rust/hedgewars-server/src/server/handlers/common.rs
author alfadur <mail@none>
Wed, 06 Feb 2019 21:33:22 +0300
changeset 14710 aae29ba56aec
parent 14709 4569d8d50286
child 14711 f61ce544d436
permissions -rw-r--r--
Server action refactoring part C of N
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use crate::{
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    protocol::messages::server_chat,
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    protocol::messages::{
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        HWProtocolMessage::{self, Rnd},
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        HWServerMessage::{self, *},
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    },
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    server::{
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        actions::Action,
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        client::HWClient,
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        core::HWServer,
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        coretypes::{ClientId, GameCfg, RoomId, Vote, VoteType},
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        room::HWRoom,
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    },
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    utils::to_engine_msg,
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};
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use super::Response;
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use rand::{self, thread_rng, Rng};
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use std::{iter::once, mem::replace};
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pub fn rnd_reply(options: &[String]) -> HWServerMessage {
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    let mut rng = thread_rng();
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    let reply = if options.is_empty() {
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        (*rng.choose(&["heads", "tails"]).unwrap()).to_owned()
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    } else {
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        rng.choose(&options).unwrap().clone()
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    };
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    ChatMsg {
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        nick: "[random]".to_owned(),
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        msg: reply.clone(),
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    }
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}
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pub fn process_login(server: &mut HWServer, response: &mut Response) {
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    let client_id = response.client_id();
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    let nick = server.clients[client_id].nick.clone();
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    let has_nick_clash = server
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        .clients
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        .iter()
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        .any(|(id, c)| id != client_id && c.nick == nick);
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    let client = &mut server.clients[client_id];
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    if !client.is_checker() && has_nick_clash {
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        if client.protocol_number < 38 {
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            remove_client(server, response, "Nickname is already in use".to_string());
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        } else {
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            client.nick.clear();
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            response.add(Notice("NickAlreadyInUse".to_string()).send_self());
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        }
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    } else {
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        server.clients[client_id].room_id = Some(server.lobby_id);
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        let lobby_nicks: Vec<_> = server
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            .clients
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            .iter()
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            .filter_map(|(_, c)| c.room_id.and(Some(c.nick.clone())))
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            .collect();
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        let joined_msg = LobbyJoined(lobby_nicks);
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        let everyone_msg = LobbyJoined(vec![server.clients[client_id].nick.clone()]);
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        let flags_msg = ClientFlags(
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            "+i".to_string(),
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            server
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                .clients
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                .iter()
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                .filter(|(_, c)| c.room_id.is_some())
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                .map(|(_, c)| c.nick.clone())
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                .collect(),
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        );
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        let server_msg = ServerMessage("\u{1f994} is watching".to_string());
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        let rooms_msg = Rooms(
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            server
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                .rooms
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                .iter()
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                .filter(|(id, _)| *id != server.lobby_id)
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                .flat_map(|(_, r)| r.info(r.master_id.map(|id| &server.clients[id])))
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                .collect(),
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        );
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        response.add(everyone_msg.send_all().but_self());
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        response.add(joined_msg.send_self());
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        response.add(flags_msg.send_self());
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        response.add(server_msg.send_self());
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        response.add(rooms_msg.send_self());
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    }
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}
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pub fn remove_teams(
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    room: &mut HWRoom,
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    team_names: Vec<String>,
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    is_in_game: bool,
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    response: &mut Response,
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) {
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    if let Some(ref mut info) = room.game_info {
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        for team_name in &team_names {
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            info.left_teams.push(team_name.clone());
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            if is_in_game {
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                let msg = once(b'F').chain(team_name.bytes());
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                response.add(
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                    ForwardEngineMessage(vec![to_engine_msg(msg)])
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                        .send_all()
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                        .in_room(room.id)
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                        .but_self(),
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                );
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                info.teams_in_game -= 1;
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                if info.teams_in_game == 0 {
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                    //FinishRoomGame(room.id)
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                }
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                let remove_msg = to_engine_msg(once(b'F').chain(team_name.bytes()));
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                if let Some(m) = &info.sync_msg {
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                    info.msg_log.push(m.clone());
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                    info.sync_msg = None
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                }
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                info.msg_log.push(remove_msg.clone());
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                response.add(
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                    ForwardEngineMessage(vec![remove_msg])
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                        .send_all()
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                        .in_room(room.id)
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                        .but_self(),
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                );
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            }
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        }
