#include <LiquidCrystal.h>
LiquidCrystal lcd(12, 11, 10, 9, 8, 7);
int menuMerker = 0;
bool buttonGedrueckt = false;
bool lcdAktualisiert = false;


void checkButton(int bhoch, int brunter, int benter, String zeile_1, String zeile_2)
{
  if (buttonGedrueckt == false){
    if(digitalRead(2)==false){
      menuMerker = bhoch;
      buttonGedrueckt = true;
    }
    else if (digitalRead(3)==false){
      menuMerker = brunter;
      buttonGedrueckt = true;
    }
    else if(digitalRead(4)==false){
      menuMerker = benter;
      buttonGedrueckt = true;
    }
    
  }
  else{
    if (buttonGedrueckt && (!lcdAktualisiert)){
    lcd.clear();
    lcd.print(zeile_1);
    lcd.setCursor(0,1);
    lcd.print(zeile_2);
    lcdAktualisiert = true;
    delay(150);
    }
    if(digitalRead(2) && digitalRead(3) && digitalRead(4))
    {
      buttonGedrueckt = false;
      lcdAktualisiert = false;
    }
  }

}

void Menu_0()
{

}

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  lcd.begin(16,2);
  buttonGedrueckt = true;
  checkButton(0,0,0,"Noels","Supermaschine");
  delay(1000);
  const int hoch = 2;
  const int runter = 3;
  const int enter = 4;
  pinMode(hoch, INPUT_PULLUP);
  pinMode(runter, INPUT_PULLUP);
  pinMode(enter, INPUT_PULLUP);
  pinMode(13, OUTPUT);
  
  
}

void loop() {
  // put your main code here, to run repeatedly:
  switch(menuMerker)
  {
    case 0:
      checkButton(3,1,10,"Start Menu","Bertiebsart");
      break;
    case 1:
      checkButton(0,2,20,"Start Menu","Einstellungen");
      break;
    case 2:
      checkButton(1,3,30,"Start Menu","Irgendwas 1");
      break;
    case 3:
      checkButton(1,0,40,"Start Menu","Irgenwas 2");
      break;
    // Betriebsart
    case 10:
      checkButton(13,11,10,"Bertiebsart","LED");
      break;
    case 11:
      checkButton(10,12,11,"Bertiebsart","Ausschalten");
      if(!digitalRead(4)){
      digitalWrite(13, LOW);
      }
      break;
    case 12:
      checkButton(11,13,12,"Bertiebsart","Einschalten");
      if(!digitalRead(4)){
      digitalWrite(13, HIGH);
      }
      break;
    case 13:
      checkButton(12,10,0,"Bertiebsart","zurueck");
      break;

    case 20:
      checkButton(20,20,1,"Einstellungen","zurueck");
      break;
    case 30:
      checkButton(30,30,1,"Irgendwas 1","zurueck");
      break;
    case 40:
      checkButton(40,40,1,"Irgendwas 1","zurueck");
      break;

  }

  
}