395 lines
11 KiB
C++
395 lines
11 KiB
C++
/*************************************************************************/
|
|
/* navigation_mesh.cpp */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* http://www.godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2017 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. */
|
|
/*************************************************************************/
|
|
#include "navigation_mesh.h"
|
|
#include "mesh_instance.h"
|
|
#include "navigation.h"
|
|
|
|
void NavigationMesh::create_from_mesh(const Ref<Mesh> &p_mesh) {
|
|
|
|
vertices = PoolVector<Vector3>();
|
|
clear_polygons();
|
|
|
|
for (int i = 0; i < p_mesh->get_surface_count(); i++) {
|
|
|
|
if (p_mesh->surface_get_primitive_type(i) != Mesh::PRIMITIVE_TRIANGLES)
|
|
continue;
|
|
Array arr = p_mesh->surface_get_arrays(i);
|
|
PoolVector<Vector3> varr = arr[Mesh::ARRAY_VERTEX];
|
|
PoolVector<int> iarr = arr[Mesh::ARRAY_INDEX];
|
|
if (varr.size() == 0 || iarr.size() == 0)
|
|
continue;
|
|
|
|
int from = vertices.size();
|
|
vertices.append_array(varr);
|
|
int rlen = iarr.size();
|
|
PoolVector<int>::Read r = iarr.read();
|
|
|
|
for (int j = 0; j < rlen; j += 3) {
|
|
Vector<int> vi;
|
|
vi.resize(3);
|
|
vi[0] = r[j + 0] + from;
|
|
vi[1] = r[j + 1] + from;
|
|
vi[2] = r[j + 2] + from;
|
|
|
|
add_polygon(vi);
|
|
}
|
|
}
|
|
}
|
|
|
|
void NavigationMesh::set_vertices(const PoolVector<Vector3> &p_vertices) {
|
|
|
|
vertices = p_vertices;
|
|
}
|
|
|
|
PoolVector<Vector3> NavigationMesh::get_vertices() const {
|
|
|
|
return vertices;
|
|
}
|
|
|
|
void NavigationMesh::_set_polygons(const Array &p_array) {
|
|
|
|
polygons.resize(p_array.size());
|
|
for (int i = 0; i < p_array.size(); i++) {
|
|
polygons[i].indices = p_array[i];
|
|
}
|
|
}
|
|
|
|
Array NavigationMesh::_get_polygons() const {
|
|
|
|
Array ret;
|
|
ret.resize(polygons.size());
|
|
for (int i = 0; i < ret.size(); i++) {
|
|
ret[i] = polygons[i].indices;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
void NavigationMesh::add_polygon(const Vector<int> &p_polygon) {
|
|
|
|
Polygon polygon;
|
|
polygon.indices = p_polygon;
|
|
polygons.push_back(polygon);
|
|
}
|
|
int NavigationMesh::get_polygon_count() const {
|
|
|
|
return polygons.size();
|
|
}
|
|
Vector<int> NavigationMesh::get_polygon(int p_idx) {
|
|
|
|
ERR_FAIL_INDEX_V(p_idx, polygons.size(), Vector<int>());
|
|
return polygons[p_idx].indices;
|
|
}
|
|
void NavigationMesh::clear_polygons() {
|
|
|
|
polygons.clear();
|
|
}
|
|
|
|
Ref<Mesh> NavigationMesh::get_debug_mesh() {
|
|
|
|
if (debug_mesh.is_valid())
|
|
return debug_mesh;
|
|
|
|
PoolVector<Vector3> vertices = get_vertices();
|
|
PoolVector<Vector3>::Read vr = vertices.read();
|
|
List<Face3> faces;
|
|
for (int i = 0; i < get_polygon_count(); i++) {
|
|
Vector<int> p = get_polygon(i);
|
|
|
|
for (int j = 2; j < p.size(); j++) {
|
|
Face3 f;
|
|
f.vertex[0] = vr[p[0]];
|
|
f.vertex[1] = vr[p[j - 1]];
|
|
f.vertex[2] = vr[p[j]];
|
|
|
|
faces.push_back(f);
|
|
}
|
|
}
|
|
|
|
Map<_EdgeKey, bool> edge_map;
|
|
PoolVector<Vector3> tmeshfaces;
|
|
tmeshfaces.resize(faces.size() * 3);
|
|
|
|
{
|
|
PoolVector<Vector3>::Write tw = tmeshfaces.write();
|
|
int tidx = 0;
|
|
|
|
for (List<Face3>::Element *E = faces.front(); E; E = E->next()) {
|
|
|
|
const Face3 &f = E->get();
|
|
|
|
for (int j = 0; j < 3; j++) {
|
|
|
|
tw[tidx++] = f.vertex[j];
