829 lines
35 KiB
C++
829 lines
35 KiB
C++
/**************************************************************************/
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/* nav_mesh_generator_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) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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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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#ifndef _3D_DISABLED
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#include "nav_mesh_generator_3d.h"
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#include "core/config/project_settings.h"
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#include "core/math/convex_hull.h"
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#include "core/os/thread.h"
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#include "scene/3d/mesh_instance_3d.h"
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#include "scene/3d/multimesh_instance_3d.h"
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#include "scene/3d/physics_body_3d.h"
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#include "scene/resources/box_shape_3d.h"
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#include "scene/resources/capsule_shape_3d.h"
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#include "scene/resources/concave_polygon_shape_3d.h"
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#include "scene/resources/convex_polygon_shape_3d.h"
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#include "scene/resources/cylinder_shape_3d.h"
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#include "scene/resources/height_map_shape_3d.h"
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#include "scene/resources/navigation_mesh.h"
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#include "scene/resources/navigation_mesh_source_geometry_data_3d.h"
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#include "scene/resources/primitive_meshes.h"
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#include "scene/resources/shape_3d.h"
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#include "scene/resources/sphere_shape_3d.h"
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#include "scene/resources/world_boundary_shape_3d.h"
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#include "modules/modules_enabled.gen.h" // For csg, gridmap.
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#ifdef MODULE_CSG_ENABLED
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#include "modules/csg/csg_shape.h"
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#endif
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#ifdef MODULE_GRIDMAP_ENABLED
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#include "modules/gridmap/grid_map.h"
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#endif
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#include <Recast.h>
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NavMeshGenerator3D *NavMeshGenerator3D::singleton = nullptr;
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Mutex NavMeshGenerator3D::baking_navmesh_mutex;
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Mutex NavMeshGenerator3D::generator_task_mutex;
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bool NavMeshGenerator3D::use_threads = true;
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bool NavMeshGenerator3D::baking_use_multiple_threads = true;
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bool NavMeshGenerator3D::baking_use_high_priority_threads = true;
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HashSet<Ref<NavigationMesh>> NavMeshGenerator3D::baking_navmeshes;
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HashMap<WorkerThreadPool::TaskID, NavMeshGenerator3D::NavMeshGeneratorTask3D *> NavMeshGenerator3D::generator_tasks;
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NavMeshGenerator3D *NavMeshGenerator3D::get_singleton() {
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return singleton;
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}
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NavMeshGenerator3D::NavMeshGenerator3D() {
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ERR_FAIL_COND(singleton != nullptr);
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singleton = this;
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baking_use_multiple_threads = GLOBAL_GET("navigation/baking/thread_model/baking_use_multiple_threads");
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baking_use_high_priority_threads = GLOBAL_GET("navigation/baking/thread_model/baking_use_high_priority_threads");
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// Using threads might cause problems on certain exports or with the Editor on certain devices.
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// This is the main switch to turn threaded navmesh baking off should the need arise.
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use_threads = baking_use_multiple_threads && !Engine::get_singleton()->is_editor_hint();
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}
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NavMeshGenerator3D::~NavMeshGenerator3D() {
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cleanup();
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}
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void NavMeshGenerator3D::sync() {
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if (generator_tasks.size() == 0) {
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return;
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}
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baking_navmesh_mutex.lock();
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generator_task_mutex.lock();
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LocalVector<WorkerThreadPool::TaskID> finished_task_ids;
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for (KeyValue<WorkerThreadPool::TaskID, NavMeshGeneratorTask3D *> &E : generator_tasks) {
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if (WorkerThreadPool::get_singleton()->is_task_completed(E.key)) {
