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godot/modules/multiplayer/multiplayer_synchronizer.cpp

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One Copyright Update to rule them all As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see".
2023-01-05 12:25:55 +00:00
/**************************************************************************/
/* multiplayer_synchronizer.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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. */
/**************************************************************************/
[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
#include "multiplayer_synchronizer.h"
#include "core/config/engine.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.
2022-07-12 21:12:42 +00:00
#include "scene/main/multiplayer_api.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.
2021-10-08 12:13:06 +00:00
Object *MultiplayerSynchronizer::_get_prop_target(Object *p_obj, const NodePath &p_path) {
if (p_path.get_name_count() == 0) {
return p_obj;
}
Node *node = Object::cast_to<Node>(p_obj);
ERR_FAIL_COND_V_MSG(!node || !node->has_node(p_path), nullptr, vformat("Node '%s' not found.", p_path));
return node->get_node(p_path);
}
void MultiplayerSynchronizer::_stop() {
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
#ifdef TOOLS_ENABLED
if (Engine::get_singleton()->is_editor_hint()) {
return;
}
#endif
[MP] Allow multiple synchronizers per node. The same node can now be controlled by multiple synchronizers at once. Spawn visibility is composed in OR across multiple synchronizers (i.e. if any synchronizer is visible to the peer, the object will be spawned). Synchronizers controlling spawned nodes can now have a different authority then the one spawning the node, in that case, the spawn variables for that specific synchronizer are simply ignored (other synchronizers with the same authority of the spawner will correctly synchronize variables on spawn). The SceneReplicationState class has been completly removed, since it was bloating the implementation, the state is now simply stored in the SceneReplicationInterface.
2022-09-30 20:35:56 +00:00
root_node_cache = ObjectID();
reset();
[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 = is_inside_tree() ? get_node_or_null(root_path) : nullptr;
if (node) {
[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
get_multiplayer()->object_configuration_remove(node, this);
[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
}
}
void MultiplayerSynchronizer::_start() {
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
#ifdef TOOLS_ENABLED
if (Engine::get_singleton()->is_editor_hint()) {
return;
}
#endif
[MP] Allow multiple synchronizers per node. The same node can now be controlled by multiple synchronizers at once. Spawn visibility is composed in OR across multiple synchronizers (i.e. if any synchronizer is visible to the peer, the object will be spawned). Synchronizers controlling spawned nodes can now have a different authority then the one spawning the node, in that case, the spawn variables for that specific synchronizer are simply ignored (other synchronizers with the same authority of the spawner will correctly synchronize variables on spawn). The SceneReplicationState class has been completly removed, since it was bloating the implementation, the state is now simply stored in the SceneReplicationInterface.
2022-09-30 20:35:56 +00:00
root_node_cache = ObjectID();
reset();
[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 = is_inside_tree() ? get_node_or_null(root_path) : nullptr;
if (node) {
[MP] Allow multiple synchronizers per node. The same node can now be controlled by multiple synchronizers at once. Spawn visibility is composed in OR across multiple synchronizers (i.e. if any synchronizer is visible to the peer, the object will be spawned). Synchronizers controlling spawned nodes can now have a different authority then the one spawning the node, in that case, the spawn variables for that specific synchronizer are simply ignored (other synchronizers with the same authority of the spawner will correctly synchronize variables on spawn). The SceneReplicationState class has been completly removed, since it was bloating the implementation, the state is now simply stored in the SceneReplicationInterface.
