RoboDoom Code Fix

double CruiseControlSpeed = 50;
IMyTextPanel lcd;
IMyTextPanel statusLCD;
IMyTextPanel fancyLCD;
int lightState = 0;
double targetAccel = 0;
bool prevState = false;
bool done2 = false;
bool CruiseControl = false;
IMyShipController shipController = null;
Color colorOff = new Color(0, 0, 0);
Color colorOn = new Color(255,255,255);
Color colorRear = new Color(100,0,0,255);
Color colorYel = new Color(175,175,100,255);

public void Main(string argument)
{

    if (argument == "+5" && CruiseControlSpeed <=  95)
    {
        CruiseControlSpeed = CruiseControlSpeed + 5;
    }

    if (argument == "-5" && CruiseControlSpeed >= 15)
    {
        CruiseControlSpeed = CruiseControlSpeed - 5;
    }

    if (argument == "CC")
    {
        if (CruiseControl == false)
        {
            CruiseControl = true;
        }
        else
        {
            CruiseControl = false;
        }
    }

    shipController = GridTerminalSystem?.GetBlockWithName("shipController") as IMyShipController;

    if (shipController == null) //// error check
    {
        Echo("Aww shit! Aint no damn ship controllers yo!");
        return; //stops running the code
    }

    var hdg = shipController.MoveIndicator;

    lcd = GridTerminalSystem.GetBlockWithName("Speed Out") as IMyTextPanel;
    statusLCD = GridTerminalSystem.GetBlockWithName("Status LCD") as IMyTextPanel;
    lcd?.WritePublicText(""); //// added quesion marks

    var ToggledLights = GridTerminalSystem.GetBlockGroupWithName("LTOGGLE");
    var Toggled = new List<IMyInteriorLight>();
    ToggledLights?.GetBlocksOfType(Toggled);

    var RearLights = GridTerminalSystem.GetBlockGroupWithName("REAR");
    var RedLights = new List<IMyInteriorLight>();
    RearLights?.GetBlocksOfType(RedLights);

    var YellowLights = GridTerminalSystem.GetBlockGroupWithName("YEL");
    var YelLights = new List<IMyInteriorLight>();
    YellowLights?.GetBlocksOfType(YelLights);

    var BrekLights = GridTerminalSystem.GetBlockGroupWithName("BRK");
    var BRKLights = new List<IMyInteriorLight>();
    BrekLights?.GetBlocksOfType(BRKLights);


    ////Never differentiate variables by case. They should be descriptive
    //"wheels" should be something like "wheelGroup"
    //"Wheels" should then be named "wheels". Only methods start capital

    var wheelGroup = GridTerminalSystem.GetBlockGroupWithName("Wheels");
    var wheels = new List<IMyMotorSuspension>();
    wheelGroup?.GetBlocksOfType(wheels);

    var wheelStabilityGroup = GridTerminalSystem.GetBlockGroupWithName("WheelsExtend");
    var wheelStabilizers = new List<IMyMotorSuspension>();
    wheelStabilityGroup?.GetBlocksOfType(wheelStabilizers);

    ////
    /*
    question mark is a null check
    Means the same as:
    if (wheelGroup != null)
        wheelGroup.GetBlocksOfType(wheels);

    */

    PrintSpeed(shipController.GetShipSpeed());
    IMyReflectorLight spotlight = GridTerminalSystem.GetBlockWithName("Spotlight R") as IMyReflectorLight;

    if (spotlight.Enabled != prevState && spotlight != null) ////null check
    {
        lightState = lightState + 1;

        if (lightState > 2)
        {
            lightState = 0;
        }

        prevState = spotlight.Enabled;
    }

    if (lightState == 0)
    {
        foreach (IMyInteriorLight light in Toggled)

            light.SetValue("Color", colorOff);
        }

        foreach (IMyInteriorLight light in RedLights)
        {
            light.SetValue("Color", colorOff);
        }

        foreach (IMyInteriorLight light in YelLights)
        {
            light.SetValue("Color", colorYel);
        }

        IMyReflectorLight spotlight2 = GridTerminalSystem.GetBlockWithName("Spotlight") as IMyReflectorLight;

        spotlight2?.SetValue("Color", colorOff); ////null check

        statusLCD?.WritePublicText("LIGHTS Off"); ////null check
    }
    else if (lightState == 1)
    {
        foreach (IMyInteriorLight light in Toggled)
        {
            light.SetValue("Color", colorOn);
        }

        foreach (IMyInteriorLight light in RedLights)
        {
            light.SetValue("Color", colorYel);
        }

        foreach (IMyInteriorLight light in YelLights)
        {
            light.SetValue("Color", colorOn);
        }