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WorkerThreadPool::get_singleton()->wait_for_task_completion(E.key);
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finished_task_ids.push_back(E.key);
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NavMeshGeneratorTask3D *generator_task = E.value;
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DEV_ASSERT(generator_task->status == NavMeshGeneratorTask3D::TaskStatus::BAKING_FINISHED);
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baking_navmeshes.erase(generator_task->navigation_mesh);
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if (generator_task->callback.is_valid()) {
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generator_emit_callback(generator_task->callback);
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}
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memdelete(generator_task);
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}
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}
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for (WorkerThreadPool::TaskID finished_task_id : finished_task_ids) {
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generator_tasks.erase(finished_task_id);
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}
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generator_task_mutex.unlock();
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baking_navmesh_mutex.unlock();
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}
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void NavMeshGenerator3D::cleanup() {
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baking_navmesh_mutex.lock();
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generator_task_mutex.lock();
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baking_navmeshes.clear();
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for (KeyValue<WorkerThreadPool::TaskID, NavMeshGeneratorTask3D *> &E : generator_tasks) {
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WorkerThreadPool::get_singleton()->wait_for_task_completion(E.key);
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NavMeshGeneratorTask3D *generator_task = E.value;
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memdelete(generator_task);
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}
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generator_tasks.clear();
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generator_task_mutex.unlock();
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baking_navmesh_mutex.unlock();
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}
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void NavMeshGenerator3D::finish() {
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cleanup();
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}
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void NavMeshGenerator3D::parse_source_geometry_data(Ref<NavigationMesh> p_navigation_mesh, Ref<NavigationMeshSourceGeometryData3D> p_source_geometry_data, Node *p_root_node, const Callable &p_callback) {
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ERR_FAIL_COND(!Thread::is_main_thread());
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ERR_FAIL_COND(!p_navigation_mesh.is_valid());
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ERR_FAIL_NULL(p_root_node);
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ERR_FAIL_COND(!p_root_node->is_inside_tree());
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ERR_FAIL_COND(!p_source_geometry_data.is_valid());
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generator_parse_source_geometry_data(p_navigation_mesh, p_source_geometry_data, p_root_node);
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if (p_callback.is_valid()) {
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generator_emit_callback(p_callback);
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}
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}
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void NavMeshGenerator3D::bake_from_source_geometry_data(Ref<NavigationMesh> p_navigation_mesh, Ref<NavigationMeshSourceGeometryData3D> p_source_geometry_data, const Callable &p_callback) {
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ERR_FAIL_COND(!p_navigation_mesh.is_valid());
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ERR_FAIL_COND(!p_source_geometry_data.is_valid());
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if (!p_source_geometry_data->has_data()) {
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p_navigation_mesh->clear();
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if (p_callback.is_valid()) {
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generator_emit_callback(p_callback);
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}
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return;
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}
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if (is_baking(p_navigation_mesh)) {
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ERR_FAIL_MSG("NavigationMesh is already baking. Wait for current bake to finish.");
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}
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baking_navmesh_mutex.lock();
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baking_navmeshes.insert(p_navigation_mesh);
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baking_navmesh_mutex.unlock();
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generator_bake_from_source_geometry_data(p_navigation_mesh, p_source_geometry_data);
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baking_navmesh_mutex.lock();
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baking_navmeshes.erase(p_navigation_mesh);
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baking_navmesh_mutex.unlock();
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if (p_callback.is_valid()) {
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generator_emit_callback(p_callback);
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}
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}