2022-09-30 20:35:56 +00:00
root_node_cache = node->get_instance_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
get_multiplayer()->object_configuration_add(node, this);
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
_update_process();
}
}
void MultiplayerSynchronizer::_update_process() {
#ifdef TOOLS_ENABLED
if (Engine::get_singleton()->is_editor_hint()) {
return;
}
#endif
Node *node = is_inside_tree() ? get_node_or_null(root_path) : nullptr;
if (!node) {
return;
}
set_process_internal(false);
set_physics_process_internal(false);
if (!visibility_filters.size()) {
return;
}
switch (visibility_update_mode) {
case VISIBILITY_PROCESS_IDLE:
set_process_internal(true);
break;
case VISIBILITY_PROCESS_PHYSICS:
set_physics_process_internal(true);
break;
case VISIBILITY_PROCESS_NONE:
break;
[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
}
}
[MP] Allow multiple synchronizers per node. The same node can now be controlled by multiple synchronizers at once. Spawn visibility is composed in OR across multiple synchronizers (i.e. if any synchronizer is visible to the peer, the object will be spawned). Synchronizers controlling spawned nodes can now have a different authority then the one spawning the node, in that case, the spawn variables for that specific synchronizer are simply ignored (other synchronizers with the same authority of the spawner will correctly synchronize variables on spawn). The SceneReplicationState class has been completly removed, since it was bloating the implementation, the state is now simply stored in the SceneReplicationInterface.
2022-09-30 20:35:56 +00:00
Node *MultiplayerSynchronizer::get_root_node() {
return root_node_cache.is_valid() ? Object::cast_to<Node>(ObjectDB::get_instance(root_node_cache)) : nullptr;
}
void MultiplayerSynchronizer::reset() {
net_id = 0;
[MP] Implement "watched" properties. Checked at "delta_interval" (default = every frame), synchronized (reliably) if changes are detected.
2023-03-28 07:30:58 +00:00
last_sync_usec = 0;
[MP] Allow multiple synchronizers per node. The same node can now be controlled by multiple synchronizers at once. Spawn visibility is composed in OR across multiple synchronizers (i.e. if any synchronizer is visible to the peer, the object will be spawned). Synchronizers controlling spawned nodes can now have a different authority then the one spawning the node, in that case, the spawn variables for that specific synchronizer are simply ignored (other synchronizers with the same authority of the spawner will correctly synchronize variables on spawn). The SceneReplicationState class has been completly removed, since it was bloating the implementation, the state is now simply stored in the SceneReplicationInterface.
2022-09-30 20:35:56 +00:00
last_inbound_sync = 0;
[MP] Fix synchronizer init and reset Fix set_multiplayer_authority not resetting the synchronizer. Fix the reset function not clearing the watchers state. Skip wrap around check for the first sync packet after reset.
2023-10-11 16:55:32 +00:00
last_watch_usec = 0;
sync_started = false;
watchers.clear();
[MP] Allow multiple synchronizers per node. The same node can now be controlled by multiple synchronizers at once. Spawn visibility is composed in OR across multiple synchronizers (i.e. if any synchronizer is visible to the peer, the object will be spawned). Synchronizers controlling spawned nodes can now have a different authority then the one spawning the node, in that case, the spawn variables for that specific synchronizer are simply ignored (other synchronizers with the same authority of the spawner will correctly synchronize variables on spawn). The SceneReplicationState class has been completly removed, since it was bloating the implementation, the state is now simply stored in the SceneReplicationInterface.
2022-09-30 20:35:56 +00:00
}
uint32_t MultiplayerSynchronizer::get_net_id() const {
return net_id;
}
void MultiplayerSynchronizer::set_net_id(uint32_t p_net_id) {
net_id = p_net_id;
}
[MP] Implement "watched" properties. Checked at "delta_interval" (default = every frame), synchronized (reliably) if changes are detected.
2023-03-28 07:30:58 +00:00
bool MultiplayerSynchronizer::update_outbound_sync_time(uint64_t p_usec) {
if (last_sync_usec == p_usec) {
// last_sync_usec has been updated in this frame.
Fix MultiplayerSynchronizer::update_outbound_sync_time when replication_interval is not 0
2022-10-23 06:01:51 +00:00
return true;
}
[MP] Implement "watched" properties. Checked at "delta_interval" (default = every frame), synchronized (reliably) if changes are detected.
2023-03-28 07:30:58 +00:00
if (p_usec < last_sync_usec + sync_interval_usec) {
// Too soon, should skip this synchronization frame.
return false;
[MP] Allow multiple synchronizers per node. The same node can now be controlled by multiple synchronizers at once. Spawn visibility is composed in OR across multiple synchronizers (i.e. if any synchronizer is visible to the peer, the object will be spawned). Synchronizers controlling spawned nodes can now have a different authority then the one spawning the node, in that case, the spawn variables for that specific synchronizer are simply ignored (other synchronizers with the same authority of the spawner will correctly synchronize variables on spawn). The SceneReplicationState class has been completly removed, since it was bloating the implementation, the state is now simply stored in the SceneReplicationInterface.
