#define A 9
#define B 8
#define C 7
#define D 6
#define E 5
#define F 4
#define G 3
#define Punkt 2

#define Taster A2

int t = 0;
int zufallszahl = 0;
int a = 0;

void setup() {
  pinMode(A, OUTPUT);
  pinMode(B, OUTPUT);
  pinMode(C, OUTPUT);
  pinMode(D, OUTPUT);
  pinMode(E, OUTPUT);
  pinMode(F, OUTPUT);
  pinMode(G, OUTPUT);
  pinMode(Punkt, OUTPUT);

  pinMode(Taster, INPUT);

  Serial.begin(9600);
  randomSeed(analogRead(0));
}

void loop() {
  if (digitalRead(Taster) == HIGH) {
    zufall();
  }
}

void zufall() {
  int zufallszahl = random(1, 7);
  Serial.println(zufallszahl);
  Lauflicht();
  t = zufallszahl;
  Schluss();
  Zahlen();
  delay(1000);
  while (digitalRead(Taster) == LOW) {
    delay(10);
  }
  Aus();
  delay(500);
}

void Lauflicht() {
  for (int a = 50; a <= 250; a = a + 25) {
    for (int i = 1; i <= 6; i++) {
      t = i;
      Zahlen();
      delay(a);
      Aus();
    }
  }
}

void Schluss() {
  if (t > 1) {
    Eins();
    delay(275);
    Aus();
    if (t > 2) {
      Zwei();
      delay(290);
      Aus();
      if (t > 3) {
        Drei();
        delay(315);
        Aus();
        if (t > 4) {
          Vier();
          delay(360);
          Aus();
          if (t > 5) {
            Funf();
            delay(420);
            Aus();
          }
        }
      }
    }
  }
}

void Zahlen() {
  if (t == 0) {
    Null();
  }
  if (t == 1) {
    Eins();
  }
  if (t == 2) {
    Zwei();
  }
  if (t == 3) {
    Drei();
  }
  if (t == 4) {
    Vier();
  }
  if (t == 5) {
    Funf();
  }
  if (t == 6) {
    Sechs();
  }
  if (t == 7) {
    Sieben();
  }
  if (t == 8) {
    Acht();
  }
  if (t == 9) {
    Neun();
  }
}

void Null() {
  digitalWrite(A, HIGH);
  digitalWrite(B, HIGH);
  digitalWrite(C, HIGH);
  digitalWrite(D, HIGH);
  digitalWrite(E, HIGH);
  digitalWrite(F, HIGH);
}
void Eins() {
  digitalWrite(B, HIGH);
  digitalWrite(C, HIGH);
}
void Zwei() {
  digitalWrite(A, HIGH);
  digitalWrite(B, HIGH);
  digitalWrite(D, HIGH);
  digitalWrite(E, HIGH);
  digitalWrite(G, HIGH);
}
void Drei() {
  digitalWrite(A, HIGH);
  digitalWrite(B, HIGH);
  digitalWrite(C, HIGH);
  digitalWrite(D, HIGH);
  digitalWrite(G, HIGH);
}
void Vier() {
  digitalWrite(B, HIGH);
  digitalWrite(C, HIGH);
  digitalWrite(F, HIGH);
  digitalWrite(G, HIGH);
}
void Funf() {
  digitalWrite(A, HIGH);
  digitalWrite(C, HIGH);
  digitalWrite(D, HIGH);
  digitalWrite(F, HIGH);
  digitalWrite(G, HIGH);
}
void Sechs() {
  digitalWrite(A, HIGH);
  digitalWrite(C, HIGH);
  digitalWrite(D, HIGH);
  digitalWrite(E, HIGH);
  digitalWrite(F, HIGH);
  digitalWrite(G, HIGH);
  digitalWrite(Punkt, HIGH);
}
void Sieben() {
  digitalWrite(A, HIGH);
  digitalWrite(B, HIGH);
  digitalWrite(C, HIGH);
}
void Acht() {
  digitalWrite(A, HIGH);
  digitalWrite(B, HIGH);
  digitalWrite(C, HIGH);
  digitalWrite(D, HIGH);
  digitalWrite(E, HIGH);
  digitalWrite(F, HIGH);
  digitalWrite(G, HIGH);
}
void Neun() {
  digitalWrite(A, HIGH);
  digitalWrite(B, HIGH);
  digitalWrite(C, HIGH);
  digitalWrite(D, HIGH);
  digitalWrite(F, HIGH);
  digitalWrite(G, HIGH);
  digitalWrite(Punkt, HIGH);
}
void Aus() {
  digitalWrite(A, LOW);
  digitalWrite(B, LOW);
  digitalWrite(C, LOW);
  digitalWrite(D, LOW);
  digitalWrite(E, LOW);
  digitalWrite(F, LOW);
  digitalWrite(G, LOW);
  digitalWrite(Punkt, LOW);
}