355 lines
14 KiB
C++
355 lines
14 KiB
C++
/**************************************************************************/
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/* navigation_region_2d.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "navigation_region_2d.h"
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#include "core/core_string_names.h"
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#include "scene/resources/world_2d.h"
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#include "servers/navigation_server_2d.h"
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#include "servers/navigation_server_3d.h"
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void NavigationRegion2D::set_enabled(bool p_enabled) {
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if (enabled == p_enabled) {
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return;
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}
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enabled = p_enabled;
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if (!is_inside_tree()) {
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return;
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}
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if (!enabled) {
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NavigationServer2D::get_singleton()->region_set_map(region, RID());
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NavigationServer2D::get_singleton()->disconnect("map_changed", callable_mp(this, &NavigationRegion2D::_map_changed));
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} else {
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NavigationServer2D::get_singleton()->region_set_map(region, get_world_2d()->get_navigation_map());
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NavigationServer2D::get_singleton()->connect("map_changed", callable_mp(this, &NavigationRegion2D::_map_changed));
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}
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#ifdef DEBUG_ENABLED
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if (Engine::get_singleton()->is_editor_hint() || NavigationServer3D::get_singleton()->get_debug_enabled()) {
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queue_redraw();
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}
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#endif // DEBUG_ENABLED
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}
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bool NavigationRegion2D::is_enabled() const {
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return enabled;
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}
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void NavigationRegion2D::set_navigation_layers(uint32_t p_navigation_layers) {
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if (navigation_layers == p_navigation_layers) {
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return;
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}
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navigation_layers = p_navigation_layers;
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NavigationServer2D::get_singleton()->region_set_navigation_layers(region, navigation_layers);
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}
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uint32_t NavigationRegion2D::get_navigation_layers() const {
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return navigation_layers;
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}
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void NavigationRegion2D::set_navigation_layer_value(int p_layer_number, bool p_value) {
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ERR_FAIL_COND_MSG(p_layer_number < 1, "Navigation layer number must be between 1 and 32 inclusive.");
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ERR_FAIL_COND_MSG(p_layer_number > 32, "Navigation layer number must be between 1 and 32 inclusive.");
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uint32_t _navigation_layers = get_navigation_layers();
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if (p_value) {
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_navigation_layers |= 1 << (p_layer_number - 1);
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} else {
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_navigation_layers &= ~(1 << (p_layer_number - 1));
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}
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set_navigation_layers(_navigation_layers);
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}
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bool NavigationRegion2D::get_navigation_layer_value(int p_layer_number) const {
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ERR_FAIL_COND_V_MSG(p_layer_number < 1, false, "Navigation layer number must be between 1 and 32 inclusive.");
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ERR_FAIL_COND_V_MSG(p_layer_number > 32, false, "Navigation layer number must be between 1 and 32 inclusive.");
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return get_navigation_layers() & (1 << (p_layer_number - 1));
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}
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void NavigationRegion2D::set_enter_cost(real_t p_enter_cost) {
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ERR_FAIL_COND_MSG(p_enter_cost < 0.0, "The enter_cost must be positive.");
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if (Math::is_equal_approx(enter_cost, p_enter_cost)) {
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return;
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}
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enter_cost = p_enter_cost;
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NavigationServer2D::get_singleton()->region_set_enter_cost(region, enter_cost);
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}
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real_t NavigationRegion2D::get_enter_cost() const {
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return enter_cost;
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}
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void NavigationRegion2D::set_travel_cost(real_t p_travel_cost) {
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ERR_FAIL_COND_MSG(p_travel_cost < 0.0, "The travel_cost must be positive.");
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if (Math::is_equal_approx(travel_cost, p_travel_cost)) {
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return;
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}
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travel_cost = p_travel_cost;
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NavigationServer2D::get_singleton()->region_set_travel_cost(region, travel_cost);
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}
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real_t NavigationRegion2D::get_travel_cost() const {
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return travel_cost;
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}
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RID NavigationRegion2D::get_region_rid() const {
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return region;
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}
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#ifdef TOOLS_ENABLED
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Rect2 NavigationRegion2D::_edit_get_rect() const {
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return navigation_polygon.is_valid() ? navigation_polygon->_edit_get_rect() : Rect2();
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}
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bool NavigationRegion2D::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const {
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return navigation_polygon.is_valid() ? navigation_polygon->_edit_is_selected_on_click(p_point, p_tolerance) : false;