2022-09-30 20:35:56 +00:00
}
[MP] Implement "watched" properties. Checked at "delta_interval" (default = every frame), synchronized (reliably) if changes are detected.
2023-03-28 07:30:58 +00:00
last_sync_usec = p_usec;
return true;
[MP] Allow multiple synchronizers per node. The same node can now be controlled by multiple synchronizers at once. Spawn visibility is composed in OR across multiple synchronizers (i.e. if any synchronizer is visible to the peer, the object will be spawned). Synchronizers controlling spawned nodes can now have a different authority then the one spawning the node, in that case, the spawn variables for that specific synchronizer are simply ignored (other synchronizers with the same authority of the spawner will correctly synchronize variables on spawn). The SceneReplicationState class has been completly removed, since it was bloating the implementation, the state is now simply stored in the SceneReplicationInterface.
2022-09-30 20:35:56 +00:00
}
bool MultiplayerSynchronizer::update_inbound_sync_time(uint16_t p_network_time) {
[MP] Fix synchronizer init and reset Fix set_multiplayer_authority not resetting the synchronizer. Fix the reset function not clearing the watchers state. Skip wrap around check for the first sync packet after reset.
2023-10-11 16:55:32 +00:00
if (!sync_started) {
sync_started = true;
} else if (p_network_time <= last_inbound_sync && last_inbound_sync - p_network_time < 32767) {
[MP] Allow multiple synchronizers per node. The same node can now be controlled by multiple synchronizers at once. Spawn visibility is composed in OR across multiple synchronizers (i.e. if any synchronizer is visible to the peer, the object will be spawned). Synchronizers controlling spawned nodes can now have a different authority then the one spawning the node, in that case, the spawn variables for that specific synchronizer are simply ignored (other synchronizers with the same authority of the spawner will correctly synchronize variables on spawn). The SceneReplicationState class has been completly removed, since it was bloating the implementation, the state is now simply stored in the SceneReplicationInterface.
2022-09-30 20:35:56 +00:00
return false;
}
last_inbound_sync = p_network_time;
return true;
}
Change return type of `get_configuration_warnings` to `PackedStringArray`
2022-09-19 15:43:15 +00:00
PackedStringArray MultiplayerSynchronizer::get_configuration_warnings() const {
PackedStringArray warnings = Node::get_configuration_warnings();
[MP] Add warnings to spawner and synchronizer. MultiplayerSpawner: - When spawn_path is invalid. - When the auto spawn list is empty and _spawn_custom is not overridden. Note: We remove the warning for placeholder scripts since there's no way of knowing if they have a certain method. MultiplayerSynchronizer: - When root_path is invalid.
2022-09-16 20:42:05 +00:00
if (root_path.is_empty() || !has_node(root_path)) {
warnings.push_back(RTR("A valid NodePath must be set in the \"Root Path\" property in order for MultiplayerSynchronizer to be able to synchronize properties."));
}
return warnings;
}
[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 MultiplayerSynchronizer::get_state(const List<NodePath> &p_properties, Object *p_obj, Vector<Variant> &r_variant, Vector<const Variant *> &r_variant_ptrs) {
[Modules] Replace `ERR_FAIL_COND` with `ERR_FAIL_NULL` where applicable
2023-09-09 15:40:07 +00:00
ERR_FAIL_NULL_V(p_obj, ERR_INVALID_PARAMETER);
[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
r_variant.resize(p_properties.size());
r_variant_ptrs.resize(r_variant.size());
int i = 0;
for (const NodePath &prop : p_properties) {
bool valid = false;
const Object *obj = _get_prop_target(p_obj, prop);
[Modules] Replace `ERR_FAIL_COND` with `ERR_FAIL_NULL` where applicable
2023-09-09 15:40:07 +00:00
ERR_FAIL_NULL_V(obj, FAILED);
[MP] Use get/set indexed in MultiplayerSynchronizer Allows synchronizing (sub-)resource properties, transform components, etc. by using subnames. As an example, `.:transform.x` will only synchronize the `x` component of the root transform instead of the whole transform. This can also be used to synchronize a resource own properties, as long as they are synchronizable (i.e. the property itself is not an Object, RID, or Callable).
