mirror of
https://github.com/Relintai/pandemonium_engine.git
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346 lines
13 KiB
C++
346 lines
13 KiB
C++
/*************************************************************************/
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/* navigation_polygon.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) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
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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_polygon_instance.h"
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#include "core/config/engine.h"
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#include "core/core_string_names.h"
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#include "core/os/mutex.h"
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#include "navigation_2d.h"
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#include "scene/resources/navigation_mesh.h"
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#include "scene/resources/navigation_polygon.h"
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#include "scene/resources/world_2d.h"
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#include "servers/navigation_2d_server.h"
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#include "servers/navigation_server.h"
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#include "thirdparty/misc/triangulator.h"
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void NavigationPolygonInstance::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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Navigation2DServer::get_singleton()->region_set_map(region, RID());
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Navigation2DServer::get_singleton_mut()->disconnect("map_changed", this, "_map_changed");
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} else {
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if (navigation != nullptr) {
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Navigation2DServer::get_singleton()->region_set_map(region, navigation->get_rid());
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} else {
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Navigation2DServer::get_singleton()->region_set_map(region, get_world_2d()->get_navigation_map());
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}
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Navigation2DServer::get_singleton_mut()->connect("map_changed", this, "_map_changed");
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}
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#ifdef DEBUG_ENABLED
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if (Engine::get_singleton()->is_editor_hint() || NavigationServer::get_singleton()->get_debug_enabled()) {
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update();
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}
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#endif // DEBUG_ENABLED
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}
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bool NavigationPolygonInstance::is_enabled() const {
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return enabled;
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}
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void NavigationPolygonInstance::set_navigation_layers(uint32_t p_navigation_layers) {
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navigation_layers = p_navigation_layers;
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Navigation2DServer::get_singleton()->region_set_navigation_layers(region, navigation_layers);
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}
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uint32_t NavigationPolygonInstance::get_navigation_layers() const {
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return navigation_layers;
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}
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void NavigationPolygonInstance::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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enter_cost = MAX(p_enter_cost, 0.0);
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Navigation2DServer::get_singleton()->region_set_enter_cost(region, p_enter_cost);
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}
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real_t NavigationPolygonInstance::get_enter_cost() const {
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return enter_cost;
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}
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void NavigationPolygonInstance::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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travel_cost = MAX(p_travel_cost, 0.0);
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Navigation2DServer::get_singleton()->region_set_enter_cost(region, travel_cost);
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}
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real_t NavigationPolygonInstance::get_travel_cost() const {
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return travel_cost;
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}
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RID NavigationPolygonInstance::get_region_rid() const {
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return region;
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}
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/////////////////////////////
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#ifdef TOOLS_ENABLED
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Rect2 NavigationPolygonInstance::_edit_get_rect() const {
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return navpoly.is_valid() ? navpoly->_edit_get_rect() : Rect2();
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}
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bool NavigationPolygonInstance::_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;
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}
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#endif
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void NavigationPolygonInstance::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_ENTER_TREE: {
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Node2D *c = this;
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while (c) {
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navigation = Object::cast_to<Navigation2D>(c);
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if (navigation) {
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if (enabled) {
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Navigation2DServer::get_singleton()->region_set_map(region, navigation->get_rid());
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}
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break;
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}
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c = Object::cast_to<Node2D>(c->get_parent());
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}
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if (enabled && navigation == nullptr) {
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// did not find a valid navigation node parent, fallback to default navigation map on world resource
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Navigation2DServer::get_singleton()->region_set_map(region, get_world_2d()->get_navigation_map());
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}
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if (enabled) {
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Navigation2DServer::get_singleton_mut()->connect("map_changed", this, "_map_changed");
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}
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} break;
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case NOTIFICATION_TRANSFORM_CHANGED: {
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Navigation2DServer::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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if (navigation) {
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Navigation2DServer::get_singleton()->region_set_map(region, RID());
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}
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navigation = nullptr;
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if (enabled) {
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Navigation2DServer::get_singleton_mut()->disconnect("map_changed", this, "_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() || NavigationServer::get_singleton()->get_debug_enabled()) && navpoly.is_valid()) {
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PoolVector<Vector2> verts = navpoly->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 = NavigationServer::get_singleton()->get_debug_navigation_geometry_face_color();
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} else {
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color = NavigationServer::get_singleton()->get_debug_navigation_geometry_face_disabled_color();
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}
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Color doors_color = NavigationServer::get_singleton()->get_debug_navigation_edge_connection_color();
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RandomPCG rand;
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for (int i = 0; i < navpoly->get_polygon_count(); i++) {
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// An array of vertices for this polygon.
