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Diffstat (limited to 'modules/gdnavigation/navigation_mesh_generator.cpp')
-rw-r--r-- | modules/gdnavigation/navigation_mesh_generator.cpp | 574 |
1 files changed, 574 insertions, 0 deletions
diff --git a/modules/gdnavigation/navigation_mesh_generator.cpp b/modules/gdnavigation/navigation_mesh_generator.cpp new file mode 100644 index 0000000000..04b86fabc5 --- /dev/null +++ b/modules/gdnavigation/navigation_mesh_generator.cpp @@ -0,0 +1,574 @@ +/*************************************************************************/ +/* navigation_mesh_generator.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */ +/* */ +/* Permission is hereby granted, free of charge, to any person obtaining */ +/* a copy of this software and associated documentation files (the */ +/* "Software"), to deal in the Software without restriction, including */ +/* without limitation the rights to use, copy, modify, merge, publish, */ +/* distribute, sublicense, and/or sell copies of the Software, and to */ +/* permit persons to whom the Software is furnished to do so, subject to */ +/* the following conditions: */ +/* */ +/* The above copyright notice and this permission notice shall be */ +/* included in all copies or substantial portions of the Software. */ +/* */ +/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ +/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ +/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ +/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ +/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ +/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ +/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +/*************************************************************************/ + +#ifndef _3D_DISABLED + +#include "navigation_mesh_generator.h" + +#include "core/math/quick_hull.h" +#include "core/os/thread.h" +#include "scene/3d/collision_shape.h" +#include "scene/3d/mesh_instance.h" +#include "scene/3d/physics_body.h" +#include "scene/resources/box_shape.h" +#include "scene/resources/capsule_shape.h" +#include "scene/resources/concave_polygon_shape.h" +#include "scene/resources/convex_polygon_shape.h" +#include "scene/resources/cylinder_shape.h" +#include "scene/resources/plane_shape.h" +#include "scene/resources/primitive_meshes.h" +#include "scene/resources/shape.h" +#include "scene/resources/sphere_shape.h" + +#include "modules/modules_enabled.gen.h" +#ifdef TOOLS_ENABLED +#include "editor/editor_node.h" +#include "editor/editor_settings.h" +#endif + +#ifdef MODULE_CSG_ENABLED +#include "modules/csg/csg_shape.h" +#endif +#ifdef MODULE_GRIDMAP_ENABLED +#include "modules/gridmap/grid_map.h" +#endif + +NavigationMeshGenerator *NavigationMeshGenerator::singleton = NULL; + +void NavigationMeshGenerator::_add_vertex(const Vector3 &p_vec3, Vector<float> &p_verticies) { + p_verticies.push_back(p_vec3.x); + p_verticies.push_back(p_vec3.y); + p_verticies.push_back(p_vec3.z); +} + +void NavigationMeshGenerator::_add_mesh(const Ref<Mesh> &p_mesh, const Transform &p_xform, Vector<float> &p_verticies, Vector<int> &p_indices) { + int current_vertex_count; + + for (int i = 0; i < p_mesh->get_surface_count(); i++) { + current_vertex_count = p_verticies.size() / 3; + + if (p_mesh->surface_get_primitive_type(i) != Mesh::PRIMITIVE_TRIANGLES) + continue; + + int index_count = 0; + if (p_mesh->surface_get_format(i) & Mesh::ARRAY_FORMAT_INDEX) { + index_count = p_mesh->surface_get_array_index_len(i); + } else { + index_count = p_mesh->surface_get_array_len(i); + } + + ERR_CONTINUE((index_count == 0 || (index_count % 3) != 0)); + + int face_count = index_count / 3; + + Array a = p_mesh->surface_get_arrays(i); + + PoolVector<Vector3> mesh_vertices = a[Mesh::ARRAY_VERTEX]; + PoolVector<Vector3>::Read vr = mesh_vertices.read(); + + if (p_mesh->surface_get_format(i) & Mesh::ARRAY_FORMAT_INDEX) { + + PoolVector<int> mesh_indices = a[Mesh::ARRAY_INDEX]; + PoolVector<int>::Read ir = mesh_indices.read(); + + for (int j = 0; j < mesh_vertices.size(); j++) { + _add_vertex(p_xform.xform(vr[j]), p_verticies); + } + + for (int j = 0; j < face_count; j++) { + // CCW + p_indices.push_back(current_vertex_count + (ir[j * 3 + 0])); + p_indices.push_back(current_vertex_count + (ir[j * 3 + 2])); + p_indices.push_back(current_vertex_count + (ir[j * 3 + 1])); + } + } else { + face_count = mesh_vertices.size() / 3; + for (int j = 0; j < face_count; j++) { + _add_vertex(p_xform.xform(vr[j * 3 + 0]), p_verticies); + _add_vertex(p_xform.xform(vr[j * 3 + 2]), p_verticies); + _add_vertex(p_xform.xform(vr[j * 3 + 1]), p_verticies); + + p_indices.push_back(current_vertex_count + (j * 3 + 0)); + p_indices.push_back(current_vertex_count + (j * 3 + 1)); + p_indices.push_back(current_vertex_count + (j * 3 + 2)); + } + } + } +} + +void NavigationMeshGenerator::_add_faces(const PoolVector3Array &p_faces, const Transform &p_xform, Vector<float> &p_verticies, Vector<int> &p_indices) { + int face_count = p_faces.size() / 3; + int current_vertex_count = p_verticies.size() / 3; + + for (int j = 0; j < face_count; j++) { + _add_vertex(p_xform.xform(p_faces[j * 3 + 0]), p_verticies); + _add_vertex(p_xform.xform(p_faces[j * 3 + 1]), p_verticies); + _add_vertex(p_xform.xform(p_faces[j * 3 + 2]), p_verticies); + + p_indices.push_back(current_vertex_count + (j * 3 + 0)); + p_indices.push_back(current_vertex_count + (j * 3 + 2)); + p_indices.push_back(current_vertex_count + (j * 3 + 1)); + } +} + +void NavigationMeshGenerator::_parse_geometry(Transform p_accumulated_transform, Node *p_node, Vector<float> &p_verticies, Vector<int> &p_indices, int p_generate_from, uint32_t p_collision_mask, bool p_recurse_children) { + + if (Object::cast_to<MeshInstance>(p_node) && p_generate_from != NavigationMesh::PARSED_GEOMETRY_STATIC_COLLIDERS) { + + MeshInstance *mesh_instance = Object::cast_to<MeshInstance>(p_node); + Ref<Mesh> mesh = mesh_instance->get_mesh(); + if (mesh.is_valid()) { + _add_mesh(mesh, p_accumulated_transform * mesh_instance->get_transform(), p_verticies, p_indices); + } + } + +#ifdef MODULE_CSG_ENABLED + if (Object::cast_to<CSGShape>(p_node) && p_generate_from != NavigationMesh::PARSED_GEOMETRY_STATIC_COLLIDERS) { + + CSGShape *csg_shape = Object::cast_to<CSGShape>(p_node); + Array meshes = csg_shape->get_meshes(); + if (!meshes.empty()) { + Ref<Mesh> mesh = meshes[1]; + if (mesh.is_valid()) { + _add_mesh(mesh, p_accumulated_transform * csg_shape->get_transform(), p_verticies, p_indices); + } + } + } +#endif + + if (Object::cast_to<StaticBody>(p_node) && p_generate_from != NavigationMesh::PARSED_GEOMETRY_MESH_INSTANCES) { + StaticBody *static_body = Object::cast_to<StaticBody>(p_node); + + if (static_body->get_collision_layer() & p_collision_mask) { + + for (int i = 0; i < p_node->get_child_count(); ++i) { + Node *child = p_node->get_child(i); + if (Object::cast_to<CollisionShape>(child)) { + CollisionShape *col_shape = Object::cast_to<CollisionShape>(child); + + Transform transform = p_accumulated_transform * static_body->get_transform() * col_shape->get_transform(); + + Ref<Mesh> mesh; + Ref<Shape> s = col_shape->get_shape(); + + BoxShape *box = Object::cast_to<BoxShape>(*s); + if (box) { + Ref<CubeMesh> cube_mesh; + cube_mesh.instance(); + cube_mesh->set_size(box->get_extents() * 2.0); + mesh = cube_mesh; + } + + CapsuleShape *capsule = Object::cast_to<CapsuleShape>(*s); + if (capsule) { + Ref<CapsuleMesh> capsule_mesh; + capsule_mesh.instance(); + capsule_mesh->set_radius(capsule->get_radius()); + capsule_mesh->set_mid_height(capsule->get_height() / 2.0); + mesh = capsule_mesh; + } + + CylinderShape *cylinder = Object::cast_to<CylinderShape>(*s); + if (cylinder) { + Ref<CylinderMesh> cylinder_mesh; + cylinder_mesh.instance(); + cylinder_mesh->set_height(cylinder->get_height()); + cylinder_mesh->set_bottom_radius(cylinder->get_radius()); + cylinder_mesh->set_top_radius(cylinder->get_radius()); + mesh = cylinder_mesh; + } + + SphereShape *sphere = Object::cast_to<SphereShape>(*s); + if (sphere) { + Ref<SphereMesh> sphere_mesh; + sphere_mesh.instance(); + sphere_mesh->set_radius(sphere->get_radius()); + sphere_mesh->set_height(sphere->get_radius() * 2.0); + mesh = sphere_mesh; + } + + ConcavePolygonShape *concave_polygon = Object::cast_to<ConcavePolygonShape>(*s); + if (concave_polygon) { + _add_faces(concave_polygon->get_faces(), transform, p_verticies, p_indices); + } + + ConvexPolygonShape *convex_polygon = Object::cast_to<ConvexPolygonShape>(*s); + if (convex_polygon) { + Vector<Vector3> varr = Variant(convex_polygon->get_points()); + Geometry::MeshData md; + + Error err = QuickHull::build(varr, md); + + if (err == OK) { + PoolVector3Array faces; + + for (int j = 0; j < md.faces.size(); ++j) { + Geometry::MeshData::Face face = md.faces[j]; + + for (int k = 2; k < face.indices.size(); ++k) { + faces.push_back(md.vertices[face.indices[0]]); + faces.push_back(md.vertices[face.indices[k - 1]]); + faces.push_back(md.vertices[face.indices[k]]); + } + } + + _add_faces(faces, transform, p_verticies, p_indices); + } + } + + if (mesh.is_valid()) { + _add_mesh(mesh, transform, p_verticies, p_indices); + } + } + } + } + } + +#ifdef MODULE_GRIDMAP_ENABLED + if (Object::cast_to<GridMap>(p_node) && p_generate_from != NavigationMesh::PARSED_GEOMETRY_STATIC_COLLIDERS) { + GridMap *gridmap_instance = Object::cast_to<GridMap>(p_node); + Array meshes = gridmap_instance->get_meshes(); + Transform xform = gridmap_instance->get_transform(); + for (int i = 0; i < meshes.size(); i += 2) { + Ref<Mesh> mesh = meshes[i + 1]; + if (mesh.is_valid()) { + _add_mesh(mesh, p_accumulated_transform * xform * meshes[i], p_verticies, p_indices); + } + } + } +#endif + + if (Object::cast_to<Spatial>(p_node)) { + Spatial *spatial = Object::cast_to<Spatial>(p_node); + p_accumulated_transform = p_accumulated_transform * spatial->get_transform(); + } + + if (p_recurse_children) { + for (int i = 0; i < p_node->get_child_count(); i++) { + _parse_geometry(p_accumulated_transform, p_node->get_child(i), p_verticies, p_indices, p_generate_from, p_collision_mask, p_recurse_children); + } + } +} + +void NavigationMeshGenerator::_convert_detail_mesh_to_native_navigation_mesh(const rcPolyMeshDetail *p_detail_mesh, Ref<NavigationMesh> p_nav_mesh) { + + PoolVector<Vector3> nav_vertices; + + for (int i = 0; i < p_detail_mesh->nverts; i++) { + const float *v = &p_detail_mesh->verts[i * 3]; + nav_vertices.append(Vector3(v[0], v[1], v[2])); + } + p_nav_mesh->set_vertices(nav_vertices); + + for (int i = 0; i < p_detail_mesh->nmeshes; i++) { + const unsigned int *m = &p_detail_mesh->meshes[i * 4]; + const unsigned int bverts = m[0]; + const unsigned int btris = m[2]; + const unsigned int ntris = m[3]; + const unsigned char *tris = &p_detail_mesh->tris[btris * 4]; + for (unsigned int j = 0; j < ntris; j++) { + Vector<int> nav_indices; + nav_indices.resize(3); + // Polygon order in recast is opposite than godot's + nav_indices.write[0] = ((int)(bverts + tris[j * 4 + 0])); + nav_indices.write[1] = ((int)(bverts + tris[j * 4 + 2])); + nav_indices.write[2] = ((int)(bverts + tris[j * 4 + 1])); + p_nav_mesh->add_polygon(nav_indices); + } + } +} + +void NavigationMeshGenerator::_build_recast_navigation_mesh( + Ref<NavigationMesh> p_nav_mesh, +#ifdef TOOLS_ENABLED + EditorProgress *ep, +#endif + rcHeightfield *hf, + rcCompactHeightfield *chf, + rcContourSet *cset, + rcPolyMesh *poly_mesh, + rcPolyMeshDetail *detail_mesh, + Vector<float> &vertices, + Vector<int> &indices) { + rcContext ctx; + +#ifdef TOOLS_ENABLED + if (ep) + ep->step(TTR("Setting up Configuration..."), 1); +#endif + + const float *verts = vertices.ptr(); + const int nverts = vertices.size() / 3; + const int *tris = indices.ptr(); + const int ntris = indices.size() / 3; + + float bmin[3], bmax[3]; + rcCalcBounds(verts, nverts, bmin, bmax); + + rcConfig cfg; + memset(&cfg, 0, sizeof(cfg)); + + cfg.cs = p_nav_mesh->get_cell_size(); + cfg.ch = p_nav_mesh->get_cell_height(); + cfg.walkableSlopeAngle = p_nav_mesh->get_agent_max_slope(); + cfg.walkableHeight = (int)Math::ceil(p_nav_mesh->get_agent_height() / cfg.ch); + cfg.walkableClimb = (int)Math::floor(p_nav_mesh->get_agent_max_climb() / cfg.ch); + cfg.walkableRadius = (int)Math::ceil(p_nav_mesh->get_agent_radius() / cfg.cs); + cfg.maxEdgeLen = (int)(p_nav_mesh->get_edge_max_length() / p_nav_mesh->get_cell_size()); + cfg.maxSimplificationError = p_nav_mesh->get_edge_max_error(); + cfg.minRegionArea = (int)(p_nav_mesh->get_region_min_size() * p_nav_mesh->get_region_min_size()); + cfg.mergeRegionArea = (int)(p_nav_mesh->get_region_merge_size() * p_nav_mesh->get_region_merge_size()); + cfg.maxVertsPerPoly = (int)p_nav_mesh->get_verts_per_poly(); + cfg.detailSampleDist = p_nav_mesh->get_detail_sample_distance() < 0.9f ? 