int Turmpins[25] = {59,52,44,34,28,24,26,42,50,58,57,48,36,4,3,6,5,40,46,56,55,54,38,8,7};



void setup() 
{  
  Serial.begin(57600);
  
  // Schalter:
  pinMode(2, INPUT_PULLUP);

  // Ebenen:
  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(13, OUTPUT);

  // Türme: 
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(24, OUTPUT);
  pinMode(26, OUTPUT);
  pinMode(28, OUTPUT);
  pinMode(34, OUTPUT);
  pinMode(36, OUTPUT);
  pinMode(38, OUTPUT);
  pinMode(40, OUTPUT);
  pinMode(42, OUTPUT);
  pinMode(44, OUTPUT);
  pinMode(46, OUTPUT);
  pinMode(48, OUTPUT);
  pinMode(50, OUTPUT);
  pinMode(52, OUTPUT);
  pinMode(54, OUTPUT);
  pinMode(55, OUTPUT);
  pinMode(56, OUTPUT);
  pinMode(57, OUTPUT);
  pinMode(58, OUTPUT);
  pinMode(59, OUTPUT);

  // Ebenen vorbelegen:
  digitalWrite(9, LOW); // Ebene 3
  digitalWrite(10, LOW); // Ebene 2
  digitalWrite(11, LOW); // Ebene 1
  digitalWrite(12, LOW); // Ebene 4
  digitalWrite(13, LOW); // Ebene 5
}

void loop() 
{
  int i, j;

  // Nur Ebene 3 anschalten:
  digitalWrite(9, HIGH); 
  
  for(i = 0; i<=24; i++)
  {
    for(j = 0; j<=24; j++)
    { 
      digitalWrite(Turmpins[j], LOW);
    }

    digitalWrite(Turmpins[i], HIGH);

    if(digitalRead(2) == LOW)
    {
      Serial.println("Der Schalter wurde gedrückt!");
    }

    delay(500);
  } 
}