virtualx-engine/scene/2d/navigation_region_2d.cpp

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/*************************************************************************/
/* navigation_region_2d.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 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_region_2d.h"
#include "core/core_string_names.h"
#include "core/math/geometry_2d.h"
#include "core/os/mutex.h"
#include "scene/resources/world_2d.h"
#include "servers/navigation_server_2d.h"
#include "servers/navigation_server_3d.h"
#include "thirdparty/misc/polypartition.h"
#ifdef TOOLS_ENABLED
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Rect2 NavigationPolygon::_edit_get_rect() const {
if (rect_cache_dirty) {
item_rect = Rect2();
bool first = true;
for (int i = 0; i < outlines.size(); i++) {
const Vector<Vector2> &outline = outlines[i];
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const int outline_size = outline.size();
if (outline_size < 3) {
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continue;
}
const Vector2 *p = outline.ptr();
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for (int j = 0; j < outline_size; j++) {
if (first) {
item_rect = Rect2(p[j], Vector2(0, 0));
first = false;
} else {
item_rect.expand_to(p[j]);
}
}
}
rect_cache_dirty = false;
}
return item_rect;
}
bool NavigationPolygon::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const {
for (int i = 0; i < outlines.size(); i++) {
const Vector<Vector2> &outline = outlines[i];
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const int outline_size = outline.size();
if (outline_size < 3) {
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continue;
}
if (Geometry2D::is_point_in_polygon(p_point, Variant(outline))) {
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return true;
}
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}
return false;
}
#endif
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void NavigationPolygon::set_vertices(const Vector<Vector2> &p_vertices) {
{
MutexLock lock(navmesh_generation);
navmesh.unref();
}
vertices = p_vertices;
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rect_cache_dirty = true;
}
Vector<Vector2> NavigationPolygon::get_vertices() const {
return vertices;
}
void NavigationPolygon::_set_polygons(const TypedArray<Vector<int32_t>> &p_array) {
{
MutexLock lock(navmesh_generation);
navmesh.unref();
}
polygons.resize(p_array.size());
for (int i = 0; i < p_array.size(); i++) {
polygons.write[i].indices = p_array[i];
}
}
TypedArray<Vector<int32_t>> NavigationPolygon::_get_polygons() const {
TypedArray<Vector<int32_t>> ret;
ret.resize(polygons.size());
for (int i = 0; i < ret.size(); i++) {
ret[i] = polygons[i].indices;
}
return ret;
}
void NavigationPolygon::_set_outlines(const TypedArray<Vector<Vector2>> &p_array) {
outlines.resize(p_array.size());
for (int i = 0; i < p_array.size(); i++) {
outlines.write[i] = p_array[i];
}
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rect_cache_dirty = true;
}
TypedArray<Vector<Vector2>> NavigationPolygon::_get_outlines() const {
TypedArray<Vector<Vector2>> ret;
ret.resize(outlines.size());
for (int i = 0; i < ret.size(); i++) {
ret[i] = outlines[i];
}
return ret;
}
void NavigationPolygon::add_polygon(const Vector<int> &p_polygon) {
Polygon polygon;
polygon.indices = p_polygon;
polygons.push_back(polygon);
{
MutexLock lock(navmesh_generation);
navmesh.unref();
}
}
void NavigationPolygon::add_outline_at_index(const Vector<Vector2> &p_outline, int p_index) {
outlines.insert(p_index, p_outline);
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rect_cache_dirty = true;
