Add some semblance of match end

rc_core/src/persist/user/traits.rs

@@ -251,6 +251,7 @@ pub struct PlayerLobbyDescriptor {
     pub group: Option<i32>,
 }
 
+#[derive(Clone)]
 pub struct PlayerDescriptor {
     pub user_id: i32,
     pub player_id: u8,

rc_multiplayer/src/events/client_unregister.rs

@@ -0,0 +1,30 @@
+pub struct ClientUnregisterer {
+    msg_router: tokio::sync::mpsc::Sender<crate::matches::GameMessage>,
+}
+
+pub(super) fn handler(init_ctx: &crate::InitConfig) -> crate::handlers::Dataless<ClientUnregisterer> {
+    crate::handlers::Dataless::new(ClientUnregisterer::new(init_ctx))
+}
+
+impl ClientUnregisterer {
+    fn new(init_ctx: &crate::InitConfig) -> Self {
+        Self {
+            msg_router: init_ctx.matches_chann.clone(),
+        }
+    }
+}
+
+#[async_trait::async_trait]
+impl crate::handlers::DatalessEventCodeHandler for ClientUnregisterer {
+    const CODE: rlnl::event_code::NetworkEvent = rlnl::event_code::NetworkEvent::ClientUnregistered;
+
+    async fn handle(&self, _peer: &std::sync::Arc<literustlib_server::Connection<crate::PacketData>>, user: &crate::UserData, _sender: &std::sync::Arc<literustlib_server::DataSender<crate::PacketData>>) {
+        if let Some(user_info) = user.user().await {
+            super::log_channel_send_failure(self.msg_router.send(crate::matches::GameMessage::EndConnection {
+                user_id: user_info.user_id(),
+            }).await);
+        } else {
+            log::error!("Failed to handle sync loading request for unknown user");
+        }
+    }
+}

rc_multiplayer/src/events/mod.rs

@@ -7,6 +7,7 @@ mod loading_done;
 //mod player_input;
 mod spot_player;
 mod kill_player;
+mod client_unregister;
 
 pub async fn handler(init_ctx: &crate::InitConfig) -> crate::handler::LnlEventHandler {
     crate::handler::LnlEventHandler::new(init_ctx.users.clone(), crate::vehicle_motion::handler(init_ctx))
@@ -44,13 +45,13 @@ pub async fn handler(init_ctx: &crate::InitConfig) -> crate::handler::LnlEventHa
             {literustlib::packet::Property::Unreliable as u8},
             rlnl::events::ingame::FireMiss,
         >::handler(init_ctx))
-        /*.add(crate::handlers::Broadcaster::<
+        .add(crate::handlers::Broadcaster::<
             true,
-            {rlnl::event_code::NetworkEvent::EnemySpotted as i16},
-            {rlnl::event_code::NetworkEvent::EnemySpotted as i16},
-            {literustlib::packet::Property::ReliableOrdered as u8},
-            rlnl::events::ingame::SpottingIds,
-        >::handler(init_ctx))*/
+            {rlnl::event_code::NetworkEvent::MultipleFireMisses as i16},
+            {rlnl::event_code::NetworkEvent::MultipleFireMisses as i16},
+            {literustlib::packet::Property::Unreliable as u8},
+            rlnl::events::ingame::MultipleFireMisses,
+        >::handler(init_ctx))
         .add(spot_player::handler(init_ctx))
         .add(crate::handlers::Broadcaster::<
             false,
@@ -89,6 +90,63 @@ pub async fn handler(init_ctx: &crate::InitConfig) -> crate::handler::LnlEventHa
             rlnl::events::ingame::Kill, // FIXME this is not a player ID -- it's actually sending 2 bytes not 1
         >::handler(init_ctx))
         .add(kill_player::handler(init_ctx))
+        .add(crate::handlers::Broadcaster::<
+            true,
+            {rlnl::event_code::NetworkEvent::EnergyModuleActivated as i16},
+            {rlnl::event_code::NetworkEvent::EnergyModuleActivated as i16},
+            {literustlib::packet::Property::ReliableOrdered as u8},
+            rlnl::events::ingame::PlayerId,
+        >::handler(init_ctx))
+        .add(crate::handlers::Broadcaster::<
+            true,
+            {rlnl::event_code::NetworkEvent::RadarModuleActivated as i16},
+            {rlnl::event_code::NetworkEvent::RemoteRadarModuleActivated as i16},
+            {literustlib::packet::Property::ReliableOrdered as u8},
+            rlnl::events::ingame::PlayerId,
+        >::handler(init_ctx))
+        .add(crate::handlers::Broadcaster::<
+            true,
+            {rlnl::event_code::NetworkEvent::ActivateTeleportEffect as i16},
+            {rlnl::event_code::NetworkEvent::ActivateTeleportEffect as i16},
+            {literustlib::packet::Property::ReliableOrdered as u8},
+            rlnl::events::ingame::PlayerId,
+        >::handler(init_ctx))
+        .add(crate::handlers::Broadcaster::<
+            true,
+            {rlnl::event_code::NetworkEvent::SpawnEmpLocator as i16},
+            {rlnl::event_code::NetworkEvent::SpawnEmpLocator as i16},
+            {literustlib::packet::Property::ReliableOrdered as u8},
+            rlnl::events::ingame::SpawnEmpLocator,
+        >::handler(init_ctx))
+        .add(crate::handlers::Broadcaster::<
+            true,
+            {rlnl::event_code::NetworkEvent::SpawnEmpMachineEffect as i16},
+            {rlnl::event_code::NetworkEvent::SpawnEmpMachineEffect as i16},
+            {literustlib::packet::Property::ReliableOrdered as u8},
+            rlnl::events::ingame::NetworkStunnedMachineEffect,
+        >::handler(init_ctx))
+        .add(crate::handlers::Broadcaster::<
+            true,
+            {rlnl::event_code::NetworkEvent::SpawnShield as i16},
+            {rlnl::event_code::NetworkEvent::SpawnShield as i16},
+            {literustlib::packet::Property::ReliableOrdered as u8},
+            rlnl::events::ingame::ShieldModuleEvent,
+        >::handler(init_ctx))
+        .add(crate::handlers::Broadcaster::<
+            true,
+            {rlnl::event_code::NetworkEvent::Taunt as i16},
+            {rlnl::event_code::NetworkEvent::Taunt as i16},
+            {literustlib::packet::Property::ReliableOrdered as u8},
+            rlnl::events::ingame::Taunt,
+        >::handler(init_ctx))
+        .add(crate::handlers::Broadcaster::<
+            true,
+            {rlnl::event_code::NetworkEvent::CosmeticAction as i16},
+            {rlnl::event_code::NetworkEvent::CosmeticAction as i16},
+            {literustlib::packet::Property::ReliableOrdered as u8},
+            rlnl::events::ingame::CosmeticAction,
+        >::handler(init_ctx))
+        .add(client_unregister::handler(init_ctx))
 }
 
