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godot/modules/multiplayer/scene_replication_interface.cpp

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[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
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/*************************************************************************/
/* scene_replication_interface.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 "scene_replication_interface.h"
#include "core/io/marshalls.h"
#include "scene/main/node.h"
[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.
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#include "multiplayer_spawner.h"
#include "multiplayer_synchronizer.h"
#include "scene_multiplayer.h"
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
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#define MAKE_ROOM(m_amount) \
if (packet_cache.size() < m_amount) \
packet_cache.resize(m_amount);
void SceneReplicationInterface::_free_remotes(int p_id) {
const HashMap<uint32_t, ObjectID> remotes = rep_state->peer_get_remotes(p_id);
Add a new HashMap implementation Adds a new, cleaned up, HashMap implementation. * Uses Robin Hood Hashing (https://en.wikipedia.org/wiki/Hash_table#Robin_Hood_hashing). * Keeps elements in a double linked list for simpler, ordered, iteration. * Allows keeping iterators for later use in removal (Unlike Map<>, it does not do much for performance vs keeping the key, but helps replace old code). * Uses a more modern C++ iterator API, deprecates the old one. * Supports custom allocator (in case there is a wish to use a paged one). This class aims to unify all the associative template usage and replace it by this one: * Map<> (whereas key order does not matter, which is 99% of cases) * HashMap<> * OrderedHashMap<> * OAHashMap<>
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for (const KeyValue<uint32_t, ObjectID> &E : remotes) {
Node *node = rep_state->get_node(E.value);
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
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ERR_CONTINUE(!node);
node->queue_delete();
}
}
void SceneReplicationInterface::on_peer_change(int p_id, bool p_connected) {
if (p_connected) {
rep_state->on_peer_change(p_id, p_connected);
for (const ObjectID &oid : rep_state->get_spawned_nodes()) {
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
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_update_spawn_visibility(p_id, oid);
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
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}
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
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for (const ObjectID &oid : rep_state->get_synced_nodes()) {
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
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MultiplayerSynchronizer *sync = rep_state->get_synchronizer(oid);
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
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ERR_CONTINUE(!sync); // ERR_BUG
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
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if (sync->is_multiplayer_authority()) {
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
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_update_sync_visibility(p_id, oid);
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
}
}
} else {
_free_remotes(p_id);
rep_state->on_peer_change(p_id, p_connected);
}
}
void SceneReplicationInterface::on_reset() {
for (int pid : rep_state->get_peers()) {
_free_remotes(pid);
}
rep_state->reset();
}
void SceneReplicationInterface::on_network_process() {
uint64_t msec = OS::get_singleton()->get_ticks_msec();
for (int peer : rep_state->get_peers()) {
_send_sync(peer, msec);
}
}
Error SceneReplicationInterface::on_spawn(Object *p_obj, Variant p_config) {
Node *node = Object::cast_to<Node>(p_obj);
ERR_FAIL_COND_V(!node || p_config.get_type() != Variant::OBJECT, ERR_INVALID_PARAMETER);
MultiplayerSpawner *spawner = Object::cast_to<MultiplayerSpawner>(p_config.get_validated_object());
ERR_FAIL_COND_V(!spawner, ERR_INVALID_PARAMETER);
Error err = rep_state->config_add_spawn(node, spawner);
ERR_FAIL_COND_V(err != OK, err);
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
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const ObjectID oid = node->get_instance_id();
if (multiplayer->has_multiplayer_peer() && spawner->is_multiplayer_authority()) {
rep_state->ensure_net_id(oid);
_update_spawn_visibility(0, oid);
}
ERR_FAIL_COND_V(err != OK, err);
return OK;
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
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}
Error SceneReplicationInterface::on_despawn(Object *p_obj, Variant p_config) {
Node *node = Object::cast_to<Node>(p_obj);
ERR_FAIL_COND_V(!node || p_config.get_type() != Variant::OBJECT, ERR_INVALID_PARAMETER);
MultiplayerSpawner *spawner = Object::cast_to<MultiplayerSpawner>(p_config.get_validated_object());
ERR_FAIL_COND_V(!p_obj || !spawner, ERR_INVALID_PARAMETER);
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
2022-07-09 18:45:30 +00:00
// Forcibly despawn to all peers that knowns me.