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void NavMeshGenerator3D::bake_from_source_geometry_data_async(Ref<NavigationMesh> p_navigation_mesh, Ref<NavigationMeshSourceGeometryData3D> p_source_geometry_data, const Callable &p_callback) {
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ERR_FAIL_COND(!p_navigation_mesh.is_valid());
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ERR_FAIL_COND(!p_source_geometry_data.is_valid());
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if (!p_source_geometry_data->has_data()) {
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p_navigation_mesh->clear();
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if (p_callback.is_valid()) {
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generator_emit_callback(p_callback);
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}
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return;
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}
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if (!use_threads) {
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bake_from_source_geometry_data(p_navigation_mesh, p_source_geometry_data, p_callback);
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return;
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}
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if (is_baking(p_navigation_mesh)) {
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ERR_FAIL_MSG("NavigationMesh is already baking. Wait for current bake to finish.");
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return;
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}
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baking_navmesh_mutex.lock();
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baking_navmeshes.insert(p_navigation_mesh);
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baking_navmesh_mutex.unlock();
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generator_task_mutex.lock();
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NavMeshGeneratorTask3D *generator_task = memnew(NavMeshGeneratorTask3D);
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generator_task->navigation_mesh = p_navigation_mesh;
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generator_task->source_geometry_data = p_source_geometry_data;
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generator_task->callback = p_callback;
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generator_task->status = NavMeshGeneratorTask3D::TaskStatus::BAKING_STARTED;
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generator_task->thread_task_id = WorkerThreadPool::get_singleton()->add_native_task(&NavMeshGenerator3D::generator_thread_bake, generator_task, NavMeshGenerator3D::baking_use_high_priority_threads, SNAME("NavMeshGeneratorBake3D"));
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generator_tasks.insert(generator_task->thread_task_id, generator_task);
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generator_task_mutex.unlock();
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}
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bool NavMeshGenerator3D::is_baking(Ref<NavigationMesh> p_navigation_mesh) {
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baking_navmesh_mutex.lock();
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bool baking = baking_navmeshes.has(p_navigation_mesh);
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baking_navmesh_mutex.unlock();
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return baking;
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}
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void NavMeshGenerator3D::generator_thread_bake(void *p_arg) {
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NavMeshGeneratorTask3D *generator_task = static_cast<NavMeshGeneratorTask3D *>(p_arg);
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generator_bake_from_source_geometry_data(generator_task->navigation_mesh, generator_task->source_geometry_data);
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generator_task->status = NavMeshGeneratorTask3D::TaskStatus::BAKING_FINISHED;
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}
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void NavMeshGenerator3D::generator_parse_geometry_node(const Ref<NavigationMesh> &p_navigation_mesh, Ref<NavigationMeshSourceGeometryData3D> p_source_geometry_data, Node *p_node, bool p_recurse_children) {
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generator_parse_meshinstance3d_node(p_navigation_mesh, p_source_geometry_data, p_node);
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generator_parse_multimeshinstance3d_node(p_navigation_mesh, p_source_geometry_data, p_node);
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generator_parse_staticbody3d_node(p_navigation_mesh, p_source_geometry_data, p_node);
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#ifdef MODULE_CSG_ENABLED
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generator_parse_csgshape3d_node(p_navigation_mesh, p_source_geometry_data, p_node);
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#endif
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#ifdef MODULE_GRIDMAP_ENABLED
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generator_parse_gridmap_node(p_navigation_mesh, p_source_geometry_data, p_node);
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#endif
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if (p_recurse_children) {
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for (int i = 0; i < p_node->get_child_count(); i++) {
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generator_parse_geometry_node(p_navigation_mesh, p_source_geometry_data, p_node->get_child(i), p_recurse_children);
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}
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}
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}
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void NavMeshGenerator3D::generator_parse_meshinstance3d_node(const Ref<NavigationMesh> &p_navigation_mesh, Ref<NavigationMeshSourceGeometryData3D> p_source_geometry_data, Node *p_node) {
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MeshInstance3D *mesh_instance = Object::cast_to<MeshInstance3D>(p_node);