 #[inline]
@@ -104,3 +162,25 @@ pub fn log_lnl_send_failure(result: std::io::Result<usize>) {
         log::error!("Failed to send packet: {}", e);
     }
 }
+
+mod _broadcast_impls {
+    use crate::Broadcastable;
+
+    impl Broadcastable for rlnl::events::ingame::MultiPlayerInputChanged {}
+    impl Broadcastable for rlnl::events::ingame::WeaponFireEffect {}
+    impl Broadcastable for rlnl::events::ingame::FireMiss {}
+    impl Broadcastable for rlnl::events::ingame::MultipleFireMisses {}
+    impl Broadcastable for rlnl::events::ingame::DestroyCubesFull {}
+    impl Broadcastable for rlnl::events::ingame::DestroyCubeNoEffect {}
+    impl Broadcastable for rlnl::events::ingame::DestroyCubeEffectOnly {}
+    impl Broadcastable for rlnl::events::HealedCubes {}
+    impl Broadcastable for rlnl::events::ingame::PlayerId {}
+    impl Broadcastable for rlnl::events::ingame::SpawnEmpLocator {}
+    impl Broadcastable for rlnl::events::ingame::NetworkStunnedMachineEffect {}
+    impl Broadcastable for rlnl::events::ingame::ShieldModuleEvent {}
+    impl Broadcastable for rlnl::events::ingame::Taunt {}
+    impl Broadcastable for rlnl::events::ingame::CosmeticAction {}
+
+    impl Broadcastable for rlnl::events::sync::UpdateGameModeSettings {}
+    impl Broadcastable for rlnl::events::GameTime {}
+}

rc_multiplayer/src/handlers/ingame_broadcast.rs

@@ -1,11 +1,11 @@
-pub struct Broadcaster<const EXCLUDE_SENDER: bool, const CODE_IN: i16, const CODE_OUT: i16, const PROPERTY: u8, InOut: byteserde::des_slice::ByteDeserializeSlice<InOut> + byteserde::ser_heap::ByteSerializeHeap + Send + Sync + 'static> {
+pub struct Broadcaster<const EXCLUDE_SENDER: bool, const CODE_IN: i16, const CODE_OUT: i16, const PROPERTY: u8, InOut: byteserde::des_slice::ByteDeserializeSlice<InOut> + crate::Broadcastable> {
     msg_router: tokio::sync::mpsc::Sender<crate::matches::GameMessage>,
     code_out: rlnl::event_code::NetworkEvent,
     property: literustlib::packet::Property,
     _in: std::marker::PhantomData<InOut>,
 }
 
-impl <const EXCLUDE_SENDER: bool, const CODE_IN: i16, const CODE_OUT: i16, const PROPERTY: u8, InOut: byteserde::des_slice::ByteDeserializeSlice<InOut> + byteserde::ser_heap::ByteSerializeHeap + Send + Sync + 'static> Broadcaster<EXCLUDE_SENDER, CODE_IN, CODE_OUT, PROPERTY, InOut> {
+impl <const EXCLUDE_SENDER: bool, const CODE_IN: i16, const CODE_OUT: i16, const PROPERTY: u8, InOut: byteserde::des_slice::ByteDeserializeSlice<InOut> + crate::Broadcastable> Broadcaster<EXCLUDE_SENDER, CODE_IN, CODE_OUT, PROPERTY, InOut> {
     pub fn handler(init_ctx: &crate::InitConfig) -> crate::handlers::simple_typed::SimpleRlnl<InOut, Self> {
         crate::handlers::simple_typed::SimpleRlnl::new(Broadcaster::new(init_ctx))
     }
@@ -21,7 +21,7 @@ impl <const EXCLUDE_SENDER: bool, const CODE_IN: i16, const CODE_OUT: i16, const
 }
 