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    }
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    for team_name in team_names {
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        room.remove_team(&team_name);
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        response.add(TeamRemove(team_name).send_all().in_room(room.id));
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    }
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}
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pub fn exit_room(client: &HWClient, room: &mut HWRoom, response: &mut Response, msg: &str) {
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    if room.players_number > 1 || room.is_fixed() {
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        room.players_number -= 1;
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        if client.is_ready() && room.ready_players_number > 0 {
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            room.ready_players_number -= 1;
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        }
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        let team_names: Vec<_> = room
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            .client_teams(client.id)
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            .map(|t| t.name.clone())
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            .collect();
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        remove_teams(room, team_names, client.is_in_game(), response);
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        if room.players_number > 0 {
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            response.add(
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                RoomLeft(client.nick.clone(), msg.to_string())
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                    .send_all()
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                    .in_room(room.id)
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                    .but_self(),
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            );
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        }
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        //ChangeMaster(room.id, None));
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    }
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    let update_msg = if room.players_number == 0 && !room.is_fixed() {
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        RoomRemove(room.name.clone())
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    } else {
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        RoomUpdated(room.name.clone(), room.info(Some(&client)))
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    };
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    response.add(update_msg.send_all().with_protocol(room.protocol_number));
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    response.add(ClientFlags("-i".to_string(), vec![client.nick.clone()]).send_all());
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}
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pub fn remove_client(server: &mut HWServer, response: &mut Response, msg: String) {
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    let client_id = response.client_id();
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    let lobby_id = server.lobby_id;
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    let client = &mut server.clients[client_id];
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    let (nick, room_id) = (client.nick.clone(), client.room_id);
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    if let Some(room_id) = room_id {
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        let room = &mut server.rooms[room_id];
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        exit_room(client, room, response, &msg);
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        client.room_id = Some(lobby_id);
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    }
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    server.remove_client(client_id);
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    response.add(LobbyLeft(nick, msg.to_string()).send_all());
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    response.add(Bye("User quit: ".to_string() + &msg).send_self());
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}
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pub fn get_room_update(
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    room_name: Option<String>,
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    room: &HWRoom,
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    master: Option<&HWClient>,
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    response: &mut Response,
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) {
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    let update_msg = RoomUpdated(room_name.unwrap_or(room.name.clone()), room.info(master));
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    response.add(update_msg.send_all().with_protocol(room.protocol_number));
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}
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pub fn get_room_config(room: &HWRoom, to_client: ClientId, response: &mut Response) {
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    response.add(ConfigEntry("FULLMAPCONFIG".to_string(), room.map_config()).send(to_client));
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    for cfg in room.game_config() {
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        response.add(cfg.to_server_msg().send(to_client));
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    }
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}
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pub fn get_room_teams(
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    server: &HWServer,
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    room_id: RoomId,
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    to_client: ClientId,
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    response: &mut Response,
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) {
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    let room = &server.rooms[room_id];
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    let current_teams = match room.game_info {
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        Some(ref info) => &info.teams_at_start,
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        None => &room.teams,
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    };
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    for (owner_id, team) in current_teams.iter() {
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        response.add(TeamAdd(HWRoom::team_info(&server.clients[*owner_id], &team)).send(to_client));
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        response.add(TeamColor(team.name.clone(), team.color).send(to_client));
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        response.add(HedgehogsNumber(team.name.clone(), team.hedgehogs_number).send(to_client));
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    }
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}
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pub fn get_room_flags(
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    server: &HWServer,
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    room_id: RoomId,
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    to_client: ClientId,
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    response: &mut Response,
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) {
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    let room = &server.rooms[room_id];
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    if let Some(id) = room.master_id {
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        response.add(
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            ClientFlags("+h".to_string(), vec![server.clients[id].nick.clone()]).send(to_client),
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        );
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    }
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    let nicks: Vec<_> = server
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        .clients
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        .iter()
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        .filter(|(_, c)| c.room_id == Some(room_id) && c.is_ready())
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        .map(|(_, c)| c.nick.clone())
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        .collect();
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    if !nicks.is_empty() {
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        response.add(ClientFlags("+r".to_string(), nicks).send(to_client));
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    }
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}
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pub fn apply_voting_result(
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    server: &mut HWServer,
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    room_id: RoomId,
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    response: &mut Response,
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    kind: VoteType,
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) {
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    let client_id = response.client_id;
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    match kind {
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        VoteType::Kick(nick) => {
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            if let Some(client) = server.find_client(&nick) {
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                if client.room_id == Some(room_id) {
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                    let id = client.id;
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                    response.add(Kicked.send_self());
