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/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */

#include "node_geometry_util.hh"

static bNodeSocketTemplate geo_node_join_geometry_in[]{
    {SOCK_GEOMETRY, N_("Geometry")},
    {-1, ""},
};

static bNodeSocketTemplate geo_node_join_geometry_out[]{
    {SOCK_GEOMETRY, N_("Mesh")},
    {SOCK_GEOMETRY, N_("Point Cloud")},
    {SOCK_GEOMETRY, N_("Curve")},
    {SOCK_GEOMETRY, N_("Volume")},
    {-1, ""},
};

namespace blender::nodes {

static void geo_node_separate_components_exec(GeoNodeExecParams params)
{
  GeometrySet geometry_set = params.extract_input<GeometrySet>("Geometry");

  /* Note that it will be possible to skip realizing instances here when instancing
   * geometry directly is supported by creating corresponding geometry instances. */
  geometry_set = bke::geometry_set_realize_instances(geometry_set);

  GeometrySet meshes;
  GeometrySet point_clouds;
  GeometrySet volumes;
  GeometrySet curves;

  if (geometry_set.has<MeshComponent>()) {
    meshes.add(*geometry_set.get_component_for_read<MeshComponent>());
  }
  if (geometry_set.has<PointCloudComponent>()) {
    point_clouds.add(*geometry_set.get_component_for_read<PointCloudComponent>());
  }
  if (geometry_set.has<CurveComponent>()) {
    curves.add(*geometry_set.get_component_for_read<CurveComponent>());
  }
  if (geometry_set.has<VolumeComponent>()) {
    volumes.add(*geometry_set.get_component_for_read<VolumeComponent>());
  }

  params.set_output("Mesh", meshes);
  params.set_output("Point Cloud", point_clouds);
  params.set_output("Curve", curves);
  params.set_output("Volume", volumes);
}

}  // namespace blender::nodes

void register_node_type_geo_separate_components()
{
  static bNodeType ntype;

  geo_node_type_base(
      &ntype, GEO_NODE_SEPARATE_COMPONENTS, "Separate Components", NODE_CLASS_GEOMETRY, 0);
  node_type_socket_templates(&ntype, geo_node_join_geometry_in, geo_node_join_geometry_out);
  ntype.geometry_node_execute = blender::nodes::geo_node_separate_components_exec;
  nodeRegisterType(&ntype);
}