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2 Commits
6189b82bd3 ... master

Author SHA1 Message Date
Dane Johnson
368d6585c4 Refactor so game loop can hold "player" objects 2022-10-14 11:36:45 -05:00
Dane Johnson
92f7e5aa5f Add a little chat demo 2022-10-13 12:51:46 -05:00
4 changed files with 115 additions and 41 deletions
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68
public/index.html Normal file
View File

@@ -0,0 +1,68 @@
<!DOCTYPE html>
<html>
<body>
<script
src="https://code.jquery.com/jquery-3.6.1.slim.min.js"
integrity="sha256-w8CvhFs7iHNVUtnSP0YKEg00p9Ih13rlL9zGqvLdePA="
crossorigin="anonymous"
></script>
<h1 id="roomName">
Not Connected
</h1>
<div>
<button id="hostBtn" disabled>Host</button>
<input id="roomTxt" type="text">
<button id="joinBtn" disabled>Join</button>
</div>
<textarea readonly></textarea>
<div>
<input id="chatTxt" type="text" disabled>
<button id="chatBtn" disabled>Chat</button>
</div>
<script>
const ws = new WebSocket("ws://localhost:8080");
ws.addEventListener('open', e => {
$("#hostBtn").attr('disabled', false);
$("#joinBtn").attr('disabled', false);
});
$("#hostBtn").on('click', e => ws.send("HOST:"));
$("#joinBtn").on('click', e => {
const roomCode = $('#roomTxt').val();
const msg = `JOIN: ${roomCode}`;
ws.send(msg);
$("#roomName").text(roomCode);
});
$("#chatBtn").on('click', e => {
let text = $('#chatTxt').val();
$('#chatTxt').val('');
msg = `CHAT: ${text}`;
ws.send(msg);
});
ws.addEventListener('message', e => {
const msg = e.data;
const pos = msg.indexOf(':');
const command = msg.substring(0, pos);
const args = msg.substring(pos+1).split(',');
switch(command) {
case "ROOM_CODE":
$("#roomName").text(args[0]);
// Fallthrough
case "JOIN_OK":
$("#chatTxt").attr('disabled', false);
$("#chatBtn").attr('disabled', false);
break;
case "CHAT":
let text = $("textarea").val();
text = text += `${args[0]}\n`;
$("textarea").val(text);
default:
console.log("Unhandled message", msg);
}
});
</script>
</body>
</html>

17
src/client.rs
View File

@@ -1,5 +1,6 @@
use std::sync::Arc; use std::sync::Arc;
use tokio::sync::Mutex;
use futures::{select, FutureExt}; use futures::{select, FutureExt};
use crate::{msg, GlobalState}; use crate::{msg, GlobalState};
@@ -44,18 +45,23 @@ impl Client {
match msg.command.as_str() { match msg.command.as_str() {
"HOST" => { "HOST" => {
let room_code = self.global_state.code_generator.lock().await.generate(); let room_code = self.global_state.code_generator.lock().await.generate();
let game_controller = GameController::default(); let game_controller = Arc::new(Mutex::new(GameController::default()));
let (client_channel, server_channel) = channel_pair(); let (client_channel, server_channel) = channel_pair();
self.channel = Some(client_channel); self.channel = Some(client_channel);
game_controller.channels.lock().await.push(server_channel); game_controller.lock().await.push(server_channel);
self.global_state self.global_state
.rooms .rooms
.lock() .lock()
.await .await
.insert(room_code.clone(), game_controller.clone()); .insert(room_code.clone(), Arc::clone(&game_controller));
tokio::spawn(async move { game_controller.run_loop().await }); tokio::spawn(async move {
loop {
game_controller.lock().await.poll().await;
tokio::task::yield_now().await;
}
});
self.ws.send(msg!(ROOM_CODE, room_code)).await.unwrap(); self.ws.send(msg!(ROOM_CODE, room_code)).await.unwrap();
} }
"JOIN" => { "JOIN" => {
@@ -67,8 +73,9 @@ impl Client {
Some(room) => { Some(room) => {
let (client_channel, server_channel) = channel_pair(); let (client_channel, server_channel) = channel_pair();
self.channel = Some(client_channel); self.channel = Some(client_channel);
room.channels.lock().await.push(server_channel); room.lock().await.push(server_channel);
self.ws.send(msg!(JOIN_OK)).await.unwrap(); self.ws.send(msg!(JOIN_OK)).await.unwrap();
} }
None => { None => {
self.ws.send(msg!(JOIN_INVALID)).await.unwrap(); self.ws.send(msg!(JOIN_INVALID)).await.unwrap();