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Vector<int> polygon = navpoly->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 Navigation2DServer *ns = Navigation2DServer::get_singleton();
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real_t radius = 1.0;
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if (navigation != nullptr) {
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radius = Navigation2DServer::get_singleton()->map_get_edge_connection_margin(navigation->get_rid());
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} else {
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radius = Navigation2DServer::get_singleton()->map_get_edge_connection_margin(get_world_2d()->get_navigation_map());
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}
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radius = radius * 0.5;
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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 NavigationPolygonInstance::set_navigation_polygon(const Ref<NavigationPolygon> &p_navpoly) {
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if (p_navpoly == navpoly) {
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return;
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}
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if (navpoly.is_valid()) {
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navpoly->disconnect(CoreStringNames::get_singleton()->changed, this, "_navpoly_changed");
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}
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navpoly = p_navpoly;
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Navigation2DServer::get_singleton()->region_set_navpoly(region, p_navpoly);
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if (navpoly.is_valid()) {
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navpoly->connect(CoreStringNames::get_singleton()->changed, this, "_navpoly_changed");
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}
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_navpoly_changed();
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_change_notify("navpoly");
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update_configuration_warning();
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}
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Ref<NavigationPolygon> NavigationPolygonInstance::get_navigation_polygon() const {
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return navpoly;
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}
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void NavigationPolygonInstance::_navpoly_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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update();
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}
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if (navpoly.is_valid()) {
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Navigation2DServer::get_singleton()->region_set_navpoly(region, navpoly);
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}
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}
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void NavigationPolygonInstance::_map_changed(RID p_map) {
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#ifdef DEBUG_ENABLED
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if (navigation != nullptr && enabled && (navigation->get_rid() == p_map)) {
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update();
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} else if (is_inside_tree() && enabled && (get_world_2d()->get_navigation_map() == p_map)) {
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update();
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}
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#endif // DEBUG_ENABLED
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}
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String NavigationPolygonInstance::get_configuration_warning() const {
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if (!is_visible_in_tree() || !is_inside_tree()) {
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return String();
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}
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String warning = Node2D::get_configuration_warning();
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if (!navpoly.is_valid()) {
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if (warning != String()) {
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warning += "\n\n";
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}
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warning += TTR("A NavigationPolygon 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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return warning;
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}
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void NavigationPolygonInstance::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_navigation_polygon", "navpoly"), &NavigationPolygonInstance::set_navigation_polygon);
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ClassDB::bind_method(D_METHOD("get_navigation_polygon"), &NavigationPolygonInstance::get_navigation_polygon);
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ClassDB::bind_method(D_METHOD("set_enabled", "enabled"), &NavigationPolygonInstance::set_enabled);
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ClassDB::bind_method(D_METHOD("is_enabled"), &NavigationPolygonInstance::is_enabled);
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ClassDB::bind_method(D_METHOD("set_navigation_layers", "navigation_layers"), &NavigationPolygonInstance::set_navigation_layers);
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ClassDB::bind_method(D_METHOD("get_navigation_layers"), &NavigationPolygonInstance::get_navigation_layers);
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ClassDB::bind_method(D_METHOD("get_region_rid"), &NavigationPolygonInstance::get_region_rid);
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ClassDB::bind_method(D_METHOD("set_enter_cost", "enter_cost"), &NavigationPolygonInstance::set_enter_cost);
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ClassDB::bind_method(D_METHOD("get_enter_cost"), &NavigationPolygonInstance::get_enter_cost);
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ClassDB::bind_method(D_METHOD("set_travel_cost", "travel_cost"), &NavigationPolygonInstance::set_travel_cost);
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ClassDB::bind_method(D_METHOD("get_travel_cost"), &NavigationPolygonInstance::get_travel_cost);
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ClassDB::bind_method(D_METHOD("_navpoly_changed"), &NavigationPolygonInstance::_navpoly_changed);
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "navpoly", 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::REAL, "enter_cost"), "set_enter_cost", "get_enter_cost");
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ADD_PROPERTY(PropertyInfo(Variant::REAL, "travel_cost"), "set_travel_cost", "get_travel_cost");
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ClassDB::bind_method(D_METHOD("_map_changed"), &NavigationPolygonInstance::_map_changed);
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}
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NavigationPolygonInstance::NavigationPolygonInstance() {
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enabled = true;
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set_notify_transform(true);
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region = Navigation2DServer::get_singleton()->region_create();
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navigation = nullptr;
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enter_cost = 0.0;
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travel_cost = 1.0;
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navigation_layers = 1;
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Navigation2DServer::get_singleton()->region_set_enter_cost(region, get_enter_cost());
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Navigation2DServer::get_singleton()->region_set_travel_cost(region, get_travel_cost());
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#ifdef DEBUG_ENABLED
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Navigation2DServer::get_singleton_mut()->connect("map_changed", this, "_map_changed");
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NavigationServer::get_singleton_mut()->connect("navigation_debug_changed", this, "_map_changed");
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#endif // DEBUG_ENABLED
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}
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NavigationPolygonInstance::~NavigationPolygonInstance() {
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Navigation2DServer::get_singleton()->free(region);
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#ifdef DEBUG_ENABLED
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Navigation2DServer::get_singleton_mut()->disconnect("map_changed", this, "_map_changed");
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NavigationServer::get_singleton_mut()->disconnect("navigation_debug_changed", this, "_map_changed");
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#endif // DEBUG_ENABLED
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}
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