}
int NavigationPolygon::get_polygon_count() const {
return polygons.size();
}
Vector<int> NavigationPolygon::get_polygon(int p_idx) {
ERR_FAIL_INDEX_V(p_idx, polygons.size(), Vector<int>());
return polygons[p_idx].indices;
}
void NavigationPolygon::clear_polygons() {
polygons.clear();
{
MutexLock lock(navmesh_generation);
navmesh.unref();
}
}
Ref<NavigationMesh> NavigationPolygon::get_mesh() {
MutexLock lock(navmesh_generation);
if (navmesh.is_null()) {
navmesh.instantiate();
Vector<Vector3> verts;
{
verts.resize(get_vertices().size());
Vector3 *w = verts.ptrw();
const Vector2 *r = get_vertices().ptr();
for (int i(0); i < get_vertices().size(); i++) {
w[i] = Vector3(r[i].x, 0.0, r[i].y);
}
}
navmesh->set_vertices(verts);
for (int i(0); i < get_polygon_count(); i++) {
navmesh->add_polygon(get_polygon(i));
}
}
return navmesh;
}
void NavigationPolygon::add_outline(const Vector<Vector2> &p_outline) {
outlines.push_back(p_outline);
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rect_cache_dirty = true;
}
int NavigationPolygon::get_outline_count() const {
return outlines.size();
}
void NavigationPolygon::set_outline(int p_idx, const Vector<Vector2> &p_outline) {
ERR_FAIL_INDEX(p_idx, outlines.size());
outlines.write[p_idx] = p_outline;
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rect_cache_dirty = true;
}
void NavigationPolygon::remove_outline(int p_idx) {
ERR_FAIL_INDEX(p_idx, outlines.size());
outlines.remove_at(p_idx);
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rect_cache_dirty = true;
}
Vector<Vector2> NavigationPolygon::get_outline(int p_idx) const {
ERR_FAIL_INDEX_V(p_idx, outlines.size(), Vector<Vector2>());
return outlines[p_idx];
}
void NavigationPolygon::clear_outlines() {
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outlines.clear();
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rect_cache_dirty = true;
}
void NavigationPolygon::make_polygons_from_outlines() {
{
MutexLock lock(navmesh_generation);
navmesh.unref();
}
List<TPPLPoly> in_poly, out_poly;
Vector2 outside_point(-1e10, -1e10);
for (int i = 0; i < outlines.size(); i++) {
Vector<Vector2> ol = outlines[i];
int olsize = ol.size();
if (olsize < 3) {
continue;
}
const Vector2 *r = ol.ptr();
for (int j = 0; j < olsize; j++) {
outside_point.x = MAX(r[j].x, outside_point.x);
outside_point.y = MAX(r[j].y, outside_point.y);
}
}
outside_point += Vector2(0.7239784, 0.819238); //avoid precision issues
for (int i = 0; i < outlines.size(); i++) {
Vector<Vector2> ol = outlines[i];
int olsize = ol.size();
if (olsize < 3) {
continue;
}
const Vector2 *r = ol.ptr();
int interscount = 0;
//test if this is an outer outline
for (int k = 0; k < outlines.size(); k++) {
if (i == k) {
continue; //no self intersect
}
Vector<Vector2> ol2 = outlines[k];
int olsize2 = ol2.size();
if (olsize2 < 3) {
continue;
}
const Vector2 *r2 = ol2.ptr();
for (int l = 0; l < olsize2; l++) {
if (Geometry2D::segment_intersects_segment(r[0], outside_point, r2[l], r2[(l + 1) % olsize2], nullptr)) {
interscount++;
}
}
}
bool outer = (interscount % 2) == 0;
TPPLPoly tp;
tp.Init(olsize);
for (int j = 0; j < olsize; j++) {
tp[j] = r[j];
}
if (outer) {
tp.SetOrientation(TPPL_ORIENTATION_CCW);
} else {
tp.SetOrientation(TPPL_ORIENTATION_CW);
tp.SetHole(true);
}
in_poly.push_back(tp);
}
TPPLPartition tpart;
if (tpart.ConvexPartition_HM(&in_poly, &out_poly) == 0) { //failed!
ERR_PRINT("NavigationPolygon: Convex partition failed! Failed to convert outlines to a valid NavigationMesh."
"\nNavigationPolygon outlines can not overlap vertices or edges inside same outline or with other outlines or have any intersections."