 #[async_trait::async_trait]
-impl <const EXCLUDE_SENDER: bool, const CODE_IN: i16, const CODE_OUT: i16, const PROPERTY: u8, InOut: byteserde::des_slice::ByteDeserializeSlice<InOut> + byteserde::ser_heap::ByteSerializeHeap + Send + Sync + 'static> crate::handlers::simple_typed::RlnlEventCodeHandler for Broadcaster<EXCLUDE_SENDER, CODE_IN, CODE_OUT, PROPERTY, InOut> {
+impl <const EXCLUDE_SENDER: bool, const CODE_IN: i16, const CODE_OUT: i16, const PROPERTY: u8, InOut: byteserde::des_slice::ByteDeserializeSlice<InOut> + crate::Broadcastable> crate::handlers::simple_typed::RlnlEventCodeHandler for Broadcaster<EXCLUDE_SENDER, CODE_IN, CODE_OUT, PROPERTY, InOut> {
     type In = InOut;
     const CODE: rlnl::event_code::NetworkEvent = crate::handler::i16_to_event_or_panic(CODE_IN);
 

rc_multiplayer/src/main.rs

@@ -1,7 +1,7 @@
 mod cli;
 mod handler;
 mod traits;
-pub use traits::{EventCodeHandler, UserData, PacketData, EventCode, RobotMotionHandler};
+pub use traits::{EventCodeHandler, UserData, PacketData, EventCode, RobotMotionHandler, Broadcastable};
 mod data;
 mod events;
 mod handlers;

rc_multiplayer/src/matches/aggregate.rs

@@ -19,10 +19,43 @@ impl GameMatches {
 
     async fn start_new_match_engine(&self, _user: &Box<dyn oj_rc_core::persist::user::MultiplayerUser + Send + Sync + 'static>, guid: &str) -> tokio::sync::mpsc::Sender<super::GameMessage> {
         // TODO figure out gamemode and act accordingly
-        let engine = super::GenericGamemodeEngine::new(guid.to_owned());
+        let engine = super::GenericGamemodeEngine::new(guid.to_owned(), super::modes::EliminationLogic::new());
         engine.spawn()
     }
 
+    // create a new match
+    async fn create_new_game(&mut self,
+        user: std::sync::Arc<Box<dyn oj_rc_core::persist::user::MultiplayerUser + Send + Sync + 'static>>,
+        game_guid: String,
+        connection: std::sync::Arc<literustlib_server::Connection<crate::PacketData>>,
+        response: tokio::sync::oneshot::Sender<Option<super::messages::ErrorMessage>>,
+        sender: std::sync::Arc<literustlib_server::DataSender<crate::PacketData>>,
+    ) {
+        log::info!("Creating new game {}", game_guid);
+        let tx = self.start_new_match_engine(&user, &game_guid).await;
+        self.matches.insert(game_guid.clone(), tx.clone());
+        self.routing.insert(user.user_id(), game_guid.clone());
+        if tx.send(super::GameMessage::NewConnection { user, game_guid, connection, response, sender }).await.is_err() {
+            log::error!("Failed to send NewConnection game message to new match");
+        }
+    }
+
+    /*fn do_full_cleanup(&mut self) {
+        let mut games_to_remove = std::collections::HashSet::new();
+        for (game_guid, tx) in self.matches.iter() {
+            if tx.is_closed() {
+                games_to_remove.insert(game_guid.to_owned());
+            }
+        }
+        self.matches.retain(|key, _| !games_to_remove.contains(key));
+        self.routing.retain(|_, val| !games_to_remove.contains(val));
+    }*/
+
+    fn do_game_cleanup(&mut self, game_guid: &String) {
+        self.routing.retain(|_, game_guid2| game_guid2 != game_guid);
+        self.matches.remove(game_guid);
+    }
+
     async fn run(mut self, mut rx: tokio::sync::mpsc::Receiver<super::GameMessage>) {
         log::info!("Match message router has started");
         while !rx.is_closed() {
@@ -31,28 +64,26 @@ impl GameMatches {
                 match msg {
                     super::GameMessage::NewConnection { user, game_guid, connection, response, sender } => {
                         if let Some(tx) = self.matches.get(&game_guid) {
-                            self.routing.insert(user.user_id(), game_guid.clone());
-                            if tx.send(super::GameMessage::NewConnection { user, game_guid, connection, response, sender }).await.is_err() {
-                                log::error!("Failed to send NewConnection game message to existing match");
+                            if tx.is_closed() {
+                                self.do_game_cleanup(&game_guid);
+                                self.create_new_game(user, game_guid, connection, response, sender).await;
+                            } else {
+                                self.routing.insert(user.user_id(), game_guid.clone());
+                                if tx.send(super::GameMessage::NewConnection { user, game_guid, connection, response, sender }).await.is_err() {
+                                    log::error!("Failed to send NewConnection game message to existing match");
+                                }
                             }
                         } else {
-                            // create a new match
-                            log::info!("Creating new game {}", game_guid);
-                            let tx = self.start_new_match_engine(&user, &game_guid).await;
-                            self.matches.insert(game_guid.clone(), tx.clone());
-                            self.routing.insert(user.user_id(), game_guid.clone());
-                            if tx.send(super::GameMessage::NewConnection { user, game_guid, connection, response, sender }).await.is_err() {
-                                log::error!("Failed to send NewConnection game message to new match");
-                            }
+                            self.create_new_game(user, game_guid, connection, response, sender).await;
                         }
                     }
                     msg => {
                         let user_id = msg.user_id();
+                        let mut to_clean = None;
                         if let Some(guid) = self.routing.get(&user_id) {
                             if let Some(tx) = self.matches.get(guid) {
                                 if tx.is_closed() {
-                                    self.matches.remove(guid);
-                                    self.routing.remove(&user_id);
+                                    to_clean = Some(guid.to_owned());
                                 } else {
                                     if tx.send(msg).await.is_err() {
                                         log::error!("Failed to route game message from user {} to match {}", user_id, guid);
@@ -64,6 +95,9 @@ impl GameMatches {
                         } else {
                             log::warn!("Got unroutable user {}", user_id);
                         }
+                        if let Some(game_guid) = to_clean {
+                            self.do_game_cleanup(&game_guid);
+                        }
                     }
                 }
             }