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                    exit_room(
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                        &mut server.clients[client_id],
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                        &mut server.rooms[room_id],
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                        response,
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                        "kicked",
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                    );
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                }
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            }
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        }
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        VoteType::Map(None) => (),
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        VoteType::Map(Some(name)) => {
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            if let Some(location) = server.rooms[room_id].load_config(&name) {
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                response.add(
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                    server_chat(location.to_string())
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                        .send_all()
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                        .in_room(room_id),
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                );
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                let room = &server.rooms[room_id];
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                let room_master = if let Some(id) = room.master_id {
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                    Some(&server.clients[id])
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                } else {
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                    None
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                };
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                get_room_update(None, room, room_master, response);
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                for (_, client) in server.clients.iter() {
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                    if client.room_id == Some(room_id) {
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                        super::common::get_room_config(&server.rooms[room_id], client.id, response);
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                    }
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                }
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            }
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        }
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        VoteType::Pause => {
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            if let Some(ref mut info) = server.rooms[room_id].game_info {
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                info.is_paused = !info.is_paused;
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                response.add(
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                    server_chat("Pause toggled.".to_string())
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                        .send_all()
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                        .in_room(room_id),
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                );
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                response.add(
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                    ForwardEngineMessage(vec![to_engine_msg(once(b'I'))])
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                        .send_all()
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                        .in_room(room_id),
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                );
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            }
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        }
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        VoteType::NewSeed => {
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            let seed = thread_rng().gen_range(0, 1_000_000_000).to_string();
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            let cfg = GameCfg::Seed(seed);
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            response.add(cfg.to_server_msg().send_all().in_room(room_id));
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            server.rooms[room_id].set_config(cfg);
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        }
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        VoteType::HedgehogsPerTeam(number) => {
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            let r = &mut server.rooms[room_id];
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            let nicks = r.set_hedgehogs_number(number);
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            response.extend(
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                nicks
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                    .into_iter()
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                    .map(|n| HedgehogsNumber(n, number).send_all().in_room(room_id)),
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            );
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        }
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    }
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}
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fn add_vote(room: &mut HWRoom, response: &mut Response, vote: Vote) -> Option<bool> {
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    let client_id = response.client_id;
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    let mut result = None;
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    if let Some(ref mut voting) = room.voting {
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        if vote.is_forced || voting.votes.iter().all(|(id, _)| client_id != *id) {
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            response.add(server_chat("Your vote has been counted.".to_string()).send_self());
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            voting.votes.push((client_id, vote.is_pro));
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            let i = voting.votes.iter();
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            let pro = i.clone().filter(|(_, v)| *v).count();
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            let contra = i.filter(|(_, v)| !*v).count();
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            let success_quota = voting.voters.len() / 2 + 1;
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            if vote.is_forced && vote.is_pro || pro >= success_quota {
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                result = Some(true);
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            } else if vote.is_forced && !vote.is_pro || contra > voting.voters.len() - success_quota
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            {
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                result = Some(false);
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            }
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        } else {
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            response.add(server_chat("You already have voted.".to_string()).send_self());
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        }
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    } else {
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        response.add(server_chat("There's no voting going on.".to_string()).send_self());
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    }
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    result
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}
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   359
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pub fn submit_vote(server: &mut HWServer, vote: Vote, response: &mut Response) {
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    let client_id = response.client_id;
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    let client = &server.clients[client_id];
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   363
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   364
    if let Some(room_id) = client.room_id {
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   365
        let room = &mut server.rooms[room_id];
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   366
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        if let Some(res) = add_vote(room, response, vote) {
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   368
            response.add(
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   369
                server_chat("Voting closed.".to_string())
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   370
                    .send_all()
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   371
                    .in_room(room.id),
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   372
            );
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   373
            let voting = replace(&mut room.voting, None).unwrap();
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   374
            if res {
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   375
                apply_voting_result(server, room_id, response, voting.kind);
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   376
            }
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        }
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   378
    }
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   379
}
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   380
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   381
pub fn start_game(server: &mut HWServer, room_id: RoomId, response: &mut Response) {
