--- a/rust/hedgewars-server/src/server/handlers/common.rs Tue May 28 17:49:04 2019 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,661 +0,0 @@
-use crate::{
- protocol::messages::server_chat,
- protocol::messages::{
- add_flags, remove_flags,
- HWProtocolMessage::{self, Rnd},
- HWServerMessage::{self, *},
- ProtocolFlags as Flags,
- },
- server::{
- client::HWClient,
- core::HWServer,
- coretypes::{ClientId, GameCfg, RoomId, TeamInfo, Vote, VoteType},
- room::HWRoom,
- },
- utils::to_engine_msg,
-};
-
-use super::Response;
-
-use crate::server::coretypes::RoomConfig;
-use rand::{self, seq::SliceRandom, thread_rng, Rng};
-use std::{iter::once, mem::replace};
-
-pub fn rnd_reply(options: &[String]) -> HWServerMessage {
- let mut rng = thread_rng();
-
- let reply = if options.is_empty() {
- (*&["heads", "tails"].choose(&mut rng).unwrap()).to_string()
- } else {
- options.choose(&mut rng).unwrap().clone()
- };
-
- ChatMsg {
- nick: "[random]".to_string(),
- msg: reply,
- }
-}
-
-pub fn join_lobby(server: &mut HWServer, response: &mut Response) {
- let client_id = response.client_id();
-
- let client = &server.clients[client_id];
- let nick = vec![client.nick.clone()];
- let mut flags = vec![];
- if client.is_registered() {
- flags.push(Flags::Registered)
- }
- if client.is_admin() {
- flags.push(Flags::Admin)
- }
- if client.is_contributor() {
- flags.push(Flags::Contributor)
- }
-
- let all_nicks: Vec<_> = server.collect_nicks(|_| true);
-
- let mut flag_selectors = [
- (
- Flags::Registered,
- server.collect_nicks(|(_, c)| c.is_registered()),
- ),
- (Flags::Admin, server.collect_nicks(|(_, c)| c.is_admin())),
- (
- Flags::Contributor,
- server.collect_nicks(|(_, c)| c.is_contributor()),
- ),
- (
- Flags::InRoom,
- server.collect_nicks(|(_, c)| c.room_id.is_some()),
- ),
- ];
-
- let server_msg = ServerMessage(server.get_greetings(client_id).to_string());
-
- let rooms_msg = Rooms(
- server
- .rooms
- .iter()
- .filter(|(_, r)| r.protocol_number == client.protocol_number)
- .flat_map(|(_, r)| r.info(r.master_id.map(|id| &server.clients[id])))
- .collect(),
- );
-
- response.add(LobbyJoined(nick).send_all().but_self());
- response.add(
- ClientFlags(add_flags(&flags), all_nicks.clone())
- .send_all()
- .but_self(),
- );
-
- response.add(LobbyJoined(all_nicks).send_self());
- for (flag, nicks) in &mut flag_selectors {
- if !nicks.is_empty() {
- response.add(ClientFlags(add_flags(&[*flag]), replace(nicks, vec![])).send_self());
- }
- }
-
- response.add(server_msg.send_self());
- response.add(rooms_msg.send_self());
-}
-
-pub fn remove_teams(
- room: &mut HWRoom,
- team_names: Vec<String>,
- is_in_game: bool,
- response: &mut Response,
-) {
- if let Some(ref mut info) = room.game_info {
- for team_name in &team_names {
- info.left_teams.push(team_name.clone());
-
- if is_in_game {
- let msg = once(b'F').chain(team_name.bytes());
- response.add(
- ForwardEngineMessage(vec![to_engine_msg(msg)])
- .send_all()
- .in_room(room.id)
- .but_self(),
- );
-
- info.teams_in_game -= 1;
-
- let remove_msg = to_engine_msg(once(b'F').chain(team_name.bytes()));
- if let Some(m) = &info.sync_msg {
- info.msg_log.push(m.clone());
- info.sync_msg = None
- }
- info.msg_log.push(remove_msg.clone());
-
- response.add(
- ForwardEngineMessage(vec![remove_msg])
- .send_all()
- .in_room(room.id)
- .but_self(),
- );
- }
- }
- }
-
- for team_name in team_names {
- room.remove_team(&team_name);