rc_multiplayer/src/matches/engine.rs

@@ -1,3 +1,16 @@
-#[allow(dead_code)]
-pub trait GamemodeEngine: Send + Sync {
+pub struct RlnlPacket {
+    pub event: rlnl::event_code::NetworkEvent,
+    pub property: literustlib::packet::Property,
+    pub data: Box<dyn crate::Broadcastable>,
 }
+
+/// Functions returning a boolean indicate if the generic engine should also perform the default behaviour
+/// (true = yes, do default behaviour)
+#[async_trait::async_trait]
+pub trait CustomGameLogic: Sized + Send + Sync + 'static {
+    async fn on_player_join(&self, generic: &super::GenericGamemodeEngine<Self>, player: &crate::matches::generic::UserConnection, others: &[oj_rc_core::persist::user::PlayerDescriptor]) -> bool;
+    async fn on_player_end(&self, generic: &super::GenericGamemodeEngine<Self>, player: &crate::matches::generic::UserConnection) -> bool;
+    async fn on_vehicle_destroyed(&self, generic: &super::GenericGamemodeEngine<Self>, killer: u8, victim: u8) -> bool;
+    async fn extra_sync_events(&self, generic: &super::GenericGamemodeEngine<Self>, player: &crate::matches::generic::UserConnection) -> Vec<RlnlPacket>;
+}
+

rc_multiplayer/src/matches/generic.rs

@@ -3,6 +3,7 @@ pub(super) struct UserConnection {
     pub(super) connection: UserSender,
     pub(super) state: std::sync::Arc<UserState>,
     pub(super) machine: MachineState,
+    pub(super) descriptor: oj_rc_core::persist::user::PlayerDescriptor,
 }
 
 #[derive(Clone)]
@@ -65,6 +66,7 @@ pub(super) enum ConnectionMode {
     Sync = 2,
     WaitingToStart = 3,
     InGame = 4,
+    Disconnected = 5,
 }
 
 impl ConnectionMode {
@@ -76,6 +78,7 @@ impl ConnectionMode {
             2 => Self::Sync,
             3 => Self::WaitingToStart,
             4 => Self::InGame,
+            5 => Self::Disconnected,
             x => panic!("Unrecognized ConnectionMode {}", x),
         }
     }
@@ -86,22 +89,23 @@ impl ConnectionMode {
     }
 }
 
-pub(super) struct GenericGamemodeEngine {
+pub(super) struct GenericGamemodeEngine<L: super::CustomGameLogic> {
     pub users: tokio::sync::RwLock<std::collections::HashMap<u8, UserConnection>>,
     pub user_id_map: tokio::sync::RwLock<std::collections::HashMap<i32, u8>>,
     //pub recv: tokio::sync::Mutex<tokio::sync::mpsc::Receiver<super::GameMessage>>,
     //pub send: tokio::sync::mpsc::Sender<super::GameMessage>,
     pub game_guid: String,
-    pub is_complete: std::sync::atomic::AtomicBool,
+    is_complete: std::sync::atomic::AtomicBool,
     pub game_start: std::sync::atomic::AtomicI64,
     pub player_count: std::sync::atomic::AtomicU8,
+    pub custom_logic_handler: L,
 }
 
-impl GenericGamemodeEngine {
+impl <L: super::CustomGameLogic> GenericGamemodeEngine<L> {
     const END_OF_SYNC_DELAY: std::time::Duration = std::time::Duration::from_millis(100);
     const COUNTDOWN_DURATION: std::time::Duration = std::time::Duration::from_secs(5);
 
-    pub fn new(guid: String) -> Self {
+    pub fn new(guid: String, custom: L) -> Self {
 
         Self {
             users: tokio::sync::RwLock::new(std::collections::HashMap::new()),
@@ -110,6 +114,7 @@ impl GenericGamemodeEngine {
             is_complete: std::sync::atomic::AtomicBool::new(false),
             game_start: std::sync::atomic::AtomicI64::new(-1),
             player_count: std::sync::atomic::AtomicU8::new(0),
+            custom_logic_handler: custom,
         }
     }
 