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   382
    let (room_clients, room_nicks): (Vec<_>, Vec<_>) = server
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   383
        .clients
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   384
        .iter()
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   385
        .map(|(id, c)| (id, c.nick.clone()))
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   386
        .unzip();
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   387
    let room = &mut server.rooms[room_id];
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   388
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   389
    if !room.has_multiple_clans() {
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   390
        response.add(
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   391
            Warning("The game can't be started with less than two clans!".to_string()).send_self(),
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   392
        );
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   393
    } else if room.protocol_number <= 43 && room.players_number != room.ready_players_number {
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   394
        response.add(Warning("Not all players are ready".to_string()).send_self());
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   395
    } else if room.game_info.is_some() {
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   396
        response.add(Warning("The game is already in progress".to_string()).send_self());
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diff changeset
   397
    } else {
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   398
        room.start_round();
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   399
        for id in room_clients {
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   400
            let c = &mut server.clients[id];
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   401
            c.set_is_in_game(false);
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   402
            c.team_indices = room.client_team_indices(c.id);
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   403
        }
4569d8d50286 Server action refactoring part B of N
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   404
        response.add(RunGame.send_all().in_room(room.id));
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   405
        response.add(
4569d8d50286 Server action refactoring part B of N
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   406
            ClientFlags("+g".to_string(), room_nicks)
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   407
                .send_all()
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   408
                .in_room(room.id),
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diff changeset
   409
        );
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diff changeset
   410
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   411
        let room_master = if let Some(id) = room.master_id {
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   412
            Some(&server.clients[id])
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   413
        } else {
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   414
            None
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diff changeset
   415
        };
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   416
        get_room_update(None, room, room_master, response);
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   417
    }
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   418
}
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   419
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   420
pub fn end_game(server: &mut HWServer, room_id: RoomId, response: &mut Response) {
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   421
    let room = &mut server.rooms[room_id];
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   422
    room.ready_players_number = 1;
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   423
    let room_master = if let Some(id) = room.master_id {
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   424
        Some(&server.clients[id])
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   425
    } else {
4569d8d50286 Server action refactoring part B of N
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   426
        None
4569d8d50286 Server action refactoring part B of N
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diff changeset
   427
    };
4569d8d50286 Server action refactoring part B of N
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   428
    get_room_update(None, room, room_master, response);
4569d8d50286 Server action refactoring part B of N
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diff changeset
   429
    response.add(RoundFinished.send_all().in_room(room_id));
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diff changeset
   430
4569d8d50286 Server action refactoring part B of N
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   431
    if let Some(info) = replace(&mut room.game_info, None) {
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   432
        for (_, client) in server.clients.iter() {
4569d8d50286 Server action refactoring part B of N
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   433
            if client.room_id == Some(room_id) && client.is_joined_mid_game() {
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aae29ba56aec Server action refactoring part C of N
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diff changeset
   434
                super::common::get_room_config(room, client.id, response);
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diff changeset
   435
                response.extend(
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diff changeset
   436
                    info.left_teams
4569d8d50286 Server action refactoring part B of N
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diff changeset
   437
                        .iter()
4569d8d50286 Server action refactoring part B of N
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diff changeset
   438
                        .map(|name| TeamRemove(name.clone()).send(client.id)),
4569d8d50286 Server action refactoring part B of N
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diff changeset
   439
                );
4569d8d50286 Server action refactoring part B of N
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diff changeset
   440
            }
4569d8d50286 Server action refactoring part B of N
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diff changeset
   441
        }
4569d8d50286 Server action refactoring part B of N
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diff changeset
   442
    }
4569d8d50286 Server action refactoring part B of N
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diff changeset
   443
4569d8d50286 Server action refactoring part B of N
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diff changeset
   444
    let nicks: Vec<_> = server
4569d8d50286 Server action refactoring part B of N
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diff changeset
   445
        .clients
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   446
        .iter_mut()
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   447
        .filter(|(_, c)| c.room_id == Some(room_id))
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   448
        .map(|(_, c)| {
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   449
            c.set_is_ready(c.is_master());
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   450
            c.set_is_joined_mid_game(false);
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   451
            c
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   452
        })
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   453
        .filter_map(|c| {
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   454
            if !c.is_master() {
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   455
                Some(c.nick.clone())
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   456
            } else {
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   457
                None
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   458
            }
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   459
        })
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   460
        .collect();
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   461
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   462
    if !nicks.is_empty() {
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   463
        let msg = if room.protocol_number < 38 {
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   464
            LegacyReady(false, nicks)
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   465
        } else {
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   466
            ClientFlags("-r".to_string(), nicks)
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   467
        };
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   468
        response.add(msg.send_all().in_room(room_id));
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   469
    }
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   470
}
4569d8d50286 Server action refactoring part B of N
alfadur <mail@none>
parents: 14708
diff changeset
   471
13444
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   472
#[cfg(test)]
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   473
mod tests {
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   474
    use super::*;
13713
59ea2403f62d move everything test related into test cfg
alfadur
parents: 13666
diff changeset
   475
    use crate::protocol::messages::HWServerMessage::ChatMsg;
14704
932ff7683653 Server action refactoring part 8 of N
alfadur <mail@none>
parents: 14696
diff changeset
   476
    use crate::server::actions::PendingMessage;
13444
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   477
13445
d3c86ade3d4d Send the rnd reply to the room only.