int len = 0;
Error err = _make_despawn_packet(node, len);
ERR_FAIL_COND_V(err != OK, ERR_BUG);
const ObjectID oid = p_obj->get_instance_id();
for (int pid : rep_state->get_peers()) {
if (!rep_state->is_peer_spawn(pid, oid)) {
continue;
}
_send_raw(packet_cache.ptr(), len, pid, true);
}
// Also remove spawner tracking from the replication state.
return rep_state->config_del_spawn(node, spawner);
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
}
Error SceneReplicationInterface::on_replication_start(Object *p_obj, Variant p_config) {
Node *node = Object::cast_to<Node>(p_obj);
ERR_FAIL_COND_V(!node || p_config.get_type() != Variant::OBJECT, ERR_INVALID_PARAMETER);
MultiplayerSynchronizer *sync = Object::cast_to<MultiplayerSynchronizer>(p_config.get_validated_object());
ERR_FAIL_COND_V(!sync, ERR_INVALID_PARAMETER);
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
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// Add to synchronizer list and setup visibility.
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
rep_state->config_add_sync(node, sync);
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
2022-07-09 18:45:30 +00:00
const ObjectID oid = node->get_instance_id();
Remove Signal connect binds Remove the optional argument p_binds from `Object::connect` since it was deprecated by Callable.bind(). Changed all uses of it to Callable.bind()
2022-07-28 20:56:41 +00:00
sync->connect("visibility_changed", callable_mp(this, &SceneReplicationInterface::_visibility_changed).bind(oid));
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
2022-07-09 18:45:30 +00:00
if (multiplayer->has_multiplayer_peer() && sync->is_multiplayer_authority()) {
_update_sync_visibility(0, oid);
}
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
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// Try to apply initial state if spawning (hack to apply if before ready).
if (pending_spawn == p_obj->get_instance_id()) {
pending_spawn = ObjectID(); // Make sure this only happens once.
const List<NodePath> props = sync->get_replication_config()->get_spawn_properties();
Vector<Variant> vars;
vars.resize(props.size());
int consumed;
Error err = MultiplayerAPI::decode_and_decompress_variants(vars, pending_buffer, pending_buffer_size, consumed);
ERR_FAIL_COND_V(err, err);
err = MultiplayerSynchronizer::set_state(props, node, vars);
ERR_FAIL_COND_V(err, err);
}
return OK;
}
Error SceneReplicationInterface::on_replication_stop(Object *p_obj, Variant p_config) {
Node *node = Object::cast_to<Node>(p_obj);
ERR_FAIL_COND_V(!node || p_config.get_type() != Variant::OBJECT, ERR_INVALID_PARAMETER);
MultiplayerSynchronizer *sync = Object::cast_to<MultiplayerSynchronizer>(p_config.get_validated_object());
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
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ERR_FAIL_COND_V(!sync, ERR_INVALID_PARAMETER);
sync->disconnect("visibility_changed", callable_mp(this, &SceneReplicationInterface::_visibility_changed));
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
return rep_state->config_del_sync(node, sync);
}
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
2022-07-09 18:45:30 +00:00
void SceneReplicationInterface::_visibility_changed(int p_peer, ObjectID p_oid) {
if (rep_state->is_spawned_node(p_oid)) {
_update_spawn_visibility(p_peer, p_oid);
}
if (rep_state->is_synced_node(p_oid)) {
_update_sync_visibility(p_peer, p_oid);
}
}
Error SceneReplicationInterface::_update_sync_visibility(int p_peer, const ObjectID &p_oid) {
MultiplayerSynchronizer *sync = rep_state->get_synchronizer(p_oid);
ERR_FAIL_COND_V(!sync || !sync->is_multiplayer_authority(), ERR_BUG);
bool is_visible = sync->is_visible_to(p_peer);
if (p_peer == 0) {
for (int pid : rep_state->get_peers()) {
// Might be visible to this specific peer.
