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-rw-r--r--scene/3d/navigation_region.cpp258
1 files changed, 258 insertions, 0 deletions
diff --git a/scene/3d/navigation_region.cpp b/scene/3d/navigation_region.cpp
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index 0000000000..53b707a29a
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+++ b/scene/3d/navigation_region.cpp
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+/*************************************************************************/
+/* navigation_region.cpp */
+/*************************************************************************/
+/* This file is part of: */
+/* GODOT ENGINE */
+/* https://godotengine.org */
+/*************************************************************************/
+/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
+/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
+/* */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the */
+/* "Software"), to deal in the Software without restriction, including */
+/* without limitation the rights to use, copy, modify, merge, publish, */
+/* distribute, sublicense, and/or sell copies of the Software, and to */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions: */
+/* */
+/* The above copyright notice and this permission notice shall be */
+/* included in all copies or substantial portions of the Software. */
+/* */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
+/*************************************************************************/
+
+#include "navigation_region.h"
+#include "core/os/thread.h"
+#include "mesh_instance.h"
+#include "navigation.h"
+#include "servers/navigation_server.h"
+
+void NavigationRegion::set_enabled(bool p_enabled) {
+
+ if (enabled == p_enabled)
+ return;
+ enabled = p_enabled;
+
+ if (!is_inside_tree())
+ return;
+
+ if (!enabled) {
+
+ NavigationServer::get_singleton()->region_set_map(region, RID());
+ } else {
+
+ if (navigation) {
+
+ NavigationServer::get_singleton()->region_set_map(region, navigation->get_rid());
+ }
+ }
+
+ if (debug_view) {
+ MeshInstance *dm = Object::cast_to<MeshInstance>(debug_view);
+ if (is_enabled()) {
+ dm->set_material_override(get_tree()->get_debug_navigation_material());
+ } else {
+ dm->set_material_override(get_tree()->get_debug_navigation_disabled_material());
+ }
+ }
+
+ update_gizmo();
+}
+
+bool NavigationRegion::is_enabled() const {
+
+ return enabled;
+}
+
+/////////////////////////////
+
+void NavigationRegion::_notification(int p_what) {
+
+ switch (p_what) {
+ case NOTIFICATION_ENTER_TREE: {
+
+ Spatial *c = this;
+ while (c) {
+
+ navigation = Object::cast_to<Navigation>(c);
+ if (navigation) {
+
+ if (enabled) {
+
+ NavigationServer::get_singleton()->region_set_map(region, navigation->get_rid());
+ }
+ break;
+ }
+
+ c = c->get_parent_spatial();
+ }
+
+ if (navmesh.is_valid() && get_tree()->is_debugging_navigation_hint()) {
+
+ MeshInstance *dm = memnew(MeshInstance);
+ dm->set_mesh(navmesh->get_debug_mesh());
+ if (is_enabled()) {
+ dm->set_material_override(get_tree()->get_debug_navigation_material());
+ } else {
+ dm->set_material_override(get_tree()->get_debug_navigation_disabled_material());
+ }
+ add_child(dm);
+ debug_view = dm;
+ }
+
+ } break;
+ case NOTIFICATION_TRANSFORM_CHANGED: {
+
+ NavigationServer::get_singleton()->region_set_transform(region, get_global_transform());
+
+ } break;
+ case NOTIFICATION_EXIT_TREE: {
+
+ if (navigation) {
+
+ NavigationServer::get_singleton()->region_set_map(region, RID());
+ }
+
+ if (debug_view) {
+ debug_view->queue_delete();
+ debug_view = NULL;
+ }
+ navigation = NULL;
+ } break;
+ }
+}
+
+void NavigationRegion::set_navigation_mesh(const Ref<NavigationMesh> &p_navmesh) {
+
+ if (p_navmesh == navmesh)
+ return;
+
