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virtualx-engine/scene/3d/navigation_mesh.cpp
jfons 298bd3f88a Add option to create navmesh from objects in group 
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.
2019-10-16 12:01:10 +02:00

744 lines
25 KiB
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/*************************************************************************/
/* navigation_mesh.cpp */
/*************************************************************************/
/* 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) */
/* */
/* 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.write[0] = r[j + 0] + from;
vi.write[1] = r[j + 1] + from;
vi.write[2] = r[j + 2] + from;
add_polygon(vi);
}
}
}
void NavigationMesh::set_sample_partition_type(int p_value) {
ERR_FAIL_COND(p_value >= SAMPLE_PARTITION_MAX);
partition_type = static_cast<SamplePartitionType>(p_value);
}
int NavigationMesh::get_sample_partition_type() const {
return static_cast<int>(partition_type);
}
void NavigationMesh::set_parsed_geometry_type(int p_value) {
ERR_FAIL_COND(p_value >= PARSED_GEOMETRY_MAX);
parsed_geometry_type = static_cast<ParsedGeometryType>(p_value);
_change_notify();
}
int NavigationMesh::get_parsed_geometry_type() const {
return parsed_geometry_type;
}
void NavigationMesh::set_collision_mask(uint32_t p_mask) {
collision_mask = p_mask;
}
uint32_t NavigationMesh::get_collision_mask() const {
return collision_mask;
}
void NavigationMesh::set_collision_mask_bit(int p_bit, bool p_value) {
uint32_t mask = get_collision_mask();
if (p_value)
mask |= 1 << p_bit;
else
mask &= ~(1 << p_bit);
set_collision_mask(mask);
}
bool NavigationMesh::get_collision_mask_bit(int p_bit) const {
return get_collision_mask() & (1 << p_bit);
}
void NavigationMesh::set_source_geometry_mode(int p_geometry_mode) {
ERR_FAIL_INDEX(p_geometry_mode, SOURCE_GEOMETRY_MAX);
source_geometry_mode = static_cast<SourceGeometryMode>(p_geometry_mode);
_change_notify();
}
int NavigationMesh::get_source_geometry_mode() const {
return source_geometry_mode;
}
void NavigationMesh::set_source_group_name(StringName p_group_name) {
source_group_name = p_group_name;
}
StringName NavigationMesh::get_source_group_name() const {
return source_group_name;
}
void NavigationMesh::set_cell_size(float p_value) {
cell_size = p_value;
}
float NavigationMesh::get_cell_size() const {
return cell_size;
}
void NavigationMesh::set_cell_height(float p_value) {
cell_height = p_value;
}
float NavigationMesh::get_cell_height() const {
return cell_height;
}
void NavigationMesh::set_agent_height(float p_value) {
agent_height = p_value;
}
float NavigationMesh::get_agent_height() const {
return agent_height;
}
void NavigationMesh::set_agent_radius(float p_value) {
agent_radius = p_value;
}
float NavigationMesh::get_agent_radius() {
return agent_radius;
}
void NavigationMesh::set_agent_max_climb(float p_value) {
agent_max_climb = p_value;
}
float NavigationMesh::get_agent_max_climb() const {
return agent_max_climb;
}
void NavigationMesh::set_agent_max_slope(float p_value) {
agent_max_slope = p_value;
}
float NavigationMesh::get_agent_max_slope() const {
return agent_max_slope;
}
void NavigationMesh::set_region_min_size(float p_value) {
region_min_size = p_value;
}
float NavigationMesh::get_region_min_size() const {
return region_min_size;
}
void NavigationMesh::set_region_merge_size(float p_value) {
region_merge_size = p_value;
}