is_visible = is_visible || sync->is_visible_to(pid);
if (rep_state->is_peer_sync(pid, p_oid) == is_visible) {
continue;
}
if (is_visible) {
rep_state->peer_add_sync(pid, p_oid);
} else {
rep_state->peer_del_sync(pid, p_oid);
}
}
return OK;
} else {
if (is_visible == rep_state->is_peer_sync(p_peer, p_oid)) {
return OK;
}
if (is_visible) {
return rep_state->peer_add_sync(p_peer, p_oid);
} else {
return rep_state->peer_del_sync(p_peer, p_oid);
}
}
}
Error SceneReplicationInterface::_update_spawn_visibility(int p_peer, const ObjectID &p_oid) {
MultiplayerSpawner *spawner = rep_state->get_spawner(p_oid);
MultiplayerSynchronizer *sync = rep_state->get_synchronizer(p_oid);
Node *node = Object::cast_to<Node>(ObjectDB::get_instance(p_oid));
ERR_FAIL_COND_V(!node || !spawner || !spawner->is_multiplayer_authority(), ERR_BUG);
bool is_visible = !sync || sync->is_visible_to(p_peer);
// Spawn (and despawn) when needed.
HashSet<int> to_spawn;
HashSet<int> to_despawn;
if (p_peer) {
if (is_visible == rep_state->is_peer_spawn(p_peer, p_oid)) {
return OK;
}
if (is_visible) {
to_spawn.insert(p_peer);
} else {
to_despawn.insert(p_peer);
}
} else {
// Check visibility for each peers.
for (int pid : rep_state->get_peers()) {
bool peer_visible = is_visible || sync->is_visible_to(pid);
if (peer_visible == rep_state->is_peer_spawn(pid, p_oid)) {
continue;
}
if (peer_visible) {
to_spawn.insert(pid);
} else {
to_despawn.insert(pid);
}
}
}
if (to_spawn.size()) {
int len = 0;
_make_spawn_packet(node, len);
for (int pid : to_spawn) {
int path_id;
[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.
2022-07-12 21:12:42 +00:00
multiplayer->get_path_cache()->send_object_cache(spawner, pid, path_id);
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
2022-07-09 18:45:30 +00:00
_send_raw(packet_cache.ptr(), len, pid, true);
rep_state->peer_add_spawn(pid, p_oid);
}
}
if (to_despawn.size()) {
int len = 0;
_make_despawn_packet(node, len);
for (int pid : to_despawn) {
rep_state->peer_del_spawn(pid, p_oid);
_send_raw(packet_cache.ptr(), len, pid, true);
}
}
return OK;
}
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
Error SceneReplicationInterface::_send_raw(const uint8_t *p_buffer, int p_size, int p_peer, bool p_reliable) {
ERR_FAIL_COND_V(!p_buffer || p_size < 1, ERR_INVALID_PARAMETER);
ERR_FAIL_COND_V(!multiplayer, ERR_UNCONFIGURED);
ERR_FAIL_COND_V(!multiplayer->has_multiplayer_peer(), ERR_UNCONFIGURED);
[Debugger] Move most profilers to ServersDebugger. Also splits bandwidth/rpc profiler (RPCProfiler is now in SceneDebugger).
2022-02-06 01:29:08 +00:00
#ifdef DEBUG_ENABLED
multiplayer->profile_bandwidth("out", p_size);
#endif
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
Ref<MultiplayerPeer> peer = multiplayer->get_multiplayer_peer();
peer->set_target_peer(p_peer);
peer->set_transfer_channel(0);
[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.