0 : p_nav_mesh->get_cell_size() * p_nav_mesh->get_detail_sample_distance(); + cfg.detailSampleMaxError = p_nav_mesh->get_cell_height() * p_nav_mesh->get_detail_sample_max_error(); + + cfg.bmin[0] = bmin[0]; + cfg.bmin[1] = bmin[1]; + cfg.bmin[2] = bmin[2]; + cfg.bmax[0] = bmax[0]; + cfg.bmax[1] = bmax[1]; + cfg.bmax[2] = bmax[2]; + +#ifdef TOOLS_ENABLED + if (ep) + ep->step(TTR("Calculating grid size..."), 2); +#endif + rcCalcGridSize(cfg.bmin, cfg.bmax, cfg.cs, &cfg.width, &cfg.height); + +#ifdef TOOLS_ENABLED + if (ep) + ep->step(TTR("Creating heightfield..."), 3); +#endif + hf = rcAllocHeightfield(); + + ERR_FAIL_COND(!hf); + ERR_FAIL_COND(!rcCreateHeightfield(&ctx, *hf, cfg.width, cfg.height, cfg.bmin, cfg.bmax, cfg.cs, cfg.ch)); + +#ifdef TOOLS_ENABLED + if (ep) + ep->step(TTR("Marking walkable triangles..."), 4); +#endif + { + Vector<unsigned char> tri_areas; + tri_areas.resize(ntris); + + ERR_FAIL_COND(tri_areas.size() == 0); + + memset(tri_areas.ptrw(), 0, ntris * sizeof(unsigned char)); + rcMarkWalkableTriangles(&ctx, cfg.walkableSlopeAngle, verts, nverts, tris, ntris, tri_areas.ptrw()); + + ERR_FAIL_COND(!rcRasterizeTriangles(&ctx, verts, nverts, tris, tri_areas.ptr(), ntris, *hf, cfg.walkableClimb)); + } + + if (p_nav_mesh->get_filter_low_hanging_obstacles()) + rcFilterLowHangingWalkableObstacles(&ctx, cfg.walkableClimb, *hf); + if (p_nav_mesh->get_filter_ledge_spans()) + rcFilterLedgeSpans(&ctx, cfg.walkableHeight, cfg.walkableClimb, *hf); + if (p_nav_mesh->get_filter_walkable_low_height_spans()) + rcFilterWalkableLowHeightSpans(&ctx, cfg.walkableHeight, *hf); + +#ifdef TOOLS_ENABLED + if (ep) + ep->step(TTR("Constructing compact heightfield..."), 5); +#endif + + chf = rcAllocCompactHeightfield(); + + ERR_FAIL_COND(!chf); + ERR_FAIL_COND(!rcBuildCompactHeightfield(&ctx, cfg.walkableHeight, cfg.walkableClimb, *hf, *chf)); + + rcFreeHeightField(hf); + hf = 0; + +#ifdef TOOLS_ENABLED + if (ep) + ep->step(TTR("Eroding walkable area..."), 6); +#endif + + ERR_FAIL_COND(!rcErodeWalkableArea(&ctx, cfg.walkableRadius, *chf)); + +#ifdef TOOLS_ENABLED + if (ep) + ep->step(TTR("Partitioning..."), 7); +#endif + + if (p_nav_mesh->get_sample_partition_type() == NavigationMesh::SAMPLE_PARTITION_WATERSHED) { + ERR_FAIL_COND(!rcBuildDistanceField(&ctx, *chf)); + ERR_FAIL_COND(!rcBuildRegions(&ctx, *chf, 0, cfg.minRegionArea, cfg.mergeRegionArea)); + } else if (p_nav_mesh->get_sample_partition_type() == NavigationMesh::SAMPLE_PARTITION_MONOTONE) { + ERR_FAIL_COND(!rcBuildRegionsMonotone(&ctx, *chf, 0, cfg.minRegionArea, cfg.mergeRegionArea)); + } else { + ERR_FAIL_COND(!rcBuildLayerRegions(&ctx, *chf, 0, cfg.minRegionArea)); + } + +#ifdef TOOLS_ENABLED + if (ep) + ep->step(TTR("Creating contours..."), 8); +#endif + + cset = rcAllocContourSet(); + + ERR_FAIL_COND(!cset); + ERR_FAIL_COND(!rcBuildContours(&ctx, *chf, cfg.maxSimplificationError, cfg.maxEdgeLen, *cset)); + +#ifdef TOOLS_ENABLED + if (ep) + ep->step(TTR("Creating polymesh..."), 9); +#endif + + poly_mesh = rcAllocPolyMesh(); + ERR_FAIL_COND(!poly_mesh); + ERR_FAIL_COND(!rcBuildPolyMesh(&ctx, *cset, cfg.maxVertsPerPoly, *poly_mesh)); + + detail_mesh = rcAllocPolyMeshDetail(); + ERR_FAIL_COND(!detail_mesh); + ERR_FAIL_COND(!rcBuildPolyMeshDetail(&ctx, *poly_mesh, *chf, cfg.detailSampleDist, cfg.detailSampleMaxError, *detail_mesh)); + + rcFreeCompactHeightfield(chf); + chf = 0; + rcFreeContourSet(cset); + cset = 0; + +#ifdef TOOLS_ENABLED + if (ep) + ep->step(TTR("Converting to native navigation mesh..."), 10); +#endif + + _convert_detail_mesh_to_native_navigation_mesh(detail_mesh, p_nav_mesh); + + rcFreePolyMesh(poly_mesh); + poly_mesh = 0; + rcFreePolyMeshDetail(detail_mesh); + detail_mesh = 0; +} + +NavigationMeshGenerator *NavigationMeshGenerator::get_singleton() { + return singleton; +} + +NavigationMeshGenerator::NavigationMeshGenerator() { + singleton = this; +} + +NavigationMeshGenerator::~NavigationMeshGenerator() { +} + +void NavigationMeshGenerator::bake(Ref<NavigationMesh> p_nav_mesh, Node *p_node) { + + ERR_FAIL_COND(!p_nav_mesh.is_valid()); + +#ifdef TOOLS_ENABLED + EditorProgress *ep(NULL); + if (Engine::get_singleton()->is_editor_hint()) { + ep = memnew(EditorProgress("bake", TTR("Navigation Mesh Generator Setup:"), 11)); + } + + if (ep) + ep->step(TTR("Parsing Geometry..."), 0); +#endif + + Vector<float> vertices; + Vector<int> indices; + + List<Node *> parse_nodes; + + if (p_nav_mesh->get_source_geometry_mode() == NavigationMesh::SOURCE_GEOMETRY_NAVMESH_CHILDREN) { + parse_nodes.push_back(p_node); + } else { + p_node->get_tree()->get_nodes_in_group(p_nav_mesh->get_source_group_name(), &parse_nodes); + } + + Transform navmesh_xform = Object::cast_to<Spatial>(p_node)->get_transform().affine_inverse(); + for (const List<Node *>::Element *E = parse_nodes.front(); E; E = E->next()) { + int geometry_type = p_nav_mesh->get_parsed_geometry_type(); + uint32_t collision_mask = p_nav_mesh->get_collision_mask(); + bool recurse_children = p_nav_mesh->get_source_geometry_mode() != NavigationMesh::SOURCE_GEOMETRY_GROUPS_EXPLICIT; + _parse_geometry(navmesh_xform, E->get(), vertices, indices, geometry_type, collision_mask, recurse_children); + } + + if (vertices.size() > 0 && indices.size() > 0) { + + rcHeightfield *hf = NULL; + rcCompactHeightfield *chf = NULL; + rcContourSet *cset = NULL; + rcPolyMesh *poly_mesh = NULL; + rcPolyMeshDetail *detail_mesh = NULL; + + _build_recast_navigation_mesh( + p_nav_mesh, +#ifdef TOOLS_ENABLED + ep, +#endif + hf, + chf, + cset, + poly_mesh, + detail_mesh, + vertices, + indices); + + rcFreeHeightField(hf); + hf = 0; + + rcFreeCompactHeightfield(chf); + chf = 0; + + rcFreeContourSet(cset); + cset = 0; + + rcFreePolyMesh(poly_mesh); + poly_mesh = 0; + + rcFreePolyMeshDetail(detail_mesh); + detail_mesh = 0; + } + +#ifdef TOOLS_ENABLED + if (ep) + ep->step(TTR("Done!"), 11); + + if (ep) + memdelete(ep); +#endif +} + +void NavigationMeshGenerator::clear(Ref<NavigationMesh> p_nav_mesh) { + if (p_nav_mesh.is_valid()) { + p_nav_mesh->clear_polygons(); + p_nav_mesh->set_vertices(PoolVector<Vector3>()); + } +} + +void NavigationMeshGenerator::_bind_methods() { + ClassDB::bind_method(D_METHOD("bake", "nav_mesh", "root_node"), &NavigationMeshGenerator::bake); + ClassDB::bind_method(D_METHOD("clear", "nav_mesh"), &NavigationMeshGenerator::clear); +} + +#endif |