From 16726f2fbbe164965e84211268f8e7ffc0f1cb90 Mon Sep 17 00:00:00 2001 From: Adam <24621027+adoyle0@users.noreply.github.com> Date: Sat, 13 Apr 2024 21:04:42 -0400 Subject: [PATCH] the "I\'m a real server!" update --- Cargo.lock | 661 +++++++++++++++++++++++++++++++++++++++++++++ Cargo.toml | 8 + examples/client.rs | 47 ++++ readme.md | 5 + src/CAHd_game.rs | 27 +- src/main.rs | 82 +++++- 6 files changed, 819 insertions(+), 11 deletions(-) create mode 100644 examples/client.rs diff --git a/Cargo.lock b/Cargo.lock index b0c65fc..11e3f54 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2,21 +2,196 @@ # It is not intended for manual editing. version = 3 +[[package]] +name = "addr2line" +version = "0.21.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "8a30b2e23b9e17a9f90641c7ab1549cd9b44f296d3ccbf309d2863cfe398a0cb" +dependencies = [ + "gimli", +] + +[[package]] +name = "adler" +version = "1.0.2" +source = "registry+https://github.com/rust-lang/crates.io-index" 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"registry+https://github.com/rust-lang/crates.io-index" +checksum = "bec47e5bfd1bff0eeaf6d8b485cc1074891a197ab4225d504cb7a1ab88b02bf0" diff --git a/Cargo.toml b/Cargo.toml index 8956407..776473b 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -4,6 +4,14 @@ version = "0.1.0" edition = "2021" [dependencies] +futures-channel = "0.3.30" rand = "0.8.5" serde = { version = "1.0.197", features = ["derive"] } serde_json = "1.0.115" +futures-util = { version = "0.3.30", default-features = false, features = [ + "sink", + "std", +] } +tokio = { version = "1.37.0", features = ["full"] } +tokio-tungstenite = "*" +url = "2.5.0" diff --git a/examples/client.rs b/examples/client.rs new file mode 100644 index 0000000..1edb72f --- /dev/null +++ b/examples/client.rs @@ -0,0 +1,47 @@ +use std::env; + +use futures_util::{future, pin_mut, StreamExt}; +use tokio::io::{AsyncReadExt, AsyncWriteExt}; +use tokio_tungstenite::{connect_async, tungstenite::protocol::Message}; + +#[tokio::main] +async fn main() { + let connect_addr = + env::args().nth(1).unwrap_or_else(|| panic!("this program requires at least one argument")); + + let url = url::Url::parse(&connect_addr).unwrap(); + + let (stdin_tx, stdin_rx) = futures_channel::mpsc::unbounded(); + tokio::spawn(read_stdin(stdin_tx)); + + let (ws_stream, _) = connect_async(url).await.expect("Failed to connect"); + println!("WebSocket handshake has been successfully completed"); + + let (write, read) = ws_stream.split(); + + let stdin_to_ws = stdin_rx.map(Ok).forward(write); + let ws_to_stdout = { + read.for_each(|message| async { + let data = message.unwrap().into_data(); + tokio::io::stdout().write_all(&data).await.unwrap(); + }) + }; + + pin_mut!(stdin_to_ws, ws_to_stdout); + future::select(stdin_to_ws, ws_to_stdout).await; +} + +// Our helper method which will read data from stdin and send it along the +// sender provided. +async fn read_stdin(tx: futures_channel::mpsc::UnboundedSender) { + let mut stdin = tokio::io::stdin(); + loop { + let mut buf = vec![0; 1024]; + let n = match stdin.read(&mut buf).await { + Err(_) | Ok(0) => break, + Ok(n) => n, + }; + buf.truncate(n); + tx.unbounded_send(Message::binary(buf)).unwrap(); + } +} diff --git a/readme.md b/readme.md index b8905b5..d1b3bf5 100644 --- a/readme.md +++ b/readme.md @@ -5,6 +5,11 @@ A game master server for the popular game [Cards Against Humanity](https://www.c This started as a problem trying to play games with friends who are all on different platforms. This shall be as cross-platform as it gets. I want it to work on anything that can establish a connection and allow anyone to write any front-end they can dream up whether it be a web page, chat bot, VR, etc. Any clients who share a master server can play together across any platform. +## Dev stuff: + +`cargo run --example client ws:127.0.0.1:8080` to run test client + + ## TODO: * finish game logic * establish connectivity, probably websockets diff --git a/src/CAHd_game.rs b/src/CAHd_game.rs index 86b496c..49e6538 100644 --- a/src/CAHd_game.rs +++ b/src/CAHd_game.rs @@ -66,17 +66,17 @@ pub struct CAHPlayer { #[derive(Default)] pub struct CAHGame { /// The name of the game - game_name: String, + pub name: String, /// White draw pile - white: Vec, + pub white: Vec, /// Black draw pile - black: Vec, + pub black: Vec, /// White discard pile - white_discard: Vec, + pub jwhite_discard: Vec, /// Black discard pile - black_discard: Vec, + pub black_discard: Vec, /// Indicates game active/game over - game_active: bool, + pub game_active: bool, /// List of current players pub players: Vec, // /// Reference to current card czar @@ -95,6 +95,17 @@ pub struct NewGameRequest { pub packs: Vec, } +/// Game join request structure +pub struct GameJoinRequest { + /// Game id + pub id: u8, // string? + /// Game password + pub password: String, + /// Player info + pub player: CAHPlayer, +} + + impl CAHGame { /// Build game decks from input data for game start. /// This should only run once and at startup. @@ -115,7 +126,7 @@ impl CAHGame { ..Default::default() }; println!("Creating game {}", &request.name); - game.game_name = request.name; + game.name = request.name; game.build_decks(request.packs)?; game.create_player(request.host)?; @@ -124,6 +135,8 @@ impl CAHGame { Ok(game) } + // pub fn join(request:GameJoinRequest) + /// Log counts of current drawable cards /// For testing pub fn deck_counts(&self) { diff --git a/src/main.rs b/src/main.rs index 371cd82..89e592b 100644 --- a/src/main.rs +++ b/src/main.rs @@ -1,5 +1,79 @@ use serde_json::Result; use std::fs; +use std::{ + collections::HashMap, + env, + net::SocketAddr, + sync::{Arc, Mutex}, +}; + +use futures_channel::mpsc::{unbounded, UnboundedSender}; +use futures_util::{future, pin_mut, stream::TryStreamExt, StreamExt}; + +use tokio::net::{TcpListener, TcpStream}; +use tokio_tungstenite::tungstenite::protocol::Message; + +type Tx = UnboundedSender; +type PeerMap = Arc>>; + +async fn handle_connection(peer_map: PeerMap, raw_stream: TcpStream, addr: SocketAddr) { + println!("Incoming TCP connection from: {}", addr); + + let ws_stream = tokio_tungstenite::accept_async(raw_stream) + .await + .expect("Error during the websocket handshake occurred"); + println!("WebSocket connection established: {}", addr); + + // Insert the write part of this peer to the peer map. + let (tx, rx) = unbounded(); + peer_map.lock().unwrap().insert(addr, tx); + + let (outgoing, incoming) = ws_stream.split(); + + let broadcast_incoming = incoming.try_for_each(|msg| { + println!("Received a message from {}: {}", addr, msg.to_text().unwrap()); + let peers = peer_map.lock().unwrap(); + + // We want to broadcast the message to everyone except ourselves. + let broadcast_recipients = + peers.iter().filter(|(peer_addr, _)| peer_addr != &&addr).map(|(_, ws_sink)| ws_sink); + + for recp in broadcast_recipients { + recp.unbounded_send(msg.clone()).unwrap(); + } + + future::ok(()) + }); + + let receive_from_others = rx.map(Ok).forward(outgoing); + + pin_mut!(broadcast_incoming, receive_from_others); + future::select(broadcast_incoming, receive_from_others).await; + + println!("{} disconnected", &addr); + peer_map.lock().unwrap().remove(&addr); +} + +#[tokio::main] +async fn main() -> Result<()> { + test()?; + + let addr = env::args().nth(1).unwrap_or_else(|| "127.0.0.1:8080".to_string()); + + let state = PeerMap::new(Mutex::new(HashMap::new())); + + // Create the event loop and TCP listener we'll accept connections on. + let try_socket = TcpListener::bind(&addr).await; + let listener = try_socket.expect("Failed to bind"); + println!("\nListening on: {}", addr); + + // Let's spawn the handling of each connection in a separate task. + while let Ok((stream, addr)) = listener.accept().await { + tokio::spawn(handle_connection(state.clone(), stream, addr)); + } + + Ok(()) +} #[allow(non_snake_case)] pub mod CAHd_game; @@ -13,7 +87,7 @@ fn load_json(path: &str) -> Result> { Ok(jayson) } -fn main() -> Result<()> { +fn test() -> Result<()> { // choose decks let cards_input_path: &str = "data/cah-cards-full.json"; @@ -47,14 +121,14 @@ fn main() -> Result<()> { packs: chosen_packs, }; - games.push(CAHGame::new( - test_game0 - )?); + games.push(CAHGame::new(test_game0)?); // a new game request struct but this player is a player games[0].create_player(test_player1)?; // start round games[0].game_start()?; + + println!("\nGame Summary\n============\n{}", games[0].name); Ok(()) }