Add ComponentId to all component-related contexts

CHANGELOG.md

@@ -9,6 +9,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [0.28.4] - 2024-10-15
 
+### Added
+
+- `ComponentId` to all component-related contexts.
+
 ### Fixed
 
 - Synchronize server events with init messages properly when `ServerTick` is not updated every app tick.

src/client.rs

@@ -338,10 +338,11 @@ fn apply_init_components(
         let mut components_len = 0u32;
         while cursor.position() < end_pos {
             let fns_id = DefaultOptions::new().deserialize_from(&mut *cursor)?;
-            let (component_fns, rule_fns) = params.registry.get(fns_id);
+            let (component_id, component_fns, rule_fns) = params.registry.get(fns_id);
             match components_kind {
                 ComponentsKind::Insert => {
-                    let mut ctx = WriteCtx::new(&mut commands, params.entity_map, message_tick);
+                    let mut ctx =
+                        WriteCtx::new(&mut commands, params.entity_map, component_id, message_tick);
 
                     // SAFETY: `rule_fns` and `component_fns` were created for the same type.
                     unsafe {
@@ -355,7 +356,11 @@ fn apply_init_components(
                     }
                 }
                 ComponentsKind::Removal => {
-                    let mut ctx = RemoveCtx::new(&mut commands, message_tick);
+                    let mut ctx = RemoveCtx {
+                        commands: &mut commands,
+                        message_tick,
+                        component_id,
+                    };
                     component_fns.remove(&mut ctx, params.entity_markers, &mut client_entity);
                 }
             }
@@ -465,8 +470,9 @@ fn apply_update_components(
         let mut components_count = 0u32;
         while cursor.position() < end_pos {
             let fns_id = DefaultOptions::new().deserialize_from(&mut *cursor)?;
-            let (component_fns, rule_fns) = params.registry.get(fns_id);
-            let mut ctx = WriteCtx::new(&mut commands, params.entity_map, message_tick);
+            let (component_id, component_fns, rule_fns) = params.registry.get(fns_id);
+            let mut ctx =
+                WriteCtx::new(&mut commands, params.entity_map, component_id, message_tick);
 
             // SAFETY: `rule_fns` and `component_fns` were created for the same type.
             unsafe {

src/core/ctx.rs

@@ -1,4 +1,4 @@
-use bevy::{prelude::*, reflect::TypeRegistry};
+use bevy::{ecs::component::ComponentId, prelude::*, reflect::TypeRegistry};
 
 use super::{replicon_tick::RepliconTick, server_entity_map::ServerEntityMap, Replicated};
 
@@ -7,6 +7,9 @@ use super::{replicon_tick::RepliconTick, server_entity_map::ServerEntityMap, Rep
 pub struct SerializeCtx {
     /// Current tick.
     pub server_tick: RepliconTick,
+
+    /// ID of the serializing component.
+    pub component_id: ComponentId,
 }
 
 /// Replication context for writing and deserialization.
@@ -18,6 +21,9 @@ pub struct WriteCtx<'a, 'w, 's> {
     /// Maps server entities to client entities and vice versa.
     pub entity_map: &'a mut ServerEntityMap,
 
+    /// ID of the writing component.
+    pub component_id: ComponentId,
+
     /// Tick for the currently processing message.
     pub message_tick: RepliconTick,
 
@@ -29,11 +35,13 @@ impl<'a, 'w, 's> WriteCtx<'a, 'w, 's> {
     pub(crate) fn new(
         commands: &'a mut Commands<'w, 's>,
         entity_map: &'a mut ServerEntityMap,
+        component_id: ComponentId,
         message_tick: RepliconTick,
     ) -> Self {
         Self {
             commands,
             entity_map,
+            component_id,
             message_tick,
             ignore_mapping: false,
         }
@@ -59,15 +67,9 @@ pub struct RemoveCtx<'a, 'w, 's> {
 
     /// Tick for the currently processing message.
     pub message_tick: RepliconTick,
-}
 