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if (mesh_instance) {
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NavigationMesh::ParsedGeometryType parsed_geometry_type = p_navigation_mesh->get_parsed_geometry_type();
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if (parsed_geometry_type == NavigationMesh::PARSED_GEOMETRY_MESH_INSTANCES || parsed_geometry_type == NavigationMesh::PARSED_GEOMETRY_BOTH) {
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Ref<Mesh> mesh = mesh_instance->get_mesh();
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if (mesh.is_valid()) {
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p_source_geometry_data->add_mesh(mesh, mesh_instance->get_global_transform());
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}
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}
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}
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}
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void NavMeshGenerator3D::generator_parse_multimeshinstance3d_node(const Ref<NavigationMesh> &p_navigation_mesh, Ref<NavigationMeshSourceGeometryData3D> p_source_geometry_data, Node *p_node) {
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MultiMeshInstance3D *multimesh_instance = Object::cast_to<MultiMeshInstance3D>(p_node);
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if (multimesh_instance) {
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NavigationMesh::ParsedGeometryType parsed_geometry_type = p_navigation_mesh->get_parsed_geometry_type();
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if (parsed_geometry_type == NavigationMesh::PARSED_GEOMETRY_MESH_INSTANCES || parsed_geometry_type == NavigationMesh::PARSED_GEOMETRY_BOTH) {
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Ref<MultiMesh> multimesh = multimesh_instance->get_multimesh();
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if (multimesh.is_valid()) {
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Ref<Mesh> mesh = multimesh->get_mesh();
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if (mesh.is_valid()) {
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int n = multimesh->get_visible_instance_count();
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if (n == -1) {
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n = multimesh->get_instance_count();
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}
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for (int i = 0; i < n; i++) {
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p_source_geometry_data->add_mesh(mesh, multimesh_instance->get_global_transform() * multimesh->get_instance_transform(i));
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}
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}
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}
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}
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}
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}
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void NavMeshGenerator3D::generator_parse_staticbody3d_node(const Ref<NavigationMesh> &p_navigation_mesh, Ref<NavigationMeshSourceGeometryData3D> p_source_geometry_data, Node *p_node) {
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StaticBody3D *static_body = Object::cast_to<StaticBody3D>(p_node);
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if (static_body) {
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NavigationMesh::ParsedGeometryType parsed_geometry_type = p_navigation_mesh->get_parsed_geometry_type();
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uint32_t parsed_collision_mask = p_navigation_mesh->get_collision_mask();
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if ((parsed_geometry_type == NavigationMesh::PARSED_GEOMETRY_STATIC_COLLIDERS || parsed_geometry_type == NavigationMesh::PARSED_GEOMETRY_BOTH) && (static_body->get_collision_layer() & parsed_collision_mask)) {
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List<uint32_t> shape_owners;
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static_body->get_shape_owners(&shape_owners);
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for (uint32_t shape_owner : shape_owners) {
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if (static_body->is_shape_owner_disabled(shape_owner)) {
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continue;
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}
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const int shape_count = static_body->shape_owner_get_shape_count(shape_owner);
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for (int shape_index = 0; shape_index < shape_count; shape_index++) {
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Ref<Shape3D> s = static_body->shape_owner_get_shape(shape_owner, shape_index);
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if (s.is_null()) {
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continue;
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}
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const Transform3D transform = static_body->get_global_transform() * static_body->shape_owner_get_transform(shape_owner);
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BoxShape3D *box = Object::cast_to<BoxShape3D>(*s);
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if (box) {
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Array arr;
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arr.resize(RS::ARRAY_MAX);
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BoxMesh::create_mesh_array(arr, box->get_size());
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p_source_geometry_data->add_mesh_array(arr, transform);
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}
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CapsuleShape3D *capsule = Object::cast_to<CapsuleShape3D>(*s);
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if (capsule) {
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Array arr;
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arr.resize(RS::ARRAY_MAX);
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CapsuleMesh::create_mesh_array(arr, capsule->get_radius(), capsule->get_height());
