class LightController
{
protected:
    int bjtCount;
    const int *bjtPins;
    int *bjtState;

private:
    void setAbsoluteState(const char data[], int index);
    void parseRelativeState(const char data[], int index, int steps);
    int clampState(int stateValue);
    void commitState(int index);
    void commitPinState(int index);

public:
    LightController(const int bjtPins[], int bjtCount);
    void updateState(const char data[], int steps);
    int getBjtCount();
    const int *getBjtPins();
    int *getBjtState();
};