"\nAdd the outmost and largest outline first. To add holes inside this outline add the smaller outlines with opposite winding order.");
return;
}
polygons.clear();
vertices.clear();
HashMap<Vector2, int> points;
for (List<TPPLPoly>::Element *I = out_poly.front(); I; I = I->next()) {
TPPLPoly &tp = I->get();
struct Polygon p;
for (int64_t i = 0; i < tp.GetNumPoints(); i++) {
HashMap<Vector2, int>::Iterator E = points.find(tp[i]);
if (!E) {
E = points.insert(tp[i], vertices.size());
vertices.push_back(tp[i]);
}
p.indices.push_back(E->value);
}
polygons.push_back(p);
}
emit_signal(CoreStringNames::get_singleton()->changed);
}
void NavigationPolygon::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_vertices", "vertices"), &NavigationPolygon::set_vertices);
ClassDB::bind_method(D_METHOD("get_vertices"), &NavigationPolygon::get_vertices);
ClassDB::bind_method(D_METHOD("add_polygon", "polygon"), &NavigationPolygon::add_polygon);
ClassDB::bind_method(D_METHOD("get_polygon_count"), &NavigationPolygon::get_polygon_count);
ClassDB::bind_method(D_METHOD("get_polygon", "idx"), &NavigationPolygon::get_polygon);
ClassDB::bind_method(D_METHOD("clear_polygons"), &NavigationPolygon::clear_polygons);
ClassDB::bind_method(D_METHOD("get_mesh"), &NavigationPolygon::get_mesh);
ClassDB::bind_method(D_METHOD("add_outline", "outline"), &NavigationPolygon::add_outline);
ClassDB::bind_method(D_METHOD("add_outline_at_index", "outline", "index"), &NavigationPolygon::add_outline_at_index);
ClassDB::bind_method(D_METHOD("get_outline_count"), &NavigationPolygon::get_outline_count);
ClassDB::bind_method(D_METHOD("set_outline", "idx", "outline"), &NavigationPolygon::set_outline);
ClassDB::bind_method(D_METHOD("get_outline", "idx"), &NavigationPolygon::get_outline);
ClassDB::bind_method(D_METHOD("remove_outline", "idx"), &NavigationPolygon::remove_outline);
ClassDB::bind_method(D_METHOD("clear_outlines"), &NavigationPolygon::clear_outlines);
ClassDB::bind_method(D_METHOD("make_polygons_from_outlines"), &NavigationPolygon::make_polygons_from_outlines);
ClassDB::bind_method(D_METHOD("_set_polygons", "polygons"), &NavigationPolygon::_set_polygons);
ClassDB::bind_method(D_METHOD("_get_polygons"), &NavigationPolygon::_get_polygons);
ClassDB::bind_method(D_METHOD("_set_outlines", "outlines"), &NavigationPolygon::_set_outlines);
ClassDB::bind_method(D_METHOD("_get_outlines"), &NavigationPolygon::_get_outlines);
ADD_PROPERTY(PropertyInfo(Variant::PACKED_VECTOR2_ARRAY, "vertices", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL), "set_vertices", "get_vertices");
ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "polygons", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL), "_set_polygons", "_get_polygons");
ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "outlines", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL), "_set_outlines", "_get_outlines");
}
/////////////////////////////
void NavigationRegion2D::set_enabled(bool p_enabled) {
if (enabled == p_enabled) {
return;
}
enabled = p_enabled;
if (!is_inside_tree()) {
return;
}
if (!enabled) {
NavigationServer2D::get_singleton()->region_set_map(region, RID());
NavigationServer2D::get_singleton_mut()->disconnect("map_changed", callable_mp(this, &NavigationRegion2D::_map_changed));
} else {
NavigationServer2D::get_singleton()->region_set_map(region, get_world_2d()->get_navigation_map());
NavigationServer2D::get_singleton_mut()->connect("map_changed", callable_mp(this, &NavigationRegion2D::_map_changed));
}
#ifdef DEBUG_ENABLED
if (Engine::get_singleton()->is_editor_hint() || NavigationServer3D::get_singleton()->get_debug_enabled()) {
queue_redraw();
}
#endif // DEBUG_ENABLED
}
bool NavigationRegion2D::is_enabled() const {
return enabled;
}
void NavigationRegion2D::set_navigation_layers(uint32_t p_navigation_layers) {
if (navigation_layers == p_navigation_layers) {
return;
}
navigation_layers = p_navigation_layers;
NavigationServer2D::get_singleton()->region_set_navigation_layers(region, navigation_layers);
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}