2023-07-14 18:37:26 +00:00
r_variant.write[i] = obj->get_indexed(prop.get_subnames(), &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
r_variant_ptrs.write[i] = &r_variant[i];
ERR_FAIL_COND_V_MSG(!valid, ERR_INVALID_DATA, vformat("Property '%s' not found.", prop));
i++;
}
return OK;
}
Error MultiplayerSynchronizer::set_state(const List<NodePath> &p_properties, Object *p_obj, const Vector<Variant> &p_state) {
[Modules] Replace `ERR_FAIL_COND` with `ERR_FAIL_NULL` where applicable
2023-09-09 15:40:07 +00:00
ERR_FAIL_NULL_V(p_obj, ERR_INVALID_PARAMETER);
[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 i = 0;
for (const NodePath &prop : p_properties) {
Object *obj = _get_prop_target(p_obj, prop);
[Modules] Replace `ERR_FAIL_COND` with `ERR_FAIL_NULL` where applicable
2023-09-09 15:40:07 +00:00
ERR_FAIL_NULL_V(obj, FAILED);
[MP] Use get/set indexed in MultiplayerSynchronizer Allows synchronizing (sub-)resource properties, transform components, etc. by using subnames. As an example, `.:transform.x` will only synchronize the `x` component of the root transform instead of the whole transform. This can also be used to synchronize a resource own properties, as long as they are synchronizable (i.e. the property itself is not an Object, RID, or Callable).
2023-07-14 18:37:26 +00:00
obj->set_indexed(prop.get_subnames(), p_state[i]);
[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
i += 1;
}
return OK;
}
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
bool MultiplayerSynchronizer::is_visibility_public() const {
return peer_visibility.has(0);
}
void MultiplayerSynchronizer::set_visibility_public(bool p_visible) {
set_visibility_for(0, p_visible);
}
bool MultiplayerSynchronizer::is_visible_to(int p_peer) {
if (visibility_filters.size()) {
Variant arg = p_peer;
const Variant *argv[1] = { &arg };
for (Callable filter : visibility_filters) {
Variant ret;
Callable::CallError err;
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
filter.callp(argv, 1, ret, 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).
2022-07-09 18:45:30 +00:00
ERR_FAIL_COND_V(err.error != Callable::CallError::CALL_OK || ret.get_type() != Variant::BOOL, false);
if (!ret.operator bool()) {
return false;
}
}
}
return peer_visibility.has(0) || peer_visibility.has(p_peer);
}
void MultiplayerSynchronizer::add_visibility_filter(Callable p_callback) {
visibility_filters.insert(p_callback);
_update_process();
}
void MultiplayerSynchronizer::remove_visibility_filter(Callable p_callback) {
visibility_filters.erase(p_callback);
_update_process();
}
void MultiplayerSynchronizer::set_visibility_for(int p_peer, bool p_visible) {
if (peer_visibility.has(p_peer) == p_visible) {
return;
}
if (p_visible) {
peer_visibility.insert(p_peer);
} else {
peer_visibility.erase(p_peer);
}
update_visibility(p_peer);
}
bool MultiplayerSynchronizer::get_visibility_for(int p_peer) const {
return peer_visibility.has(p_peer);
}
void MultiplayerSynchronizer::set_visibility_update_mode(VisibilityUpdateMode p_mode) {
visibility_update_mode = p_mode;
_update_process();
}
MultiplayerSynchronizer::VisibilityUpdateMode MultiplayerSynchronizer::get_visibility_update_mode() const {
return visibility_update_mode;
}
[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
void MultiplayerSynchronizer::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_root_path", "path"), &MultiplayerSynchronizer::set_root_path);
ClassDB::bind_method(D_METHOD("get_root_path"), &MultiplayerSynchronizer::get_root_path);
ClassDB::bind_method(D_METHOD("set_replication_interval", "milliseconds"), &MultiplayerSynchronizer::set_replication_interval);
ClassDB::bind_method(D_METHOD("get_replication_interval"), &MultiplayerSynchronizer::get_replication_interval);
[MP] Implement "watched" properties. Checked at "delta_interval" (default = every frame), synchronized (reliably) if changes are detected.
