use std::{
io, io::Write,
iter::once,
mem::replace
};
use super::{
server::HWServer,
room::{GameInfo, RoomFlags},
client::HWClient,
coretypes::{ClientId, RoomId, GameCfg, VoteType},
room::HWRoom,
handlers
};
use crate::{
protocol::messages::{
HWProtocolMessage,
HWServerMessage,
HWServerMessage::*,
server_chat
},
utils::to_engine_msg
};
use rand::{thread_rng, Rng, distributions::Uniform};
pub enum Destination {
ToId(ClientId),
ToSelf,
ToAll {
room_id: Option<RoomId>,
protocol: Option<u16>,
skip_self: bool
}
}
pub struct PendingMessage {
pub destination: Destination,
pub message: HWServerMessage
}
impl PendingMessage {
pub fn send(message: HWServerMessage, client_id: ClientId) -> PendingMessage {
PendingMessage{ destination: Destination::ToId(client_id), message}
}
pub fn send_self(message: HWServerMessage) -> PendingMessage {
PendingMessage{ destination: Destination::ToSelf, message }
}
pub fn send_all(message: HWServerMessage) -> PendingMessage {
let destination = Destination::ToAll {
room_id: None,
protocol: None,
skip_self: false,
};
PendingMessage{ destination, message }
}
pub fn in_room(mut self, clients_room_id: RoomId) -> PendingMessage {
if let Destination::ToAll {ref mut room_id, ..} = self.destination {
*room_id = Some(clients_room_id)
}
self
}
pub fn with_protocol(mut self, protocol_number: u16) -> PendingMessage {
if let Destination::ToAll {ref mut protocol, ..} = self.destination {
*protocol = Some(protocol_number)
}
self
}
pub fn but_self(mut self) -> PendingMessage {
if let Destination::ToAll {ref mut skip_self, ..} = self.destination {
*skip_self = true
}
self
}
pub fn action(self) -> Action { Send(self) }
}
impl Into<Action> for PendingMessage {
fn into(self) -> Action { self.action() }
}
impl HWServerMessage {
pub fn send(self, client_id: ClientId) -> PendingMessage { PendingMessage::send(self, client_id) }
pub fn send_self(self) -> PendingMessage { PendingMessage::send_self(self) }
pub fn send_all(self) -> PendingMessage { PendingMessage::send_all(self) }
}
pub enum Action {
Send(PendingMessage),
RemoveClient,
ByeClient(String),
ReactProtocolMessage(HWProtocolMessage),
CheckRegistered,
JoinLobby,
AddRoom(String, Option<String>),
RemoveRoom(RoomId),
MoveToRoom(RoomId),
MoveToLobby(String),
ChangeMaster(RoomId, Option<ClientId>),
RemoveTeam(String),
RemoveClientTeams,
SendRoomUpdate(Option<String>),
StartRoomGame(RoomId),
SendTeamRemovalMessage(String),
FinishRoomGame(RoomId),
SendRoomData{to: ClientId, teams: bool, config: bool, flags: bool},
AddVote{vote: bool, is_forced: bool},
ApplyVoting(VoteType, RoomId),
Warn(String),
ProtocolError(String)
}
use self::Action::*;
pub fn run_action(server: &mut HWServer, client_id: usize, action: Action) {
match action {
Send(msg) => server.send(client_id, &msg.destination, msg.message),
ByeClient(msg) => {
let c = &server.clients[client_id];
let nick = c.nick.clone();
if let Some(id) = c.room_id{
if id != server.lobby_id {
server.react(client_id, vec![
MoveToLobby(format!("quit: {}", msg.clone()))]);
}
}
server.react(client_id, vec![
LobbyLeft(nick, msg.clone()).send_all().action(),
Bye(msg).send_self().action(),
RemoveClient]);
},
RemoveClient => {
server.removed_clients.push(client_id);
if server.clients.contains(client_id) {
server.clients.remove(client_id);
}
},
ReactProtocolMessage(msg) =>
handlers::handle(server, client_id, msg),