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}
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#endif
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void NavigationRegion2D::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_ENTER_TREE: {
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if (enabled) {
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NavigationServer2D::get_singleton()->region_set_map(region, get_world_2d()->get_navigation_map());
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NavigationServer2D::get_singleton()->connect("map_changed", callable_mp(this, &NavigationRegion2D::_map_changed));
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}
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} break;
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case NOTIFICATION_TRANSFORM_CHANGED: {
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NavigationServer2D::get_singleton()->region_set_transform(region, get_global_transform());
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} break;
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case NOTIFICATION_EXIT_TREE: {
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NavigationServer2D::get_singleton()->region_set_map(region, RID());
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if (enabled) {
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NavigationServer2D::get_singleton()->disconnect("map_changed", callable_mp(this, &NavigationRegion2D::_map_changed));
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}
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} break;
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case NOTIFICATION_DRAW: {
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#ifdef DEBUG_ENABLED
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if (is_inside_tree() && (Engine::get_singleton()->is_editor_hint() || NavigationServer3D::get_singleton()->get_debug_enabled()) && navigation_polygon.is_valid()) {
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Vector<Vector2> verts = navigation_polygon->get_vertices();
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if (verts.size() < 3) {
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return;
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}
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Color color;
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if (enabled) {
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color = NavigationServer3D::get_singleton()->get_debug_navigation_geometry_face_color();
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} else {
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color = NavigationServer3D::get_singleton()->get_debug_navigation_geometry_face_disabled_color();
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}
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Color doors_color = NavigationServer3D::get_singleton()->get_debug_navigation_edge_connection_color();
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RandomPCG rand;
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for (int i = 0; i < navigation_polygon->get_polygon_count(); i++) {
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// An array of vertices for this polygon.
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Vector<int> polygon = navigation_polygon->get_polygon(i);
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Vector<Vector2> vertices;
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vertices.resize(polygon.size());
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for (int j = 0; j < polygon.size(); j++) {
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ERR_FAIL_INDEX(polygon[j], verts.size());
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vertices.write[j] = verts[polygon[j]];
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}
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// Generate the polygon color, slightly randomly modified from the settings one.
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Color random_variation_color;
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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;
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Vector<Color> colors;
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colors.push_back(random_variation_color);
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RS::get_singleton()->canvas_item_add_polygon(get_canvas_item(), vertices, colors);
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}
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// Draw the region
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Transform2D xform = get_global_transform();
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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++) {
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// Two main points
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Vector2 a = ns->region_get_connection_pathway_start(region, i);
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a = xform.affine_inverse().xform(a);
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Vector2 b = ns->region_get_connection_pathway_end(region, i);
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b = xform.affine_inverse().xform(b);
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draw_line(a, b, doors_color);
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// Draw a circle to illustrate the margins.
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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);
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draw_arc(b, radius, angle - Math_PI / 2.0, angle + Math_PI / 2.0, 10, doors_color);
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}
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}
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#endif // DEBUG_ENABLED
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} break;
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}
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}
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void NavigationRegion2D::set_navigation_polygon(const Ref<NavigationPolygon> &p_navigation_polygon) {
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if (p_navigation_polygon == navigation_polygon) {
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return;
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}
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if (navigation_polygon.is_valid()) {
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navigation_polygon->disconnect(CoreStringNames::get_singleton()->changed, callable_mp(this, &NavigationRegion2D::_navigation_polygon_changed));
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}
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navigation_polygon = p_navigation_polygon;
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NavigationServer2D::get_singleton()->region_set_navigation_polygon(region, p_navigation_polygon);
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if (navigation_polygon.is_valid()) {
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navigation_polygon->connect(CoreStringNames::get_singleton()->changed, callable_mp(this, &NavigationRegion2D::_navigation_polygon_changed));
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}
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_navigation_polygon_changed();
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update_configuration_warnings();
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}
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Ref<NavigationPolygon> NavigationRegion2D::get_navigation_polygon() const {
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return navigation_polygon;
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}
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void NavigationRegion2D::_navigation_polygon_changed() {
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if (is_inside_tree() && (Engine::get_singleton()->is_editor_hint() || get_tree()->is_debugging_navigation_hint())) {