|
|
_EdgeKey ek;
|
|
ek.from = f.vertex[j].snapped(CMP_EPSILON);
|
|
ek.to = f.vertex[(j + 1) % 3].snapped(CMP_EPSILON);
|
|
if (ek.from < ek.to)
|
|
SWAP(ek.from, ek.to);
|
|
|
|
Map<_EdgeKey, bool>::Element *E = edge_map.find(ek);
|
|
|
|
if (E) {
|
|
|
|
E->get() = false;
|
|
|
|
} else {
|
|
|
|
edge_map[ek] = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
List<Vector3> lines;
|
|
|
|
for (Map<_EdgeKey, bool>::Element *E = edge_map.front(); E; E = E->next()) {
|
|
|
|
if (E->get()) {
|
|
lines.push_back(E->key().from);
|
|
lines.push_back(E->key().to);
|
|
}
|
|
}
|
|
|
|
PoolVector<Vector3> varr;
|
|
varr.resize(lines.size());
|
|
{
|
|
PoolVector<Vector3>::Write w = varr.write();
|
|
int idx = 0;
|
|
for (List<Vector3>::Element *E = lines.front(); E; E = E->next()) {
|
|
w[idx++] = E->get();
|
|
}
|
|
}
|
|
|
|
debug_mesh = Ref<ArrayMesh>(memnew(ArrayMesh));
|
|
|
|
Array arr;
|
|
arr.resize(Mesh::ARRAY_MAX);
|
|
arr[Mesh::ARRAY_VERTEX] = varr;
|
|
|
|
debug_mesh->add_surface_from_arrays(Mesh::PRIMITIVE_LINES, arr);
|
|
|
|
return debug_mesh;
|
|
}
|
|
|
|
void NavigationMesh::_bind_methods() {
|
|
|
|
ClassDB::bind_method(D_METHOD("set_vertices", "vertices"), &NavigationMesh::set_vertices);
|
|
ClassDB::bind_method(D_METHOD("get_vertices"), &NavigationMesh::get_vertices);
|
|
|
|
ClassDB::bind_method(D_METHOD("add_polygon", "polygon"), &NavigationMesh::add_polygon);
|
|
ClassDB::bind_method(D_METHOD("get_polygon_count"), &NavigationMesh::get_polygon_count);
|
|
ClassDB::bind_method(D_METHOD("get_polygon", "idx"), &NavigationMesh::get_polygon);
|
|
ClassDB::bind_method(D_METHOD("clear_polygons"), &NavigationMesh::clear_polygons);
|
|
|
|
ClassDB::bind_method(D_METHOD("_set_polygons", "polygons"), &NavigationMesh::_set_polygons);
|
|
ClassDB::bind_method(D_METHOD("_get_polygons"), &NavigationMesh::_get_polygons);
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::POOL_VECTOR3_ARRAY, "vertices", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_vertices", "get_vertices");
|
|
ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "polygons", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "_set_polygons", "_get_polygons");
|
|
}
|
|
|
|
NavigationMesh::NavigationMesh() {
|
|
}
|
|
|
|
void NavigationMeshInstance::set_enabled(bool p_enabled) {
|
|
|
|
if (enabled == p_enabled)
|
|
return;
|
|
enabled = p_enabled;
|
|
|
|
if (!is_inside_tree())
|
|
return;
|
|
|
|
if (!enabled) {
|
|
|
|
if (nav_id != -1) {
|
|
navigation->navmesh_remove(nav_id);
|
|
nav_id = -1;
|
|
}
|
|
} else {
|
|
|
|
if (navigation) {
|
|
|
|
if (navmesh.is_valid()) {
|
|
|
|
nav_id = navigation->navmesh_create(navmesh, get_relative_transform(navigation), this);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (debug_view) {
|
|
MeshInstance *dm = debug_view->cast_to<MeshInstance>();
|
|
if (is_enabled()) {
|
|
dm->set_material_override(get_tree()->get_debug_navigation_material());
|
|
} else {
|
|
dm->set_material_override(get_tree()->get_debug_navigation_disabled_material());
|
|
}
|
|
}
|
|
|
|
update_gizmo();
|
|
}
|
|
|
|
bool NavigationMeshInstance::is_enabled() const {
|
|
|
|
return enabled;
|
|
}
|
|
|
|
/////////////////////////////
|
|
|
|
void NavigationMeshInstance::_notification(int p_what) {
|
|
|
|
switch (p_what) {
|
|
case NOTIFICATION_ENTER_TREE: {
|
|
|
|
Spatial *c = this;
|
|
while (c) {
|
|
|
|
navigation = c->cast_to<Navigation>();