uint32_t NavigationRegion2D::get_navigation_layers() const {
return navigation_layers;
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}
void NavigationRegion2D::set_navigation_layer_value(int p_layer_number, bool p_value) {
ERR_FAIL_COND_MSG(p_layer_number < 1, "Navigation layer number must be between 1 and 32 inclusive.");
ERR_FAIL_COND_MSG(p_layer_number > 32, "Navigation layer number must be between 1 and 32 inclusive.");
uint32_t _navigation_layers = get_navigation_layers();
if (p_value) {
_navigation_layers |= 1 << (p_layer_number - 1);
} else {
_navigation_layers &= ~(1 << (p_layer_number - 1));
}
set_navigation_layers(_navigation_layers);
}
bool NavigationRegion2D::get_navigation_layer_value(int p_layer_number) const {
ERR_FAIL_COND_V_MSG(p_layer_number < 1, false, "Navigation layer number must be between 1 and 32 inclusive.");
ERR_FAIL_COND_V_MSG(p_layer_number > 32, false, "Navigation layer number must be between 1 and 32 inclusive.");
return get_navigation_layers() & (1 << (p_layer_number - 1));
}
void NavigationRegion2D::set_enter_cost(real_t p_enter_cost) {
ERR_FAIL_COND_MSG(p_enter_cost < 0.0, "The enter_cost must be positive.");
if (Math::is_equal_approx(enter_cost, p_enter_cost)) {
return;
}
enter_cost = p_enter_cost;
NavigationServer2D::get_singleton()->region_set_enter_cost(region, enter_cost);
}
real_t NavigationRegion2D::get_enter_cost() const {
return enter_cost;
}
void NavigationRegion2D::set_travel_cost(real_t p_travel_cost) {
ERR_FAIL_COND_MSG(p_travel_cost < 0.0, "The travel_cost must be positive.");
if (Math::is_equal_approx(travel_cost, p_travel_cost)) {
return;
}
travel_cost = p_travel_cost;
NavigationServer2D::get_singleton()->region_set_travel_cost(region, travel_cost);
}
real_t NavigationRegion2D::get_travel_cost() const {
return travel_cost;
}
RID NavigationRegion2D::get_region_rid() const {
return region;
}
#ifdef TOOLS_ENABLED
Rect2 NavigationRegion2D::_edit_get_rect() const {
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return navpoly.is_valid() ? navpoly->_edit_get_rect() : Rect2();
}
bool NavigationRegion2D::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const {
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return navpoly.is_valid() ? navpoly->_edit_is_selected_on_click(p_point, p_tolerance) : false;
}
#endif
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void NavigationRegion2D::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_ENTER_TREE: {
if (enabled) {
NavigationServer2D::get_singleton()->region_set_map(region, get_world_2d()->get_navigation_map());
NavigationServer2D::get_singleton_mut()->connect("map_changed", callable_mp(this, &NavigationRegion2D::_map_changed));
}
} break;
case NOTIFICATION_TRANSFORM_CHANGED: {
NavigationServer2D::get_singleton()->region_set_transform(region, get_global_transform());
} break;
case NOTIFICATION_EXIT_TREE: {
NavigationServer2D::get_singleton()->region_set_map(region, RID());
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if (enabled) {
NavigationServer2D::get_singleton_mut()->disconnect("map_changed", callable_mp(this, &NavigationRegion2D::_map_changed));
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}
} break;
case NOTIFICATION_DRAW: {
#ifdef DEBUG_ENABLED
if (is_inside_tree() && (Engine::get_singleton()->is_editor_hint() || NavigationServer3D::get_singleton()->get_debug_enabled()) && navpoly.is_valid()) {
Vector<Vector2> verts = navpoly->get_vertices();
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if (verts.size() < 3) {
return;
}
Color color;
if (enabled) {
color = NavigationServer3D::get_singleton()->get_debug_navigation_geometry_face_color();
} else {
color = NavigationServer3D::get_singleton()->get_debug_navigation_geometry_face_disabled_color();
}
Color doors_color = NavigationServer3D::get_singleton()->get_debug_navigation_edge_connection_color();
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RandomPCG rand;
for (int i = 0; i < navpoly->get_polygon_count(); i++) {
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// An array of vertices for this polygon.