- response.add(TeamRemove(team_name).send_all().in_room(room.id));
- }
-}
-
-fn remove_client_from_room(
- client: &mut HWClient,
- room: &mut HWRoom,
- response: &mut Response,
- msg: &str,
-) {
- room.players_number -= 1;
- if room.players_number > 0 || room.is_fixed() {
- if client.is_ready() && room.ready_players_number > 0 {
- room.ready_players_number -= 1;
- }
-
- let team_names: Vec<_> = room
- .client_teams(client.id)
- .map(|t| t.name.clone())
- .collect();
- remove_teams(room, team_names, client.is_in_game(), response);
-
- if room.players_number > 0 {
- response.add(
- RoomLeft(client.nick.clone(), msg.to_string())
- .send_all()
- .in_room(room.id)
- .but_self(),
- );
- }
-
- if client.is_master() && !room.is_fixed() {
- client.set_is_master(false);
- response.add(
- ClientFlags(
- remove_flags(&[Flags::RoomMaster]),
- vec![client.nick.clone()],
- )
- .send_all()
- .in_room(room.id),
- );
- room.master_id = None;
- }
- }
-
- client.room_id = None;
-
- let update_msg = if room.players_number == 0 && !room.is_fixed() {
- RoomRemove(room.name.clone())
- } else {
- RoomUpdated(room.name.clone(), room.info(Some(&client)))
- };
- response.add(update_msg.send_all().with_protocol(room.protocol_number));
-
- response.add(ClientFlags(remove_flags(&[Flags::InRoom]), vec![client.nick.clone()]).send_all());
-}
-
-pub fn change_master(
- server: &mut HWServer,
- room_id: RoomId,
- new_master_id: ClientId,
- response: &mut Response,
-) {
- let room = &mut server.rooms[room_id];
- if let Some(master_id) = room.master_id {
- server.clients[master_id].set_is_master(false);
- response.add(
- ClientFlags(
- remove_flags(&[Flags::RoomMaster]),
- vec![server.clients[master_id].nick.clone()],
- )
- .send_all()
- .in_room(room_id),
- )
- }
-
- room.master_id = Some(new_master_id);
- server.clients[new_master_id].set_is_master(true);
-
- response.add(
- ClientFlags(
- add_flags(&[Flags::RoomMaster]),
- vec![server.clients[new_master_id].nick.clone()],
- )
- .send_all()
- .in_room(room_id),
- );
-}
-
-pub fn enter_room(
- server: &mut HWServer,
- client_id: ClientId,
- room_id: RoomId,
- response: &mut Response,
-) {
- let nick = server.clients[client_id].nick.clone();
- server.move_to_room(client_id, room_id);
-
- response.add(RoomJoined(vec![nick.clone()]).send_all().in_room(room_id));
- response.add(ClientFlags(add_flags(&[Flags::InRoom]), vec![nick]).send_all());
- let nicks = server.collect_nicks(|(_, c)| c.room_id == Some(room_id));
- response.add(RoomJoined(nicks).send_self());
-
- get_room_teams(server, room_id, client_id, response);
-
- let room = &server.rooms[room_id];
- get_room_config(room, client_id, response);
-
- let mut flag_selectors = [
- (
- Flags::RoomMaster,
- server.collect_nicks(|(_, c)| c.is_master()),
- ),
- (Flags::Ready, server.collect_nicks(|(_, c)| c.is_ready())),
- (Flags::InGame, server.collect_nicks(|(_, c)| c.is_in_game())),
- ];
-
- for (flag, nicks) in &mut flag_selectors {
- response.add(ClientFlags(add_flags(&[*flag]), replace(nicks, vec![])).send_self());
- }
-
- if !room.greeting.is_empty() {
- response.add(
- ChatMsg {
- nick: "[greeting]".to_string(),
- msg: room.greeting.clone(),
- }
- .send_self(),
- );
- }
-}
-
-pub fn exit_room(server: &mut HWServer, client_id: ClientId, response: &mut Response, msg: &str) {
- let client = &mut server.clients[client_id];
-
- if let Some(room_id) = client.room_id {
- let room = &mut server.rooms[room_id];
-
- remove_client_from_room(client, room, response, msg);