-impl<'a, 'w, 's> RemoveCtx<'a, 'w, 's> {
-    pub(crate) fn new(commands: &'a mut Commands<'w, 's>, message_tick: RepliconTick) -> Self {
-        Self {
-            commands,
-            message_tick,
-        }
-    }
+    /// ID of the removing component.
+    pub component_id: ComponentId,
 }
 
 /// Replication context for despawn.

src/core/replication_registry.rs

@@ -135,16 +135,16 @@ impl ReplicationRegistry {
     /// Returns associates functions.
     ///
     /// See also [`Self::register_rule_fns`].
-    pub(crate) fn get(&self, fns_id: FnsId) -> (&ComponentFns, &UntypedRuleFns) {
+    pub(crate) fn get(&self, fns_id: FnsId) -> (ComponentId, &ComponentFns, &UntypedRuleFns) {
         let (rule_fns, index) = self
             .rules
             .get(fns_id.0)
             .expect("serde function IDs should be obtained from the same instance");
 
         // SAFETY: index obtained from `rules` is always valid.
-        let (_, command_fns) = unsafe { self.components.get_unchecked(*index) };
+        let (component_id, command_fns) = unsafe { self.components.get_unchecked(*index) };
 
-        (command_fns, rule_fns)
+        (*component_id, command_fns, rule_fns)
     }
 }
 

src/core/replication_registry/test_fns.rs

@@ -91,9 +91,12 @@ pub trait TestFnsEntityExt {
 impl TestFnsEntityExt for EntityWorldMut<'_> {
     fn serialize(&mut self, fns_info: FnsInfo, server_tick: RepliconTick) -> Vec<u8> {
         let registry = self.world().resource::<ReplicationRegistry>();
-        let (component_fns, rule_fns) = registry.get(fns_info.fns_id());
+        let (component_id, component_fns, rule_fns) = registry.get(fns_info.fns_id());
         let mut cursor = Cursor::default();
-        let ctx = SerializeCtx { server_tick };
+        let ctx = SerializeCtx {
+            server_tick,
+            component_id,
+        };
         let ptr = self.get_by_id(fns_info.component_id()).unwrap_or_else(|| {
             let components = self.world().components();
             let component_name = components
@@ -133,9 +136,10 @@ impl TestFnsEntityExt for EntityWorldMut<'_> {
                     let mut commands =
                         Commands::new_from_entities(&mut queue, world_cell.entities());
 
-                    let (component_fns, rule_fns) = registry.get(fns_info.fns_id());
+                    let (component_id, component_fns, rule_fns) = registry.get(fns_info.fns_id());
                     let mut cursor = Cursor::new(data);
-                    let mut ctx = WriteCtx::new(&mut commands, &mut entity_map, message_tick);
+                    let mut ctx =
+                        WriteCtx::new(&mut commands, &mut entity_map, component_id, message_tick);
 
                     unsafe {
                         component_fns
@@ -172,8 +176,12 @@ impl TestFnsEntityExt for EntityWorldMut<'_> {
                 let mut queue = CommandQueue::default();
                 let mut commands = Commands::new_from_entities(&mut queue, world_cell.entities());
 
-                let (component_fns, _) = registry.get(fns_info.fns_id());
-                let mut ctx = RemoveCtx::new(&mut commands, message_tick);
+                let (component_id, component_fns, _) = registry.get(fns_info.fns_id());
+                let mut ctx = RemoveCtx {
+                    commands: &mut commands,
+                    message_tick,
+                    component_id,
+                };
 
                 component_fns.remove(&mut ctx, &entity_markers, &mut entity);
 

src/server.rs

@@ -406,8 +406,12 @@ fn collect_changes(
                     )
                 };
 
-                let (component_fns, rule_fns) = registry.get(replicated_component.fns_id);
-                let ctx = SerializeCtx { server_tick };
+                let (component_id, component_fns, rule_fns) =
+                    registry.get(replicated_component.fns_id);
+                let ctx = SerializeCtx {
+                    server_tick,
+                    component_id,
+                };
                 let mut shared_bytes = None;
                 for (init_message, update_message, client) in messages.iter_mut_with_clients() {
                     let visibility = client.visibility().cached_visibility();