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Add option to create navmesh from objects in group

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Adds a new NavigationMesh property to select which objects will be taken
into account for the generation.

By default it will use all the NavigationMeshInstance children to keep
compatibility. The new modes allow to build the NavigationMesh from
all the nodes belonging to a specific group, and optionally include
their children too.
This commit is contained in:
jfons
2019-10-16 11:33:47 +02:00
parent a1033aea51
commit 298bd3f88a
5 changed files with 76 additions and 5 deletions
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24
modules/recast/navigation_mesh_generator.cpp
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@@ -131,7 +131,7 @@ void EditorNavigationMeshGenerator::_add_faces(const PoolVector3Array &p_faces,
}
}
void EditorNavigationMeshGenerator::_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) {
void EditorNavigationMeshGenerator::_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) {
@@ -263,8 +263,10 @@ void EditorNavigationMeshGenerator::_parse_geometry(Transform p_accumulated_tran
p_accumulated_transform = p_accumulated_transform * spatial->get_transform();
}
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);
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);
}
}
}
@@ -439,7 +441,21 @@ void EditorNavigationMeshGenerator::bake(Ref<NavigationMesh> p_nav_mesh, Node *p
Vector<float> vertices;
Vector<int> indices;
_parse_geometry(Object::cast_to<Spatial>(p_node)->get_transform().affine_inverse(), p_node, vertices, indices, p_nav_mesh->get_parsed_geometry_type(), p_nav_mesh->get_collision_mask());
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) {