qnet

qNet

Simplified packet networking using Architectury's CustomPacketPayload.

Registering a Channel

public static final CustomPacketPayload.Type<MyPacket> TYPE =
    new CustomPacketPayload.Type<>(ResourceLocation.fromNamespaceAndPath("mymod", "my_packet"));

public static final StreamCodec<RegistryFriendlyByteBuf, MyPacket> CODEC =
    StreamCodec.of((buf, pkt) -> buf.writeInt(pkt.value()), buf -> new MyPacket(buf.readInt()));

public static void init() {
    QNet.registerChannel(TYPE, CODEC, (packet, ctx) -> {
        // runs on the correct thread via ctx.queue()
        Player player = ctx.getPlayer();
        // handle packet...
    });
}

Sending

// client -> server
channel.sendToServer(new MyPacket(42));

// server -> single player
channel.sendToPlayer(serverPlayer, new MyPacket(42));

// server -> everyone in level
channel.sendToAllPlayers(level, new MyPacket(42));

Notes

• QNet registers both C2S and S2C receivers for every channel. Use PacketChannel methods to control direction.
• CustomPacketPayload + StreamCodec is the 1.21 way. No more raw byte buffers.