CheckRegistered => {
let client = &server.clients[client_id];
if client.protocol_number > 0 && client.nick != "" {
let has_nick_clash = server.clients.iter().any(
|(id, c)| id != client_id && c.nick == client.nick);
let actions = if !client.is_checker() && has_nick_clash {
if client.protocol_number < 38 {
vec![ByeClient("Nickname is already in use".to_string())]
} else {
server.clients[client_id].nick.clear();
vec![Notice("NickAlreadyInUse".to_string()).send_self().action()]
}
} else {
vec![JoinLobby]
};
server.react(client_id, actions);
}
},
JoinLobby => {
server.clients[client_id].room_id = Some(server.lobby_id);
let mut lobby_nicks = Vec::new();
for (_, c) in server.clients.iter() {
if c.room_id.is_some() {
lobby_nicks.push(c.nick.clone());
}
}
let joined_msg = LobbyJoined(lobby_nicks);
let everyone_msg = LobbyJoined(vec![server.clients[client_id].nick.clone()]);
let flags_msg = ClientFlags(
"+i".to_string(),
server.clients.iter()
.filter(|(_, c)| c.room_id.is_some())
.map(|(_, c)| c.nick.clone())
.collect());
let server_msg = ServerMessage("\u{1f994} is watching".to_string());
let rooms_msg = Rooms(server.rooms.iter()
.filter(|(id, _)| *id != server.lobby_id)
.flat_map(|(_, r)|
r.info(r.master_id.map(|id| &server.clients[id])))
.collect());
server.react(client_id, vec![
everyone_msg.send_all().but_self().action(),
joined_msg.send_self().action(),
flags_msg.send_self().action(),
server_msg.send_self().action(),
rooms_msg.send_self().action(),
]);
},
AddRoom(name, password) => {
let room_id = server.add_room();;
let r = &mut server.rooms[room_id];
let c = &mut server.clients[client_id];
r.master_id = Some(c.id);
r.name = name;
r.password = password;
r.protocol_number = c.protocol_number;
let actions = vec![
RoomAdd(r.info(Some(&c))).send_all()
.with_protocol(r.protocol_number).action(),
MoveToRoom(room_id)];
server.react(client_id, actions);
},
RemoveRoom(room_id) => {
let r = &mut server.rooms[room_id];
let actions = vec![RoomRemove(r.name.clone()).send_all()
.with_protocol(r.protocol_number).action()];
server.rooms.remove(room_id);
server.react(client_id, actions);
}
MoveToRoom(room_id) => {
let r = &mut server.rooms[room_id];
let c = &mut server.clients[client_id];
r.players_number += 1;
c.room_id = Some(room_id);
let is_master = r.master_id == Some(c.id);
c.set_is_master(is_master);
c.set_is_ready(is_master);
c.set_is_joined_mid_game(false);
if is_master {
r.ready_players_number += 1;
}
let mut v = vec![
RoomJoined(vec![c.nick.clone()]).send_all().in_room(room_id).action(),
ClientFlags("+i".to_string(), vec![c.nick.clone()]).send_all().action(),
SendRoomUpdate(None)];
if !r.greeting.is_empty() {
v.push(ChatMsg {nick: "[greeting]".to_string(), msg: r.greeting.clone()}
.send_self().action());
}
if !c.is_master() {
let team_names: Vec<_>;
if let Some(ref mut info) = r.game_info {
c.set_is_in_game(true);
c.set_is_joined_mid_game(true);
{
let teams = info.client_teams(c.id);
c.teams_in_game = teams.clone().count() as u8;
c.clan = teams.clone().next().map(|t| t.color);
team_names = teams.map(|t| t.name.clone()).collect();
}
if !team_names.is_empty() {
info.left_teams.retain(|name|
!team_names.contains(&name));
info.teams_in_game += team_names.len() as u8;
r.teams = info.teams_at_start.iter()
.filter(|(_, t)| !team_names.contains(&t.name))
.cloned().collect();
}
} else {
