[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, 0 insertions, 91 deletions

diff --git a/scene/multiplayer/scene_rpc_interface.h b/scene/multiplayer/scene_rpc_interface.h
deleted file mode 100644
index 86e1d0d280..0000000000
--- a/scene/multiplayer/scene_rpc_interface.h
+++ /dev/null
@@ -1,91 +0,0 @@
-/*************************************************************************/
-/*  scene_rpc_interface.h                                                */
-/*************************************************************************/
-/*                       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.                */
-/*************************************************************************/
-
-#ifndef SCENE_RPC_INTERFACE_H
-#define SCENE_RPC_INTERFACE_H
-
-#include "core/multiplayer/multiplayer.h"
-#include "core/multiplayer/multiplayer_api.h"
-
-class SceneRPCInterface : public MultiplayerRPCInterface {
-	GDCLASS(SceneRPCInterface, MultiplayerRPCInterface);
-
-private:
-	enum NetworkNodeIdCompression {
-		NETWORK_NODE_ID_COMPRESSION_8 = 0,
-		NETWORK_NODE_ID_COMPRESSION_16,
-		NETWORK_NODE_ID_COMPRESSION_32,
-	};
-
-	enum NetworkNameIdCompression {
-		NETWORK_NAME_ID_COMPRESSION_8 = 0,
-		NETWORK_NAME_ID_COMPRESSION_16,
-	};
-
-	// The RPC meta is composed by a single byte that contains (starting from the least significant bit):
-	// - `NetworkCommands` in the first four bits.
-	// - `NetworkNodeIdCompression` in the next 2 bits.
-	// - `NetworkNameIdCompression` in the next 1 bit.
-	// - `byte_only_or_no_args` in the next 1 bit.
-	enum {
-		NODE_ID_COMPRESSION_SHIFT = MultiplayerAPI::CMD_FLAG_0_SHIFT, // 2 bits for this.
-		NAME_ID_COMPRESSION_SHIFT = MultiplayerAPI::CMD_FLAG_2_SHIFT,
-		BYTE_ONLY_OR_NO_ARGS_SHIFT = MultiplayerAPI::CMD_FLAG_3_SHIFT,
-	};
-
-	enum {
-		NODE_ID_COMPRESSION_FLAG = (1 << NODE_ID_COMPRESSION_SHIFT) | (1 << (NODE_ID_COMPRESSION_SHIFT + 1)), // 2 bits for this.
-		NAME_ID_COMPRESSION_FLAG = (1 << NAME_ID_COMPRESSION_SHIFT),
-		BYTE_ONLY_OR_NO_ARGS_FLAG = (1 << BYTE_ONLY_OR_NO_ARGS_SHIFT),
-	};
-
-	MultiplayerAPI *multiplayer = nullptr;
-	Vector<uint8_t> packet_cache;
-
-protected:
-	static MultiplayerRPCInterface *_create(MultiplayerAPI *p_multiplayer);
-
-	_FORCE_INLINE_ void _profile_node_data(const String &p_what, ObjectID p_id);
-	void _process_rpc(Node *p_node, const uint16_t p_rpc_method_id, int p_from, const uint8_t *p_packet, int p_packet_len, int p_offset);
-
-	void _send_rpc(Node *p_from, int p_to, uint16_t p_rpc_id, const Multiplayer::RPCConfig &p_config, const StringName &p_name, const Variant **p_arg, int p_argcount);
-	Node *_process_get_node(int p_from, const uint8_t *p_packet, uint32_t p_node_target, int p_packet_len);
-
-public:
-	static void make_default();
-
-	virtual void rpcp(Object *p_obj, int p_peer_id, const StringName &p_method, const Variant **p_arg, int p_argcount) override;
-	virtual void process_rpc(int p_from, const uint8_t *p_packet, int p_packet_len) override;
-	virtual String get_rpc_md5(const Object *p_obj) const override;
-
-	SceneRPCInterface(MultiplayerAPI *p_multiplayer) { multiplayer = p_multiplayer; }
-};
-
-#endif // SCENE_RPC_INTERFACE_H