Vector<int> polygon = navpoly->get_polygon(i);
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Vector<Vector2> vertices;
vertices.resize(polygon.size());
for (int j = 0; j < polygon.size(); j++) {
ERR_FAIL_INDEX(polygon[j], verts.size());
vertices.write[j] = verts[polygon[j]];
}
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// Generate the polygon color, slightly randomly modified from the settings one.
Color random_variation_color;
random_variation_color.set_hsv(color.get_h() + rand.random(-1.0, 1.0) * 0.1, color.get_s(), color.get_v() + rand.random(-1.0, 1.0) * 0.2);
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random_variation_color.a = color.a;
Vector<Color> colors;
colors.push_back(random_variation_color);
RS::get_singleton()->canvas_item_add_polygon(get_canvas_item(), vertices, colors);
}
// Draw the region
Transform2D xform = get_global_transform();
const NavigationServer2D *ns = NavigationServer2D::get_singleton();
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real_t radius = ns->map_get_edge_connection_margin(get_world_2d()->get_navigation_map()) / 2.0;
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for (int i = 0; i < ns->region_get_connections_count(region); i++) {
// Two main points
Vector2 a = ns->region_get_connection_pathway_start(region, i);
a = xform.affine_inverse().xform(a);
Vector2 b = ns->region_get_connection_pathway_end(region, i);
b = xform.affine_inverse().xform(b);
draw_line(a, b, doors_color);
// Draw a circle to illustrate the margins.
real_t angle = a.angle_to_point(b);
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draw_arc(a, radius, angle + Math_PI / 2.0, angle - Math_PI / 2.0 + Math_TAU, 10, doors_color);
draw_arc(b, radius, angle - Math_PI / 2.0, angle + Math_PI / 2.0, 10, doors_color);
}
}
#endif // DEBUG_ENABLED
} break;
}
}
void NavigationRegion2D::set_navigation_polygon(const Ref<NavigationPolygon> &p_navpoly) {
if (p_navpoly == navpoly) {
return;
}
if (navpoly.is_valid()) {
navpoly->disconnect(CoreStringNames::get_singleton()->changed, callable_mp(this, &NavigationRegion2D::_navpoly_changed));
}
navpoly = p_navpoly;
NavigationServer2D::get_singleton()->region_set_navpoly(region, p_navpoly);
if (navpoly.is_valid()) {
navpoly->connect(CoreStringNames::get_singleton()->changed, callable_mp(this, &NavigationRegion2D::_navpoly_changed));
}
_navpoly_changed();
update_configuration_warnings();
}
Ref<NavigationPolygon> NavigationRegion2D::get_navigation_polygon() const {
return navpoly;
}
void NavigationRegion2D::_navpoly_changed() {
if (is_inside_tree() && (Engine::get_singleton()->is_editor_hint() || get_tree()->is_debugging_navigation_hint())) {
queue_redraw();
}
if (navpoly.is_valid()) {
NavigationServer2D::get_singleton()->region_set_navpoly(region, navpoly);
}
}
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void NavigationRegion2D::_map_changed(RID p_map) {
#ifdef DEBUG_ENABLED
if (is_inside_tree() && get_world_2d()->get_navigation_map() == p_map) {
queue_redraw();
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}
#endif // DEBUG_ENABLED
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}
PackedStringArray NavigationRegion2D::get_configuration_warnings() const {
PackedStringArray warnings = Node2D::get_configuration_warnings();
if (is_visible_in_tree() && is_inside_tree()) {