float NavigationMesh::get_region_merge_size() const {
return region_merge_size;
}
void NavigationMesh::set_edge_max_length(float p_value) {
edge_max_length = p_value;
}
float NavigationMesh::get_edge_max_length() const {
return edge_max_length;
}
void NavigationMesh::set_edge_max_error(float p_value) {
edge_max_error = p_value;
}
float NavigationMesh::get_edge_max_error() const {
return edge_max_error;
}
void NavigationMesh::set_verts_per_poly(float p_value) {
verts_per_poly = p_value;
}
float NavigationMesh::get_verts_per_poly() const {
return verts_per_poly;
}
void NavigationMesh::set_detail_sample_distance(float p_value) {
detail_sample_distance = p_value;
}
float NavigationMesh::get_detail_sample_distance() const {
return detail_sample_distance;
}
void NavigationMesh::set_detail_sample_max_error(float p_value) {
detail_sample_max_error = p_value;
}
float NavigationMesh::get_detail_sample_max_error() const {
return detail_sample_max_error;
}
void NavigationMesh::set_filter_low_hanging_obstacles(bool p_value) {
filter_low_hanging_obstacles = p_value;
}
bool NavigationMesh::get_filter_low_hanging_obstacles() const {
return filter_low_hanging_obstacles;
}
void NavigationMesh::set_filter_ledge_spans(bool p_value) {
filter_ledge_spans = p_value;
}
bool NavigationMesh::get_filter_ledge_spans() const {
return filter_ledge_spans;
}
void NavigationMesh::set_filter_walkable_low_height_spans(bool p_value) {
filter_walkable_low_height_spans = p_value;
}
bool NavigationMesh::get_filter_walkable_low_height_spans() const {
return filter_walkable_low_height_spans;
}
void NavigationMesh::set_vertices(const PoolVector<Vector3> &p_vertices) {
vertices = p_vertices;
_change_notify();
}
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.write[i].indices = p_array[i];
}
_change_notify();
}
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);
_change_notify();
}
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(Vector3(CMP_EPSILON, CMP_EPSILON, CMP_EPSILON));
ek.to = f.vertex[(j + 1) % 3].snapped(Vector3(CMP_EPSILON, CMP_EPSILON, CMP_EPSILON));
if (ek.from < ek.to)
SWAP(ek.from, ek.to);
Map<_EdgeKey, bool>::Element *F = edge_map.find(ek);
if (F) {
F->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_sample_partition_type", "sample_partition_type"), &NavigationMesh::set_sample_partition_type);
ClassDB::bind_method(D_METHOD("get_sample_partition_type"), &NavigationMesh::get_sample_partition_type);
ClassDB::bind_method(D_METHOD("set_parsed_geometry_type", "geometry_type"), &NavigationMesh::set_parsed_geometry_type);
ClassDB::bind_method(D_METHOD("get_parsed_geometry_type"), &NavigationMesh::get_parsed_geometry_type);
ClassDB::bind_method(D_METHOD("set_collision_mask", "mask"), &NavigationMesh::set_collision_mask);
ClassDB::bind_method(D_METHOD("get_collision_mask"), &NavigationMesh::get_collision_mask);
ClassDB::bind_method(D_METHOD("set_collision_mask_bit", "bit", "value"), &NavigationMesh::set_collision_mask_bit);
ClassDB::bind_method(D_METHOD("get_collision_mask_bit", "bit"), &NavigationMesh::get_collision_mask_bit);
ClassDB::bind_method(D_METHOD("set_source_geometry_mode", "mask"), &NavigationMesh::set_source_geometry_mode);
ClassDB::bind_method(D_METHOD("get_source_geometry_mode"), &NavigationMesh::get_source_geometry_mode);
ClassDB::bind_method(D_METHOD("set_source_group_name", "mask"), &NavigationMesh::set_source_group_name);
ClassDB::bind_method(D_METHOD("get_source_group_name"), &NavigationMesh::get_source_group_name);
