bevy_slinet 0.16.1

A simple networking plugin for bevy.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155

use std::sync::Arc;
use std::time::Duration;

use bevy::prelude::*;
use bevy_slinet::serializer::SerializerAdapter;

use bevy_slinet::client::ClientPlugin;
use bevy_slinet::packet_length_serializer::LittleEndian;
use bevy_slinet::protocols::udp::UdpProtocol;
use bevy_slinet::serializers::bincode::BincodeSerializer;
use bevy_slinet::server::{NewConnectionEvent, ServerPlugin};
use bevy_slinet::{client, server, ClientConfig, ServerConfig};
use bincode::{Decode, Encode};

struct Config;

impl ServerConfig for Config {
    type ClientPacket = ClientPacket;
    type ServerPacket = ServerPacket;
    type Protocol = UdpProtocol;
    type EncodeError = bincode::error::EncodeError;
    type DecodeError = bincode::error::DecodeError;
    fn build_serializer() -> SerializerAdapter<
        Self::ClientPacket,
        Self::ServerPacket,
        Self::EncodeError,
        Self::DecodeError,
    > {
        SerializerAdapter::ReadOnly(Arc::new(BincodeSerializer::default()))
    }
    type LengthSerializer = LittleEndian<u32>;
}

impl ClientConfig for Config {
    type ClientPacket = ClientPacket;
    type ServerPacket = ServerPacket;
    type Protocol = UdpProtocol;
    type EncodeError = bincode::error::EncodeError;
    type DecodeError = bincode::error::DecodeError;
    fn build_serializer() -> SerializerAdapter<
        Self::ServerPacket,
        Self::ClientPacket,
        Self::EncodeError,
        Self::DecodeError,
    > {
        SerializerAdapter::ReadOnly(Arc::new(BincodeSerializer::default()))
    }
    type LengthSerializer = LittleEndian<u32>;
}
#[derive(Debug, Decode, Encode)]
enum ServerPacket {
    Hello,
    Message(usize),
}

#[derive(Debug, Decode, Encode)]
enum ClientPacket {
    Hello,
    Reply(usize),
}

#[derive(Resource)]
struct ClientId(usize);

fn main() {
    let server = std::thread::spawn(move || {
        App::new()
            .add_plugins((
                MinimalPlugins,
                ServerPlugin::<Config>::bind("127.0.0.1:3000"),
            ))
            .add_observer(server_new_connection_system)
            .add_observer(server_packet_receive_system)
            .run();
    });
    println!("Waiting 1000ms to make sure the server has started");
    std::thread::sleep(Duration::from_millis(1000));
    for id in 0..10 {
        std::thread::spawn(move || {
            App::new()
                .add_plugins((
                    MinimalPlugins,
                    ClientPlugin::<Config>::connect("127.0.0.1:3000"),
                ))
                .insert_resource(ClientId(id))
                .add_observer(client_packet_receive_system)
                .run();
        });
    }
    server.join().unwrap();
}

fn server_new_connection_system(new_connection: On<NewConnectionEvent<Config>>) {
    new_connection
        .event()
        .connection
        .send(ServerPacket::Hello)
        .unwrap();
    println!(
        "Connection from {:?}",
        new_connection.event().connection.peer_addr()
    );
}

fn client_packet_receive_system(
    new_packet: On<client::PacketReceiveEvent<Config>>,
    client_number: Res<ClientId>,
) {
    match &new_packet.event().packet {
        ServerPacket::Hello => {
            println!("Server -> Client: Hello (client #{})", client_number.0);
            new_packet
                .event()
                .connection
                .send(ClientPacket::Hello)
                .unwrap();
        }
        ServerPacket::Message(i) => {
            println!("Server -> Client: {} (client #{})", i, client_number.0);
            new_packet
                .event()
                .connection
                .send(ClientPacket::Reply(*i))
                .unwrap();
        }
    }
}

fn server_packet_receive_system(new_packet: On<server::PacketReceiveEvent<Config>>) {
    match &new_packet.event().packet {
        ClientPacket::Hello => {
            println!(
                "Server <- Client {:04?}: Hello",
                new_packet.event().connection.id()
            );
            new_packet
                .event()
                .connection
                .send(ServerPacket::Message(0))
                .unwrap();
        }
        ClientPacket::Reply(i) => {
            println!(
                "Server <- Client {:04?}: {}",
                new_packet.event().connection.id(),
                i
            );
            new_packet
                .event()
                .connection
                .send(ServerPacket::Message(i + 1))
                .unwrap();
        }
    }
}