-
- if !room.is_fixed() {
- if room.players_number == 0 {
- server.rooms.remove(room_id);
- } else if room.master_id == None {
- let new_master_id = server.room_clients(room_id).next();
- if let Some(new_master_id) = new_master_id {
- let new_master_nick = server.clients[new_master_id].nick.clone();
- let room = &mut server.rooms[room_id];
- room.master_id = Some(new_master_id);
- server.clients[new_master_id].set_is_master(true);
-
- if room.protocol_number < 42 {
- room.name = new_master_nick.clone();
- }
-
- room.set_join_restriction(false);
- room.set_team_add_restriction(false);
- room.set_unregistered_players_restriction(true);
-
- response.add(
- ClientFlags(add_flags(&[Flags::RoomMaster]), vec![new_master_nick])
- .send_all()
- .in_room(room.id),
- );
- }
- }
- }
- }
-}
-
-pub fn remove_client(server: &mut HWServer, response: &mut Response, msg: String) {
- let client_id = response.client_id();
- let client = &mut server.clients[client_id];
- let nick = client.nick.clone();
-
- exit_room(server, client_id, response, &msg);
-
- server.remove_client(client_id);
-
- response.add(LobbyLeft(nick, msg.to_string()).send_all());
- response.add(Bye("User quit: ".to_string() + &msg).send_self());
- response.remove_client(client_id);
-}
-
-pub fn get_room_update(
- room_name: Option<String>,
- room: &HWRoom,
- master: Option<&HWClient>,
- response: &mut Response,
-) {
- let update_msg = RoomUpdated(room_name.unwrap_or(room.name.clone()), room.info(master));
- response.add(update_msg.send_all().with_protocol(room.protocol_number));
-}
-
-pub fn get_room_config_impl(config: &RoomConfig, to_client: ClientId, response: &mut Response) {
- response.add(ConfigEntry("FULLMAPCONFIG".to_string(), config.to_map_config()).send(to_client));
- for cfg in config.to_game_config() {
- response.add(cfg.to_server_msg().send(to_client));
- }
-}
-
-pub fn get_room_config(room: &HWRoom, to_client: ClientId, response: &mut Response) {
- get_room_config_impl(room.active_config(), to_client, response);
-}
-
-pub fn get_teams<'a, I>(teams: I, to_client: ClientId, response: &mut Response)
-where
- I: Iterator<Item = &'a TeamInfo>,
-{
- for team in teams {
- response.add(TeamAdd(team.to_protocol()).send(to_client));
- response.add(TeamColor(team.name.clone(), team.color).send(to_client));
- response.add(HedgehogsNumber(team.name.clone(), team.hedgehogs_number).send(to_client));
- }
-}
-
-pub fn get_room_teams(
- server: &HWServer,
- room_id: RoomId,
- to_client: ClientId,
- response: &mut Response,
-) {
- let room = &server.rooms[room_id];
- let current_teams = match room.game_info {
- Some(ref info) => &info.teams_at_start,
- None => &room.teams,
- };
-
- get_teams(current_teams.iter().map(|(_, t)| t), to_client, response);
-}
-
-pub fn get_room_flags(
- server: &HWServer,
- room_id: RoomId,
- to_client: ClientId,
- response: &mut Response,
-) {
- let room = &server.rooms[room_id];
- if let Some(id) = room.master_id {
- response.add(
- ClientFlags(
- add_flags(&[Flags::RoomMaster]),
- vec![server.clients[id].nick.clone()],
- )
- .send(to_client),
- );
- }
- let nicks: Vec<_> = server
- .clients
- .iter()
- .filter(|(_, c)| c.room_id == Some(room_id) && c.is_ready())
- .map(|(_, c)| c.nick.clone())
- .collect();
- if !nicks.is_empty() {
- response.add(ClientFlags(add_flags(&[Flags::Ready]), nicks).send(to_client));
- }
-}
-
-pub fn apply_voting_result(
- server: &mut HWServer,
- room_id: RoomId,
