DC Motor W/ H Bridge, Potentiometer, 2 Buttons

const int controlPin1 =2;
const int controlPin2 =3;
const int enablePin =9;
const int directionPin =4;
const int switchOnOff =5;
const int potPin =A0;
int motorSpeed;
bool oldPressON =false;
bool newPressON = false;
// used to distinguish btw button presses - if the old and the new values are different, it's a new press, if it is the same value, then it is not a new press
//booleans are either true or false, 0 or 1 -- on or off
//need to define two new boolean vars for the direction button too
bool oldDir = false;
bool newDir = false;
bool onoff = false;
// to make motor on or off
bool dir = false;

void setup() {
  // put your setup code here, to run once:
  pinMode (enablePin, OUTPUT);
  pinMode (controlPin1, OUTPUT);
  pinMode (controlPin2, OUTPUT);
  pinMode (directionPin, INPUT);
  pinMode (switchOnOff, INPUT);
  pinMode (potPin, INPUT);
  Serial.begin (9600);

}

void loop() {

  newPressON=digitalRead (switchOnOff);
  Serial.println (newPressON);
  delay (5);
  //tested button that controls on or off
  if (newPressON ==1 && newPressON=!oldPressON)
  //&& means and -- both conditions have to be true
  {
    onoff = !onoff;
    //! means opposite (true to false, and false to true)
    //booleans are digital inputs
  }

newDir = digitalRead (directionPin);
Serial.println (newDir);
 delay (5);
 //tested button that controls direction

motorSpeed = analogRead(potPin);
motorSpeed = map(motorSpeed, 0, 1023, 0, 255);
Serial.println (motorSpeed);
//tested potentiometer

if (newDir ==1 && newDir = !oldDir)
{
 dir = !dir;
}

if (onoff)
//if enable is true -- then turn motor on, map potentiometer, and go at speed of motorSpeed
{
  motorSpeed = analogRead(potPin);
  motorSpeed = map(motorSpeed, 0, 1023, 0, 255);
  if (dir)
  //if dir is true, then we move in this direction
  {
    digitalWrite (controlPin1, HIGH);
    digitalWrite (controlPin2, LOW);
    //either high, low or low, high -- switches positives and negatives
    analogWrite (enablePin, motorSpeed);
  }
  else {
    digitalWrite (controlPin1, LOW);
    digitalWrite (controlPin2, HIGH);
    //either high, low or low, high -- switches positives and negatives
    analogWrite (enablePin, motorSpeed);

  }

}

else {
  analogWrite (enablePin,0) ;
}

newPressON = oldPressON;
newDir = oldDir;
}