,7 +908,6 @@ void NavMeshGenerator2D::generator_bake_from_source_geometry_data(Ref<Navigation } } - obstruction_polygon_path_size = obstruction_polygon_paths.size(); for (const Vector<Vector2> &obstruction_outline : obstruction_outlines) { PathD clip_path; clip_path.reserve(obstruction_outline.size()); @@ -919,7 +919,6 @@ void NavMeshGenerator2D::generator_bake_from_source_geometry_data(Ref<Navigation } Rect2 baking_rect = p_navigation_mesh->get_baking_rect(); - PathsD area_obstruction_polygon_paths; if (baking_rect.has_area()) { Vector2 baking_rect_offset = p_navigation_mesh->get_baking_rect_offset(); @@ -931,27 +930,48 @@ void NavMeshGenerator2D::generator_bake_from_source_geometry_data(Ref<Navigation RectD clipper_rect = RectD(rect_begin_x, rect_begin_y, rect_end_x, rect_end_y); traversable_polygon_paths = RectClip(clipper_rect, traversable_polygon_paths); - area_obstruction_polygon_paths = RectClip(clipper_rect, obstruction_polygon_paths); - } else { - area_obstruction_polygon_paths = obstruction_polygon_paths; + obstruction_polygon_paths = RectClip(clipper_rect, obstruction_polygon_paths); } // first merge all traversable polygons according to user specified fill rule PathsD dummy_clip_path; traversable_polygon_paths = Union(traversable_polygon_paths, dummy_clip_path, FillRule::NonZero); // merge all obstruction polygons, don't allow holes for what is considered "solid" 2D geometry - area_obstruction_polygon_paths = Union(area_obstruction_polygon_paths, dummy_clip_path, FillRule::NonZero); + obstruction_polygon_paths = Union(obstruction_polygon_paths, dummy_clip_path, FillRule::NonZero); - PathsD path_solution = Difference(traversable_polygon_paths, area_obstruction_polygon_paths, FillRule::NonZero); + PathsD path_solution = Difference(traversable_polygon_paths, obstruction_polygon_paths, FillRule::NonZero); real_t agent_radius_offset = p_navigation_mesh->get_agent_radius(); if (agent_radius_offset > 0.0) { path_solution = InflatePaths(path_solution, -agent_radius_offset, JoinType::Miter, EndType::Polygon); } - if (obstruction_polygon_path_size > 0) { - obstruction_polygon_paths.resize(obstruction_polygon_path_size); - path_solution = Difference(path_solution, obstruction_polygon_paths, FillRule::NonZero); + // Apply obstructions that are not affected by agent radius, the ones with carve enabled. + if (!empty_projected_obstructions) { + RWLockRead read_lock(p_source_geometry_data->geometry_rwlock); + const Vector<NavigationMeshSourceGeometryData2D::ProjectedObstruction> &projected_obstructions = p_source_geometry_data->_projected_obstructions; + obstruction_polygon_paths.resize(0); + for (const NavigationMeshSourceGeometryData2D::ProjectedObstruction &projected_obstruction : projected_obstructions) { + if (!projected_obstruction.carve) { + continue; + } + if (projected_obstruction.vertices.is_empty() || projected_obstruction.vertices.size() % 2 != 0) { + continue; + } + + PathD clip_path; + clip_path.reserve(projected_obstruction.vertices.size() / 2); + for (int i = 0; i < projected_obstruction.vertices.size() / 2; i++) { + clip_path.emplace_back(projected_obstruction.vertices[i * 2], projected_obstruction.vertices[i * 2 + 1]); + } + if (!IsPositive(clip_path)) { + std::reverse(clip_path.begin(), clip_path.end()); + } + obstruction_polygon_paths.push_back(std::move(clip_path)); + } + if (obstruction_polygon_paths.size() > 0) { + path_solution = Difference(path_solution, obstruction_polygon_paths, FillRule::NonZero); + } } //path_solution = RamerDouglasPeucker(path_solution, 0.025); // |