ControlWire interface proposal

final class SPWireState
{
    // State < 0: ошибка (несколько контроллеров)
    // State == 0: нейтральное состояние (такой ControllerState игнорируется)
    // State > 0: активное состояние (ControllerState распространяется по всему проводу)
    public int State;
    public float Voltage; // Current = Voltage * InvResistance

    public int ControllerState;
    public float ControllerVoltage;

    public int ActiveCount = 0;
    public float TotalInvResistance = 0.0f;

    public bool Active = false;
    public float InvResistance = 0.0f;

    public SPIntMap ControlWires;
};


final class SPVehicle
{

    /* ... */

    public SPIntMap GetControlWires(string name)
    {
        AssertNotDisposed();
        SPWireState wire = GetWire(name);
        if (wire)
            return wire.ControlWires;
        return null;
    }

    public SPIntMap GetControlWires(string name, bool neighbourDir)
    {
        AssertNotDisposed();
        int index = GetConnectionIndex(name);
        if (GetWireState(index, neighbourDir) == SPConnector.StateConnected)
            return GetNeighbour(neighbourDir).GetWire(name).ControlWires;
        return null;
    }

    public int GetCWState(string name, string wireName)
    {
        AssertNotDisposed();
        SPWireState wire = GetWire(name);
        if (wire and wire.ControlWires)
            return wire.ControlWires.Get(wireName, 0);
        return 0;
    }

    public void SetCWState(string name, string wireName, int value)
    {
        AssertNotDisposed();
        SPWireState wire = GetWire(name);
        if (wire and wire.ControlWires)
            wire.ControlWires.Set(wireName, value);
    }

    public SPIntMap GetNeighbourCWState(string wireName, bool neighbourDir, string wireName)
    {
        AssertNotDisposed();
        int index = GetConnectionIndex(name);
        if (GetWireState(index, neighbourDir) == SPConnector.StateConnected) {
            SPIntMap controlWires = GetNeighbour(neighbourDir).GetWire(name).ControlWires;
            if (controlWires)
                return controlWires.Get(wireName, 0);
        }
        return 0;
    }

    /* ... */

}