ClassDB::bind_method(D_METHOD("set_cell_size", "cell_size"), &NavigationMesh::set_cell_size);
ClassDB::bind_method(D_METHOD("get_cell_size"), &NavigationMesh::get_cell_size);
ClassDB::bind_method(D_METHOD("set_cell_height", "cell_height"), &NavigationMesh::set_cell_height);
ClassDB::bind_method(D_METHOD("get_cell_height"), &NavigationMesh::get_cell_height);
ClassDB::bind_method(D_METHOD("set_agent_height", "agent_height"), &NavigationMesh::set_agent_height);
ClassDB::bind_method(D_METHOD("get_agent_height"), &NavigationMesh::get_agent_height);
ClassDB::bind_method(D_METHOD("set_agent_radius", "agent_radius"), &NavigationMesh::set_agent_radius);
ClassDB::bind_method(D_METHOD("get_agent_radius"), &NavigationMesh::get_agent_radius);
ClassDB::bind_method(D_METHOD("set_agent_max_climb", "agent_max_climb"), &NavigationMesh::set_agent_max_climb);
ClassDB::bind_method(D_METHOD("get_agent_max_climb"), &NavigationMesh::get_agent_max_climb);
ClassDB::bind_method(D_METHOD("set_agent_max_slope", "agent_max_slope"), &NavigationMesh::set_agent_max_slope);
ClassDB::bind_method(D_METHOD("get_agent_max_slope"), &NavigationMesh::get_agent_max_slope);
ClassDB::bind_method(D_METHOD("set_region_min_size", "region_min_size"), &NavigationMesh::set_region_min_size);
ClassDB::bind_method(D_METHOD("get_region_min_size"), &NavigationMesh::get_region_min_size);
ClassDB::bind_method(D_METHOD("set_region_merge_size", "region_merge_size"), &NavigationMesh::set_region_merge_size);
ClassDB::bind_method(D_METHOD("get_region_merge_size"), &NavigationMesh::get_region_merge_size);
ClassDB::bind_method(D_METHOD("set_edge_max_length", "edge_max_length"), &NavigationMesh::set_edge_max_length);
ClassDB::bind_method(D_METHOD("get_edge_max_length"), &NavigationMesh::get_edge_max_length);
ClassDB::bind_method(D_METHOD("set_edge_max_error", "edge_max_error"), &NavigationMesh::set_edge_max_error);
ClassDB::bind_method(D_METHOD("get_edge_max_error"), &NavigationMesh::get_edge_max_error);
ClassDB::bind_method(D_METHOD("set_verts_per_poly", "verts_per_poly"), &NavigationMesh::set_verts_per_poly);
ClassDB::bind_method(D_METHOD("get_verts_per_poly"), &NavigationMesh::get_verts_per_poly);
ClassDB::bind_method(D_METHOD("set_detail_sample_distance", "detail_sample_dist"), &NavigationMesh::set_detail_sample_distance);
ClassDB::bind_method(D_METHOD("get_detail_sample_distance"), &NavigationMesh::get_detail_sample_distance);
ClassDB::bind_method(D_METHOD("set_detail_sample_max_error", "detail_sample_max_error"), &NavigationMesh::set_detail_sample_max_error);
ClassDB::bind_method(D_METHOD("get_detail_sample_max_error"), &NavigationMesh::get_detail_sample_max_error);
ClassDB::bind_method(D_METHOD("set_filter_low_hanging_obstacles", "filter_low_hanging_obstacles"), &NavigationMesh::set_filter_low_hanging_obstacles);
ClassDB::bind_method(D_METHOD("get_filter_low_hanging_obstacles"), &NavigationMesh::get_filter_low_hanging_obstacles);
ClassDB::bind_method(D_METHOD("set_filter_ledge_spans", "filter_ledge_spans"), &NavigationMesh::set_filter_ledge_spans);
ClassDB::bind_method(D_METHOD("get_filter_ledge_spans"), &NavigationMesh::get_filter_ledge_spans);
ClassDB::bind_method(D_METHOD("set_filter_walkable_low_height_spans", "filter_walkable_low_height_spans"), &NavigationMesh::set_filter_walkable_low_height_spans);
ClassDB::bind_method(D_METHOD("get_filter_walkable_low_height_spans"), &NavigationMesh::get_filter_walkable_low_height_spans);
