[Net] Modularize multiplayer, expose MultiplayerAPI to extensions.

- RPC configurations are now dictionaries.
- Script.get_rpc_methods renamed to Script.get_rpc_config.
- Node.rpc[_id] and Callable.rpc now return an Error.
- Refactor MultiplayerAPI to allow extension.
- New MultiplayerAPI.rpc method with Array argument (for scripts).
- Move the default MultiplayerAPI implementation to a module.

1 files changed, 60 insertions, 0 deletions

diff --git a/modules/multiplayer/register_types.cpp b/modules/multiplayer/register_types.cpp
new file mode 100644
index 0000000000..a2c524da80
--- /dev/null
+++ b/modules/multiplayer/register_types.cpp
@@ -0,0 +1,60 @@
+/*************************************************************************/
+/*  register_types.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 "register_types.h"
+
+#include "multiplayer_spawner.h"
+#include "multiplayer_synchronizer.h"
+#include "scene_multiplayer.h"
+#include "scene_replication_interface.h"
+#include "scene_rpc_interface.h"
+
+#ifdef TOOLS_ENABLED
+#include "editor/editor_plugin.h"
+#include "editor/replication_editor_plugin.h"
+#endif
+
+void initialize_multiplayer_module(ModuleInitializationLevel p_level) {
+	if (p_level == MODULE_INITIALIZATION_LEVEL_SCENE) {
+		GDREGISTER_CLASS(SceneReplicationConfig);
+		GDREGISTER_CLASS(MultiplayerSpawner);
+		GDREGISTER_CLASS(MultiplayerSynchronizer);
+		GDREGISTER_CLASS(SceneMultiplayer);
+		MultiplayerAPI::set_default_interface("SceneMultiplayer");
+	}
+#ifdef TOOLS_ENABLED
+	if (p_level == MODULE_INITIALIZATION_LEVEL_EDITOR) {
+		EditorPlugins::add_by_type<ReplicationEditorPlugin>();
+	}
+#endif
+}
+
+void uninitialize_multiplayer_module(ModuleInitializationLevel p_level) {
+}