@Override
    public void readDesc(MCDataInput packet) {
        super.readDesc(packet);
        gateState = packet.readByte();
    }
Mapped inputs and outputs of the gate.
OOOO IIII
High nybble is output.
Low nybble is input
integration/src/main/java/mrtjp/projectred/integration/part/RedstoneGatePart.java