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Diffstat (limited to 'core/io/multiplayer_replicator.h')
| -rw-r--r-- | core/io/multiplayer_replicator.h | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/core/io/multiplayer_replicator.h b/core/io/multiplayer_replicator.h new file mode 100644 index 0000000000..2630ad7a8a --- /dev/null +++ b/core/io/multiplayer_replicator.h @@ -0,0 +1,129 @@ +/*************************************************************************/ +/* multiplayer_replicator.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 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 MULTIPLAYER_REPLICATOR_H +#define MULTIPLAYER_REPLICATOR_H + +#include "core/io/multiplayer_api.h" + +#include "core/templates/hash_map.h" +#include "core/variant/typed_array.h" + +class MultiplayerReplicator : public Object { + GDCLASS(MultiplayerReplicator, Object); + +public: + enum { + SPAWN_CMD_OFFSET = 9, + SYNC_CMD_OFFSET = 9, + }; + + enum ReplicationMode { + REPLICATION_MODE_NONE, + REPLICATION_MODE_SERVER, + REPLICATION_MODE_CUSTOM, + }; + + struct SceneConfig { + ReplicationMode mode; + uint64_t sync_interval = 0; + uint64_t sync_last = 0; + uint8_t sync_recv = 0; + List<StringName> properties; + List<StringName> sync_properties; + Callable on_spawn_despawn_send; + Callable on_spawn_despawn_receive; + Callable on_sync_send; + Callable on_sync_receive; + }; + +protected: + static void _bind_methods(); + +private: + MultiplayerAPI *multiplayer = nullptr; + Vector<uint8_t> packet_cache; + Map<ResourceUID::ID, SceneConfig> replications; + Map<ObjectID, ResourceUID::ID> replicated_nodes; + HashMap<ResourceUID::ID, List<ObjectID>> tracked_objects; + + // Encoding + Error _get_state(const List<StringName> &p_properties, const Object *p_obj, List<Variant> &r_variant); + Error _encode_state(const List<Variant> &p_variants, uint8_t *p_buffer, int &r_len, bool *r_raw = nullptr); + Error _decode_state(const List<StringName> &p_cfg, Object *p_obj, const uint8_t *p_buffer, int p_len, int &r_len, bool p_raw = false); + + // Spawn + Error _spawn_despawn(ResourceUID::ID p_scene_id, Object *p_obj, int p_peer, bool p_spawn); + Error _send_spawn_despawn(int p_peer_id, const ResourceUID::ID &p_scene_id, const Variant &p_data, bool p_spawn); + void _process_default_spawn_despawn(int p_from, const ResourceUID::ID &p_scene_id, const uint8_t *p_packet, int p_packet_len, bool p_spawn); + Error _send_default_spawn_despawn(int p_peer_id, const ResourceUID::ID &p_scene_id, Object *p_obj, const NodePath &p_path, bool p_spawn); + + // Sync + void _process_default_sync(const ResourceUID::ID &p_id, const uint8_t *p_packet, int p_packet_len); + Error _sync_all_default(const ResourceUID::ID &p_scene_id, int p_peer); + void _track(const ResourceUID::ID &p_scene_id, Object *p_object); + void _untrack(const ResourceUID::ID &p_scene_id, Object *p_object); + +public: + void clear(); + + // Encoding + PackedByteArray encode_state(const ResourceUID::ID &p_scene_id, const Object *p_node, bool p_initial); + Error decode_state(const ResourceUID::ID &p_scene_id, Object *p_node, PackedByteArray p_data, bool p_initial); + + // Spawn + Error spawn_config(const ResourceUID::ID &p_id, ReplicationMode p_mode, const TypedArray<StringName> &p_props = TypedArray<StringName>(), const Callable &p_on_send = Callable(), const Callable &p_on_recv = Callable()); + Error spawn(ResourceUID::ID p_scene_id, Object *p_obj, int p_peer = 0); + Error despawn(ResourceUID::ID p_scene_id, Object *p_obj, int p_peer = 0); + Error send_despawn(int p_peer_id, const ResourceUID::ID &p_scene_id, const Variant &p_data = Variant(), const NodePath &p_path = NodePath()); + Error send_spawn(int p_peer_id, const ResourceUID::ID &p_scene_id, const Variant &p_data = Variant(), const NodePath &p_path = NodePath()); + + // Sync + Error sync_config(const ResourceUID::ID &p_id, uint64_t p_interval, const TypedArray<StringName> &p_props = TypedArray<StringName>(), const Callable &p_on_send = Callable(), const Callable &p_on_recv = Callable()); + Error sync_all(const ResourceUID::ID &p_scene_id, int p_peer); + Error send_sync(int p_peer_id, const ResourceUID::ID &p_scene_id, PackedByteArray p_data, MultiplayerPeer::TransferMode p_mode, int p_channel); + void track(const ResourceUID::ID &p_scene_id, Object *p_object); + void untrack(const ResourceUID::ID &p_scene_id, Object *p_object); + + // Used by MultiplayerAPI + void spawn_all(int p_peer); + void process_spawn_despawn(int p_from, const uint8_t *p_packet, int p_packet_len, bool p_spawn); + void process_sync(int p_from, const uint8_t *p_packet, int p_packet_len); + void scene_enter_exit_notify(const String &p_scene, Node *p_node, bool p_enter); + void poll(); + + MultiplayerReplicator(MultiplayerAPI *p_multiplayer) { + multiplayer = p_multiplayer; + } +}; + +VARIANT_ENUM_CAST(MultiplayerReplicator::ReplicationMode); + +#endif // MULTIPLAYER_REPLICATOR_H |