DC motor fan code

/*
 * Manvi Mittal
 * DC motor
 */

const int controlPin1 = 2;
const int controlPin2 = 3;
const int enablePin = 9;
const int directionSwitchPin = 4;
const int onOffSwitchStateSwitchPin = 5;
const int potPin = A0;

int onOffSwitchState = 0;
int previousOnOffSwitchState = 0;
int directionSwitchState = 0;
int previousDirectionSwitchState = 0;
int motorEnabled = 0; //Turns the motor on/off
int motorSpeed = 0;
int motorDirection = 1;

void setup()
{
  // put your setup code here, to run once:
  pinMode (directionSwitchPin, INPUT);
  pinMode (onOffSwitchStateSwitchPin, INPUT);
  pinMode (potPin, INPUT);
  pinMode (controlPin1, OUTPUT);
  pinMode (controlPin2, OUTPUT);
  pinMode (enablePin, OUTPUT);

  Serial.begin (9600);

  digitalWrite (enablePin, LOW);
}

void loop()
{
  // put your main code here, to run repeatedly:
  onOffSwitchState = digitalRead (onOffSwitchStateSwitchPin); // read the value of the on/off switch
  delay (1);
  Serial.print(onOffSwitchState);
  directionSwitchState = digitalRead (directionSwitchPin); // read the value of the direction switch
  Serial.println (directionSwitchState);
  motorSpeed = analogRead (potPin) / 4; // read the value of the pot and divide by 4 to get a value

  if (onOffSwitchState != previousOnOffSwitchState)
  {
    if (onOffSwitchState == HIGH)
    {
      motorEnabled = !motorEnabled;
    }
  }
  if (directionSwitchState != previousDirectionSwitchState)
  {
    if (directionSwitchState == HIGH)
    {
      motorDirection = !motorDirection;
    }
  }
  if (motorDirection == 1)
  {
    digitalWrite (controlPin1, HIGH);
    digitalWrite (controlPin2, LOW);
  }
  else
  {
    digitalWrite (controlPin1, LOW);
    digitalWrite (controlPin2, HIGH);
  }
  if (motorEnabled == 1)
  {
    analogWrite (enablePin, motorSpeed);
  }
  else
  {
    analogWrite (enablePin, 0);
  }
  previousDirectionSwitchState = directionSwitchState;
  previousOnOffSwitchState = onOffSwitchState;
}