@@ -188,7 +193,8 @@ impl GenericGamemodeEngine {
     }
 
     pub(super) async fn run(self, mut recv: tokio::sync::mpsc::Receiver<super::GameMessage>) {
-        while !recv.is_closed() {
+        let mut is_engaged = true;
+        while !recv.is_closed() && is_engaged {
             if let Some(msg) = recv.recv().await {
                 match msg {
                     super::GameMessage::NewConnection { user, game_guid, connection, response, sender } => {
@@ -201,28 +207,32 @@ impl GenericGamemodeEngine {
                             return;
                         } else {
                             let mut users = self.users.write().await;
-                            let new_user = UserConnection {
-                                user,
-                                connection: UserSender {
-                                    connection,
-                                    sender,
-                                },
-                                state: std::sync::Arc::new(UserState::new()),
-                                machine: MachineState::new(),
-                            };
                             //tokio::time::sleep(std::time::Duration::from_secs(1)).await;
                             //let id = users.len() as u8;
-                            match new_user.user.game_players(&game_guid).await {
+                            match user.game_players(&game_guid).await {
                                 Ok(players) => {
                                     if self.player_count.load(std::sync::atomic::Ordering::Relaxed) == 0 {
                                         self.player_count.store(players.len() as _, std::sync::atomic::Ordering::Relaxed);
                                     }
-                                    let user_id = new_user.user.user_id();
-                                    let id = players.iter().filter(|p| p.user_id == user_id).next().map(|p| p.player_id).unwrap();
-                                    self.spawn_send_loading_events(&new_user, id, players);
-                                    log::debug!("User {} is validated to play game {}", new_user.user.user_id(), game_guid);
-                                    self.user_id_map.write().await.insert(new_user.user.user_id(), id);
-                                    users.insert(id, new_user);
+                                    let user_id = user.user_id();
+                                    let player_info = players.iter().filter(|p| p.user_id == user_id).next().unwrap();
+                                    let id = player_info.player_id;
+                                    let new_user = UserConnection {
+                                        user,
+                                        connection: UserSender {
+                                            connection,
+                                            sender,
+                                        },
+                                        state: std::sync::Arc::new(UserState::new()),
+                                        machine: MachineState::new(),
+                                        descriptor: player_info.to_owned(),
+                                    };
+                                    if self.custom_logic_handler.on_player_join(&self, &new_user, &players).await {
+                                        self.spawn_send_loading_events(&new_user, id, players);
+                                        log::debug!("User {} is validated to play game {}", new_user.user.user_id(), game_guid);
+                                        self.user_id_map.write().await.insert(new_user.user.user_id(), id);
+                                        users.insert(id, new_user);
+                                    }
                                     response.send(None).unwrap_or_default();
                                 },
                                 Err(e) => {
@@ -236,6 +246,34 @@ impl GenericGamemodeEngine {
 
                         }
                     },
+                    super::GameMessage::EndConnection { user_id } => {
+                        if let Some(player_id) = self.user_key_by_user_id(user_id).await {
+                            let conn_opt = self.users.write().await.remove(&player_id);
+                            if let Some(conn) = conn_opt {
+                                if self.custom_logic_handler.on_player_end(&self, &conn).await {
+                                    conn.state.mode.store(ConnectionMode::Disconnected.to_u8(), std::sync::atomic::Ordering::Relaxed);
+                                    if !self.is_complete.load(std::sync::atomic::Ordering::Relaxed) {
+                                        self.rebroadcast(
+                                            user_id,
+                                            rlnl::event_code::NetworkEvent::OnAnotherClientDisconnected,
+                                            literustlib::packet::Property::ReliableOrdered,
+                                            &rlnl::events::ingame::PlayerId { player: player_id },
+                                            true,
+                                        ).await;
+                                    } else {
+                                        let mut has_active_connections = false;
+                                        for user in self.users.read().await.values() {
+                                            let mode = ConnectionMode::from_u8(user.state.mode.load(std::sync::atomic::Ordering::Relaxed));
+                                            has_active_connections |= !matches!(mode, ConnectionMode::Disconnected);
+                                        }
+                                        is_engaged = has_active_connections;
+                                    }
+                                    conn.connection.connection.disconnect();
+                                }
+                            }
+
+                        }
+                    },
                     super::GameMessage::LoadingProgress { user_id, user_name, progress } => {
                         let progress_data = rlnl::events::loading::LoadingProgress {
                             user_name: rlnl::types::BinaryWriterString(user_name),
@@ -255,8 +293,8 @@ impl GenericGamemodeEngine {
                             }
                             let mode = ConnectionMode::from_u8(conn.state.mode.load(std::sync::atomic::Ordering::Relaxed));
                             match mode {
-                                ConnectionMode::Loading | ConnectionMode::WaitingForSync => {},
-                                ConnectionMode::Sync | ConnectionMode::WaitingToStart => {
+                                ConnectionMode::Loading | ConnectionMode::Disconnected => {},
+                                ConnectionMode::WaitingForSync | ConnectionMode::Sync | ConnectionMode::WaitingToStart => {
                                     if user_id != conn.user.user_id() {
                                         crate::events::log_lnl_send_failure(conn.connection.rlnl()
                                             .send_data(&progress_data, rlnl::event_code::NetworkEvent::BroadcastLoadingProgress, literustlib::packet::Property::ReliableOrdered, &conn.connection.connection).await);
@@ -357,7 +395,8 @@ impl GenericGamemodeEngine {
                             log::info!("All players ({}) awaiting sync for game {}", player_count, self.game_guid);
                             let total_users = self.users.read().await.len() as u8;
                             for (user_key, conn) in self.users.read().await.iter() {
-                                self.spawn_send_sync_events(conn, conn.user.user_id(), *user_key, total_users);
+                                let extra_packets = self.custom_logic_handler.extra_sync_events(&self, conn).await;
+                                self.spawn_send_sync_events(conn, conn.user.user_id(), *user_key, total_users, extra_packets);
                             }
                         }
                     },
@@ -417,6 +456,7 @@ impl GenericGamemodeEngine {
                         ).await;
                     },
                     super::GameMessage::DestroyVehicle { user_id, remote_player, killer_player } => {
+                        // FIXME allow custom_logic_handler to override the MachineDestroyedConfirmed send
                         self.rebroadcast(
                             user_id,
                             rlnl::event_code::NetworkEvent::MachineDestroyedConfirmed,
@@ -424,7 +464,8 @@ impl GenericGamemodeEngine {
                             &rlnl::events::ingame::Kill { killee_player_id: remote_player, killer_player_id: killer_player },
                             true,
                         ).await;
-                        log::warn!("Player {} was destroyed by {} ({}) !!!implement this!!!", remote_player, killer_player, user_id);
+                        log::info!("Player {} was destroyed by {} ({}) in game {}", remote_player, killer_player, user_id, self.game_guid);
+                        self.custom_logic_handler.on_vehicle_destroyed(&self, killer_player, remote_player).await;
                     }
                     super::GameMessage::BroadcastRlnl { user_id: _, event, property, data } => {
                         if let Some(data) = data {
@@ -456,7 +497,7 @@ impl GenericGamemodeEngine {
                 }
             }
         }
-        self.is_complete.store(true, std::sync::atomic::Ordering::Relaxed);
+        log::info!("Game {} has exited", self.game_guid);
     }
 
