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godot/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) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 "scene/resources/world_2d.h"
#include "servers/navigation_server_2d.h"
#include "servers/navigation_server_3d.h"
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()->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()->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);
}
uint32_t NavigationRegion2D::get_navigation_layers() const {
return navigation_layers;
}
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 {
return navigation_polygon.is_valid() ? navigation_polygon->_edit_get_rect() : Rect2();
}
bool NavigationRegion2D::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const {
return navigation_polygon.is_valid() ? navigation_polygon->_edit_is_selected_on_click(p_point, p_tolerance) : false;
}
#endif
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()->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());
if (enabled) {
NavigationServer2D::get_singleton()->disconnect("map_changed", callable_mp(this, &NavigationRegion2D::_map_changed));
}
} break;
case NOTIFICATION_DRAW: {
#ifdef DEBUG_ENABLED
if (is_inside_tree() && (Engine::get_singleton()->is_editor_hint() || NavigationServer3D::get_singleton()->get_debug_enabled()) && navigation_polygon.is_valid()) {
Vector<Vector2> verts = navigation_polygon->get_vertices();
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();
RandomPCG rand;
for (int i = 0; i < navigation_polygon->get_polygon_count(); i++) {
// An array of vertices for this polygon.
Vector<int> polygon = navigation_polygon->get_polygon(i);
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]];
}
// 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);
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();
real_t radius = ns->map_get_edge_connection_margin(get_world_2d()->get_navigation_map()) / 2.0;
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);
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_navigation_polygon) {
if (p_navigation_polygon == navigation_polygon) {
return;
}
if (navigation_polygon.is_valid()) {
navigation_polygon->disconnect(CoreStringNames::get_singleton()->changed, callable_mp(this, &NavigationRegion2D::_navigation_polygon_changed));
}
navigation_polygon = p_navigation_polygon;
NavigationServer2D::get_singleton()->region_set_navigation_polygon(region, p_navigation_polygon);
if (navigation_polygon.is_valid()) {
navigation_polygon->connect(CoreStringNames::get_singleton()->changed, callable_mp(this, &NavigationRegion2D::_navigation_polygon_changed));
}
_navigation_polygon_changed();
update_configuration_warnings();
}
Ref<NavigationPolygon> NavigationRegion2D::get_navigation_polygon() const {
return navigation_polygon;
}
void NavigationRegion2D::_navigation_polygon_changed() {
if (is_inside_tree() && (Engine::get_singleton()->is_editor_hint() || get_tree()->is_debugging_navigation_hint())) {
queue_redraw();
}
if (navigation_polygon.is_valid()) {
NavigationServer2D::get_singleton()->region_set_navigation_polygon(region, navigation_polygon);
}
}
void NavigationRegion2D::_map_changed(RID p_map) {
#ifdef DEBUG_ENABLED
if (is_inside_tree() && get_world_2d()->get_navigation_map() == p_map) {
queue_redraw();
}
#endif // DEBUG_ENABLED
}
PackedStringArray NavigationRegion2D::get_configuration_warnings() const {
PackedStringArray warnings = Node2D::get_configuration_warnings();
if (is_visible_in_tree() && is_inside_tree()) {
if (!navigation_polygon.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", "navigation_polygon"), &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);
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("_navigation_polygon_changed"), &NavigationRegion2D::_navigation_polygon_changed);
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "navigation_polygon", 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");
}
#ifndef DISABLE_DEPRECATED
// Compatibility with earlier 4.0 betas.
bool NavigationRegion2D::_set(const StringName &p_name, const Variant &p_value) {
if (p_name == "navpoly") {
set_navigation_polygon(p_value);
return true;
}
return false;
}
bool NavigationRegion2D::_get(const StringName &p_name, Variant &r_ret) const {
if (p_name == "navpoly") {
r_ret = get_navigation_polygon();
return true;
}
return false;
}
#endif // DISABLE_DEPRECATED
NavigationRegion2D::NavigationRegion2D() {
set_notify_transform(true);
region = NavigationServer2D::get_singleton()->region_create();
NavigationServer2D::get_singleton()->region_set_owner_id(region, get_instance_id());
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()->connect("map_changed", callable_mp(this, &NavigationRegion2D::_map_changed));
NavigationServer3D::get_singleton()->connect("navigation_debug_changed", callable_mp(this, &NavigationRegion2D::_map_changed));
#endif // DEBUG_ENABLED
}
NavigationRegion2D::~NavigationRegion2D() {
ERR_FAIL_NULL(NavigationServer2D::get_singleton());
NavigationServer2D::get_singleton()->free(region);
#ifdef DEBUG_ENABLED
NavigationServer3D::get_singleton()->disconnect("map_changed", callable_mp(this, &NavigationRegion2D::_map_changed));
NavigationServer3D::get_singleton()->disconnect("navigation_debug_changed", callable_mp(this, &NavigationRegion2D::_map_changed));
#endif // DEBUG_ENABLED
}
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