2022-09-11 14:48:20 +00:00
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use std::sync::Arc;
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2022-09-15 15:45:52 +00:00
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use std::time::{Duration, Instant};
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2022-09-11 14:48:20 +00:00
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2022-09-15 15:45:52 +00:00
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use actix::prelude::*;
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2022-09-15 16:04:22 +00:00
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use actix::{Actor, Handler, StreamHandler};
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2022-09-11 14:48:20 +00:00
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use actix_web_actors::ws;
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use actix_web_actors::ws::{CloseCode, CloseReason, Message, ProtocolError, WebsocketContext};
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use uuid::Uuid;
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2022-09-15 15:37:26 +00:00
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use crate::data::{
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BoatsLayout, BotType, Coordinates, CurrentGameStatus, EndGameMap, FireResult, GameRules,
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};
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2022-09-11 14:58:40 +00:00
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use crate::game::{AddPlayer, Game};
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2022-09-11 14:48:20 +00:00
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use crate::human_player::HumanPlayer;
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use crate::random_bot::RandomBot;
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2022-09-15 15:45:52 +00:00
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/// How often heartbeat pings are sent
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const HEARTBEAT_INTERVAL: Duration = Duration::from_secs(10);
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/// How long before lack of client response causes a timeout
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const CLIENT_TIMEOUT: Duration = Duration::from_secs(120);
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2022-09-11 14:48:20 +00:00
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#[derive(Default, Debug)]
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pub enum StartMode {
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Bot(GameRules),
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#[default]
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AgainstHuman,
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}
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2022-09-14 16:02:11 +00:00
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#[derive(serde::Deserialize, serde::Serialize, Debug)]
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2022-09-11 15:03:13 +00:00
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#[serde(tag = "type")]
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pub enum ClientMessage {
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StopGame,
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BoatsLayout { layout: BoatsLayout },
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2022-09-14 16:30:33 +00:00
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Fire { location: Coordinates },
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2022-09-11 14:48:20 +00:00
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}
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#[derive(Message)]
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#[rtype(result = "()")]
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2022-09-14 16:02:11 +00:00
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#[derive(serde::Serialize, serde::Deserialize, Debug)]
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2022-09-11 15:03:13 +00:00
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#[serde(tag = "type")]
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2022-09-11 14:48:20 +00:00
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pub enum ServerMessage {
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WaitingForAnotherPlayer,
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2022-09-15 18:13:06 +00:00
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SetOpponentName {
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name: String,
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},
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2022-09-15 15:37:26 +00:00
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QueryBoatsLayout {
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rules: GameRules,
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},
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2022-09-15 16:04:22 +00:00
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RejectedBoatsLayout {
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errors: Vec<String>,
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},
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2022-09-12 14:38:14 +00:00
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WaitingForOtherPlayerConfiguration,
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OtherPlayerReady,
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GameStarting,
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OtherPlayerMustFire {
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status: CurrentGameStatus,
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},
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RequestFire {
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status: CurrentGameStatus,
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},
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StrikeResult {
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pos: Coordinates,
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result: FireResult,
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},
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OpponentStrikeResult {
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pos: Coordinates,
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result: FireResult,
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},
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LostGame {
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your_map: EndGameMap,
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opponent_map: EndGameMap,
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},
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WonGame {
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your_map: EndGameMap,
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opponent_map: EndGameMap,
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},
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2022-09-11 14:48:20 +00:00
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}
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pub struct HumanPlayerWS {
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inner: Option<Arc<HumanPlayer>>,
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pub start_mode: StartMode,
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hb: Instant,
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}
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impl Default for HumanPlayerWS {
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fn default() -> Self {
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Self {
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inner: None,
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start_mode: Default::default(),
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hb: Instant::now(),
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}
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}
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2022-09-11 14:48:20 +00:00
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}
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impl HumanPlayerWS {
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/// helper method that sends ping to client every second.
