283 lines
11 KiB
C++
283 lines
11 KiB
C++
/*************************************************************************/
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/* navigation_region_3d.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_region_3d.h"
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#include "mesh_instance_3d.h"
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#include "servers/navigation_server_3d.h"
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void NavigationRegion3D::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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NavigationServer3D::get_singleton()->region_set_map(region, RID());
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} else {
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NavigationServer3D::get_singleton()->region_set_map(region, get_world_3d()->get_navigation_map());
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}
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if (debug_view) {
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MeshInstance3D *dm = Object::cast_to<MeshInstance3D>(debug_view);
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if (is_enabled()) {
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dm->set_material_override(get_tree()->get_debug_navigation_material());
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} else {
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dm->set_material_override(get_tree()->get_debug_navigation_disabled_material());
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}
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}
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update_gizmos();
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}
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bool NavigationRegion3D::is_enabled() const {
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return enabled;
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}
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void NavigationRegion3D::set_layers(uint32_t p_layers) {
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NavigationServer3D::get_singleton()->region_set_layers(region, p_layers);
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}
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uint32_t NavigationRegion3D::get_layers() const {
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return NavigationServer3D::get_singleton()->region_get_layers(region);
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}
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void NavigationRegion3D::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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NavigationServer3D::get_singleton()->region_set_enter_cost(region, p_enter_cost);
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}
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real_t NavigationRegion3D::get_enter_cost() const {
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return enter_cost;
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}
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void NavigationRegion3D::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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NavigationServer3D::get_singleton()->region_set_enter_cost(region, travel_cost);
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}
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real_t NavigationRegion3D::get_travel_cost() const {
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return travel_cost;
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}
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RID NavigationRegion3D::get_region_rid() const {
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return region;
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}
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/////////////////////////////
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void NavigationRegion3D::_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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NavigationServer3D::get_singleton()->region_set_map(region, get_world_3d()->get_navigation_map());
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}
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if (navmesh.is_valid() && get_tree()->is_debugging_navigation_hint()) {
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MeshInstance3D *dm = memnew(MeshInstance3D);
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dm->set_mesh(navmesh->get_debug_mesh());
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if (is_enabled()) {
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dm->set_material_override(get_tree()->get_debug_navigation_material());
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} else {
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dm->set_material_override(get_tree()->get_debug_navigation_disabled_material());
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}
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add_child(dm);
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debug_view = dm;
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}
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} break;
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case NOTIFICATION_TRANSFORM_CHANGED: {
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NavigationServer3D::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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NavigationServer3D::get_singleton()->region_set_map(region, RID());
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if (debug_view) {
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debug_view->queue_delete();
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debug_view = nullptr;
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}
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} break;
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}
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}
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void NavigationRegion3D::set_navigation_mesh(const Ref<NavigationMesh> &p_navmesh) {
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if (p_navmesh == navmesh) {
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return;
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}
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if (navmesh.is_valid()) {
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navmesh->disconnect("changed", callable_mp(this, &NavigationRegion3D::_navigation_changed));
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}
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navmesh = p_navmesh;
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if (navmesh.is_valid()) {
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navmesh->connect("changed", callable_mp(this, &NavigationRegion3D::_navigation_changed));
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}
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NavigationServer3D::get_singleton()->region_set_navmesh(region, p_navmesh);
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if (debug_view == nullptr && is_inside_tree() && navmesh.is_valid() && get_tree()->is_debugging_navigation_hint()) {
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MeshInstance3D *dm = memnew(MeshInstance3D);
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dm->set_mesh(navmesh->get_debug_mesh());
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if (is_enabled()) {
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dm->set_material_override(get_tree()->get_debug_navigation_material());
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} else {
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dm->set_material_override(get_tree()->get_debug_navigation_disabled_material());
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}
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add_child(dm);
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debug_view = dm;
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}
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if (debug_view && navmesh.is_valid()) {
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Object::cast_to<MeshInstance3D>(debug_view)->set_mesh(navmesh->get_debug_mesh());
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}
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emit_signal(SNAME("navigation_mesh_changed"));
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update_gizmos();
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update_configuration_warnings();
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}
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Ref<NavigationMesh> NavigationRegion3D::get_navigation_mesh() const {
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return navmesh;
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}
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struct BakeThreadsArgs {
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NavigationRegion3D *nav_region = nullptr;
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};
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void _bake_navigation_mesh(void *p_user_data) {
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BakeThreadsArgs *args = static_cast<BakeThreadsArgs *>(p_user_data);
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if (args->nav_region->get_navigation_mesh().is_valid()) {
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Ref<NavigationMesh> nav_mesh = args->nav_region->get_navigation_mesh()->duplicate();
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NavigationServer3D::get_singleton()->region_bake_navmesh(nav_mesh, args->nav_region);
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args->nav_region->call_deferred(SNAME("_bake_finished"), nav_mesh);
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memdelete(args);
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} else {
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ERR_PRINT("Can't bake the navigation mesh if the `NavigationMesh` resource doesn't exist");
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args->nav_region->call_deferred(SNAME("_bake_finished"), Ref<NavigationMesh>());
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memdelete(args);
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}
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}
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void NavigationRegion3D::bake_navigation_mesh(bool p_on_thread) {
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ERR_FAIL_COND_MSG(bake_thread.is_started(), "Unable to start another bake request. The navigation mesh bake thread is already baking a navigation mesh.");
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BakeThreadsArgs *args = memnew(BakeThreadsArgs);
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args->nav_region = this;
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if (p_on_thread && !OS::get_singleton()->can_use_threads()) {
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WARN_PRINT("NavigationMesh bake 'on_thread' will be disabled as the current OS does not support multiple threads."