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("create_from_mesh", "mesh"), &NavigationMesh::create_from_mesh);
ClassDB::bind_method(D_METHOD("_set_polygons", "polygons"), &NavigationMesh::_set_polygons);
ClassDB::bind_method(D_METHOD("_get_polygons"), &NavigationMesh::_get_polygons);
BIND_CONSTANT(SAMPLE_PARTITION_WATERSHED);
BIND_CONSTANT(SAMPLE_PARTITION_MONOTONE);
BIND_CONSTANT(SAMPLE_PARTITION_LAYERS);
BIND_CONSTANT(PARSED_GEOMETRY_MESH_INSTANCES);
BIND_CONSTANT(PARSED_GEOMETRY_STATIC_COLLIDERS);
BIND_CONSTANT(PARSED_GEOMETRY_BOTH);
ADD_PROPERTY(PropertyInfo(Variant::POOL_VECTOR3_ARRAY, "vertices", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "set_vertices", "get_vertices");
ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "polygons", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "_set_polygons", "_get_polygons");
ADD_PROPERTY(PropertyInfo(Variant::INT, "sample_partition_type/sample_partition_type", PROPERTY_HINT_ENUM, "Watershed,Monotone,Layers"), "set_sample_partition_type", "get_sample_partition_type");
ADD_PROPERTY(PropertyInfo(Variant::INT, "geometry/parsed_geometry_type", PROPERTY_HINT_ENUM, "Mesh Instances,Static Colliders,Both"), "set_parsed_geometry_type", "get_parsed_geometry_type");
ADD_PROPERTY(PropertyInfo(Variant::INT, "geometry/collision_mask", PROPERTY_HINT_LAYERS_3D_PHYSICS), "set_collision_mask", "get_collision_mask");
ADD_PROPERTY(PropertyInfo(Variant::INT, "geometry/source_geometry_mode", PROPERTY_HINT_ENUM, "Navmesh Children, Group With Children, Group Explicit"), "set_source_geometry_mode", "get_source_geometry_mode");
ADD_PROPERTY(PropertyInfo(Variant::STRING, "geometry/source_group_name"), "set_source_group_name", "get_source_group_name");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "cell/size", PROPERTY_HINT_RANGE, "0.1,1.0,0.01,or_greater"), "set_cell_size", "get_cell_size");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "cell/height", PROPERTY_HINT_RANGE, "0.1,1.0,0.01,or_greater"), "set_cell_height", "get_cell_height");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "agent/height", PROPERTY_HINT_RANGE, "0.1,5.0,0.01,or_greater"), "set_agent_height", "get_agent_height");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "agent/radius", PROPERTY_HINT_RANGE, "0.1,5.0,0.01,or_greater"), "set_agent_radius", "get_agent_radius");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "agent/max_climb", PROPERTY_HINT_RANGE, "0.1,5.0,0.01,or_greater"), "set_agent_max_climb", "get_agent_max_climb");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "agent/max_slope", PROPERTY_HINT_RANGE, "0.0,90.0,0.1"), "set_agent_max_slope", "get_agent_max_slope");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "region/min_size", PROPERTY_HINT_RANGE, "0.0,150.0,0.01,or_greater"), "set_region_min_size", "get_region_min_size");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "region/merge_size", PROPERTY_HINT_RANGE, "0.0,150.0,0.01,or_greater"), "set_region_merge_size", "get_region_merge_size");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "edge/max_length", PROPERTY_HINT_RANGE, "0.0,50.0,0.01,or_greater"), "set_edge_max_length", "get_edge_max_length");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "edge/max_error", PROPERTY_HINT_RANGE, "0.1,3.0,0.01,or_greater"), "set_edge_max_error", "get_edge_max_error");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "polygon/verts_per_poly", PROPERTY_