DC Motor and Fan

/*
 * Atiriya Iyer
 * 6-20-17
 * Version 2
 * 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;
int motorSpeed= 0;
int motorDirection= 1;

void setup()
{
  // put your setup code here, to run once:
  pinMode (directionSwitchPin, INPUT);
  pinMode (potPin, INPUT);
  pinMode (onOffSwitchStateSwitchPin, INPUT);
  pinMode (controlPin1, OUTPUT);
  pinMode (controlPin2, OUTPUT);
  pinMode (enablePin, OUTPUT);
  digitalWrite (enablePin, LOW);
  Serial.begin (9600);
}

void loop()

{
  Serial.println (digitalRead (directionSwitchPin));
  Serial.println (digitalRead (onOffSwitchStateSwitchPin));
  // put your main code here, to run repeatedly:
  onOffSwitchState= digitalRead (onOffSwitchStateSwitchPin);
  delay(1);
  directionSwitchState =digitalRead (directionSwitchPin);

  motorSpeed= map (analogRead(potPin), 0, 1023, 0, 255);
  motorSpeed= constrain(motorSpeed, 0, 255);

  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;
}