55
src/game.rs
View File

@@ -1,20 +1,17 @@
use std::sync::Arc; use tokio::sync::mpsc;
use tokio::sync::{ mpsc, Mutex };
use tokio::sync::mpsc::error::TryRecvError; use tokio::sync::mpsc::error::TryRecvError;
use crate::message::Message; use crate::message::Message;
#[derive(Clone)] struct Player {
pub struct GameController { name: String,
pub channels: Arc<Mutex<Channels>>, channel: Option<Channel>,
seat: Option<usize>,
} }
impl std::default::Default for GameController { #[derive(Default)]
fn default() -> Self { pub struct GameController {
let channels = Arc::new(Mutex::new(Channels::default())); players: Vec<Player>,
GameController { channels }
}
} }
pub struct Channel { pub struct Channel {
@@ -22,26 +19,32 @@ pub struct Channel {
pub rx: mpsc::Receiver<Message>, pub rx: mpsc::Receiver<Message>,
} }
#[derive(Default)] impl GameController {
pub struct Channels(Vec<Channel>);
impl Channels {
pub fn try_recv(&mut self) -> Result<Message, TryRecvError> { pub fn try_recv(&mut self) -> Result<Message, TryRecvError> {
for channel in self.0.iter_mut() { for player in self.players.iter_mut() {
if let Some(channel) = &mut player.channel {
let res = channel.rx.try_recv(); let res = channel.rx.try_recv();
if !(res == Err(TryRecvError::Empty)) { if !(res == Err(TryRecvError::Empty)) {
return res return res
} }
} }
}
Err(TryRecvError::Empty) Err(TryRecvError::Empty)
} }
pub async fn broadcast(&mut self, msg: Message) { pub async fn broadcast(&mut self, msg: Message) {
for channel in self.0.iter_mut() { for player in self.players.iter() {
if let Some(channel) = &player.channel {
channel.tx.send(msg.clone()).await.unwrap(); channel.tx.send(msg.clone()).await.unwrap();
} }
} }
}
pub fn push(&mut self, channel: Channel) { pub fn push(&mut self, channel: Channel) {
self.0.push(channel); let player = Player {
name: "Guest".to_string(),
channel: Some(channel),
seat: None, // TODO
};
self.players.push(player);
} }
} }
@@ -52,19 +55,15 @@ pub fn channel_pair() -> (Channel, Channel) {
} }
impl GameController { impl GameController {
pub async fn run_loop(&self) { pub async fn poll(&mut self) {
loop { if let Ok(msg) = self.try_recv() {
let mut channels = self.channels.lock().await; self.dispatch(msg).await;
if let Ok(msg) = channels.try_recv() {
dispatch(&mut channels, msg).await;
} }
} }
} async fn dispatch(&mut self, msg: Message) {
}
async fn dispatch(channels: &mut Channels, msg: Message) {
match msg.command.as_str() { match msg.command.as_str() {
"CHAT" => channels.broadcast(msg).await, "CHAT" => self.broadcast(msg).await,
_ => () _ => ()
}; };
} }
}

2
src/lib.rs
View File

@@ -14,5 +14,5 @@ use code_generator::CodeGenerator;
#[derive(Default)] #[derive(Default)]
pub struct GlobalState { pub struct GlobalState {
pub code_generator: Arc<Mutex<CodeGenerator>>, pub code_generator: Arc<Mutex<CodeGenerator>>,
pub rooms: Arc<Mutex<HashMap<String, GameController>>>, pub rooms: Arc<Mutex<HashMap<String, Arc<Mutex<GameController>>>>>,
} }