team_names = Vec::new();
}
v.push(SendRoomData{ to: client_id, teams: true, config: true, flags: true});
if let Some(ref info) = r.game_info {
v.push(RunGame.send_self().action());
v.push(ClientFlags("+g".to_string(), vec![c.nick.clone()])
.send_all().in_room(r.id).action());
v.push(ForwardEngineMessage(
vec![to_engine_msg("e$spectate 1".bytes())])
.send_self().action());
v.push(ForwardEngineMessage(info.msg_log.clone())
.send_self().action());
for name in &team_names {
v.push(ForwardEngineMessage(
vec![to_engine_msg(once(b'G').chain(name.bytes()))])
.send_all().in_room(r.id).action());
}
if info.is_paused {
v.push(ForwardEngineMessage(vec![to_engine_msg(once(b'I'))])
.send_all().in_room(r.id).action())
}
}
}
server.react(client_id, v);
}
SendRoomData {to, teams, config, flags} => {
let mut actions = Vec::new();
let room_id = server.clients[client_id].room_id;
if let Some(r) = room_id.and_then(|id| server.rooms.get(id)) {
if config {
actions.push(ConfigEntry("FULLMAPCONFIG".to_string(), r.map_config())
.send(to).action());
for cfg in r.game_config() {
actions.push(cfg.to_server_msg().send(to).action());
}
}
if teams {
let current_teams = match r.game_info {
Some(ref info) => &info.teams_at_start,
None => &r.teams
};
for (owner_id, team) in current_teams.iter() {
actions.push(TeamAdd(HWRoom::team_info(&server.clients[*owner_id], &team))
.send(to).action());
actions.push(TeamColor(team.name.clone(), team.color)
.send(to).action());
actions.push(HedgehogsNumber(team.name.clone(), team.hedgehogs_number)
.send(to).action());
}
}
if flags {
if let Some(id) = r.master_id {
actions.push(ClientFlags("+h".to_string(), vec![server.clients[id].nick.clone()])
.send(to).action());
}
let nicks: Vec<_> = server.clients.iter()
.filter(|(_, c)| c.room_id == Some(r.id) && c.is_ready())
.map(|(_, c)| c.nick.clone()).collect();
if !nicks.is_empty() {
actions.push(ClientFlags("+r".to_string(), nicks)
.send(to).action());
}
}
}
server.react(client_id, actions);
}
AddVote{vote, is_forced} => {
let mut actions = Vec::new();
if let Some(r) = server.room(client_id) {
let mut result = None;
if let Some(ref mut voting) = r.voting {
if is_forced || voting.votes.iter().find(|(id, _)| client_id == *id).is_none() {
actions.push(server_chat("Your vote has been counted.".to_string())
.send_self().action());
voting.votes.push((client_id, vote));
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 is_forced && vote || pro >= success_quota {
result = Some(true);
} else if is_forced && !vote || contra > voting.voters.len() - success_quota {
result = Some(false);
}
} else {
actions.push(server_chat("You already have voted.".to_string())
.send_self().action());
}
} else {
actions.push(server_chat("There's no voting going on.".to_string())
.send_self().action());
}
if let Some(res) = result {
actions.push(server_chat("Voting closed.".to_string())
.send_all().in_room(r.id).action());
let voting = replace(&mut r.voting, None).unwrap();
if res {
actions.push(ApplyVoting(voting.kind, r.id));
}
}
}
server.react(client_id, actions);
}
ApplyVoting(kind, room_id) => {
let mut actions = Vec::new();
let mut id = client_id;
match kind {
VoteType::Kick(nick) => {
if let Some(c) = server.find_client(&nick) {
if c.room_id == Some(room_id) {
id = c.id;
actions.push(Kicked.send_self().action());
actions.push(MoveToLobby("kicked".to_string()));