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p_source_geometry_data->add_mesh_array(arr, transform);
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}
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CylinderShape3D *cylinder = Object::cast_to<CylinderShape3D>(*s);
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if (cylinder) {
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Array arr;
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arr.resize(RS::ARRAY_MAX);
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CylinderMesh::create_mesh_array(arr, cylinder->get_radius(), cylinder->get_radius(), cylinder->get_height());
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p_source_geometry_data->add_mesh_array(arr, transform);
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}
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SphereShape3D *sphere = Object::cast_to<SphereShape3D>(*s);
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if (sphere) {
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Array arr;
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arr.resize(RS::ARRAY_MAX);
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SphereMesh::create_mesh_array(arr, sphere->get_radius(), sphere->get_radius() * 2.0);
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p_source_geometry_data->add_mesh_array(arr, transform);
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}
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ConcavePolygonShape3D *concave_polygon = Object::cast_to<ConcavePolygonShape3D>(*s);
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if (concave_polygon) {
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p_source_geometry_data->add_faces(concave_polygon->get_faces(), transform);
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}
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ConvexPolygonShape3D *convex_polygon = Object::cast_to<ConvexPolygonShape3D>(*s);
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if (convex_polygon) {
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Vector<Vector3> varr = Variant(convex_polygon->get_points());
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Geometry3D::MeshData md;
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Error err = ConvexHullComputer::convex_hull(varr, md);
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if (err == OK) {
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PackedVector3Array faces;
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for (const Geometry3D::MeshData::Face &face : md.faces) {
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for (uint32_t k = 2; k < face.indices.size(); ++k) {
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faces.push_back(md.vertices[face.indices[0]]);
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faces.push_back(md.vertices[face.indices[k - 1]]);
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faces.push_back(md.vertices[face.indices[k]]);
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}
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}
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p_source_geometry_data->add_faces(faces, transform);
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}
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}
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HeightMapShape3D *heightmap_shape = Object::cast_to<HeightMapShape3D>(*s);
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if (heightmap_shape) {
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int heightmap_depth = heightmap_shape->get_map_depth();
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int heightmap_width = heightmap_shape->get_map_width();
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if (heightmap_depth >= 2 && heightmap_width >= 2) {
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const Vector<real_t> &map_data = heightmap_shape->get_map_data();
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Vector2 heightmap_gridsize(heightmap_width - 1, heightmap_depth - 1);
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Vector3 start = Vector3(heightmap_gridsize.x, 0, heightmap_gridsize.y) * -0.5;
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Vector<Vector3> vertex_array;
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vertex_array.resize((heightmap_depth - 1) * (heightmap_width - 1) * 6);
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Vector3 *vertex_array_ptrw = vertex_array.ptrw();
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const real_t *map_data_ptr = map_data.ptr();
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int vertex_index = 0;
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for (int d = 0; d < heightmap_depth - 1; d++) {
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for (int w = 0; w < heightmap_width - 1; w++) {
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vertex_array_ptrw[vertex_index] = start + Vector3(w, map_data_ptr[(heightmap_width * d) + w], d);
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vertex_array_ptrw[vertex_index + 1] = start + Vector3(w + 1, map_data_ptr[(heightmap_width * d) + w + 1], d);
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vertex_array_ptrw[vertex_index + 2] = start + Vector3(w, map_data_ptr[(heightmap_width * d) + heightmap_width + w], d + 1);
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vertex_array_ptrw[vertex_index + 3] = start + Vector3(w + 1, map_data_ptr[(heightmap_width * d) + w + 1], d);
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vertex_array_ptrw[vertex_index + 4] = start + Vector3(w + 1, map_data_ptr[(heightmap_width * d) + heightmap_width + w + 1], d + 1);
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vertex_array_ptrw[vertex_index + 5] = start + Vector3(w, map_data_ptr[(heightmap_width * d) + heightmap_width + w], d + 1);
|
|
vertex_index += 6;
|
|
}
|
|
}
|
|
if (vertex_array.size() > 0) {
|
|
p_source_geometry_data->add_faces(vertex_array, transform);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef MODULE_CSG_ENABLED
|
|
void NavMeshGenerator3D::generator_parse_csgshape3d_node(const Ref<NavigationMesh> &p_navigation_mesh, Ref<NavigationMeshSourceGeometryData3D> p_source_geometry_data, Node *p_node) {
