#include <Servo.h>

Servo servo1;
Servo servo2;
int x_key = A1;
int y_key = A0;
int x_pos;
int y_pos;
int servo1_pin = 10;
int servo2_pin = 9;
int initial_position = 90;
int initial_position1 = 90;

void setup ( ) {
  Serial.begin (9600) ;
  servo1.attach (servo1_pin ) ;
  servo2.attach (servo2_pin ) ;
  servo1.write (initial_position);
  servo2.write (initial_position1);
  pinMode (x_key, INPUT) ;
  pinMode (y_key, INPUT) ;
}

void loop ( ) {
  x_pos = analogRead (x_key) ;
  x_pos = map(x_pos, 0, 1023, 0, 180);
  y_pos = analogRead (y_key) ;
  y_pos = map(y_pos, 0, 1023, 0, 90);

  if (x_pos < 70) {
    if (initial_position < 10) { }
    else {
      initial_position = initial_position - 8;
      servo1.write ( initial_position ) ;
      delay (100) ;
    }
  }
  if (x_pos > 100) {
    if (initial_position > 180) {}
    else {
      initial_position = initial_position + 8;
      servo1.write ( initial_position ) ;
      delay (100) ;
    }
  }
  if (y_pos < 35) {
    if (initial_position1 < 0) { }
    else {
      initial_position1 = initial_position1 - 8;
      servo2.write ( initial_position1 ) ;
      delay (100) ;
    }
  }
  if (y_pos > 50) {
    if (initial_position1 > 89) {}
    else {
      initial_position1 = initial_position1 + 8;
      servo2.write ( initial_position1 ) ;
      delay (100) ;
    }
  }
}