+ if (navmesh.is_valid()) {
+ navmesh->remove_change_receptor(this);
+ }
+
+ navmesh = p_navmesh;
+
+ if (navmesh.is_valid()) {
+ navmesh->add_change_receptor(this);
+ }
+
+ NavigationServer::get_singleton()->region_set_navmesh(region, p_navmesh);
+
+ if (debug_view && navmesh.is_valid()) {
+ Object::cast_to<MeshInstance>(debug_view)->set_mesh(navmesh->get_debug_mesh());
+ }
+
+ emit_signal("navigation_mesh_changed");
+
+ update_gizmo();
+ update_configuration_warning();
+}
+
+Ref<NavigationMesh> NavigationRegion::get_navigation_mesh() const {
+
+ return navmesh;
+}
+
+struct BakeThreadsArgs {
+ NavigationRegion *nav_region;
+};
+
+void _bake_navigation_mesh(void *p_user_data) {
+ BakeThreadsArgs *args = static_cast<BakeThreadsArgs *>(p_user_data);
+
+ if (args->nav_region->get_navigation_mesh().is_valid()) {
+ Ref<NavigationMesh> nav_mesh = args->nav_region->get_navigation_mesh()->duplicate();
+
+ NavigationServer::get_singleton()->region_bake_navmesh(nav_mesh, args->nav_region);
+ args->nav_region->call_deferred("_bake_finished", nav_mesh);
+ memdelete(args);
+ } else {
+
+ ERR_PRINT("Can't bake the navigation mesh if the `NavigationMesh` resource doesn't exist");
+ args->nav_region->call_deferred("_bake_finished", Ref<NavigationMesh>());
+ memdelete(args);
+ }
+}
+
+void NavigationRegion::bake_navigation_mesh() {
+ ERR_FAIL_COND(bake_thread != NULL);
+
+ BakeThreadsArgs *args = memnew(BakeThreadsArgs);
+ args->nav_region = this;
+
+ bake_thread = Thread::create(_bake_navigation_mesh, args);
+ ERR_FAIL_COND(bake_thread == NULL);
+}
+
+void NavigationRegion::_bake_finished(Ref<NavigationMesh> p_nav_mesh) {
+ set_navigation_mesh(p_nav_mesh);
+ bake_thread = NULL;
+}
+
+String NavigationRegion::get_configuration_warning() const {
+
+ if (!is_visible_in_tree() || !is_inside_tree())
+ return String();
+
+ if (!navmesh.is_valid()) {
+ return TTR("A NavigationMesh resource must be set or created for this node to work.");
+ }
+ const Spatial *c = this;
+ while (c) {
+
+ if (Object::cast_to<Navigation>(c))
+ return String();
+
+ c = Object::cast_to<Spatial>(c->get_parent());
+ }
+
+ return TTR("NavigationRegion must be a child or grandchild to a Navigation node. It only provides navigation data.");
+}
+
+void NavigationRegion::_bind_methods() {
+
+ ClassDB::bind_method(D_METHOD("set_navigation_mesh", "navmesh"), &NavigationRegion::set_navigation_mesh);
+ ClassDB::bind_method(D_METHOD("get_navigation_mesh"), &NavigationRegion::get_navigation_mesh);
+
+ ClassDB::bind_method(D_METHOD("set_enabled", "enabled"), &NavigationRegion::set_enabled);
+ ClassDB::bind_method(D_METHOD("is_enabled"), &NavigationRegion::is_enabled);
+
+ ClassDB::bind_method(D_METHOD("bake_navigation_mesh"), &NavigationRegion::bake_navigation_mesh);
+ ClassDB::bind_method(D_METHOD("_bake_finished", "nav_mesh"), &NavigationRegion::_bake_finished);
+
+ ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "navmesh", PROPERTY_HINT_RESOURCE_TYPE, "NavigationMesh"), "set_navigation_mesh", "get_navigation_mesh");
+ ADD_PROPERTY(PropertyInfo(Variant::BOOL, "enabled"), "set_enabled", "is_enabled");
+
+ ADD_SIGNAL(MethodInfo("navigation_mesh_changed"));
+ ADD_SIGNAL(MethodInfo("bake_finished"));
+}
+
+void NavigationRegion::_changed_callback(Object *p_changed, const char *p_prop) {
+ update_gizmo();
+ update_configuration_warning();
+}
+
+NavigationRegion::NavigationRegion() {
+
+ enabled = true;
+ set_notify_transform(true);
+ region = NavigationServer::get_singleton()->region_create();
+
+ navigation = NULL;
+ debug_view = NULL;
+ bake_thread = NULL;
+}
+
+NavigationRegion::~NavigationRegion() {
+ if (navmesh.is_valid())
+ navmesh->remove_change_receptor(this);
+ NavigationServer::get_singleton()->free(region);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 23:22:49 +0000