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 readVal;
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 enable = false;
bool dir =false;
int motorSpeed;
// to make motor on or off

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);
  delay (5);
  //tested button that controls on or off
  if (newPressON ==1 && newPressON != oldPressON)
  {
    enable = !enable;
    //! means opposite (true to false, and false to true)
    //booleans are digital inputs
  }

newDir = digitalRead (directionPin);
delay (5);
if(newDir == 1 && newDir != oldDir)
{
  dir = !dir;
}
if (enable)
{
  motorSpeed = analogRead(potPin);
  motorSpeed =map(motorSpeed, 0, 1023, 0, 255);
  if (dir)
  {
    digitalWrite(controlPin1, HIGH);
    digitalWrite(controlPin2, LOW);
    analogWrite(enablePin, motorSpeed);
  }
  else
  {
    digitalWrite(controlPin1, LOW);
    digitalWrite(controlPin2, HIGH);
    analogWrite(enablePin, motorSpeed);
  }
}
else
{
  analogWrite(enablePin,0);
}
oldPressON =newPressON;
oldDir =newDir;
 //tested button that controls direction
 if (newDir ==1)
  {
    enable = !enable;
  }

readVal = analogRead(potPin);
readVal = map(readVal, 0, 1023, 0, 255);
}
//tested potentiometer