     fn spawn_send_loading_events(&self, user: &UserConnection, player_id: u8, players: Vec<oj_rc_core::persist::user::PlayerDescriptor>) {
@@ -488,18 +529,6 @@ impl GenericGamemodeEngine {
                     display_name: rlnl::types::BinaryWriterString(player.display_name),
                 })
                 .collect(),
-                /*players: vec![ // FIXME
-                    rlnl::events::loading::PlayerIDAndName {
-                        player_id: 0,
-                        name: rlnl::types::BinaryWriterString("NGniusness".to_owned()),
-                        display_name: rlnl::types::BinaryWriterString("NGniusness".to_owned()),
-                    },
-                    rlnl::events::loading::PlayerIDAndName {
-                        player_id: 1,
-                        name: rlnl::types::BinaryWriterString("NGniusness2".to_owned()),
-                        display_name: rlnl::types::BinaryWriterString("NGniusness2".to_owned()),
-                    },
-                ],*/
             },
             rlnl::event_code::NetworkEvent::PlayerIDs,
             literustlib::packet::Property::ReliableOrdered,
@@ -517,42 +546,35 @@ impl GenericGamemodeEngine {
         Ok(())
     }
 
-    fn spawn_send_sync_events(&self, user: &UserConnection, user_id: i32, player_id: u8, num_players: u8) {
+    fn spawn_send_sync_events(&self, user: &UserConnection, user_id: i32, player_id: u8, num_players: u8, extra_packets: Vec<super::RlnlPacket>) {
         let connection = user.connection.clone();
-        tokio::spawn(Self::send_sync_events_wrapper(connection, user_id, player_id, num_players));
+        tokio::spawn(Self::send_sync_events_wrapper(connection, user_id, player_id, num_players, extra_packets));
         user.state.mode.store(ConnectionMode::Sync.to_u8(), std::sync::atomic::Ordering::Relaxed);
     }
 
-    async fn send_sync_events_wrapper(connection: UserSender, user_id: i32, player_id: u8, num_players: u8) {
-        if let Err(e) = Self::send_sync_events(connection, player_id, num_players).await {
+    async fn send_sync_events_wrapper(connection: UserSender, user_id: i32, player_id: u8, num_players: u8, extra_packets: Vec<super::RlnlPacket>) {
+        if let Err(e) = Self::send_sync_events(connection, player_id, num_players, extra_packets).await {
             log::error!("Failed to send Sync events for user {}: {}", user_id, e);
         }
     }
 
-    async fn send_sync_events(connection: UserSender, _player_id: u8, num_players: u8) -> std::io::Result<()> {
+    async fn send_sync_events(connection: UserSender, _player_id: u8, num_players: u8, extra_packets: Vec<super::RlnlPacket>) -> std::io::Result<()> {
         let sender = connection.rlnl();
         sender.send_empty(
             rlnl::event_code::NetworkEvent::BeginSync,
             literustlib::packet::Property::ReliableOrdered,
             &connection.connection)
         .await?;
-        // sudden death
-        sender.send_data(
-            &rlnl::events::sync::UpdateGameModeSettings { // FIXME use value from config
-                respawn_heal_duration: 10.0,
-                respawn_full_heal_duration: 10.0,
-            },
-            rlnl::event_code::NetworkEvent::GameModeSettings,
-            literustlib::packet::Property::ReliableOrdered,
-            &connection.connection)
-        .await?;
-        sender.send_data(
-            &rlnl::events::GameTime(300.0), // FIXME use value from config
-            rlnl::event_code::NetworkEvent::CurrentGameTime,
-            literustlib::packet::Property::ReliableOrdered,
-            &connection.connection)
-        .await?;
-        // generic
+
+        for packet in extra_packets {
+            sender.send_data(
+                &*packet.data,
+                packet.event,
+                packet.property,
+                &connection.connection)
+            .await?;
+        }
+
         sender.send_data(
             &rlnl::events::sync::InitialiseGameStats {
                 num_players,
@@ -628,6 +650,8 @@ impl GenericGamemodeEngine {
         // TODO
         Ok(())
     }
-}
 