2022-07-12 21:12:42 +00:00
peer->set_transfer_mode(p_reliable ? MultiplayerPeer::TRANSFER_MODE_RELIABLE : MultiplayerPeer::TRANSFER_MODE_UNRELIABLE);
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
return peer->put_packet(p_buffer, p_size);
}
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
2022-07-09 18:45:30 +00:00
Error SceneReplicationInterface::_make_spawn_packet(Node *p_node, int &r_len) {
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
ERR_FAIL_COND_V(!multiplayer, ERR_BUG);
const ObjectID oid = p_node->get_instance_id();
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
2022-07-09 18:45:30 +00:00
MultiplayerSpawner *spawner = rep_state->get_spawner(oid);
ERR_FAIL_COND_V(!spawner || !p_node, ERR_BUG);
uint32_t nid = rep_state->get_net_id(oid);
ERR_FAIL_COND_V(!nid, ERR_UNCONFIGURED);
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
// Prepare custom arg and scene_id
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
2022-07-09 18:45:30 +00:00
uint8_t scene_id = spawner->find_spawnable_scene_index_from_object(oid);
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
bool is_custom = scene_id == MultiplayerSpawner::INVALID_ID;
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
2022-07-09 18:45:30 +00:00
Variant spawn_arg = spawner->get_spawn_argument(oid);
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
int spawn_arg_size = 0;
if (is_custom) {
Error err = MultiplayerAPI::encode_and_compress_variant(spawn_arg, nullptr, spawn_arg_size, false);
ERR_FAIL_COND_V(err, err);
}
// Prepare spawn state.
int state_size = 0;
Vector<Variant> state_vars;
Vector<const Variant *> state_varp;
MultiplayerSynchronizer *synchronizer = rep_state->get_synchronizer(oid);
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
2022-07-09 18:45:30 +00:00
if (synchronizer) {
ERR_FAIL_COND_V(synchronizer->get_replication_config().is_null(), ERR_BUG);
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
const List<NodePath> props = synchronizer->get_replication_config()->get_spawn_properties();
Error err = MultiplayerSynchronizer::get_state(props, p_node, state_vars, state_varp);
ERR_FAIL_COND_V_MSG(err != OK, err, "Unable to retrieve spawn state.");
err = MultiplayerAPI::encode_and_compress_variants(state_varp.ptrw(), state_varp.size(), nullptr, state_size);
ERR_FAIL_COND_V_MSG(err != OK, err, "Unable to encode spawn state.");
}
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
2022-07-09 18:45:30 +00:00
// Encode scene ID, path ID, net ID, node name.
[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.
2022-07-12 21:12:42 +00:00
int path_id = multiplayer->get_path_cache()->make_object_cache(spawner);
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
CharString cname = p_node->get_name().operator String().utf8();
int nlen = encode_cstring(cname.get_data(), nullptr);
MAKE_ROOM(1 + 1 + 4 + 4 + 4 + nlen + (is_custom ? 4 + spawn_arg_size : 0) + state_size);
uint8_t *ptr = packet_cache.ptrw();
[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.
2022-07-12 21:12:42 +00:00
ptr[0] = (uint8_t)SceneMultiplayer::NETWORK_COMMAND_SPAWN;
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
ptr[1] = scene_id;
int ofs = 2;
ofs += encode_uint32(path_id, &ptr[ofs]);
ofs += encode_uint32(nid, &ptr[ofs]);
ofs += encode_uint32(nlen, &ptr[ofs]);
ofs += encode_cstring(cname.get_data(), &ptr[ofs]);
// Write args
if (is_custom) {
ofs += encode_uint32(spawn_arg_size, &ptr[ofs]);
Error err = MultiplayerAPI::encode_and_compress_variant(spawn_arg, &ptr[ofs], spawn_arg_size, false);
ERR_FAIL_COND_V(err, err);
ofs += spawn_arg_size;
}
// Write state.
if (state_size) {
Error err = MultiplayerAPI::encode_and_compress_variants(state_varp.ptrw(), state_varp.size(), &ptr[ofs], state_size);
ERR_FAIL_COND_V(err, err);
ofs += state_size;
}
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
2022-07-09 18:45:30 +00:00
r_len = ofs;
return OK;
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
}
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
2022-07-09 18:45:30 +00:00
Error SceneReplicationInterface::_make_despawn_packet(Node *p_node, int &r_len) {
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
const ObjectID oid = p_node->get_instance_id();
MAKE_ROOM(5);
uint8_t *ptr = packet_cache.ptrw();
[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.
