/*************************************************************************/ /* navigation_region_3d.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2022 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_3d.h" #include "mesh_instance_3d.h" #include "servers/navigation_server_3d.h" void NavigationRegion3D::set_enabled(bool p_enabled) { if (enabled == p_enabled) { return; } enabled = p_enabled; if (!is_inside_tree()) { return; } if (!enabled) { NavigationServer3D::get_singleton()->region_set_map(region, RID()); } else { NavigationServer3D::get_singleton()->region_set_map(region, get_world_3d()->get_navigation_map()); } if (debug_view) { MeshInstance3D *dm = Object::cast_to<MeshInstance3D>(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_gizmos(); } bool NavigationRegion3D::is_enabled() const { return enabled; } void NavigationRegion3D::set_navigation_layers(uint32_t p_navigation_layers) { NavigationServer3D::get_singleton()->region_set_navigation_layers(region, p_navigation_layers); } uint32_t NavigationRegion3D::get_navigation_layers() const { return NavigationServer3D::get_singleton()->region_get_navigation_layers(region); } void NavigationRegion3D::set_navigation_layer_value(int p_layer_number, bool p_value) { ERR_FAIL_COND_MSG(p_layer_number < 1, "Navigation layer number must be between 1 and 32 inclusive."); ERR_FAIL_COND_MSG(p_layer_number > 32, "Navigation layer number must be between 1 and 32 inclusive."); uint32_t _navigation_layers = get_navigation_layers(); if (p_value) { _navigation_layers |= 1 << (p_layer_number - 1); } else { _navigation_layers &= ~(1 << (p_layer_number - 1)); } set_navigation_layers(_navigation_layers); } bool NavigationRegion3D::get_navigation_layer_value(int p_layer_number) const { ERR_FAIL_COND_V_MSG(p_layer_number < 1, false, "Navigation layer number must be between 1 and 32 inclusive."); ERR_FAIL_COND_V_MSG(p_layer_number > 32, false, "Navigation layer number must be between 1 and 32 inclusive."); return get_navigation_layers() & (1 << (p_layer_number - 1)); } void NavigationRegion3D::set_enter_cost(real_t p_enter_cost) { ERR_FAIL_COND_MSG(p_enter_cost < 0.0, "The enter_cost must be positive."); enter_cost = MAX(p_enter_cost, 0.0); NavigationServer3D::get_singleton()->region_set_enter_cost(region, p_enter_cost); } real_t NavigationRegion3D::get_enter_cost() const { return enter_cost; } void NavigationRegion3D::set_travel_cost(real_t p_travel_cost) { ERR_FAIL_COND_MSG(p_travel_cost < 0.0, "The travel_cost must be positive."); travel_cost = MAX(p_travel_cost, 0.0); NavigationServer3D::get_singleton()->region_set_enter_cost(region, travel_cost); } real_t NavigationRegion3D::get_travel_cost() const { return travel_cost; } RID NavigationRegion3D::get_region_rid() const { return region; } ///////////////////////////// void NavigationRegion3D::_notification(int p_what) { switch (p_what) { case NOTIFICATION_ENTER_TREE: { if (enabled) { NavigationServer3D::get_singleton()->region_set_map(region, get_world_3d()->get_navigation_map()); } if (navmesh.is_valid() && get_tree()->is_debugging_navigation_hint()) { MeshInstance3D *dm = memnew(MeshInstance3D); 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: { NavigationServer3D::get_singleton()->region_set_transform(region, get_global_transform()); } break; case NOTIFICATION_EXIT_TREE: { NavigationServer3D::get_singleton()->region_set_map(region, RID()); if (debug_view) { debug_view->queue_delete(); debug_view = nullptr; } } break; } } void NavigationRegion3D::set_navigation_mesh(const Ref<NavigationMesh> &p_navmesh) { if (p_navmesh == navmesh) { return; } if (navmesh.is_valid()) { navmesh->disconnect("changed", callable_mp(this, &NavigationRegion3D::_navigation_changed)); } navmesh = p_navmesh; if (navmesh.is_valid()) { navmesh->connect("changed", callable_mp(this, &NavigationRegion3D::_navigation_changed)); } NavigationServer3D::get_singleton()->region_set_navmesh(region, p_navmesh); if (debug_view == nullptr && is_inside_tree() && navmesh.is_valid() && get_tree()->is_debugging_navigation_hint()) { MeshInstance3D *dm = memnew(MeshInstance3D); 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; } if (debug_view && navmesh.is_valid()) { Object::cast_to<MeshInstance3D>(debug_view)->set_mesh(navmesh->get_debug_mesh()); } emit_signal(SNAME("navigation_mesh_changed")); update_gizmos(); update_configuration_warnings(); } Ref<NavigationMesh> NavigationRegion3D::get_navigation_mesh() const { return navmesh; } struct BakeThreadsArgs { NavigationRegion3D *nav_region = nullptr; }; 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(); NavigationServer3D::get_singleton()->region_bake_navmesh(nav_mesh, args->nav_region); args->nav_region->call_deferred(SNAME("_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(SNAME("_bake_finished"), Ref<NavigationMesh>()); memdelete(args); } } void NavigationRegion3D::bake_navigation_mesh(bool p_on_thread) { 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."); BakeThreadsArgs *args = memnew(BakeThreadsArgs); args->nav_region = this; if (p_on_thread && !OS::get_singleton()->can_use_threads()) { WARN_PRINT("NavigationMesh bake 'on_thread' will be disabled as the current OS does not support multiple threads." "\nAs a fallback the navigation mesh will bake on the main thread which can cause framerate issues."); } if (p_on_thread && OS::get_singleton()->can_use_threads()) { bake_thread.start(_bake_navigation_mesh, args); } else { _bake_navigation_mesh(args); } } void NavigationRegion3D::_bake_finished(Ref<NavigationMesh> p_nav_mesh) { set_navigation_mesh(p_nav_mesh); bake_thread.wait_to_finish(); emit_signal(SNAME("bake_finished")); } TypedArray<String> NavigationRegion3D::get_configuration_warnings() const { TypedArray<String> warnings = Node::get_configuration_warnings(); if (is_visible_in_tree() && is_inside_tree()) { if (!navmesh.is_valid()) { warnings.push_back(RTR("A NavigationMesh resource must be set or created for this node to work.")); } } return warnings; } void NavigationRegion3D::_bind_methods() { ClassDB::bind_method(D_METHOD("set_navigation_mesh", "navmesh"), &NavigationRegion3D::set_navigation_mesh); ClassDB::bind_method(D_METHOD("get_navigation_mesh"), &NavigationRegion3D::get_navigation_mesh); ClassDB::bind_method(D_METHOD("set_enabled", "enabled"), &NavigationRegion3D::set_enabled); ClassDB::bind_method(D_METHOD("is_enabled"), &NavigationRegion3D::is_enabled); ClassDB::bind_method(D_METHOD("set_navigation_layers", "navigation_layers"), &NavigationRegion3D::set_navigation_layers); ClassDB::bind_method(D_METHOD("get_navigation_layers"), &NavigationRegion3D::get_navigation_layers); ClassDB::bind_method(D_METHOD("set_navigation_layer_value", "layer_number", "value"), &NavigationRegion3D::set_navigation_layer_value); ClassDB::bind_method(D_METHOD("get_navigation_layer_value", "layer_number"), &NavigationRegion3D::get_navigation_layer_value); ClassDB::bind_method(D_METHOD("get_region_rid"), &NavigationRegion3D::get_region_rid); ClassDB::bind_method(D_METHOD("set_enter_cost", "enter_cost"), &NavigationRegion3D::set_enter_cost); ClassDB::bind_method(D_METHOD("get_enter_cost"), &NavigationRegion3D::get_enter_cost); ClassDB::bind_method(D_METHOD("set_travel_cost", "travel_cost"), &NavigationRegion3D::set_travel_cost); ClassDB::bind_method(D_METHOD("get_travel_cost"), &NavigationRegion3D::get_travel_cost); ClassDB::bind_method(D_METHOD("bake_navigation_mesh", "on_thread"), &NavigationRegion3D::bake_navigation_mesh, DEFVAL(true)); ClassDB::bind_method(D_METHOD("_bake_finished", "nav_mesh"), &NavigationRegion3D::_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_PROPERTY(PropertyInfo(Variant::INT, "navigation_layers", PROPERTY_HINT_LAYERS_3D_NAVIGATION), "set_navigation_layers", "get_navigation_layers"); ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "enter_cost"), "set_enter_cost", "get_enter_cost"); ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "travel_cost"), "set_travel_cost", "get_travel_cost"); ADD_SIGNAL(MethodInfo("navigation_mesh_changed")); ADD_SIGNAL(MethodInfo("bake_finished")); } void NavigationRegion3D::_navigation_changed() { update_gizmos(); update_configuration_warnings(); } NavigationRegion3D::NavigationRegion3D() { set_notify_transform(true); region = NavigationServer3D::get_singleton()->region_create(); NavigationServer3D::get_singleton()->region_set_enter_cost(region, get_enter_cost()); NavigationServer3D::get_singleton()->region_set_travel_cost(region, get_travel_cost()); } NavigationRegion3D::~NavigationRegion3D() { if (navmesh.is_valid()) { navmesh->disconnect("changed", callable_mp(this, &NavigationRegion3D::_navigation_changed)); } NavigationServer3D::get_singleton()->free(region); }