|
|
CSGShape3D *csgshape3d = Object::cast_to<CSGShape3D>(p_node);
|
|
|
|
if (csgshape3d) {
|
|
NavigationMesh::ParsedGeometryType parsed_geometry_type = p_navigation_mesh->get_parsed_geometry_type();
|
|
uint32_t parsed_collision_mask = p_navigation_mesh->get_collision_mask();
|
|
|
|
if (parsed_geometry_type == NavigationMesh::PARSED_GEOMETRY_MESH_INSTANCES || (parsed_geometry_type == NavigationMesh::PARSED_GEOMETRY_STATIC_COLLIDERS && csgshape3d->is_using_collision() && (csgshape3d->get_collision_layer() & parsed_collision_mask)) || parsed_geometry_type == NavigationMesh::PARSED_GEOMETRY_BOTH) {
|
|
CSGShape3D *csg_shape = Object::cast_to<CSGShape3D>(p_node);
|
|
Array meshes = csg_shape->get_meshes();
|
|
if (!meshes.is_empty()) {
|
|
Ref<Mesh> mesh = meshes[1];
|
|
if (mesh.is_valid()) {
|
|
p_source_geometry_data->add_mesh(mesh, csg_shape->get_global_transform());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif // MODULE_CSG_ENABLED
|
|
|
|
#ifdef MODULE_GRIDMAP_ENABLED
|
|
void NavMeshGenerator3D::generator_parse_gridmap_node(const Ref<NavigationMesh> &p_navigation_mesh, Ref<NavigationMeshSourceGeometryData3D> p_source_geometry_data, Node *p_node) {
|
|
GridMap *gridmap = Object::cast_to<GridMap>(p_node);
|
|
|
|
if (gridmap) {
|
|
NavigationMesh::ParsedGeometryType parsed_geometry_type = p_navigation_mesh->get_parsed_geometry_type();
|
|
uint32_t parsed_collision_mask = p_navigation_mesh->get_collision_mask();
|
|
|
|
if (parsed_geometry_type == NavigationMesh::PARSED_GEOMETRY_MESH_INSTANCES || parsed_geometry_type == NavigationMesh::PARSED_GEOMETRY_BOTH) {
|
|
Array meshes = gridmap->get_meshes();
|
|
Transform3D xform = gridmap->get_global_transform();
|
|
for (int i = 0; i < meshes.size(); i += 2) {
|
|
Ref<Mesh> mesh = meshes[i + 1];
|
|
if (mesh.is_valid()) {
|
|
p_source_geometry_data->add_mesh(mesh, xform * (Transform3D)meshes[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
else if ((parsed_geometry_type == NavigationMesh::PARSED_GEOMETRY_STATIC_COLLIDERS || parsed_geometry_type == NavigationMesh::PARSED_GEOMETRY_BOTH) && (gridmap->get_collision_layer() & parsed_collision_mask)) {
|
|
Array shapes = gridmap->get_collision_shapes();
|
|
for (int i = 0; i < shapes.size(); i += 2) {
|
|
RID shape = shapes[i + 1];
|
|
PhysicsServer3D::ShapeType type = PhysicsServer3D::get_singleton()->shape_get_type(shape);
|
|
Variant data = PhysicsServer3D::get_singleton()->shape_get_data(shape);
|
|
|
|
switch (type) {
|
|
case PhysicsServer3D::SHAPE_SPHERE: {
|
|
real_t radius = data;
|
|
Array arr;
|
|
arr.resize(RS::ARRAY_MAX);
|
|
SphereMesh::create_mesh_array(arr, radius, radius * 2.0);
|
|
p_source_geometry_data->add_mesh_array(arr, shapes[i]);
|
|
} break;
|
|
case PhysicsServer3D::SHAPE_BOX: {
|
|
Vector3 extents = data;
|
|
Array arr;
|
|
arr.resize(RS::ARRAY_MAX);
|
|
BoxMesh::create_mesh_array(arr, extents * 2.0);
|
|
p_source_geometry_data->add_mesh_array(arr, shapes[i]);
|
|
} break;
|
|
case PhysicsServer3D::SHAPE_CAPSULE: {
|
|
Dictionary dict = data;
|
|
real_t radius = dict["radius"];
|
|
real_t height = dict["height"];
|
|
Array arr;
|
|
arr.resize(RS::ARRAY_MAX);
|
|
CapsuleMesh::create_mesh_array(arr, radius, height);
|
|
p_source_geometry_data->add_mesh_array(arr, shapes[i]);
|
|
} break;
|
|
case PhysicsServer3D::SHAPE_CYLINDER: {
|
|
Dictionary dict = data;
|
|
real_t radius = dict["radius"];
|
|
real_t height = dict["height"];
|
|
Array arr;
|
|
arr.resize(RS::ARRAY_MAX);
|
|
CylinderMesh::create_mesh_array(arr, radius, radius, height);
|
|
p_source_geometry_data->add_mesh_array(arr, shapes[i]);
|
|
} break;
|
|
case PhysicsServer3D::SHAPE_CONVEX_POLYGON: {
|
|
PackedVector3Array vertices = data;
|
|
Geometry3D::MeshData md;
|
|
|
|
Error err = ConvexHullComputer::convex_hull(vertices, md);
|
|
|
|
if (err == OK) {
|
|
PackedVector3Array faces;
|
|
|
|
for (const Geometry3D::MeshData::Face &face : md.faces) {
|
|
for (uint32_t k = 2; k < face.indices.size(); ++k) {
|
|
faces.push_back(md.vertices[face.indices[0]]);
|
|
faces.push_back(md.vertices[face.indices[k - 1]]);
|
|
faces.push_back(md.vertices[face.indices[k]]);
|
|
}
|
|
}
|
|
|
|
p_source_geometry_data->add_faces(faces, shapes[i]);
|
|
}
|
|
} break;
|
|
case PhysicsServer3D::SHAPE_CONCAVE_POLYGON: {
|
|
Dictionary dict = data;
|
|
PackedVector3Array faces = Variant(dict["faces"]);
|
|
p_source_geometry_data->add_faces(faces, shapes[i]);
|
|
} break;
|
|
case PhysicsServer3D::SHAPE_HEIGHTMAP: {
|
|
Dictionary dict = data;
|
|
///< dict( int:"width", int:"depth",float:"cell_size", float_array:"heights"
|
|
int heightmap_depth = dict["depth"];
|
|
int heightmap_width = dict["width"];
|
|
|
|
if (heightmap_depth >= 2 && heightmap_width >= 2) {
|
|
const Vector<real_t> &map_data = dict["heights"];
|
|
|
|
Vector2 heightmap_gridsize(heightmap_width - 1, heightmap_depth - 1);
|
|
Vector3 start = Vector3(heightmap_gridsize.x, 0, heightmap_gridsize.y) * -0.5;
|
|
|
|
Vector<Vector3> vertex_array;
|
|
vertex_array.resize((heightmap_depth - 1) * (heightmap_width - 1) * 6);
|
|
Vector3 *vertex_array_ptrw = vertex_array.ptrw();
|
|
const real_t *map_data_ptr = map_data.ptr();
|
|
int vertex_index = 0;
|
|
|
|
for (int d = 0; d < heightmap_depth - 1; d++) {
|
|
for (int w = 0; w < heightmap_width - 1; w++) {
|
|
vertex_array_ptrw[vertex_index] = start + Vector3(w, map_data_ptr[(heightmap_width * d) + w], d);
|
|
vertex_array_ptrw[vertex_index + 1] = start + Vector3(w + 1, map_data_ptr[(heightmap_width * d) + w + 1], d);
|
|
vertex_array_ptrw[vertex_index + 2] = start + Vector3(w, map_data_ptr[(heightmap_width * d) + heightmap_width + w], d + 1);
|
|
vertex_array_ptrw[vertex_index + 3] = start + Vector3(w + 1, map_data_ptr[(heightmap_width * d) + w + 1], d);
|
|
vertex_array_ptrw[vertex_index + 4] = start + Vector3(w + 1, map_data_ptr[(heightmap_width * d) + heightmap_width + w + 1], d + 1);
|
|
vertex_array_ptrw[vertex_index + 5] = start + Vector3(w, map_data_ptr[(heightmap_width * d) + heightmap_width + w], d + 1);
|
|
vertex_index += 6;
|
|
}
|
|
}
|
|
if (vertex_array.size() > 0) {
|
|
p_source_geometry_data->add_faces(vertex_array, shapes[i]);
|
|
}
|
|
}
|
|
} break;
|
|
default: {
|
|
WARN_PRINT("Unsupported collision shape type.");
|
