e6be3f68da
- Added Navigation Agents and Obstacles. - Integrated Collision Avoidance. This work has been kindly sponsored by IMVU.
259 lines
8.1 KiB
C++
259 lines
8.1 KiB
C++
/*************************************************************************/
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/* navigation_mesh.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) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 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_mesh_instance.h"
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#include "core/os/thread.h"
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#include "mesh_instance.h"
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#include "navigation.h"
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#include "servers/navigation_server.h"
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void NavigationMeshInstance::set_enabled(bool p_enabled) {
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if (enabled == p_enabled)
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return;
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enabled = p_enabled;
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if (!is_inside_tree())
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return;
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if (!enabled) {
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NavigationServer::get_singleton()->region_set_map(region, RID());
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} else {
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if (navigation) {
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NavigationServer::get_singleton()->region_set_map(region, navigation->get_rid());
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}
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}
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if (debug_view) {
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MeshInstance *dm = Object::cast_to<MeshInstance>(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_gizmo();
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}
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bool NavigationMeshInstance::is_enabled() const {
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return enabled;
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}
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/////////////////////////////
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void NavigationMeshInstance::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_ENTER_TREE: {
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Spatial *c = this;
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while (c) {
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navigation = Object::cast_to<Navigation>(c);
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if (navigation) {
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if (enabled) {
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NavigationServer::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 = c->get_parent_spatial();
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}
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if (navmesh.is_valid() && get_tree()->is_debugging_navigation_hint()) {
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MeshInstance *dm = memnew(MeshInstance);
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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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NavigationServer::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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NavigationServer::get_singleton()->region_set_map(region, RID());
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}
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if (debug_view) {
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debug_view->queue_delete();
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debug_view = NULL;
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}
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navigation = NULL;
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} break;
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}
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}
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void NavigationMeshInstance::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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if (navmesh.is_valid()) {
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navmesh->remove_change_receptor(this);
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}
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navmesh = p_navmesh;
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if (navmesh.is_valid()) {
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navmesh->add_change_receptor(this);
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}
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NavigationServer::get_singleton()->region_set_navmesh(region, p_navmesh);
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if (debug_view && navmesh.is_valid()) {
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Object::cast_to<MeshInstance>(debug_view)->set_mesh(navmesh->get_debug_mesh());
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}
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emit_signal("navigation_mesh_changed");
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update_gizmo();
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update_configuration_warning();
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}
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Ref<NavigationMesh> NavigationMeshInstance::get_navigation_mesh() const {
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return navmesh;
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}
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struct BakeThreadsArgs {
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NavigationMeshInstance *nav_mesh_instance;
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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_mesh_instance->get_navigation_mesh().is_valid()) {
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Ref<NavigationMesh> nav_mesh = args->nav_mesh_instance->get_navigation_mesh()->duplicate();
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NavigationServer::get_singleton()->region_bake_navmesh(nav_mesh, args->nav_mesh_instance);
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args->nav_mesh_instance->call_deferred("_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_mesh_instance->call_deferred("_bake_finished", Ref<NavigationMesh>());
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memdelete(args);
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}
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}
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void NavigationMeshInstance::bake_navigation_mesh() {
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ERR_FAIL_COND(bake_thread != NULL);
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BakeThreadsArgs *args = memnew(BakeThreadsArgs);
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args->nav_mesh_instance = this;
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bake_thread = Thread::create(_bake_navigation_mesh, args);
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ERR_FAIL_COND(bake_thread == NULL);
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}
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void NavigationMeshInstance::_bake_finished(Ref<NavigationMesh> p_nav_mesh) {
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set_navigation_mesh(p_nav_mesh);
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bake_thread = NULL;
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}
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String NavigationMeshInstance::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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if (!navmesh.is_valid()) {
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return TTR("A NavigationMesh resource must be set or created for this node to work.");
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}
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const Spatial *c = this;
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while (c) {
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if (Object::cast_to<Navigation>(c))
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return String();
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c = Object::cast_to<Spatial>(c->get_parent());
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}
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return TTR("NavigationMeshInstance must be a child or grandchild to a Navigation node. It only provides navigation data.");
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}
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void NavigationMeshInstance::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_navigation_mesh", "navmesh"), &NavigationMeshInstance::set_navigation_mesh);
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ClassDB::bind_method(D_METHOD("get_navigation_mesh"), &NavigationMeshInstance::get_navigation_mesh);
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ClassDB::bind_method(D_METHOD("set_enabled", "enabled"), &NavigationMeshInstance::set_enabled);
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ClassDB::bind_method(D_METHOD("is_enabled"), &NavigationMeshInstance::is_enabled);
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ClassDB::bind_method(D_METHOD("bake_navigation_mesh"), &NavigationMeshInstance::bake_navigation_mesh);
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ClassDB::bind_method(D_METHOD("_bake_finished", "nav_mesh"), &NavigationMeshInstance::_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_SIGNAL(MethodInfo("navigation_mesh_changed"));
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ADD_SIGNAL(MethodInfo("bake_finished"));
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}
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void NavigationMeshInstance::_changed_callback(Object *p_changed, const char *p_prop) {
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update_gizmo();
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update_configuration_warning();
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}
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NavigationMeshInstance::NavigationMeshInstance() {
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enabled = true;
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set_notify_transform(true);
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region = NavigationServer::get_singleton()->region_create();
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navigation = NULL;
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debug_view = NULL;
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bake_thread = NULL;
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}
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NavigationMeshInstance::~NavigationMeshInstance() {
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if (navmesh.is_valid())
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navmesh->remove_change_receptor(this);
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NavigationServer::get_singleton()->free(region);
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}
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