int green = 5;
int yellow = 6;
int blue = 7;
int white = 8;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);

  pinMode(green, OUTPUT);
  pinMode(yellow, OUTPUT);
  pinMode(blue, OUTPUT);
  pinMode(white, OUTPUT);

  digitalWrite(green, LOW);
  digitalWrite(yellow, LOW);
  digitalWrite(blue, LOW);
  digitalWrite(white, LOW);
}

void loop() {
  // put your main code here, to run repeatedly:

  if(analogRead(A0) > 1000) //  Y
  {
    Serial.println("TOP");

    digitalWrite(green, HIGH);
    digitalWrite(yellow, LOW);
    digitalWrite(blue, LOW);
    digitalWrite(white, LOW);
  }

  if(analogRead(A0) == 0) //  -Y
  {
    Serial.println("BOTTOM");

    digitalWrite(green, LOW);
    digitalWrite(yellow, HIGH);
    digitalWrite(blue, LOW);
    digitalWrite(white, LOW);
  }

  if(analogRead(A1) > 1000) //  -X
  {
    Serial.println("LEFT");

    digitalWrite(green, LOW);
    digitalWrite(yellow, LOW);
    digitalWrite(blue, HIGH);
    digitalWrite(white, LOW);
  }

  if(analogRead(A1) == 0) //  X
  {
    Serial.println("RIGHT");

    digitalWrite(green, LOW);
    digitalWrite(yellow, LOW);
    digitalWrite(blue, LOW);
    digitalWrite(white, HIGH);
  }

  if(analogRead(A2) == 0) //  Z
  {
    Serial.println("BUTTON PRESSED");

    digitalWrite(green, HIGH);
    digitalWrite(yellow, HIGH);
    digitalWrite(blue, HIGH);
    digitalWrite(white, HIGH);
  }
  else
  {
    Serial.println(" -------------------- ");

    digitalWrite(green, LOW);
    digitalWrite(yellow, LOW);
    digitalWrite(blue, LOW);
    digitalWrite(white, LOW);
  }

  delay(10);
}