|
} break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif // MODULE_GRIDMAP_ENABLED
|
|
|
|
void NavMeshGenerator3D::generator_parse_source_geometry_data(const Ref<NavigationMesh> &p_navigation_mesh, Ref<NavigationMeshSourceGeometryData3D> p_source_geometry_data, Node *p_root_node) {
|
|
List<Node *> parse_nodes;
|
|
|
|
if (p_navigation_mesh->get_source_geometry_mode() == NavigationMesh::SOURCE_GEOMETRY_ROOT_NODE_CHILDREN) {
|
|
parse_nodes.push_back(p_root_node);
|
|
} else {
|
|
p_root_node->get_tree()->get_nodes_in_group(p_navigation_mesh->get_source_group_name(), &parse_nodes);
|
|
}
|
|
|
|
Transform3D root_node_transform = Transform3D();
|
|
if (Object::cast_to<Node3D>(p_root_node)) {
|
|
root_node_transform = Object::cast_to<Node3D>(p_root_node)->get_global_transform().affine_inverse();
|
|
}
|
|
|
|
p_source_geometry_data->clear();
|
|
p_source_geometry_data->root_node_transform = root_node_transform;
|
|
|
|
bool recurse_children = p_navigation_mesh->get_source_geometry_mode() != NavigationMesh::SOURCE_GEOMETRY_GROUPS_EXPLICIT;
|
|
|
|
for (Node *parse_node : parse_nodes) {
|
|
generator_parse_geometry_node(p_navigation_mesh, p_source_geometry_data, parse_node, recurse_children);
|
|
}
|
|
};
|
|
|
|
void NavMeshGenerator3D::generator_bake_from_source_geometry_data(Ref<NavigationMesh> p_navigation_mesh, const Ref<NavigationMeshSourceGeometryData3D> &p_source_geometry_data) {
|
|
if (p_navigation_mesh.is_null() || p_source_geometry_data.is_null()) {
|
|
return;
|
|
}
|
|
|
|
const Vector<float> &vertices = p_source_geometry_data->get_vertices();
|
|
const Vector<int> &indices = p_source_geometry_data->get_indices();
|
|
|
|
if (vertices.size() < 3 || indices.size() < 3) {
|
|
return;
|
|
}
|
|
|
|
rcHeightfield *hf = nullptr;
|
|
rcCompactHeightfield *chf = nullptr;
|
|
rcContourSet *cset = nullptr;
|
|
rcPolyMesh *poly_mesh = nullptr;
|
|
rcPolyMeshDetail *detail_mesh = nullptr;
|
|
rcContext ctx;
|
|
|
|
// added to keep track of steps, no functionality right now
|
|
String bake_state = "";
|
|
|
|
bake_state = "Setting up Configuration..."; // step #1
|
|
|
|
const float *verts = vertices.ptr();
|
|
const int nverts = vertices.size() / 3;
|
|
const int *tris = indices.ptr();
|
|
const int ntris = indices.size() / 3;
|
|
|
|
float bmin[3], bmax[3];
|
|
rcCalcBounds(verts, nverts, bmin, bmax);
|
|
|
|
rcConfig cfg;
|
|
memset(&cfg, 0, sizeof(cfg));
|
|
|
|
cfg.cs = p_navigation_mesh->get_cell_size();
|
|
cfg.ch = p_navigation_mesh->get_cell_height();
|
|
if (p_navigation_mesh->get_border_size() > 0.0) {
|
|
cfg.borderSize = (int)Math::ceil(p_navigation_mesh->get_border_size() / cfg.cs);
|
|
}
|
|
cfg.walkableSlopeAngle = p_navigation_mesh->get_agent_max_slope();
|
|
cfg.walkableHeight = (int)Math::ceil(p_navigation_mesh->get_agent_height() / cfg.ch);
|
|
cfg.walkableClimb = (int)Math::floor(p_navigation_mesh->get_agent_max_climb() / cfg.ch);
|
|
cfg.walkableRadius = (int)Math::ceil(p_navigation_mesh->get_agent_radius() / cfg.cs);
|
|
cfg.maxEdgeLen = (int)(p_navigation_mesh->get_edge_max_length() / p_navigation_mesh->get_cell_size());
|
|
cfg.maxSimplificationError = p_navigation_mesh->get_edge_max_error();
|
|
cfg.minRegionArea = (int)(p_navigation_mesh->get_region_min_size() * p_navigation_mesh->get_region_min_size());
|
|
cfg.mergeRegionArea = (int)(p_navigation_mesh->get_region_merge_size() * p_navigation_mesh->get_region_merge_size());
|
|
cfg.maxVertsPerPoly = (int)p_navigation_mesh->get_vertices_per_polygon();
|
|
cfg.detailSampleDist = MAX(p_navigation_mesh->get_cell_size() * p_navigation_mesh->get_detail_sample_distance(), 0.1f);
|
|
cfg.detailSampleMaxError = p_navigation_mesh->get_cell_height() * p_navigation_mesh->get_detail_sample_max_error();
|
|
|
|
if (p_navigation_mesh->get_border_size() > 0.0 && !Math::is_equal_approx(p_navigation_mesh->get_cell_size(), p_navigation_mesh->get_border_size())) {
|
|
WARN_PRINT("Property border_size is ceiled to cell_size voxel units and loses precision.");
|
|
}
|
|
if (!Math::is_equal_approx((float)cfg.walkableHeight * cfg.ch, p_navigation_mesh->get_agent_height())) {
|
|
WARN_PRINT("Property agent_height is ceiled to cell_height voxel units and loses precision.");
|
|
}
|
|
if (!Math::is_equal_approx((float)cfg.walkableClimb * cfg.ch, p_navigation_mesh->get_agent_max_climb())) {
|
|
WARN_PRINT("Property agent_max_climb is floored to cell_height voxel units and loses precision.");
|
|
}
|
|
if (!Math::is_equal_approx((float)cfg.walkableRadius * cfg.cs, p_navigation_mesh->get_agent_radius())) {
|
|
WARN_PRINT("Property agent_radius is ceiled to cell_size voxel units and loses precision.");
|
|
}
|
|
if (!Math::is_equal_approx((float)cfg.maxEdgeLen * cfg.cs, p_navigation_mesh->get_edge_max_length())) {
|
|
WARN_PRINT("Property edge_max_length is rounded to cell_size voxel units and loses precision.");
|
|
}
|
|
if (!Math::is_equal_approx((float)cfg.minRegionArea, p_navigation_mesh->get_region_min_size() * p_navigation_mesh->get_region_min_size())) {
|
|
WARN_PRINT("Property region_min_size is converted to int and loses precision.");
|
|
}
|
|
if (!Math::is_equal_approx((float)cfg.mergeRegionArea, p_navigation_mesh->get_region_merge_size() * p_navigation_mesh->get_region_merge_size())) {
|
|
WARN_PRINT("Property region_merge_size is converted to int and loses precision.");
|
|
}
|
|
if (!Math::is_equal_approx((float)cfg.maxVertsPerPoly, p_navigation_mesh->get_vertices_per_polygon())) {
|
|
WARN_PRINT("Property vertices_per_polygon is converted to int and loses precision.");
|
|
}
|
|
if (p_navigation_mesh->get_cell_size() * p_navigation_mesh->get_detail_sample_distance() < 0.1f) {
|
|
WARN_PRINT("Property detail_sample_distance is clamped to 0.1 world units as the resulting value from multiplying with cell_size is too low.");
|
|
}
|
|
|
|
cfg.bmin[0] = bmin[0];
|
|
cfg.bmin[1] = bmin[1];
|
|
cfg.bmin[2] = bmin[2];
|
|
cfg.bmax[0] = bmax[0];
|
|
cfg.bmax[1] = bmax[1];
|
|
cfg.bmax[2] = bmax[2];
|
|
|
|
AABB baking_aabb = p_navigation_mesh->get_filter_baking_aabb();
|
|
if (baking_aabb.has_volume()) {
|
|
Vector3 baking_aabb_offset = p_navigation_mesh->get_filter_baking_aabb_offset();
|
|
cfg.bmin[0] = baking_aabb.position[0] + baking_aabb_offset.x;
|
|
cfg.bmin[1] = baking_aabb.position[1] + baking_aabb_offset.y;