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents: 13444
diff changeset
   478
    fn reply2string(r: HWServerMessage) -> String {
d3c86ade3d4d Send the rnd reply to the room only.
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents: 13444
diff changeset
   479
        match r {
d3c86ade3d4d Send the rnd reply to the room only.
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents: 13444
diff changeset
   480
            ChatMsg { msg: p, .. } => String::from(p),
d3c86ade3d4d Send the rnd reply to the room only.
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents: 13444
diff changeset
   481
            _ => panic!("expected a ChatMsg"),
13444
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   482
        }
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   483
    }
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   484
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   485
    fn run_handle_test(opts: Vec<String>) {
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   486
        let opts2 = opts.clone();
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   487
        for opt in opts {
13492
ba5211dddb21 Assorted chat fixes
alfadur
parents: 13446
diff changeset
   488
            while reply2string(rnd_reply(&opts2)) != opt {}
13444
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   489
        }
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   490
    }
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   491
13446
dd2e51f7303d Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents: 13445
diff changeset
   492
    /// This test terminates almost surely.
13444
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   493
    #[test]
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   494
    fn test_handle_rnd_empty() {
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   495
        run_handle_test(vec![])
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   496
    }
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   497
13446
dd2e51f7303d Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents: 13445
diff changeset
   498
    /// This test terminates almost surely.
13444
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   499
    #[test]
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   500
    fn test_handle_rnd_nonempty() {
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   501
        run_handle_test(vec!["A".to_owned(), "B".to_owned(), "C".to_owned()])
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   502
    }
13446
dd2e51f7303d Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents: 13445
diff changeset
   503
dd2e51f7303d Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents: 13445
diff changeset
   504
    /// This test terminates almost surely (strong law of large numbers)
dd2e51f7303d Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents: 13445
diff changeset
   505
    #[test]
dd2e51f7303d Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents: 13445
diff changeset
   506
    fn test_distribution() {
dd2e51f7303d Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents: 13445
diff changeset
   507
        let eps = 0.000001;
dd2e51f7303d Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents: 13445
diff changeset
   508
        let lim = 0.5;
dd2e51f7303d Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents: 13445
diff changeset
   509
        let opts = vec![0.to_string(), 1.to_string()];
dd2e51f7303d Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents: 13445
diff changeset
   510
        let mut ones = 0;
dd2e51f7303d Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents: 13445
diff changeset
   511
        let mut tries = 0;
dd2e51f7303d Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents: 13445
diff changeset
   512
dd2e51f7303d Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents: 13445
diff changeset
   513
        while tries < 1000 || ((ones as f64 / tries as f64) - lim).abs() >= eps {
dd2e51f7303d Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents: 13445
diff changeset
   514
            tries += 1;
13492
ba5211dddb21 Assorted chat fixes
alfadur
parents: 13446
diff changeset
   515
            if reply2string(rnd_reply(&opts)) == 1.to_string() {
13446
dd2e51f7303d Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents: 13445
diff changeset
   516
                ones += 1;
dd2e51f7303d Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents: 13445
diff changeset
   517
            }
dd2e51f7303d Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents: 13445
diff changeset
   518
        }
dd2e51f7303d Add an extra test for Rnd's distribution
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents: 13445
diff changeset
   519
    }
13444
914f9b970f4d Implement server-side logic for Rnd
Marcin Mielniczuk <marmistrz.dev@zoho.eu>
parents:
diff changeset
   520
}