#include <Arduino.h>
#include <Servo.h>

Servo servo1;
Servo servo2;
int x_key = A1;                                               
int y_key = A0;                                               
int x_pos;
int y_pos;
int servo1_pin = 8;
int servo2_pin = 9;
int initial_position1 = 180;
int initial_position2 = 180;

void setup ( ) {
Serial.begin (9600) ;
servo1.attach (servo1_pin ) ; 
servo2.attach (servo2_pin ) ; 
servo1.write (initial_position1);
servo2.write (initial_position2);
pinMode (x_key, INPUT) ;                     
pinMode (y_key, INPUT) ;                      
}

void loop ( ) {
x_pos = analogRead (x_key) ;  
y_pos = analogRead (y_key) ;                      

if (x_pos < 300){
if (initial_position1 < 10) { 

} else{ initial_position1 = initial_position1 - 20; 
servo1.write ( initial_position1 ) ; 
delay (100) ;
} 
  } if (x_pos > 700){
if (initial_position1 > 180)
{  
}  
else{
initial_position1 = initial_position1 + 20;
servo1.write ( initial_position1 ) ;
//delay (100) ;
}
}

if (y_pos < 300){
if (initial_position2 < 10) { 

} 
  else{ initial_position2 = initial_position2 - 20; 
  servo2.write ( initial_position2 ) ; 
  delay (100) ;
} } if (y_pos > 700){
if (initial_position2 > 180)
{  
}        
else{
initial_position1 = initial_position1 + 20;
servo2.write ( initial_position2 ) ;
//delay (100) ;
}
}
}

// https://maker.pro/arduino/tutorial/how-to-control-servo-motors-with-an-arduino-and-joystick