@Override
    public void load(CompoundTag tag) {
        super.load(tag);
        gateState = tag.getByte("state");
    }
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