azalea_client/plugins/
disconnect.rs1use azalea_chat::FormattedText;
4use azalea_entity::{EntityBundle, InLoadedChunk, LocalEntity, metadata::PlayerMetadataBundle};
5use azalea_world::MinecraftEntityId;
6use bevy_app::{App, Plugin, PostUpdate};
7use bevy_ecs::prelude::*;
8use derive_more::Deref;
9use tracing::info;
10
11use super::login::IsAuthenticated;
12use crate::{
13 chat_signing, client::JoinedClientBundle, connection::RawConnection, loading::HasClientLoaded,
14 local_player::InstanceHolder,
15};
16
17pub struct DisconnectPlugin;
18impl Plugin for DisconnectPlugin {
19 fn build(&self, app: &mut App) {
20 app.add_event::<DisconnectEvent>().add_systems(
21 PostUpdate,
22 (
23 update_read_packets_task_running_component,
24 remove_components_from_disconnected_players,
25 disconnect_on_connection_dead,
30 )
31 .chain(),
32 );
33 }
34}
35
36#[derive(Event)]
47pub struct DisconnectEvent {
48 pub entity: Entity,
49 pub reason: Option<FormattedText>,
50}
51
52#[derive(Bundle)]
57pub struct RemoveOnDisconnectBundle {
58 pub joined_client: JoinedClientBundle,
59 pub entity: EntityBundle,
60 pub minecraft_entity_id: MinecraftEntityId,
61 pub instance_holder: InstanceHolder,
62 pub player_metadata: PlayerMetadataBundle,
63 pub in_loaded_chunk: InLoadedChunk,
64 pub raw_connection: RawConnection,
66 pub is_connection_alive: IsConnectionAlive,
68 pub chat_signing_session: chat_signing::ChatSigningSession,
70 pub is_authenticated: IsAuthenticated,
72 pub has_client_loaded: HasClientLoaded,
74}
75
76pub fn remove_components_from_disconnected_players(
79 mut commands: Commands,
80 mut events: EventReader<DisconnectEvent>,
81 mut loaded_by_query: Query<&mut azalea_entity::LoadedBy>,
82) {
83 for DisconnectEvent { entity, reason } in events.read() {
84 info!(
85 "A client {entity:?} was disconnected{}",
86 if let Some(reason) = reason {
87 format!(": {reason}")
88 } else {
89 "".to_string()
90 }
91 );
92 commands
93 .entity(*entity)
94 .remove::<RemoveOnDisconnectBundle>();
95 for mut loaded_by in &mut loaded_by_query.iter_mut() {
102 loaded_by.remove(entity);
103 }
104 }
105}
106
107#[derive(Component, Clone, Copy, Debug, Deref)]
108pub struct IsConnectionAlive(bool);
109
110fn update_read_packets_task_running_component(
111 query: Query<(Entity, &RawConnection)>,
112 mut commands: Commands,
113) {
114 for (entity, raw_connection) in &query {
115 let running = raw_connection.is_alive();
116 commands.entity(entity).insert(IsConnectionAlive(running));
117 }
118}
119
120#[allow(clippy::type_complexity)]
121fn disconnect_on_connection_dead(
122 query: Query<(Entity, &IsConnectionAlive), (Changed<IsConnectionAlive>, With<LocalEntity>)>,
123 mut disconnect_events: EventWriter<DisconnectEvent>,
124) {
125 for (entity, &is_connection_alive) in &query {
126 if !*is_connection_alive {
127 disconnect_events.write(DisconnectEvent {
128 entity,
129 reason: None,
130 });
131 }
132 }
133}