-impl super::GamemodeEngine for GenericGamemodeEngine {}
+    pub(super) fn game_done(&self) {
+        self.is_complete.store(true, std::sync::atomic::Ordering::SeqCst);
+    }
+}

rc_multiplayer/src/matches/messages.rs

@@ -6,6 +6,9 @@ pub enum GameMessage {
         response: tokio::sync::oneshot::Sender<Option<ErrorMessage>>,
         sender: std::sync::Arc<literustlib_server::DataSender<crate::PacketData>>,
     },
+    EndConnection {
+        user_id: i32,
+    },
     LoadingProgress {
         user_id: i32,
         user_name: String,
@@ -39,13 +42,13 @@ pub enum GameMessage {
         user_id: i32,
         event: rlnl::event_code::NetworkEvent,
         property: literustlib::packet::Property,
-        data: Option<Box<dyn byteserde::ser_heap::ByteSerializeHeap + Send + Sync>>,
+        data: Option<Box<dyn crate::Broadcastable>>,
     },
     RebroadcastRlnl {
         skip_user_id: i32,
         event: rlnl::event_code::NetworkEvent,
         property: literustlib::packet::Property,
-        data: Option<Box<dyn byteserde::ser_heap::ByteSerializeHeap + Send + Sync>>,
+        data: Option<Box<dyn crate::Broadcastable>>,
     },
     Motion {
         user_id: i32,
@@ -60,6 +63,7 @@ impl GameMessage {
             Self::NewConnection { user, .. } => {
                 user.user_id()
             }
+            Self::EndConnection { user_id, .. } => *user_id,
             Self::LoadingProgress { user_id, .. } => *user_id,
             Self::RequestLoadingProgress { user_id, .. } => *user_id,
             Self::WeaponSelect { user_id, .. } => *user_id,

rc_multiplayer/src/matches/mod.rs

@@ -1,5 +1,5 @@
 mod engine;
-pub use engine::GamemodeEngine;
+pub(self) use engine::{CustomGameLogic, RlnlPacket};
 
 mod messages;
 pub use messages::GameMessage;
@@ -12,4 +12,6 @@ pub use aggregate::GameMatches;
 
 mod countdown;
 
+pub mod modes;
+
 pub const CHANNEL_BOUND: usize = 16;