}
}
},
VoteType::Map(None) => (),
VoteType::Map(Some(name)) => {
if let Some(location) = server.rooms[room_id].load_config(&name) {
actions.push(server_chat(location.to_string())
.send_all().in_room(room_id).action());
actions.push(SendRoomUpdate(None));
for (_, c) in server.clients.iter() {
if c.room_id == Some(room_id) {
actions.push(SendRoomData{
to: c.id, teams: false,
config: true, flags: false})
}
}
}
},
VoteType::Pause => {
if let Some(ref mut info) = server.rooms[room_id].game_info {
info.is_paused = !info.is_paused;
actions.push(server_chat("Pause toggled.".to_string())
.send_all().in_room(room_id).action());
actions.push(ForwardEngineMessage(vec![to_engine_msg(once(b'I'))])
.send_all().in_room(room_id).action());
}
},
VoteType::NewSeed => {
let seed = thread_rng().gen_range(0, 1_000_000_000).to_string();
let cfg = GameCfg::Seed(seed);
actions.push(cfg.to_server_msg().send_all().in_room(room_id).action());
server.rooms[room_id].set_config(cfg);
},
VoteType::HedgehogsPerTeam(number) => {
let r = &mut server.rooms[room_id];
let nicks = r.set_hedgehogs_number(number);
actions.extend(nicks.into_iter().map(|n|
HedgehogsNumber(n, number).send_all().in_room(room_id).action()
));
},
}
server.react(id, actions);
}
MoveToLobby(msg) => {
let mut actions = Vec::new();
let lobby_id = server.lobby_id;
if let (c, Some(r)) = server.client_and_room(client_id) {
r.players_number -= 1;
if c.is_ready() && r.ready_players_number > 0 {
r.ready_players_number -= 1;
}
if c.is_master() && (r.players_number > 0 || r.is_fixed()) {
actions.push(ChangeMaster(r.id, None));
}
actions.push(ClientFlags("-i".to_string(), vec![c.nick.clone()])
.send_all().action());
}
server.react(client_id, actions);
actions = Vec::new();
if let (c, Some(r)) = server.client_and_room(client_id) {
c.room_id = Some(lobby_id);
if r.players_number == 0 && !r.is_fixed() {
actions.push(RemoveRoom(r.id));
} else {
actions.push(RemoveClientTeams);
actions.push(RoomLeft(c.nick.clone(), msg)
.send_all().in_room(r.id).but_self().action());
actions.push(SendRoomUpdate(Some(r.name.clone())));
}
}
server.react(client_id, actions)
}
ChangeMaster(room_id, new_id) => {
let mut actions = Vec::new();
let room_client_ids = server.room_clients(room_id);
let new_id = if server.room(client_id).map(|r| r.is_fixed()).unwrap_or(false) {
new_id
} else {
new_id.or_else(||
room_client_ids.iter().find(|id| **id != client_id).cloned())
};
let new_nick = new_id.map(|id| server.clients[id].nick.clone());
if let (c, Some(r)) = server.client_and_room(client_id) {
match r.master_id {
Some(id) if id == c.id => {
c.set_is_master(false);
r.master_id = None;
actions.push(ClientFlags("-h".to_string(), vec![c.nick.clone()])
.send_all().in_room(r.id).action());
}
Some(_) => unreachable!(),
None => {}
}
r.master_id = new_id;
if !r.is_fixed() && c.protocol_number < 42 {
r.name.replace_range(.., new_nick.as_ref().map_or("[]", String::as_str));
}
r.set_join_restriction(false);
r.set_team_add_restriction(false);
let is_fixed = r.is_fixed();
r.set_unregistered_players_restriction(is_fixed);
if let Some(nick) = new_nick {
actions.push(ClientFlags("+h".to_string(), vec![nick])
.send_all().in_room(r.id).action());
}
}
if let Some(id) = new_id {
server.clients[id].set_is_master(true)
}
server.react(client_id, actions);
}
RemoveTeam(name) => {
let mut actions = Vec::new();