2023-03-28 07:30:58 +00:00
ClassDB::bind_method(D_METHOD("set_delta_interval", "milliseconds"), &MultiplayerSynchronizer::set_delta_interval);
ClassDB::bind_method(D_METHOD("get_delta_interval"), &MultiplayerSynchronizer::get_delta_interval);
[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
ClassDB::bind_method(D_METHOD("set_replication_config", "config"), &MultiplayerSynchronizer::set_replication_config);
ClassDB::bind_method(D_METHOD("get_replication_config"), &MultiplayerSynchronizer::get_replication_config);
Add suffixes to all nodes and resources
2022-05-20 05:24:41 +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
ClassDB::bind_method(D_METHOD("set_visibility_update_mode", "mode"), &MultiplayerSynchronizer::set_visibility_update_mode);
ClassDB::bind_method(D_METHOD("get_visibility_update_mode"), &MultiplayerSynchronizer::get_visibility_update_mode);
ClassDB::bind_method(D_METHOD("update_visibility", "for_peer"), &MultiplayerSynchronizer::update_visibility, DEFVAL(0));
ClassDB::bind_method(D_METHOD("set_visibility_public", "visible"), &MultiplayerSynchronizer::set_visibility_public);
ClassDB::bind_method(D_METHOD("is_visibility_public"), &MultiplayerSynchronizer::is_visibility_public);
ClassDB::bind_method(D_METHOD("add_visibility_filter", "filter"), &MultiplayerSynchronizer::add_visibility_filter);
ClassDB::bind_method(D_METHOD("remove_visibility_filter", "filter"), &MultiplayerSynchronizer::remove_visibility_filter);
ClassDB::bind_method(D_METHOD("set_visibility_for", "peer", "visible"), &MultiplayerSynchronizer::set_visibility_for);
ClassDB::bind_method(D_METHOD("get_visibility_for", "peer"), &MultiplayerSynchronizer::get_visibility_for);
Add suffixes to all nodes and resources
2022-05-20 05:24:41 +00:00
ADD_PROPERTY(PropertyInfo(Variant::NODE_PATH, "root_path"), "set_root_path", "get_root_path");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "replication_interval", PROPERTY_HINT_RANGE, "0,5,0.001,suffix:s"), "set_replication_interval", "get_replication_interval");
[MP] Implement "watched" properties. Checked at "delta_interval" (default = every frame), synchronized (reliably) if changes are detected.
2023-03-28 07:30:58 +00:00
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "delta_interval", PROPERTY_HINT_RANGE, "0,5,0.001,suffix:s"), "set_delta_interval", "get_delta_interval");
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
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "replication_config", PROPERTY_HINT_RESOURCE_TYPE, "SceneReplicationConfig", PROPERTY_USAGE_NO_EDITOR), "set_replication_config", "get_replication_config");
ADD_PROPERTY(PropertyInfo(Variant::INT, "visibility_update_mode", PROPERTY_HINT_ENUM, "Idle,Physics,None"), "set_visibility_update_mode", "get_visibility_update_mode");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "public_visibility"), "set_visibility_public", "is_visibility_public");
BIND_ENUM_CONSTANT(VISIBILITY_PROCESS_IDLE);
BIND_ENUM_CONSTANT(VISIBILITY_PROCESS_PHYSICS);
BIND_ENUM_CONSTANT(VISIBILITY_PROCESS_NONE);
[MP] Add a "synchronized" signal to MultiplayerSynchronized. Emitted upon receiving a valid sync packet after setting the variables state.
2023-02-20 13:46:39 +00:00
ADD_SIGNAL(MethodInfo("synchronized"));
[MP] Implement "watched" properties. Checked at "delta_interval" (default = every frame), synchronized (reliably) if changes are detected.