- response: &mut Response,
- kind: VoteType,
-) {
- match kind {
- VoteType::Kick(nick) => {
- if let Some(client) = server.find_client(&nick) {
- if client.room_id == Some(room_id) {
- let id = client.id;
- response.add(Kicked.send(id));
- exit_room(server, id, response, "kicked");
- }
- }
- }
- VoteType::Map(None) => (),
- VoteType::Map(Some(name)) => {
- if let Some(location) = server.rooms[room_id].load_config(&name) {
- response.add(
- server_chat(location.to_string())
- .send_all()
- .in_room(room_id),
- );
- let room = &server.rooms[room_id];
- let room_master = if let Some(id) = room.master_id {
- Some(&server.clients[id])
- } else {
- None
- };
- get_room_update(None, room, room_master, response);
-
- for (_, client) in server.clients.iter() {
- if client.room_id == Some(room_id) {
- super::common::get_room_config(&server.rooms[room_id], client.id, response);
- }
- }
- }
- }
- VoteType::Pause => {
- if let Some(ref mut info) = server.rooms[room_id].game_info {
- info.is_paused = !info.is_paused;
- response.add(
- server_chat("Pause toggled.".to_string())
- .send_all()
- .in_room(room_id),
- );
- response.add(
- ForwardEngineMessage(vec![to_engine_msg(once(b'I'))])
- .send_all()
- .in_room(room_id),
- );
- }
- }
- VoteType::NewSeed => {
- let seed = thread_rng().gen_range(0, 1_000_000_000).to_string();
- let cfg = GameCfg::Seed(seed);
- response.add(cfg.to_server_msg().send_all().in_room(room_id));
- server.rooms[room_id].set_config(cfg);
- }
- VoteType::HedgehogsPerTeam(number) => {
- let r = &mut server.rooms[room_id];
- let nicks = r.set_hedgehogs_number(number);
-
- response.extend(
- nicks
- .into_iter()
- .map(|n| HedgehogsNumber(n, number).send_all().in_room(room_id)),
- );
- }
- }
-}
-
-fn add_vote(room: &mut HWRoom, response: &mut Response, vote: Vote) -> Option<bool> {
- let client_id = response.client_id;
- let mut result = None;
-
- if let Some(ref mut voting) = room.voting {
- if vote.is_forced || voting.votes.iter().all(|(id, _)| client_id != *id) {
- response.add(server_chat("Your vote has been counted.".to_string()).send_self());
- voting.votes.push((client_id, vote.is_pro));
- let i = voting.votes.iter();
- let pro = i.clone().filter(|(_, v)| *v).count();
- let contra = i.filter(|(_, v)| !*v).count();
- let success_quota = voting.voters.len() / 2 + 1;
- if vote.is_forced && vote.is_pro || pro >= success_quota {
- result = Some(true);
- } else if vote.is_forced && !vote.is_pro || contra > voting.voters.len() - success_quota
- {
- result = Some(false);
- }
- } else {
- response.add(server_chat("You already have voted.".to_string()).send_self());
- }
- } else {
- response.add(server_chat("There's no voting going on.".to_string()).send_self());
- }
-
- result
-}
-
-pub fn submit_vote(server: &mut HWServer, vote: Vote, response: &mut Response) {
- let client_id = response.client_id;
- let client = &server.clients[client_id];
-
- if let Some(room_id) = client.room_id {
- let room = &mut server.rooms[room_id];
-
- if let Some(res) = add_vote(room, response, vote) {
- response.add(
- server_chat("Voting closed.".to_string())
- .send_all()
- .in_room(room.id),
- );
- let voting = replace(&mut room.voting, None).unwrap();
- if res {
- apply_voting_result(server, room_id, response, voting.kind);
- }
- }
- }
-}
-
-pub fn start_game(server: &mut HWServer, room_id: RoomId, response: &mut Response) {
- let (room_clients, room_nicks): (Vec<_>, Vec<_>) = server
- .clients
- .iter()
