#include <Servo.h>

Servo servo ;

int eastLDR = 0;
int westLDR = 1;

int east = 0;
int west = 0;

int delta = 0;
int servoposition = 90;

void setup() {
  servo.attach(10);
}

void loop() {
  east = analogRead(eastLDR);
  west = analogRead(westLDR);

  if (east < 350 && west < 350){
    while (servoposition <= 150)
    {
      servoposition++;
      servo.write(servoposition);
      delay(100);
    }
  }

  delta = east - west;

  if (delta > 15){
    if (servoposition <= 150)
    {
      servoposition++;
      servo.write(servoposition);
    }
  }
  else if(delta < -15){
    if (servoposition > 20)
    {
      servoposition--;
      servo.write(servoposition);
    }
  }
  delay(100);
}