HINT_RANGE, "3.0,12.0,1.0,or_greater"), "set_verts_per_poly", "get_verts_per_poly");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "detail/sample_distance", PROPERTY_HINT_RANGE, "0.0,16.0,0.01,or_greater"), "set_detail_sample_distance", "get_detail_sample_distance");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "detail/sample_max_error", PROPERTY_HINT_RANGE, "0.0,16.0,0.01,or_greater"), "set_detail_sample_max_error", "get_detail_sample_max_error");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "filter/low_hanging_obstacles"), "set_filter_low_hanging_obstacles", "get_filter_low_hanging_obstacles");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "filter/ledge_spans"), "set_filter_ledge_spans", "get_filter_ledge_spans");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "filter/filter_walkable_low_height_spans"), "set_filter_walkable_low_height_spans", "get_filter_walkable_low_height_spans");
}
void NavigationMesh::_validate_property(PropertyInfo &property) const {
if (property.name == "geometry/collision_mask") {
if (parsed_geometry_type == PARSED_GEOMETRY_MESH_INSTANCES) {
property.usage = 0;
return;
}
}
if (property.name == "geometry/source_group_name") {
if (source_geometry_mode == SOURCE_GEOMETRY_NAVMESH_CHILDREN) {
property.usage = 0;
return;
}
}
}
NavigationMesh::NavigationMesh() {
cell_size = 0.3f;
cell_height = 0.2f;
agent_height = 2.0f;
agent_radius = 0.6f;
agent_max_climb = 0.9f;
agent_max_slope = 45.0f;
region_min_size = 8.0f;
region_merge_size = 20.0f;
edge_max_length = 12.0f;
edge_max_error = 1.3f;
verts_per_poly = 6.0f;
detail_sample_distance = 6.0f;
detail_sample_max_error = 1.0f;
partition_type = SAMPLE_PARTITION_WATERSHED;
parsed_geometry_type = PARSED_GEOMETRY_MESH_INSTANCES;
collision_mask = 0xFFFFFFFF;
source_geometry_mode = SOURCE_GEOMETRY_NAVMESH_CHILDREN;
source_group_name = "navmesh";
filter_low_hanging_obstacles = false;
filter_ledge_spans = false;
filter_walkable_low_height_spans = false;
}
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_add(navmesh, get_relative_transform(navigation), this);
}
}
}
if (debug_view) {
MeshInstance *dm = Object::cast_to<MeshInstance>(debug_view);
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 = Object::cast_to<Navigation>(c);
if (navigation) {
if (enabled && navmesh.is_valid()) {
nav_id = navigation->navmesh_add(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;
}
if (navmesh.is_valid()) {
navmesh->remove_change_receptor(this);
}
navmesh = p_navmesh;
if (navmesh.is_valid()) {
navmesh->add_change_receptor(this);
}
if (navigation && navmesh.is_valid() && enabled) {
nav_id = navigation->navmesh_add(navmesh, get_relative_transform(navigation), this);
}
if (debug_view && navmesh.is_valid()) {
Object::cast_to<MeshInstance>(debug_view)->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 (Object::cast_to<Navigation>(c))
return String();
c = Object::cast_to<Spatial>(c->get_parent());
}
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");
}
void NavigationMeshInstance::_changed_callback(Object *p_changed, const char *p_prop) {
update_gizmo();
update_configuration_warning();
}
NavigationMeshInstance::NavigationMeshInstance() {
debug_view = NULL;
navigation = NULL;
nav_id = -1;
enabled = true;
set_notify_transform(true);
}
NavigationMeshInstance::~NavigationMeshInstance() {
if (navmesh.is_valid())
navmesh->remove_change_receptor(this);
}
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