2023-03-28 07:30:58 +00:00
ADD_SIGNAL(MethodInfo("delta_synchronized"));
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
ADD_SIGNAL(MethodInfo("visibility_changed", PropertyInfo(Variant::INT, "for_peer")));
[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
}
void MultiplayerSynchronizer::_notification(int p_what) {
#ifdef TOOLS_ENABLED
if (Engine::get_singleton()->is_editor_hint()) {
return;
}
#endif
if (root_path.is_empty()) {
return;
}
Use `switch` consistently in `_notification` (`scene` folder)
2022-02-15 17:06:48 +00:00
switch (p_what) {
case NOTIFICATION_ENTER_TREE: {
_start();
} break;
case NOTIFICATION_EXIT_TREE: {
_stop();
} break;
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
case NOTIFICATION_INTERNAL_PROCESS:
case NOTIFICATION_INTERNAL_PHYSICS_PROCESS: {
update_visibility(0);
} break;
[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
}
}
void MultiplayerSynchronizer::set_replication_interval(double p_interval) {
ERR_FAIL_COND_MSG(p_interval < 0, "Interval must be greater or equal to 0 (where 0 means default)");
[MP] Implement "watched" properties. Checked at "delta_interval" (default = every frame), synchronized (reliably) if changes are detected.
2023-03-28 07:30:58 +00:00
sync_interval_usec = uint64_t(p_interval * 1000 * 1000);
[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
}
double MultiplayerSynchronizer::get_replication_interval() const {
[MP] Implement "watched" properties. Checked at "delta_interval" (default = every frame), synchronized (reliably) if changes are detected.
2023-03-28 07:30:58 +00:00
return double(sync_interval_usec) / 1000.0 / 1000.0;
}
void MultiplayerSynchronizer::set_delta_interval(double p_interval) {
ERR_FAIL_COND_MSG(p_interval < 0, "Interval must be greater or equal to 0 (where 0 means default)");
delta_interval_usec = uint64_t(p_interval * 1000 * 1000);
}
double MultiplayerSynchronizer::get_delta_interval() const {
return double(delta_interval_usec) / 1000.0 / 1000.0;
[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
}
void MultiplayerSynchronizer::set_replication_config(Ref<SceneReplicationConfig> p_config) {
replication_config = p_config;
}
Ref<SceneReplicationConfig> MultiplayerSynchronizer::get_replication_config() {
return 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
void MultiplayerSynchronizer::update_visibility(int p_for_peer) {
#ifdef TOOLS_ENABLED
if (Engine::get_singleton()->is_editor_hint()) {
return;
}
#endif
Node *node = is_inside_tree() ? get_node_or_null(root_path) : nullptr;
if (node && get_multiplayer()->has_multiplayer_peer() && is_multiplayer_authority()) {
emit_signal(SNAME("visibility_changed"), p_for_peer);
}
}
[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
void MultiplayerSynchronizer::set_root_path(const NodePath &p_path) {
[MP] Fix synchronizer init and reset Fix set_multiplayer_authority not resetting the synchronizer. Fix the reset function not clearing the watchers state. Skip wrap around check for the first sync packet after reset.
2023-10-11 16:55:32 +00:00
if (p_path == root_path) {
return;
}
[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
_stop();
root_path = p_path;
_start();
}
NodePath MultiplayerSynchronizer::get_root_path() const {
return root_path;
}
void MultiplayerSynchronizer::set_multiplayer_authority(int p_peer_id, bool p_recursive) {
[MP] Fix synchronizer init and reset Fix set_multiplayer_authority not resetting the synchronizer. Fix the reset function not clearing the watchers state. Skip wrap around check for the first sync packet after reset.
2023-10-11 16:55:32 +00:00
if (get_multiplayer_authority() == p_peer_id) {
[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;
}
[MP] Fix synchronizer init and reset Fix set_multiplayer_authority not resetting the synchronizer. Fix the reset function not clearing the watchers state. Skip wrap around check for the first sync packet after reset.
2023-10-11 16:55:32 +00:00
_stop();
[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::set_multiplayer_authority(p_peer_id, p_recursive);
[MP] Fix synchronizer init and reset Fix set_multiplayer_authority not resetting the synchronizer. Fix the reset function not clearing the watchers state. Skip wrap around check for the first sync packet after reset.