2022-07-12 21:12:42 +00:00
ptr[0] = (uint8_t)SceneMultiplayer::NETWORK_COMMAND_DESPAWN;
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
int ofs = 1;
uint32_t nid = rep_state->get_net_id(oid);
ofs += encode_uint32(nid, &ptr[ofs]);
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
2022-07-09 18:45:30 +00:00
r_len = ofs;
return OK;
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
}
Error SceneReplicationInterface::on_spawn_receive(int p_from, const uint8_t *p_buffer, int p_buffer_len) {
ERR_FAIL_COND_V_MSG(p_buffer_len < 14, ERR_INVALID_DATA, "Invalid spawn packet received");
int ofs = 1; // The spawn/despawn command.
uint8_t scene_id = p_buffer[ofs];
ofs += 1;
uint32_t node_target = decode_uint32(&p_buffer[ofs]);
ofs += 4;
[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.
2022-07-12 21:12:42 +00:00
MultiplayerSpawner *spawner = Object::cast_to<MultiplayerSpawner>(multiplayer->get_path_cache()->get_cached_object(p_from, node_target));
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
ERR_FAIL_COND_V(!spawner, ERR_DOES_NOT_EXIST);
ERR_FAIL_COND_V(p_from != spawner->get_multiplayer_authority(), ERR_UNAUTHORIZED);
uint32_t net_id = decode_uint32(&p_buffer[ofs]);
ofs += 4;
uint32_t name_len = decode_uint32(&p_buffer[ofs]);
ofs += 4;
ERR_FAIL_COND_V_MSG(name_len > uint32_t(p_buffer_len - ofs), ERR_INVALID_DATA, vformat("Invalid spawn packet size: %d, wants: %d", p_buffer_len, ofs + name_len));
ERR_FAIL_COND_V_MSG(name_len < 1, ERR_INVALID_DATA, "Zero spawn name size.");
// We need to make sure no trickery happens here, but we want to allow autogenerated ("@") node names.
const String name = String::utf8((const char *)&p_buffer[ofs], name_len);
ERR_FAIL_COND_V_MSG(name.validate_node_name() != name, ERR_INVALID_DATA, vformat("Invalid node name received: '%s'. Make sure to add nodes via 'add_child(node, true)' remotely.", name));
ofs += name_len;
// Check that we can spawn.
Node *parent = spawner->get_node_or_null(spawner->get_spawn_path());
ERR_FAIL_COND_V(!parent, ERR_UNCONFIGURED);
ERR_FAIL_COND_V(parent->has_node(name), ERR_INVALID_DATA);
Node *node = nullptr;
if (scene_id == MultiplayerSpawner::INVALID_ID) {
// Custom spawn.
ERR_FAIL_COND_V(p_buffer_len - ofs < 4, ERR_INVALID_DATA);
uint32_t arg_size = decode_uint32(&p_buffer[ofs]);
ofs += 4;
ERR_FAIL_COND_V(arg_size > uint32_t(p_buffer_len - ofs), ERR_INVALID_DATA);
Variant v;
Error err = MultiplayerAPI::decode_and_decompress_variant(v, &p_buffer[ofs], arg_size, nullptr, false);
ERR_FAIL_COND_V(err != OK, err);
ofs += arg_size;
node = spawner->instantiate_custom(v);
} else {
// Scene based spawn.
node = spawner->instantiate_scene(scene_id);
}
ERR_FAIL_COND_V(!node, ERR_UNAUTHORIZED);
node->set_name(name);
rep_state->peer_add_remote(p_from, net_id, node, spawner);
// The initial state will be applied during the sync config (i.e. before _ready).