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"\nAs a fallback the navigation mesh will bake on the main thread which can cause framerate issues.");
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}
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if (p_on_thread && OS::get_singleton()->can_use_threads()) {
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bake_thread.start(_bake_navigation_mesh, args);
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} else {
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_bake_navigation_mesh(args);
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}
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}
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void NavigationRegion3D::_bake_finished(Ref<NavigationMesh> p_nav_mesh) {
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set_navigation_mesh(p_nav_mesh);
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bake_thread.wait_to_finish();
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emit_signal(SNAME("bake_finished"));
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}
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TypedArray<String> NavigationRegion3D::get_configuration_warnings() const {
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TypedArray<String> warnings = Node::get_configuration_warnings();
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if (is_visible_in_tree() && is_inside_tree()) {
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if (!navmesh.is_valid()) {
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warnings.push_back(RTR("A NavigationMesh resource must be set or created for this node to work."));
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}
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}
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return warnings;
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}
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void NavigationRegion3D::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_navigation_mesh", "navmesh"), &NavigationRegion3D::set_navigation_mesh);
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ClassDB::bind_method(D_METHOD("get_navigation_mesh"), &NavigationRegion3D::get_navigation_mesh);
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ClassDB::bind_method(D_METHOD("set_enabled", "enabled"), &NavigationRegion3D::set_enabled);
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ClassDB::bind_method(D_METHOD("is_enabled"), &NavigationRegion3D::is_enabled);
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ClassDB::bind_method(D_METHOD("set_layers", "layers"), &NavigationRegion3D::set_layers);
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ClassDB::bind_method(D_METHOD("get_layers"), &NavigationRegion3D::get_layers);
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ClassDB::bind_method(D_METHOD("get_region_rid"), &NavigationRegion3D::get_region_rid);
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ClassDB::bind_method(D_METHOD("set_enter_cost", "enter_cost"), &NavigationRegion3D::set_enter_cost);
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ClassDB::bind_method(D_METHOD("get_enter_cost"), &NavigationRegion3D::get_enter_cost);
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ClassDB::bind_method(D_METHOD("set_travel_cost", "travel_cost"), &NavigationRegion3D::set_travel_cost);
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ClassDB::bind_method(D_METHOD("get_travel_cost"), &NavigationRegion3D::get_travel_cost);
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ClassDB::bind_method(D_METHOD("bake_navigation_mesh", "on_thread"), &NavigationRegion3D::bake_navigation_mesh, DEFVAL(true));
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ClassDB::bind_method(D_METHOD("_bake_finished", "nav_mesh"), &NavigationRegion3D::_bake_finished);
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "navmesh", PROPERTY_HINT_RESOURCE_TYPE, "NavigationMesh"), "set_navigation_mesh", "get_navigation_mesh");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "enabled"), "set_enabled", "is_enabled");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "layers", PROPERTY_HINT_LAYERS_3D_NAVIGATION), "set_layers", "get_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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ADD_SIGNAL(MethodInfo("navigation_mesh_changed"));
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ADD_SIGNAL(MethodInfo("bake_finished"));
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}
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void NavigationRegion3D::_navigation_changed() {
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update_gizmos();
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update_configuration_warnings();
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}
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NavigationRegion3D::NavigationRegion3D() {
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set_notify_transform(true);
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region = NavigationServer3D::get_singleton()->region_create();
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NavigationServer3D::get_singleton()->region_set_enter_cost(region, get_enter_cost());
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NavigationServer3D::get_singleton()->region_set_travel_cost(region, get_travel_cost());
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}
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NavigationRegion3D::~NavigationRegion3D() {
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if (navmesh.is_valid()) {
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navmesh->disconnect("changed", callable_mp(this, &NavigationRegion3D::_navigation_changed));
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}
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NavigationServer3D::get_singleton()->free(region);
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}
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