- .map(|(id, c)| (id, c.nick.clone()))
- .unzip();
- let room = &mut server.rooms[room_id];
-
- if !room.has_multiple_clans() {
- response.add(
- Warning("The game can't be started with less than two clans!".to_string()).send_self(),
- );
- } else if room.protocol_number <= 43 && room.players_number != room.ready_players_number {
- response.add(Warning("Not all players are ready".to_string()).send_self());
- } else if room.game_info.is_some() {
- response.add(Warning("The game is already in progress".to_string()).send_self());
- } else {
- room.start_round();
- for id in room_clients {
- let c = &mut server.clients[id];
- c.set_is_in_game(true);
- c.team_indices = room.client_team_indices(c.id);
- }
- response.add(RunGame.send_all().in_room(room.id));
- response.add(
- ClientFlags(add_flags(&[Flags::InGame]), room_nicks)
- .send_all()
- .in_room(room.id),
- );
-
- let room_master = if let Some(id) = room.master_id {
- Some(&server.clients[id])
- } else {
- None
- };
- get_room_update(None, room, room_master, response);
- }
-}
-
-pub fn end_game(server: &mut HWServer, room_id: RoomId, response: &mut Response) {
- let room = &mut server.rooms[room_id];
- room.ready_players_number = 1;
- let room_master = if let Some(id) = room.master_id {
- Some(&server.clients[id])
- } else {
- None
- };
- get_room_update(None, room, room_master, response);
- response.add(RoundFinished.send_all().in_room(room_id));
-
- if let Some(info) = replace(&mut room.game_info, None) {
- for (_, client) in server.clients.iter() {
- if client.room_id == Some(room_id) && client.is_joined_mid_game() {
- super::common::get_room_config(room, client.id, response);
- response.extend(
- info.left_teams
- .iter()
- .map(|name| TeamRemove(name.clone()).send(client.id)),
- );
- }
- }
- }
-
- let nicks: Vec<_> = server
- .clients
- .iter_mut()
- .filter(|(_, c)| c.room_id == Some(room_id))
- .map(|(_, c)| {
- c.set_is_ready(c.is_master());
- c.set_is_joined_mid_game(false);
- c
- })
- .filter_map(|c| {
- if !c.is_master() {
- Some(c.nick.clone())
- } else {
- None
- }
- })
- .collect();
-
- if !nicks.is_empty() {
- let msg = if room.protocol_number < 38 {
- LegacyReady(false, nicks)
- } else {
- ClientFlags(remove_flags(&[Flags::Ready]), nicks)
- };
- response.add(msg.send_all().in_room(room_id));
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
- use crate::protocol::messages::HWServerMessage::ChatMsg;
- use crate::server::actions::PendingMessage;
-
- fn reply2string(r: HWServerMessage) -> String {
- match r {
- ChatMsg { msg: p, .. } => String::from(p),
- _ => panic!("expected a ChatMsg"),
- }
- }
-
- fn run_handle_test(opts: Vec<String>) {
- let opts2 = opts.clone();
- for opt in opts {
- while reply2string(rnd_reply(&opts2)) != opt {}
- }
- }
-
- /// This test terminates almost surely.
- #[test]
- fn test_handle_rnd_empty() {
- run_handle_test(vec![])
- }
-
- /// This test terminates almost surely.
- #[test]
- fn test_handle_rnd_nonempty() {
- run_handle_test(vec!["A".to_owned(), "B".to_owned(), "C".to_owned()])
- }
-
- /// This test terminates almost surely (strong law of large numbers)
- #[test]
- fn test_distribution() {
- let eps = 0.000001;
- let lim = 0.5;
- let opts = vec![0.to_string(), 1.to_string()];
- let mut ones = 0;
- let mut tries = 0;
-
- while tries < 1000 || ((ones as f64 / tries as f64) - lim).abs() >= eps {
- tries += 1;
- if reply2string(rnd_reply(&opts)) == 1.to_string() {
- ones += 1;
- }
- }
- }
-}