|
|
cfg.bmin[2] = baking_aabb.position[2] + baking_aabb_offset.z;
|
|
cfg.bmax[0] = cfg.bmin[0] + baking_aabb.size[0];
|
|
cfg.bmax[1] = cfg.bmin[1] + baking_aabb.size[1];
|
|
cfg.bmax[2] = cfg.bmin[2] + baking_aabb.size[2];
|
|
}
|
|
|
|
bake_state = "Calculating grid size..."; // step #2
|
|
rcCalcGridSize(cfg.bmin, cfg.bmax, cfg.cs, &cfg.width, &cfg.height);
|
|
|
|
// ~30000000 seems to be around sweetspot where Editor baking breaks
|
|
if ((cfg.width * cfg.height) > 30000000) {
|
|
WARN_PRINT("NavigationMesh baking process will likely fail."
|
|
"\nSource geometry is suspiciously big for the current Cell Size and Cell Height in the NavMesh Resource bake settings."
|
|
"\nIf baking does not fail, the resulting NavigationMesh will create serious pathfinding performance issues."
|
|
"\nIt is advised to increase Cell Size and/or Cell Height in the NavMesh Resource bake settings or reduce the size / scale of the source geometry.");
|
|
}
|
|
|
|
bake_state = "Creating heightfield..."; // step #3
|
|
hf = rcAllocHeightfield();
|
|
|
|
ERR_FAIL_NULL(hf);
|
|
ERR_FAIL_COND(!rcCreateHeightfield(&ctx, *hf, cfg.width, cfg.height, cfg.bmin, cfg.bmax, cfg.cs, cfg.ch));
|
|
|
|
bake_state = "Marking walkable triangles..."; // step #4
|
|
{
|
|
Vector<unsigned char> tri_areas;
|
|
tri_areas.resize(ntris);
|
|
|
|
ERR_FAIL_COND(tri_areas.size() == 0);
|
|
|
|
memset(tri_areas.ptrw(), 0, ntris * sizeof(unsigned char));
|
|
rcMarkWalkableTriangles(&ctx, cfg.walkableSlopeAngle, verts, nverts, tris, ntris, tri_areas.ptrw());
|
|
|
|
ERR_FAIL_COND(!rcRasterizeTriangles(&ctx, verts, nverts, tris, tri_areas.ptr(), ntris, *hf, cfg.walkableClimb));
|
|
}
|
|
|
|
if (p_navigation_mesh->get_filter_low_hanging_obstacles()) {
|
|
rcFilterLowHangingWalkableObstacles(&ctx, cfg.walkableClimb, *hf);
|
|
}
|
|
if (p_navigation_mesh->get_filter_ledge_spans()) {
|
|
rcFilterLedgeSpans(&ctx, cfg.walkableHeight, cfg.walkableClimb, *hf);
|
|
}
|
|
if (p_navigation_mesh->get_filter_walkable_low_height_spans()) {
|
|
rcFilterWalkableLowHeightSpans(&ctx, cfg.walkableHeight, *hf);
|
|
}
|
|
|
|
bake_state = "Constructing compact heightfield..."; // step #5
|
|
|
|
chf = rcAllocCompactHeightfield();
|
|
|
|
ERR_FAIL_NULL(chf);
|
|
ERR_FAIL_COND(!rcBuildCompactHeightfield(&ctx, cfg.walkableHeight, cfg.walkableClimb, *hf, *chf));
|
|
|
|
rcFreeHeightField(hf);
|
|
hf = nullptr;
|
|
|
|
bake_state = "Eroding walkable area..."; // step #6
|
|
|
|
ERR_FAIL_COND(!rcErodeWalkableArea(&ctx, cfg.walkableRadius, *chf));
|
|
|
|
bake_state = "Partitioning..."; // step #7
|
|
|
|
if (p_navigation_mesh->get_sample_partition_type() == NavigationMesh::SAMPLE_PARTITION_WATERSHED) {
|
|
ERR_FAIL_COND(!rcBuildDistanceField(&ctx, *chf));
|
|
ERR_FAIL_COND(!rcBuildRegions(&ctx, *chf, cfg.borderSize, cfg.minRegionArea, cfg.mergeRegionArea));
|
|
} else if (p_navigation_mesh->get_sample_partition_type() == NavigationMesh::SAMPLE_PARTITION_MONOTONE) {
|
|
ERR_FAIL_COND(!rcBuildRegionsMonotone(&ctx, *chf, cfg.borderSize, cfg.minRegionArea, cfg.mergeRegionArea));
|
|
} else {
|
|
ERR_FAIL_COND(!rcBuildLayerRegions(&ctx, *chf, cfg.borderSize, cfg.minRegionArea));
|
|
}
|
|
|
|
bake_state = "Creating contours..."; // step #8
|
|
|
|
cset = rcAllocContourSet();
|
|
|
|
ERR_FAIL_NULL(cset);
|
|
ERR_FAIL_COND(!rcBuildContours(&ctx, *chf, cfg.maxSimplificationError, cfg.maxEdgeLen, *cset));
|
|
|
|
bake_state = "Creating polymesh..."; // step #9
|
|
|
|
poly_mesh = rcAllocPolyMesh();
|
|
ERR_FAIL_NULL(poly_mesh);
|
|
ERR_FAIL_COND(!rcBuildPolyMesh(&ctx, *cset, cfg.maxVertsPerPoly, *poly_mesh));
|
|
|
|
detail_mesh = rcAllocPolyMeshDetail();
|
|
ERR_FAIL_NULL(detail_mesh);
|
|
ERR_FAIL_COND(!rcBuildPolyMeshDetail(&ctx, *poly_mesh, *chf, cfg.detailSampleDist, cfg.detailSampleMaxError, *detail_mesh));
|
|
|
|
rcFreeCompactHeightfield(chf);
|
|
chf = nullptr;
|
|
rcFreeContourSet(cset);
|
|
cset = nullptr;
|
|
|
|
bake_state = "Converting to native navigation mesh..."; // step #10
|
|
|
|
Vector<Vector3> nav_vertices;
|
|
|
|
for (int i = 0; i < detail_mesh->nverts; i++) {
|
|
const float *v = &detail_mesh->verts[i * 3];
|
|
nav_vertices.push_back(Vector3(v[0], v[1], v[2]));
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}
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p_navigation_mesh->set_vertices(nav_vertices);
|
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p_navigation_mesh->clear_polygons();
|
|
|
|
for (int i = 0; i < detail_mesh->nmeshes; i++) {
|
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const unsigned int *detail_mesh_m = &detail_mesh->meshes[i * 4];
|
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const unsigned int detail_mesh_bverts = detail_mesh_m[0];
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const unsigned int detail_mesh_m_btris = detail_mesh_m[2];
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const unsigned int detail_mesh_ntris = detail_mesh_m[3];
|
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const unsigned char *detail_mesh_tris = &detail_mesh->tris[detail_mesh_m_btris * 4];
|
|
for (unsigned int j = 0; j < detail_mesh_ntris; j++) {
|
|
Vector<int> nav_indices;
|
|
nav_indices.resize(3);
|
|
// Polygon order in recast is opposite than godot's
|
|
nav_indices.write[0] = ((int)(detail_mesh_bverts + detail_mesh_tris[j * 4 + 0]));
|
|
nav_indices.write[1] = ((int)(detail_mesh_bverts + detail_mesh_tris[j * 4 + 2]));
|
|
nav_indices.write[2] = ((int)(detail_mesh_bverts + detail_mesh_tris[j * 4 + 1]));
|
|
p_navigation_mesh->add_polygon(nav_indices);
|
|
}
|
|
}
|
|
|
|
bake_state = "Cleanup..."; // step #11
|
|
|
|
rcFreePolyMesh(poly_mesh);
|
|
poly_mesh = nullptr;
|
|
rcFreePolyMeshDetail(detail_mesh);
|
|
detail_mesh = nullptr;
|
|
|
|
bake_state = "Baking finished."; // step #12
|
|
}
|
|
|
|
bool NavMeshGenerator3D::generator_emit_callback(const Callable &p_callback) {
|
|
ERR_FAIL_COND_V(!p_callback.is_valid(), false);
|
|
|
|
Callable::CallError ce;
|
|
Variant result;
|
|
p_callback.callp(nullptr, 0, result, ce);
|
|
|
|
return ce.error == Callable::CallError::CALL_OK;
|
|
}
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|
|
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#endif // _3D_DISABLED
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