int state_len = p_buffer_len - ofs;
if (state_len) {
pending_spawn = node->get_instance_id();
pending_buffer = &p_buffer[ofs];
pending_buffer_size = state_len;
}
parent->add_child(node);
pending_spawn = ObjectID();
pending_buffer = nullptr;
pending_buffer_size = 0;
return OK;
}
Error SceneReplicationInterface::on_despawn_receive(int p_from, const uint8_t *p_buffer, int p_buffer_len) {
ERR_FAIL_COND_V_MSG(p_buffer_len < 5, ERR_INVALID_DATA, "Invalid spawn packet received");
int ofs = 1; // The spawn/despawn command.
uint32_t net_id = decode_uint32(&p_buffer[ofs]);
ofs += 4;
Node *node = nullptr;
Error err = rep_state->peer_del_remote(p_from, net_id, &node);
ERR_FAIL_COND_V(err != OK, err);
ERR_FAIL_COND_V(!node, ERR_BUG);
remove child on despawn instead of just queue_delete
2022-04-23 20:01:01 +00:00
if (node->get_parent() != nullptr) {
node->get_parent()->remove_child(node);
}
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
node->queue_delete();
return OK;
}
void SceneReplicationInterface::_send_sync(int p_peer, uint64_t p_msec) {
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
2022-07-09 18:45:30 +00:00
const HashSet<ObjectID> &to_sync = rep_state->get_peer_sync_nodes(p_peer);
if (to_sync.is_empty()) {
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
return;
}
MAKE_ROOM(sync_mtu);
uint8_t *ptr = packet_cache.ptrw();
[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.
2022-07-12 21:12:42 +00:00
ptr[0] = SceneMultiplayer::NETWORK_COMMAND_SYNC;
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
int ofs = 1;
ofs += encode_uint16(rep_state->peer_sync_next(p_peer), &ptr[1]);
// Can only send updates for already notified nodes.
// This is a lazy implementation, we could optimize much more here with by grouping by replication config.
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
2022-07-09 18:45:30 +00:00
for (const ObjectID &oid : to_sync) {
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
if (!rep_state->update_sync_time(oid, p_msec)) {
continue; // nothing to sync.
}
MultiplayerSynchronizer *sync = rep_state->get_synchronizer(oid);
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
2022-07-09 18:45:30 +00:00
ERR_CONTINUE(!sync || !sync->get_replication_config().is_valid());
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
Node *node = rep_state->get_node(oid);
ERR_CONTINUE(!node);
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
2022-07-09 18:45:30 +00:00
uint32_t net_id = rep_state->get_net_id(oid);
if (net_id == 0 || (net_id & 0x80000000)) {
int path_id = 0;
[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.
2022-07-12 21:12:42 +00:00
bool verified = multiplayer->get_path_cache()->send_object_cache(sync, p_peer, path_id);
Add peer visibility to MultiplayerSynchronizer. MultiplayerSynchronizers can now be configured to limit their visibility to a subset of the connected peers, if the synchronized node was spawned by a MultiplayerSpawner (either automatically or via custom spawn) the given node will also be despawned remotely. The replication system doesn't have the logic to handle subspawn directly, but it is possible to handle them appropriately by manually updating the visibility of the parent before changing the one of the nested spawns via the "update_visibility" function. The visibility of each MultiplayerSynchronizer can be controlled by adding or remove filters via "[add|remove]_visibility_filter(callable)". To further optimize the network code, visibility filters can be configured to be automatically updated during idle or physics frame, or set to always require manual update (via the "update_visibility" function).
2022-07-09 18:45:30 +00:00
ERR_CONTINUE_MSG(path_id < 0, "This should never happen!");
if (net_id == 0) {
// First time path based ID.
net_id = path_id | 0x80000000;
rep_state->set_net_id(oid, net_id | 0x80000000);
}
if (!verified) {
// The path based sync is not yet confirmed, skipping.
continue;
}
}
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
int size;
Vector<Variant> vars;
Vector<const Variant *> varp;
const List<NodePath> props = sync->get_replication_config()->get_sync_properties();
Error err = MultiplayerSynchronizer::get_state(props, node, vars, varp);
ERR_CONTINUE_MSG(err != OK, "Unable to retrieve sync state.");
err = MultiplayerAPI::encode_and_compress_variants(varp.ptrw(), varp.size(), nullptr, size);
ERR_CONTINUE_MSG(err != OK, "Unable to encode sync state.");
// TODO Handle single state above MTU.
