int x_pin = A1; 
int y_pin = A0; 
int button = 2; 
int y_val, x_val; 
 
 
 
int top = 9; 
int right = 3; 
int bot = 6; 
int left = 12; 
 
int top_r = 5; 
int top_l = 10; 
int bot_r = 4; 
int bot_l = 11; 
 
int mid = 13; 
void setup() { 
  pinMode(button, INPUT_PULLUP); 
 
  pinMode(top, OUTPUT); 
  pinMode(right, OUTPUT); 
  pinMode(left, OUTPUT); 
  pinMode(bot, OUTPUT); 
 
  pinMode(top_r, OUTPUT); 
  pinMode(top_l, OUTPUT); 
  pinMode(bot_r, OUTPUT); 
  pinMode(bot_l, OUTPUT); 
 
} 
 
void loop() { 
  x_val = analogRead(x_pin); 
  y_val = analogRead(y_pin); 
  Check(); 
  clear(); 
 
} 
 
void Check(){ 
   
 if(x_val == 0 && y_val == 1023){ 
    digitalWrite(top_r, HIGH); 
  } 
  else if(x_val == 1023 && y_val == 1023){ 
    digitalWrite(top_l, HIGH); 
  } 
  else if(x_val == 0 && y_val == 0){ 
    digitalWrite(bot_r, HIGH); 
  } 
  else if(x_val == 1023 && y_val == 0){ 
    digitalWrite(bot_l, HIGH); 
  } 
  else{ 
    switch (x_val){ 
    case 0: 
    digitalWrite(right, HIGH); 
    case 512: 
      //x_button_state = 0; 
      break; 
    case 1023: 
      digitalWrite(left, HIGH); 
      break; 
    //default: 
      //x_button_state = 0; 
   
    } 
 
 
    switch (y_val){ 
    case 0: 
      digitalWrite(bot, HIGH); 
      break; 
    case 512: 
      //y_button_state = 0; 
      break; 
    case 1023: 
      digitalWrite(top, HIGH); 
      break; 
    //default: 
      //y_button_state = 0; 
     
    } 
  } 
   
 
 
} 
 
 
void clear(){ 
  digitalWrite(top, LOW); 
  digitalWrite(right, LOW); 
  digitalWrite(bot, LOW); 
  digitalWrite(left, LOW); 
  digitalWrite(top_r, LOW); 
  digitalWrite(top_l, LOW); 
  digitalWrite(bot_r, LOW); 
  digitalWrite(bot_l, LOW); 
}