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///
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/// also this method checks heartbeats from client
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fn hb(&self, ctx: &mut <Self as Actor>::Context) {
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ctx.run_interval(HEARTBEAT_INTERVAL, |act, ctx| {
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// check client heartbeats
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if Instant::now().duration_since(act.hb) > CLIENT_TIMEOUT {
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// heartbeat timed out
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println!("Websocket Client heartbeat failed, disconnecting!");
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// stop actor
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ctx.stop();
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// don't try to send a ping
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return;
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}
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ctx.ping(b"");
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});
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}
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2022-09-11 14:48:20 +00:00
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fn send_message(&self, msg: ServerMessage, ctx: &mut <HumanPlayerWS as Actor>::Context) {
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ctx.text(serde_json::to_string(&msg).unwrap());
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}
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}
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impl Actor for HumanPlayerWS {
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type Context = WebsocketContext<Self>;
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fn started(&mut self, ctx: &mut Self::Context) {
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self.hb(ctx);
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2022-09-12 14:38:14 +00:00
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self.send_message(ServerMessage::WaitingForAnotherPlayer, ctx);
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2022-09-11 14:48:20 +00:00
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// Start game, according to appropriate start mode
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match &self.start_mode {
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StartMode::Bot(rules) => {
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2022-09-13 17:12:16 +00:00
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log::debug!("Start play with a bot");
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let game = Game::new(rules.clone()).start();
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2022-09-11 14:58:40 +00:00
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match rules.bot_type {
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BotType::Random => {
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game.do_send(AddPlayer(Arc::new(RandomBot::new(game.clone()))));
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}
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};
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let player = Arc::new(HumanPlayer {
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name: "Human".to_string(),
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game: game.clone(),
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player: ctx.address(),
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uuid: Uuid::new_v4(),
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});
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self.inner = Some(player.clone());
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2022-09-11 14:58:40 +00:00
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game.do_send(AddPlayer(player));
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}
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StartMode::AgainstHuman => {
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unimplemented!();
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}
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}
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}
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fn stopped(&mut self, _ctx: &mut Self::Context) {
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if let Some(player) = &self.inner {
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player.handle_client_message(ClientMessage::StopGame);
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}
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}
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}
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2022-09-15 15:37:26 +00:00
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impl StreamHandler<Result<ws::Message, ProtocolError>> for HumanPlayerWS {
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fn handle(&mut self, msg: Result<Message, ProtocolError>, ctx: &mut Self::Context) {
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match msg {
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2022-09-15 15:45:52 +00:00
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Ok(Message::Ping(msg)) => {
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self.hb = Instant::now();
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ctx.pong(&msg);
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}
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2022-09-11 14:48:20 +00:00
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Ok(Message::Binary(_bin)) => log::warn!("Got unsupported binary message!"),
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Ok(Message::Text(msg)) => match serde_json::from_str::<ClientMessage>(&msg) {
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Ok(msg) => match &self.inner {
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None => {
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log::error!("Client tried to send message without game!");
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ctx.text("No game yet!");
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}
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Some(p) => p.handle_client_message(msg),
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},
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Err(e) => log::warn!("Got invalid message from client! {:?}", e),
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},
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Ok(Message::Nop) => log::warn!("Got WS nop"),
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Ok(Message::Continuation(_)) => {
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log::warn!("Got unsupported continuation message!");
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}
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Ok(Message::Pong(_)) => {
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log::info!("Got pong message");
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2022-09-15 15:45:52 +00:00
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self.hb = Instant::now();
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}
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Ok(Message::Close(reason)) => {
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log::info!("Client asked to close this socket! reason={:?}", reason);
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ctx.close(Some(CloseReason::from(CloseCode::Away)));
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}
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Err(e) => log::warn!("Websocket protocol error! {:?}", e),
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}
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}
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}
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impl Handler<ServerMessage> for HumanPlayerWS {
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type Result = ();
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fn handle(&mut self, msg: ServerMessage, ctx: &mut Self::Context) -> Self::Result {
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ctx.text(serde_json::to_string(&msg).unwrap());
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}
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}
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