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Diffstat (limited to 'scene/multiplayer/scene_rpc_interface.h')
| -rw-r--r-- | scene/multiplayer/scene_rpc_interface.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/scene/multiplayer/scene_rpc_interface.h b/scene/multiplayer/scene_rpc_interface.h new file mode 100644 index 0000000000..86e1d0d280 --- /dev/null +++ b/scene/multiplayer/scene_rpc_interface.h @@ -0,0 +1,91 @@ +/*************************************************************************/ +/* 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 |