rc_multiplayer/src/matches/modes/elimination.rs

@@ -0,0 +1,162 @@
+use crate::matches::CustomGameLogic;
+
+struct PlayerTracker {
+    alive: tokio::sync::Mutex<std::collections::HashMap<u8, std::collections::HashSet<u8>>>, // team -> set of player_id
+}
+
+impl PlayerTracker {
+    async fn track_vehicle(&self, player: &oj_rc_core::persist::user::PlayerDescriptor) {
+        let mut alive_lock = self.alive.lock().await;
+        if let Some(team) = alive_lock.get_mut(&(player.team as u8)) {
+            team.insert(player.player_id);
+        } else {
+            let mut new_team = std::collections::HashSet::new();
+            new_team.insert(player.player_id);
+            alive_lock.insert(player.team as u8, new_team);
+        }
+    }
+
+    async fn destroy_vehicle(&self, player: &oj_rc_core::persist::user::PlayerDescriptor) {
+        let mut alive_lock = self.alive.lock().await;
+        if let Some(team) = alive_lock.get_mut(&(player.team as u8)) {
+            team.remove(&player.player_id);
+        } else {
+            log::warn!("Destroyed player's vehicle for previously-unseen team");
+        }
+    }
+
+    async fn winner_team(&self) -> Option<u8> {
+        let alive_lock = self.alive.lock().await;
+        let mut only_alive_team = None;
+        for (team, players) in alive_lock.iter() {
+            if !players.is_empty() {
+                if only_alive_team.is_some() {
+                    // more than one team is alive, game is not over
+                    return None;
+                } else {
+                    only_alive_team = Some(*team);
+                }
+            }
+        }
+        only_alive_team
+    }
+}
+
+pub struct EliminationLogic {
+    tracked: PlayerTracker
+}
+
+impl EliminationLogic {
+    pub fn new() -> Self {
+        Self {
+            tracked: PlayerTracker {
+                alive: tokio::sync::Mutex::new(std::collections::HashMap::new()),
+            },
+        }
+    }
+}
+
+#[async_trait::async_trait]
+impl CustomGameLogic for EliminationLogic {
+    async fn on_player_join(&self, _generic: &crate::matches::GenericGamemodeEngine<Self>, player: &crate::matches::generic::UserConnection, _others: &[oj_rc_core::persist::user::PlayerDescriptor]) -> bool {
+        self.tracked.track_vehicle(&player.descriptor).await;
+        true
+    }
+
+    async fn on_player_end(&self, generic: &crate::matches::GenericGamemodeEngine<Self>, player: &crate::matches::generic::UserConnection) -> bool {
+        self.tracked.destroy_vehicle(&player.descriptor).await;
+        if let Some(winning_team) = self.tracked.winner_team().await {
+            log::info!("Team {} has won sudden death game {} because player {} left", winning_team, generic.game_guid, player.descriptor.player_id);
+            let data = rlnl::events::ingame::GameLoseWin {
+                winning_team,
+                end_reason: rlnl::types::GameEndReason::OneTeamRemaining,
+            };
+            let winning_team_i32 = winning_team as i32;
+            for conn in generic.users.read().await.values() {
+                let event = if conn.descriptor.team == winning_team_i32 {
+                    rlnl::event_code::NetworkEvent::GameWon
+                } else {
+                    rlnl::event_code::NetworkEvent::GameLost
+                };
+                crate::events::log_lnl_send_failure(conn.connection.rlnl().send_data(
+                    &data,
+                    event,
+                    literustlib::packet::Property::ReliableOrdered,
+                    &conn.connection.connection
+                ).await);
+            }
+            generic.game_done();
+        }
+        true
+    }
+
+    async fn on_vehicle_destroyed(&self, generic: &crate::matches::GenericGamemodeEngine<Self>, _killer: u8, victim: u8) -> bool {
+        if let Some(conn) = generic.users.read().await.get(&victim) {
+            self.tracked.destroy_vehicle(&conn.descriptor).await;
+            let final_score = rlnl::events::ingame::SetFinalGameScore {
+                player_id: victim,
+                score: 42,
+            };
+            generic.broadcast(
+                rlnl::event_code::NetworkEvent::SetFinalGameScore,
+                literustlib::packet::Property::ReliableOrdered,
+                &final_score,
+                true,
+            ).await;
+            if let Some(winning_team) = self.tracked.winner_team().await {
+                log::info!("Team {} has won sudden death game {}", winning_team, generic.game_guid);
+                let data = rlnl::events::ingame::GameLoseWin {
+                    winning_team,
+                    end_reason: rlnl::types::GameEndReason::OneTeamRemaining,
+                };
+                let winning_team_i32 = winning_team as i32;
+                for conn in generic.users.read().await.values() {
+                    let event = if conn.descriptor.team == winning_team_i32 {
+                        rlnl::event_code::NetworkEvent::GameWon
+                    } else {
+                        rlnl::event_code::NetworkEvent::GameLost
+                    };
+                    crate::events::log_lnl_send_failure(conn.connection.rlnl().send_data(
+                        &data,
+                        event,
+                        literustlib::packet::Property::ReliableOrdered,
+                        &conn.connection.connection
+                    ).await);
+                }
+                generic.game_done();
+            } else {
+                log::info!("Player {} has been destroyed in sudden death game {}", victim, generic.game_guid);
+                let data = rlnl::events::ingame::GameLoseWin {
+                    winning_team: if conn.descriptor.team == 0 { 1 } else { 0 }, // always the other team
+                    end_reason: rlnl::types::GameEndReason::NoPlayersRemaining,
+                };
+                crate::events::log_lnl_send_failure(conn.connection.rlnl().send_data(
+                    &data,
+                    rlnl::event_code::NetworkEvent::GameLost,
+                    literustlib::packet::Property::ReliableOrdered,
+                    &conn.connection.connection
+                ).await);
+            }
+
+        }
+        true
+    }
+
+    async fn extra_sync_events(&self, _generic: &crate::matches::GenericGamemodeEngine<Self>, _player: &crate::matches::generic::UserConnection) -> Vec<crate::matches::RlnlPacket> {
+        vec![
+            crate::matches::RlnlPacket {
+                event: rlnl::event_code::NetworkEvent::GameModeSettings,
+                property: literustlib::packet::Property::ReliableOrdered,
+                data: Box::new(rlnl::events::sync::UpdateGameModeSettings { // FIXME use value from config
+                    respawn_heal_duration: 10.0,
+                    respawn_full_heal_duration: 10.0,
+                }),
+            },
+            crate::matches::RlnlPacket {
+                event: rlnl::event_code::NetworkEvent::CurrentGameTime,
+                property: literustlib::packet::Property::ReliableOrdered,
+                data: Box::new(rlnl::events::GameTime(300.0)), // FIXME use value from config
+            },
+        ]
+    }
+}

rc_multiplayer/src/matches/modes/mod.rs

@@ -0,0 +1,6 @@
+mod no_op;
+#[allow(unused_imports)]
+pub use no_op::NoOpLogic;
+
+mod elimination;
+pub use elimination::EliminationLogic;

rc_multiplayer/src/matches/modes/no_op.rs

@@ -0,0 +1,22 @@
+use crate::matches::CustomGameLogic;
+
+pub struct NoOpLogic;
+
+#[async_trait::async_trait]
+impl CustomGameLogic for NoOpLogic {
+    async fn on_player_join(&self, _generic: &crate::matches::GenericGamemodeEngine<Self>, _player: &crate::matches::generic::UserConnection, _others: &[oj_rc_core::persist::user::PlayerDescriptor]) -> bool {
+        true
+    }
+
+    async fn on_player_end(&self, _generic: &crate::matches::GenericGamemodeEngine<Self>, _player: &crate::matches::generic::UserConnection) -> bool {
+        true
+    }
+
+    async fn on_vehicle_destroyed(&self, _generic: &crate::matches::GenericGamemodeEngine<Self>, _killer: u8, _victim: u8) -> bool {
+        true
+    }
+
+    async fn extra_sync_events(&self, _generic: &crate::matches::GenericGamemodeEngine<Self>, _player: &crate::matches::generic::UserConnection) -> Vec<crate::matches::RlnlPacket> {
+        Vec::default()
+    }
+}

rc_multiplayer/src/traits.rs

@@ -14,3 +14,5 @@ pub trait EventCode: EventCodeHandler {
 pub trait RobotMotionHandler: Send + Sync {
     async fn handle(&self, data: &bytes::Bytes, user: &UserData);
 }
+
+pub trait Broadcastable: byteserde::ser_heap::ByteSerializeHeap + core::any::Any + Send + Sync + 'static {}