|
|
if (navigation) {
|
|
|
|
if (enabled && navmesh.is_valid()) {
|
|
|
|
nav_id = navigation->navmesh_create(navmesh, get_relative_transform(navigation), this);
|
|
}
|
|
break;
|
|
}
|
|
|
|
c = c->get_parent_spatial();
|
|
}
|
|
|
|
if (navmesh.is_valid() && get_tree()->is_debugging_navigation_hint()) {
|
|
|
|
MeshInstance *dm = memnew(MeshInstance);
|
|
dm->set_mesh(navmesh->get_debug_mesh());
|
|
if (is_enabled()) {
|
|
dm->set_material_override(get_tree()->get_debug_navigation_material());
|
|
} else {
|
|
dm->set_material_override(get_tree()->get_debug_navigation_disabled_material());
|
|
}
|
|
add_child(dm);
|
|
debug_view = dm;
|
|
}
|
|
|
|
} break;
|
|
case NOTIFICATION_TRANSFORM_CHANGED: {
|
|
|
|
if (navigation && nav_id != -1) {
|
|
navigation->navmesh_set_transform(nav_id, get_relative_transform(navigation));
|
|
}
|
|
|
|
} break;
|
|
case NOTIFICATION_EXIT_TREE: {
|
|
|
|
if (navigation) {
|
|
|
|
if (nav_id != -1) {
|
|
navigation->navmesh_remove(nav_id);
|
|
nav_id = -1;
|
|
}
|
|
}
|
|
|
|
if (debug_view) {
|
|
debug_view->queue_delete();
|
|
debug_view = NULL;
|
|
}
|
|
navigation = NULL;
|
|
} break;
|
|
}
|
|
}
|
|
|
|
void NavigationMeshInstance::set_navigation_mesh(const Ref<NavigationMesh> &p_navmesh) {
|
|
|
|
if (p_navmesh == navmesh)
|
|
return;
|
|
|
|
if (navigation && nav_id != -1) {
|
|
navigation->navmesh_remove(nav_id);
|
|
nav_id = -1;
|
|
}
|
|
navmesh = p_navmesh;
|
|
|
|
if (navigation && navmesh.is_valid() && enabled) {
|
|
nav_id = navigation->navmesh_create(navmesh, get_relative_transform(navigation), this);
|
|
}
|
|
|
|
if (debug_view && navmesh.is_valid()) {
|
|
debug_view->cast_to<MeshInstance>()->set_mesh(navmesh->get_debug_mesh());
|
|
}
|
|
|
|
update_gizmo();
|
|
update_configuration_warning();
|
|
}
|
|
|
|
Ref<NavigationMesh> NavigationMeshInstance::get_navigation_mesh() const {
|
|
|
|
return navmesh;
|
|
}
|
|
|
|
String NavigationMeshInstance::get_configuration_warning() const {
|
|
|
|
if (!is_visible_in_tree() || !is_inside_tree())
|
|
return String();
|
|
|
|
if (!navmesh.is_valid()) {
|
|
return TTR("A NavigationMesh resource must be set or created for this node to work.");
|
|
}
|
|
const Spatial *c = this;
|
|
while (c) {
|
|
|
|
if (c->cast_to<Navigation>())
|
|
return String();
|
|
|
|
c = c->get_parent()->cast_to<Spatial>();
|
|
}
|
|
|
|
return TTR("NavigationMeshInstance must be a child or grandchild to a Navigation node. It only provides navigation data.");
|
|
}
|
|
|
|
void NavigationMeshInstance::_bind_methods() {
|
|
|
|
ClassDB::bind_method(D_METHOD("set_navigation_mesh", "navmesh"), &NavigationMeshInstance::set_navigation_mesh);
|
|
ClassDB::bind_method(D_METHOD("get_navigation_mesh"), &NavigationMeshInstance::get_navigation_mesh);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_enabled", "enabled"), &NavigationMeshInstance::set_enabled);
|
|
ClassDB::bind_method(D_METHOD("is_enabled"), &NavigationMeshInstance::is_enabled);
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "navmesh", PROPERTY_HINT_RESOURCE_TYPE, "NavigationMesh"), "set_navigation_mesh", "get_navigation_mesh");
|
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "enabled"), "set_enabled", "is_enabled");
|
|
}
|
|
|
|
NavigationMeshInstance::NavigationMeshInstance() {
|
|
|
|
debug_view = NULL;
|
|
navigation = NULL;
|
|
nav_id = -1;
|
|
enabled = true;
|
|
set_notify_transform(true);
|
|
}
|