if let (c, Some(r)) = server.client_and_room(client_id) {
r.remove_team(&name);
if let Some(ref mut info) = r.game_info {
info.left_teams.push(name.clone());
}
actions.push(TeamRemove(name.clone()).send_all().in_room(r.id).action());
actions.push(SendRoomUpdate(None));
if r.game_info.is_some() && c.is_in_game() {
actions.push(SendTeamRemovalMessage(name));
}
}
server.react(client_id, actions);
},
RemoveClientTeams => {
if let (c, Some(r)) = server.client_and_room(client_id) {
let actions = r.client_teams(c.id).map(|t| RemoveTeam(t.name.clone())).collect();
server.react(client_id, actions);
}
}
SendRoomUpdate(old_name) => {
if let (c, Some(r)) = server.client_and_room(client_id) {
let name = old_name.unwrap_or_else(|| r.name.clone());
let actions = vec![RoomUpdated(name, r.info(Some(&c)))
.send_all().with_protocol(r.protocol_number).action()];
server.react(client_id, actions);
}
},
StartRoomGame(room_id) => {
let actions = {
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() {
vec![Warn("The game can't be started with less than two clans!".to_string())]
} else if room.protocol_number <= 43 && room.players_number != room.ready_players_number {
vec![Warn("Not all players are ready".to_string())]
} else if room.game_info.is_some() {
vec![Warn("The game is already in progress".to_string())]
} else {
room.start_round();
for id in room_clients {
let c = &mut server.clients[id];
c.set_is_in_game(false);
c.team_indices = room.client_team_indices(c.id);
}
vec![RunGame.send_all().in_room(room.id).action(),
SendRoomUpdate(None),
ClientFlags("+g".to_string(), room_nicks)
.send_all().in_room(room.id).action()]
}
};
server.react(client_id, actions);
}
SendTeamRemovalMessage(team_name) => {
let mut actions = Vec::new();
if let Some(r) = server.room(client_id) {
if let Some(ref mut info) = r.game_info {
let msg = once(b'F').chain(team_name.bytes());
actions.push(ForwardEngineMessage(vec![to_engine_msg(msg)]).
send_all().in_room(r.id).but_self().action());
info.teams_in_game -= 1;
if info.teams_in_game == 0 {
actions.push(FinishRoomGame(r.id));
}
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());
}
if info.sync_msg.is_some() {
info.sync_msg = None
}
info.msg_log.push(remove_msg.clone());
actions.push(ForwardEngineMessage(vec![remove_msg])
.send_all().in_room(r.id).but_self().action());
}
}
server.react(client_id, actions);
}
FinishRoomGame(room_id) => {
let mut actions = Vec::new();
let r = &mut server.rooms[room_id];
r.ready_players_number = 1;
actions.push(SendRoomUpdate(None));
actions.push(RoundFinished.send_all().in_room(r.id).action());
if let Some(info) = replace(&mut r.game_info, None) {
for (_, c) in server.clients.iter() {
if c.room_id == Some(room_id) && c.is_joined_mid_game() {
actions.push(SendRoomData{
to: c.id, teams: false,
config: true, flags: false});
for name in &info.left_teams {
actions.push(TeamRemove(name.clone())
.send(c.id).action());
}
}
}
}
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 r.protocol_number < 38 {
LegacyReady(false, nicks)
} else {
ClientFlags("-r".to_string(), nicks)
};
actions.push(msg.send_all().in_room(room_id).action());
}
server.react(client_id, actions);
}
Warn(msg) => {
run_action(server, client_id, Warning(msg).send_self().action());
}
ProtocolError(msg) => {
run_action(server, client_id, Error(msg).send_self().action())
}
}
}