        statusLCD?.WritePublicText("LIGHTS Low Beam"); ////null check
    }
    else if (lightState == 2)
    {
        IMyReflectorLight spotlight2 = GridTerminalSystem.GetBlockWithName("Spotlight") as IMyReflectorLight;
        spotlight2?.SetValue("Color", colorOn); ////null check
        statusLCD?.WritePublicText("LIGHTS High Beam"); ////null check
    }

        if (hdg.Z == -1 && done2 == false)
        {
            foreach(IMyMotorSuspension wheel in wheels)
                wheel.SetValue("Height", 40f); ////fixed single sillyness

            done2 = true;
        }
        else if (hdg.Z == 1 && done2 == false)
        {
            foreach(IMyMotorSuspension wheel in wheels)
                wheel.SetValue("Height", -30f); ////fixed single sillyness

            done2 = true;
        }
        else
        {
            done2 = false;
        }

    if(!shipController.HandBrake || CruiseControl == true)
    {
        foreach(IMyMotorSuspension wheel in wheels)
            wheel.SetValue("Friction", 0f); ////fixed single sillyness

        foreach (IMyInteriorLight light in BRKLights)
            light.SetValue("Color", colorOff);
    }
    else
    {
        foreach(IMyMotorSuspension wheel in wheels)
            wheel.SetValue("Friction", 40f); ////fixed single sillyness

        foreach (IMyInteriorLight light in BRKLights)
            light.SetValue("Color", colorRear);
    }

    if (shipController.GetShipSpeed() > 45)
    {
        foreach (IMyMotorSuspension wheel in wheelStabilizers)
        {
            var a = Single.Parse("40");
            wheel.SetValue("Height", a);
        }
        statusLCD.WritePublicText("\nSTABILITY Active\n", true);
    }
    else
    {
        foreach (IMyMotorSuspension wheel in wheelStabilizers)
        {
            var a = Single.Parse("-30");
            wheel.SetValue("Height", a);
        }
        statusLCD.WritePublicText("\nSTABILITY Inactive\n", true);
    }

    statusLCD.WritePublicText("Cruise Speed: " + CruiseControlSpeed.ToString(), true);

    if (CruiseControl == true)
    {

        var AccelThrusterGroup = GridTerminalSystem.GetBlockGroupWithName("ACL");
        var Accelerators = new List<IMyThrust>();
        AccelThrusterGroup.GetBlocksOfType(Accelerators);

        statusLCD.WritePublicText(" ACTIVE", true);

        if (!shipController.DampenersOverride)
        {
            shipController.ApplyAction("DampenersOverride");
        }

        lcd.WritePublicText(" CRUISE", true);

        if (shipController.GetShipSpeed() > CruiseControlSpeed)
        {

            var val = Single.Parse("40");

            foreach(IMyMotorSuspension wheel in wheels)
            {
                wheel.SetValue("Friction", val);
            }

            foreach(IMyThrust thruster in Accelerators)
            {
                var thrustPower = Single.Parse("0");

                thruster.SetValue("Override", thrustPower);

            }

        }
        else
        {
            targetAccel = (CruiseControlSpeed - shipController.GetShipSpeed()) * 100;

            foreach(IMyThrust thruster in Accelerators)
                thruster.SetValue("Override", (float)targetAccel); ////Got rid of the single sillyness
        }
    }
    else
    {
        var AccelThrusterGroup = GridTerminalSystem.GetBlockGroupWithName("ACL");
        var Accelerators = new List<IMyThrust>();
        AccelThrusterGroup.GetBlocksOfType(Accelerators);

        foreach(IMyThrust thruster in Accelerators)
            thruster.SetValue("Override", 0f); ////Got rid of the single sillyness
    }

    Echo($"Current Inst: {Runtime.CurrentInstructionCount}\nMax Inst:{Runtime.MaxInstructionCount}");

    fancyLCD = GridTerminalSystem.GetBlockWithName("Left Center LCD") as IMyTextPanel;
    fancyLCD?.WritePublicText(" Systems ONLINE\n ELEKTRON Speed Display Active\n ZIVATAR Ready to drive"); ////added question mark
}

// My Random Crap
static char rgb(byte r, byte g, byte b)
{
    return (char)(0xe100 + (r << 6) + (g << 3) + b);
}

void PrintSpeed(double spd)
{
    //ONLY CALL WRITEPUBLICTEXT() ONCE!!!!!11!!!1!!
    string line = new string(rgb(7, 0, 0), 20);
    string speedFill = new string(rgb(7, 7, 0), (int)(spd / 5));

    lcd.WritePublicText($"{line}\n{speedFill}\n{line}\nSpeed: {spd:N2} m/s");

    if (!shipController.DampenersOverride)
    {
        lcd?.WritePublicText(" DAMP OFF", true); ////added question mark
    }

}