bevy_veilid

Build 2-Player turn-based p2p games with Bevy and Veilid

This plugin makes it bearable to build p2p games with Bevy and Veilid by providing a sane API for encrypted p2p messanging in Bevy context.

https://github.com/stillonearth/bevy_veilid/assets/97428129/4c505eef-1dee-4ab4-b0e7-51262a3b3337

Compatibility

📝Features

• Event-Based: read and send event to communicate with other peer
• Turn-Based: no tick synchronization
• Anonymous: each run creates a new persona

👩‍💻 Usage

Refer to examples/pingpong for basic example.

1. Define a message to send over network

#[derive(Serialize, Deserialize, Debug, Clone, Default, Resource)]
struct SampleMessage {
    pub counter: i32,
    pub extra: String,
}

2. Attach plugin to bevy

fn main() {

    App::new()
        .add_plugins(DefaultPlugins)
        .add_plugins(VeilidPlugin::<SampleMessage>::default())
        .add_systems(
            Update,
            (
                on_ev_veilid_initialized,
                handle_ui_state,
                on_host_game,
                on_join_game,
                on_ev_awating_peer,
                on_ev_error,
                on_ev_veilid_message,
                on_ev_connected_peer,
                on_ev_change_counter,
            ),
        )
        .run();
}

3. Connect to systems

Events

• EventConnectedPeer
• EventError
• EventAwaitingPeer
• EventVeilidInitialized
• EventReceiveMessage
• EventSendMessage
• EventMessageSent

Resources

bevy_veilid will inject this into bevy

pub enum VeilidPluginStatus {
    Initializing,
    Initialized,
    ConnectedPeer,
    AwaitingPeer,
    Error,
}

💻 Under the hood

A full veilid instance will run in background with settings defined in veilid_duplex. veilid_duplex manages veilid internals and provides an API to send a message to another peer by refering each other with dht_keys unique for each run.

Examples

1. passing message with increment / decriment
2. WIP checkers on bevy