43 releases (8 breaking)

new 0.9.2 Jan 21, 2022
0.8.1 Dec 7, 2021
0.7.1 Nov 25, 2021

#73 in Game dev

Download history 30/week @ 2021-10-06 272/week @ 2021-10-13 224/week @ 2021-10-20 70/week @ 2021-10-27 59/week @ 2021-11-03 11/week @ 2021-11-10 38/week @ 2021-11-17 36/week @ 2021-11-24 66/week @ 2021-12-01 98/week @ 2021-12-08 142/week @ 2021-12-22 7/week @ 2021-12-29 83/week @ 2022-01-05 9/week @ 2022-01-12 33/week @ 2022-01-19

132 downloads per month
Used in game_chess_server

MIT license

72KB
1.5K SLoC

Rollo

A multiplayer framework based on Rust.



  • Tcp (support Tls).
  • Packet (command/payload).
  • Game Loop (Update).
  • Event Manager | example.
  • Interval Manager | example.
  • Dos protection | example.
  • Flatbuffers | example
[dependencies]
rollo = { version = "0.8.0", features = ["full"] }

Example

use rollo::{
    error::Error,
    game::GameTime,
    packet::to_bytes,
    packet::Packet,
    server::{ListenerSecurity, SocketTools, World, WorldSession, WorldSocketMgr},
    tokio, AtomicCell,
};
use std::{sync::Arc, time::Duration};

#[tokio::main]
async fn main() {
    // lazy_static works as well.
    let world = Box::leak(Box::new(MyWorld {
        game_time: AtomicCell::new(GameTime::new()),
    }));

    let mut socket_manager = WorldSocketMgr::new(world);
    // Run the server and the game loop with an interval (15ms)
    socket_manager
        .start_game_loop(Duration::from_millis(15))
        .start_network("127.0.0.1:6666", ListenerSecurity::Tcp)
        .await
        .unwrap();
}

struct MyWorld {
    game_time: AtomicCell<GameTime>,
}

impl World for MyWorld {
    type WorldSessionimplementer = MyWorldSession;
    fn update(&'static self, _diff: i64, game_time: GameTime) {
        println!("Update at : {}", game_time.timestamp);
    }

    // Your GameTime will be updated automatically. (Optional)
    fn game_time(&'static self) -> Option<&'static AtomicCell<GameTime>> {
        Some(&self.game_time)
    }
}

struct MyWorldSession {
    socket_tools: SocketTools,
}

#[rollo::async_trait]
impl WorldSession<MyWorld> for MyWorldSession {
    async fn on_open(
        tools: SocketTools,
        _world: &'static MyWorld,
    ) -> Result<std::sync::Arc<Self>, Error> {
        Ok(Arc::new(Self {
            socket_tools: tools,
        }))
    }

    fn socket_tools(&self) -> &SocketTools {
        &self.socket_tools
    }

    async fn on_message(world_session: &Arc<Self>, _world: &'static MyWorld, packet: Packet) {
        // If the message received is Login(1), send a response to the player.
        if packet.cmd == 1 {
            // Create a packet without payload
            let new_packet = to_bytes(10, None);
            let new_packet = new_packet;
            // Send it to the player
            world_session.socket_tools.send_data(new_packet.freeze());
        }
    }

    async fn on_close(_world_session: &Arc<Self>, _world: &'static MyWorld) {
        println!("Session closed");
    }
}

Packet

[Payload size(u32); Command(u16); Payload]

License

MIT license (LICENSE-MIT)

Dependencies

~0–3MB
~67K SLoC