2023-10-11 16:55:32 +00:00
_start();
[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
[MP] Implement "watched" properties. Checked at "delta_interval" (default = every frame), synchronized (reliably) if changes are detected.
2023-03-28 07:30:58 +00:00
Error MultiplayerSynchronizer::_watch_changes(uint64_t p_usec) {
ERR_FAIL_COND_V(replication_config.is_null(), FAILED);
const List<NodePath> props = replication_config->get_watch_properties();
if (props.size() != watchers.size()) {
watchers.resize(props.size());
}
if (props.size() == 0) {
return OK;
}
Node *node = get_root_node();
[Modules] Replace `ERR_FAIL_COND` with `ERR_FAIL_NULL` where applicable
2023-09-09 15:40:07 +00:00
ERR_FAIL_NULL_V(node, FAILED);
[MP] Implement "watched" properties. Checked at "delta_interval" (default = every frame), synchronized (reliably) if changes are detected.
2023-03-28 07:30:58 +00:00
int idx = -1;
Watcher *ptr = watchers.ptrw();
for (const NodePath &prop : props) {
idx++;
bool valid = false;
const Object *obj = _get_prop_target(node, prop);
ERR_CONTINUE_MSG(!obj, vformat("Node not found for property '%s'.", prop));
[MP] Fix "on change" indexed properties Watchers were still using Object::get instead of Object::get_indexed.
2023-10-13 14:43:30 +00:00
Variant v = obj->get_indexed(prop.get_subnames(), &valid);
[MP] Implement "watched" properties. Checked at "delta_interval" (default = every frame), synchronized (reliably) if changes are detected.
2023-03-28 07:30:58 +00:00
ERR_CONTINUE_MSG(!valid, vformat("Property '%s' not found.", prop));
Watcher &w = ptr[idx];
if (w.prop != prop) {
w.prop = prop;
w.value = v.duplicate(true);
w.last_change_usec = p_usec;
} else if (!w.value.hash_compare(v)) {
w.value = v.duplicate(true);
w.last_change_usec = p_usec;
}
}
return OK;
}
List<Variant> MultiplayerSynchronizer::get_delta_state(uint64_t p_cur_usec, uint64_t p_last_usec, uint64_t &r_indexes) {
r_indexes = 0;
List<Variant> out;
if (last_watch_usec == p_cur_usec) {
// We already watched for changes in this frame.
} else if (p_cur_usec < p_last_usec + delta_interval_usec) {
// Too soon skip delta synchronization.
return out;
} else {
// Watch for changes.
Error err = _watch_changes(p_cur_usec);
ERR_FAIL_COND_V(err != OK, out);
last_watch_usec = p_cur_usec;
}
const Watcher *ptr = watchers.size() ? watchers.ptr() : nullptr;
for (int i = 0; i < watchers.size(); i++) {
const Watcher &w = ptr[i];
if (w.last_change_usec <= p_last_usec) {
continue;
}
out.push_back(w.value);
r_indexes |= 1ULL << i;
}
return out;
}
List<NodePath> MultiplayerSynchronizer::get_delta_properties(uint64_t p_indexes) {
List<NodePath> out;
ERR_FAIL_COND_V(replication_config.is_null(), out);
const List<NodePath> watch_props = replication_config->get_watch_properties();
int idx = 0;
for (const NodePath &prop : watch_props) {
[MP] Fix delta variables index decoding.
2023-06-26 10:33:30 +00:00
if ((p_indexes & (1ULL << idx++)) == 0) {
[MP] Implement "watched" properties. Checked at "delta_interval" (default = every frame), synchronized (reliably) if changes are detected.
2023-03-28 07:30:58 +00:00
continue;
}
out.push_back(prop);
}
return out;
}
[MP] Optimize internal SceneReplicationConfig access Use direct pointer addressing to avoid unnecessary refs/unrefs
2023-10-02 08:56:21 +00:00
SceneReplicationConfig *MultiplayerSynchronizer::get_replication_config_ptr() const {
return replication_config.ptr();
}
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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MultiplayerSynchronizer::MultiplayerSynchronizer() {
// Publicly visible by default.
peer_visibility.insert(0);
}