initial commit, 4.5 stable

modules/navigation_2d/2d/nav_mesh_generator_2d.h

@@ -0,0 +1,103 @@
+/**************************************************************************/
+/*  nav_mesh_generator_2d.h                                               */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* 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.                 */
+/**************************************************************************/
+
+#pragma once
+
+#ifdef CLIPPER2_ENABLED
+
+#include "core/object/class_db.h"
+#include "core/object/worker_thread_pool.h"
+#include "core/templates/rid_owner.h"
+#include "servers/navigation_server_2d.h"
+
+class Node;
+class NavigationPolygon;
+class NavigationMeshSourceGeometryData2D;
+
+class NavMeshGenerator2D : public Object {
+	static NavMeshGenerator2D *singleton;
+
+	static Mutex baking_navmesh_mutex;
+	static Mutex generator_task_mutex;
+
+	static RWLock generator_parsers_rwlock;
+	static LocalVector<NavMeshGeometryParser2D *> generator_parsers;
+
+	static bool use_threads;
+	static bool baking_use_multiple_threads;
+	static bool baking_use_high_priority_threads;
+
+	struct NavMeshGeneratorTask2D {
+		enum TaskStatus {
+			BAKING_STARTED,
+			BAKING_FINISHED,
+			BAKING_FAILED,
+			CALLBACK_DISPATCHED,
+			CALLBACK_FAILED,
+		};
+
+		Ref<NavigationPolygon> navigation_mesh;
+		Ref<NavigationMeshSourceGeometryData2D> source_geometry_data;
+		Callable callback;
+		WorkerThreadPool::TaskID thread_task_id = WorkerThreadPool::INVALID_TASK_ID;
+		NavMeshGeneratorTask2D::TaskStatus status = NavMeshGeneratorTask2D::TaskStatus::BAKING_STARTED;
+	};
+
+	static HashMap<WorkerThreadPool::TaskID, NavMeshGeneratorTask2D *> generator_tasks;
+
+	static void generator_thread_bake(void *p_arg);
+
+	static HashSet<Ref<NavigationPolygon>> baking_navmeshes;
+
+	static void generator_parse_geometry_node(Ref<NavigationPolygon> p_navigation_mesh, Ref<NavigationMeshSourceGeometryData2D> p_source_geometry_data, Node *p_node, bool p_recurse_children);
+	static void generator_parse_source_geometry_data(Ref<NavigationPolygon> p_navigation_mesh, Ref<NavigationMeshSourceGeometryData2D> p_source_geometry_data, Node *p_root_node);
+	static void generator_bake_from_source_geometry_data(Ref<NavigationPolygon> p_navigation_mesh, Ref<NavigationMeshSourceGeometryData2D> p_source_geometry_data);
+
+	static bool generator_emit_callback(const Callable &p_callback);
+
+public:
+	static NavMeshGenerator2D *get_singleton();
+
+	static void sync();
+	static void cleanup();
+	static void finish();
+
+	static void set_generator_parsers(LocalVector<NavMeshGeometryParser2D *> p_parsers);
+
+	static void parse_source_geometry_data(Ref<NavigationPolygon> p_navigation_mesh, Ref<NavigationMeshSourceGeometryData2D> p_source_geometry_data, Node *p_root_node, const Callable &p_callback = Callable());
+	static void bake_from_source_geometry_data(Ref<NavigationPolygon> p_navigation_mesh, Ref<NavigationMeshSourceGeometryData2D> p_source_geometry_data, const Callable &p_callback = Callable());
+	static void bake_from_source_geometry_data_async(Ref<NavigationPolygon> p_navigation_mesh, Ref<NavigationMeshSourceGeometryData2D> p_source_geometry_data, const Callable &p_callback = Callable());
+	static bool is_baking(Ref<NavigationPolygon> p_navigation_polygon);
+
+	NavMeshGenerator2D();
+	~NavMeshGenerator2D();
+};
+
+#endif // CLIPPER2_ENABLED