ERR_CONTINUE_MSG(size > 3 + 4 + 4 + sync_mtu, vformat("Node states bigger then MTU will not be sent (%d > %d): %s", size, sync_mtu, node->get_path()));
if (ofs + 4 + 4 + size > sync_mtu) {
// Send what we got, and reset write.
_send_raw(packet_cache.ptr(), ofs, p_peer, false);
ofs = 3;
}
if (size) {
ofs += encode_uint32(rep_state->get_net_id(oid), &ptr[ofs]);
ofs += encode_uint32(size, &ptr[ofs]);
MultiplayerAPI::encode_and_compress_variants(varp.ptrw(), varp.size(), &ptr[ofs], size);
ofs += size;
}
}
if (ofs > 3) {
// Got some left over to send.
_send_raw(packet_cache.ptr(), ofs, p_peer, false);
}
}
Error SceneReplicationInterface::on_sync_receive(int p_from, const uint8_t *p_buffer, int p_buffer_len) {
ERR_FAIL_COND_V_MSG(p_buffer_len < 11, ERR_INVALID_DATA, "Invalid sync packet received");
uint16_t time = decode_uint16(&p_buffer[1]);
int ofs = 3;
rep_state->peer_sync_recv(p_from, time);
while (ofs + 8 < p_buffer_len) {
uint32_t net_id = decode_uint32(&p_buffer[ofs]);
ofs += 4;
uint32_t size = decode_uint32(&p_buffer[ofs]);
ofs += 4;
Node *node = nullptr;
if (net_id & 0x80000000) {
[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.
2022-07-12 21:12:42 +00:00
MultiplayerSynchronizer *sync = Object::cast_to<MultiplayerSynchronizer>(multiplayer->get_path_cache()->get_cached_object(p_from, net_id & 0x7FFFFFFF));
[Net] New replication interface, spawner and synchronizer nodes. Initial implementation of the MultiplayerReplicationInterface and its default implementation (SceneReplicationInterface). New MultiplayerSpawner node helps dealing with instantiation of scenes on remote peers (e.g. clients). It supports both custom spawns via a `_spawn_custom` virtual function, and optional auto-spawn of known scenes via a TypedArray<PackedScenes> property. New MultiplayerSynchornizer helps synchronizing states between the local and remote peers, supports both sync and spawn properties and is configured via a `SceneReplicationConfig` resource. It can also sync via path (i.e. without being spawned by a MultiplayerSpawner if both peers has it in tree, but will not send the spawn state in that case, only the sync one.
2021-10-08 12:13:06 +00:00
ERR_FAIL_COND_V(!sync || sync->get_multiplayer_authority() != p_from, ERR_UNAUTHORIZED);
node = sync->get_node(sync->get_root_path());
} else {
node = rep_state->peer_get_remote(p_from, net_id);
}
if (!node) {
// Not received yet.
ofs += size;
continue;
}
const ObjectID oid = node->get_instance_id();
if (!rep_state->update_last_node_sync(oid, time)) {
// State is too old.
ofs += size;
continue;
}
MultiplayerSynchronizer *sync = rep_state->get_synchronizer(oid);
ERR_FAIL_COND_V(!sync, ERR_BUG);
ERR_FAIL_COND_V(size > uint32_t(p_buffer_len - ofs), ERR_BUG);
const List<NodePath> props = sync->get_replication_config()->get_sync_properties();
Vector<Variant> vars;
vars.resize(props.size());
int consumed;
Error err = MultiplayerAPI::decode_and_decompress_variants(vars, &p_buffer[ofs], size, consumed);
ERR_FAIL_COND_V(err, err);
err = MultiplayerSynchronizer::set_state(props, node, vars);
ERR_FAIL_COND_V(err, err);
ofs += size;
}
return OK;
}
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