godot/modules/recast/navigation_mesh_generator.h
jfons 1add4c15ab Various improvements to NavigationMesh generation
* Expose EditorNavigationMeshGenerator as an engine singleton so users
  can generate navmesehes from `tool` scripts.

* Add support for generating navmeshes from static colliders. All
  collision shapes are supported except for Plane (since Plane is an
  infinite collider and navmeshes need to have finite geometry).

* When using static colliders as a geometry source, a layer mask can be
  specified to ignore certain colliders.

* Don't rely on global transform. It still should give the exact same
  results but allows for building navmeshes on nodes that are not in the
  tree (useful in `tool` scripts).

* Update navigation gizmos after every new bake.

This work has been kindly sponsored by IMVU.
2019-05-23 08:37:58 +02:00

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/*************************************************************************/
/* navigation_mesh_generator.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
/* */
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#ifndef NAVIGATION_MESH_GENERATOR_H
#define NAVIGATION_MESH_GENERATOR_H
#include "editor/editor_node.h"
#include "scene/3d/navigation_mesh.h"
#include <Recast.h>
class EditorNavigationMeshGenerator : public Object {
GDCLASS(EditorNavigationMeshGenerator, Object);
static EditorNavigationMeshGenerator *singleton;
protected:
static void _bind_methods();
static void _add_vertex(const Vector3 &p_vec3, Vector<float> &p_verticies);
static void _add_mesh(const Ref<Mesh> &p_mesh, const Transform &p_xform, Vector<float> &p_verticies, Vector<int> &p_indices);
static void _add_faces(const PoolVector3Array &p_faces, const Transform &p_xform, Vector<float> &p_verticies, Vector<int> &p_indices);
static void _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);
static void _convert_detail_mesh_to_native_navigation_mesh(const rcPolyMeshDetail *p_detail_mesh, Ref<NavigationMesh> p_nav_mesh);
static void _build_recast_navigation_mesh(Ref<NavigationMesh> p_nav_mesh, EditorProgress *ep,
rcHeightfield *hf, rcCompactHeightfield *chf, rcContourSet *cset, rcPolyMesh *poly_mesh,
rcPolyMeshDetail *detail_mesh, Vector<float> &vertices, Vector<int> &indices);
public:
static EditorNavigationMeshGenerator *get_singleton();
EditorNavigationMeshGenerator();
~EditorNavigationMeshGenerator();
void bake(Ref<NavigationMesh> p_nav_mesh, Node *p_node);
void clear(Ref<NavigationMesh> p_nav_mesh);
};
#endif // NAVIGATION_MESH_GENERATOR_H