diff options
Diffstat (limited to 'scene/3d/navigation_region.cpp')
| -rw-r--r-- | scene/3d/navigation_region.cpp | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/scene/3d/navigation_region.cpp b/scene/3d/navigation_region.cpp new file mode 100644 index 0000000000..d96d095797 --- /dev/null +++ b/scene/3d/navigation_region.cpp @@ -0,0 +1,258 @@ +/*************************************************************************/ +/* 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_mesh_instance; +}; + +void _bake_navigation_mesh(void *p_user_data) { + BakeThreadsArgs *args = static_cast<BakeThreadsArgs *>(p_user_data); + + if (args->nav_mesh_instance->get_navigation_mesh().is_valid()) { + Ref<NavigationMesh> nav_mesh = args->nav_mesh_instance->get_navigation_mesh()->duplicate(); + + NavigationServer::get_singleton()->region_bake_navmesh(nav_mesh, args->nav_mesh_instance); + args->nav_mesh_instance->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_mesh_instance->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_mesh_instance = 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); +} |