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queue_redraw();
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}
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if (navigation_polygon.is_valid()) {
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NavigationServer2D::get_singleton()->region_set_navigation_polygon(region, navigation_polygon);
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}
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}
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void NavigationRegion2D::_map_changed(RID p_map) {
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#ifdef DEBUG_ENABLED
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if (is_inside_tree() && get_world_2d()->get_navigation_map() == p_map) {
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queue_redraw();
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}
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#endif // DEBUG_ENABLED
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}
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PackedStringArray NavigationRegion2D::get_configuration_warnings() const {
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PackedStringArray warnings = Node2D::get_configuration_warnings();
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if (is_visible_in_tree() && is_inside_tree()) {
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if (!navigation_polygon.is_valid()) {
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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."));
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}
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}
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return warnings;
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}
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void NavigationRegion2D::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_navigation_polygon", "navigation_polygon"), &NavigationRegion2D::set_navigation_polygon);
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ClassDB::bind_method(D_METHOD("get_navigation_polygon"), &NavigationRegion2D::get_navigation_polygon);
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ClassDB::bind_method(D_METHOD("set_enabled", "enabled"), &NavigationRegion2D::set_enabled);
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ClassDB::bind_method(D_METHOD("is_enabled"), &NavigationRegion2D::is_enabled);
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ClassDB::bind_method(D_METHOD("set_navigation_layers", "navigation_layers"), &NavigationRegion2D::set_navigation_layers);
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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);
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ClassDB::bind_method(D_METHOD("get_navigation_layer_value", "layer_number"), &NavigationRegion2D::get_navigation_layer_value);
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ClassDB::bind_method(D_METHOD("get_region_rid"), &NavigationRegion2D::get_region_rid);
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ClassDB::bind_method(D_METHOD("set_enter_cost", "enter_cost"), &NavigationRegion2D::set_enter_cost);
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ClassDB::bind_method(D_METHOD("get_enter_cost"), &NavigationRegion2D::get_enter_cost);
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ClassDB::bind_method(D_METHOD("set_travel_cost", "travel_cost"), &NavigationRegion2D::set_travel_cost);
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ClassDB::bind_method(D_METHOD("get_travel_cost"), &NavigationRegion2D::get_travel_cost);
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ClassDB::bind_method(D_METHOD("_navigation_polygon_changed"), &NavigationRegion2D::_navigation_polygon_changed);
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "navigation_polygon", PROPERTY_HINT_RESOURCE_TYPE, "NavigationPolygon"), "set_navigation_polygon", "get_navigation_polygon");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "enabled"), "set_enabled", "is_enabled");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "navigation_layers", PROPERTY_HINT_LAYERS_2D_NAVIGATION), "set_navigation_layers", "get_navigation_layers");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "enter_cost"), "set_enter_cost", "get_enter_cost");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "travel_cost"), "set_travel_cost", "get_travel_cost");
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}
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#ifndef DISABLE_DEPRECATED
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// Compatibility with earlier 4.0 betas.
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bool NavigationRegion2D::_set(const StringName &p_name, const Variant &p_value) {
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if (p_name == "navpoly") {
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set_navigation_polygon(p_value);
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return true;
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}
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return false;
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}
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bool NavigationRegion2D::_get(const StringName &p_name, Variant &r_ret) const {
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if (p_name == "navpoly") {
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r_ret = get_navigation_polygon();
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return true;
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}
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return false;
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}
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#endif // DISABLE_DEPRECATED
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NavigationRegion2D::NavigationRegion2D() {
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set_notify_transform(true);
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set_hide_clip_children(true);
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region = NavigationServer2D::get_singleton()->region_create();
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NavigationServer2D::get_singleton()->region_set_owner_id(region, get_instance_id());
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NavigationServer2D::get_singleton()->region_set_enter_cost(region, get_enter_cost());
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NavigationServer2D::get_singleton()->region_set_travel_cost(region, get_travel_cost());
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#ifdef DEBUG_ENABLED
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NavigationServer3D::get_singleton()->connect("map_changed", callable_mp(this, &NavigationRegion2D::_map_changed));
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NavigationServer3D::get_singleton()->connect("navigation_debug_changed", callable_mp(this, &NavigationRegion2D::_map_changed));
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#endif // DEBUG_ENABLED
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}
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NavigationRegion2D::~NavigationRegion2D() {
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ERR_FAIL_NULL(NavigationServer2D::get_singleton());
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NavigationServer2D::get_singleton()->free(region);
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#ifdef DEBUG_ENABLED
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NavigationServer3D::get_singleton()->disconnect("map_changed", callable_mp(this, &NavigationRegion2D::_map_changed));
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NavigationServer3D::get_singleton()->disconnect("navigation_debug_changed", callable_mp(this, &NavigationRegion2D::_map_changed));
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#endif // DEBUG_ENABLED
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}
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