if (!navpoly.is_valid()) {
warnings.push_back(RTR("A NavigationMesh resource must be set or created for this node to work. Please set a property or draw a polygon."));
}
}
return warnings;
}
void NavigationRegion2D::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_navigation_polygon", "navpoly"), &NavigationRegion2D::set_navigation_polygon);
ClassDB::bind_method(D_METHOD("get_navigation_polygon"), &NavigationRegion2D::get_navigation_polygon);
ClassDB::bind_method(D_METHOD("set_enabled", "enabled"), &NavigationRegion2D::set_enabled);
ClassDB::bind_method(D_METHOD("is_enabled"), &NavigationRegion2D::is_enabled);
ClassDB::bind_method(D_METHOD("set_navigation_layers", "navigation_layers"), &NavigationRegion2D::set_navigation_layers);
ClassDB::bind_method(D_METHOD("get_navigation_layers"), &NavigationRegion2D::get_navigation_layers);
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ClassDB::bind_method(D_METHOD("set_navigation_layer_value", "layer_number", "value"), &NavigationRegion2D::set_navigation_layer_value);
ClassDB::bind_method(D_METHOD("get_navigation_layer_value", "layer_number"), &NavigationRegion2D::get_navigation_layer_value);
ClassDB::bind_method(D_METHOD("get_region_rid"), &NavigationRegion2D::get_region_rid);
ClassDB::bind_method(D_METHOD("set_enter_cost", "enter_cost"), &NavigationRegion2D::set_enter_cost);
ClassDB::bind_method(D_METHOD("get_enter_cost"), &NavigationRegion2D::get_enter_cost);
ClassDB::bind_method(D_METHOD("set_travel_cost", "travel_cost"), &NavigationRegion2D::set_travel_cost);
ClassDB::bind_method(D_METHOD("get_travel_cost"), &NavigationRegion2D::get_travel_cost);
ClassDB::bind_method(D_METHOD("_navpoly_changed"), &NavigationRegion2D::_navpoly_changed);
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "navpoly", PROPERTY_HINT_RESOURCE_TYPE, "NavigationPolygon"), "set_navigation_polygon", "get_navigation_polygon");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "enabled"), "set_enabled", "is_enabled");
ADD_PROPERTY(PropertyInfo(Variant::INT, "navigation_layers", PROPERTY_HINT_LAYERS_2D_NAVIGATION), "set_navigation_layers", "get_navigation_layers");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "enter_cost"), "set_enter_cost", "get_enter_cost");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "travel_cost"), "set_travel_cost", "get_travel_cost");
}
NavigationRegion2D::NavigationRegion2D() {
set_notify_transform(true);
region = NavigationServer2D::get_singleton()->region_create();
NavigationServer2D::get_singleton()->region_set_enter_cost(region, get_enter_cost());
NavigationServer2D::get_singleton()->region_set_travel_cost(region, get_travel_cost());
#ifdef DEBUG_ENABLED
NavigationServer3D::get_singleton_mut()->connect("map_changed", callable_mp(this, &NavigationRegion2D::_map_changed));
NavigationServer3D::get_singleton_mut()->connect("navigation_debug_changed", callable_mp(this, &NavigationRegion2D::_map_changed));
#endif // DEBUG_ENABLED
}
NavigationRegion2D::~NavigationRegion2D() {
NavigationServer2D::get_singleton()->free(region);
#ifdef DEBUG_ENABLED
NavigationServer3D::get_singleton_mut()->disconnect("map_changed", callable_mp(this, &NavigationRegion2D::_map_changed));
NavigationServer3D::get_singleton_mut()->disconnect("navigation_debug_changed", callable_mp(this, &NavigationRegion2D::_map_changed));
#endif // DEBUG_ENABLED
}