Line Follower Robot Using Arduino & 1Sheeld

#define CUSTOM_SETTINGS
#define INCLUDE_TERMINAL_SHIELD
#define INCLUDE_COLOR_DETECTOR_SHIELD
#include <OneSheeld.h>

unsigned long white = 0xFFFFFF;
int motor1PWM = 3;
int motor1DIR = 4;
int motor2PWM = 6;
int motor2DIR = 7;

void setup() {
  OneSheeld.begin();
  ColorDetector.setOnSelected(&selected);
  pinMode(motor1PWM, OUTPUT);
  pinMode(motor1DIR, OUTPUT);
  pinMode(motor2PWM, OUTPUT);
  pinMode(motor2DIR, OUTPUT);
  
  digitalWrite(motor1DIR, LOW);
  digitalWrite(motor2DIR, HIGH);
}

void loop() {  
}

void selected()
{
  ColorDetector.setPalette(_3_BIT_RGB_PALETTE);
  ColorDetector.enableFullOperation();
  ColorDetector.setCalculationMode(MOST_DOMINANT_COLOR);
  ColorDetector.setOnNewColor(&newColor);
}

void newColor(Color one,Color two,Color three,Color four,Color five,Color six,Color seven,Color eight,Color nine)
{
  if (three == white && one == white)
  { moveForward(); }
  else if (three == white && one != white)
  { moveLeft(); }
  else if (one == white && three != white)
  { moveRight(); }
}

void moveForward()
{
  analogWrite(motor1PWM, 25);
  analogWrite(motor2PWM, 25);
  }

void moveRight()
{
  analogWrite(motor1PWM, 20);
  analogWrite(motor2PWM, 12);
  }

void moveLeft()
{
  analogWrite(motor1PWM, 12);
  analogWrite(motor2PWM, 20);
  }