// C++ code
//
#include <LiquidCrystal.h>

int valbutton;
int valbutton1;
int valbutton2;
int valbutton3;
int valbutton4;
int valbutton5;
int indiceLong = 1;
int LA = 0; // compteur de langueur
int L1 = 0; // longueur fixe n1
int L2 = 0; // longueur fixe n2
int L3 = 0; // longueur fixe n3
int L4 = 0; // longueur fixe n4
int L5 = 0; // longueur fixe n5 
int L6 = 0; // longueur fixe n6

const int button = 43 ; // input 
const int button1 = 53 ; // input
const int button2 = 51 ; // input
const int button3 = 49 ; // input
const int button4 = 47 ; // input
const int button5 = 45 ; // input
const int LedPin = 13 ; //output
LiquidCrystal lcd(12, 11, 10, 9, 8, 7); // output ecran LCD 2x12


void setup()
{
  pinMode(button, INPUT);
  pinMode(button1, INPUT);
  pinMode(button2, INPUT);
  pinMode(button3, INPUT);
  pinMode(button4, INPUT);
  pinMode(button5, INPUT);
  pinMode(LedPin, OUTPUT);
  lcd.begin(16, 2);
  
   lcd.print("L    =     N=");
}

void loop(){

  valbutton = digitalRead (button);

  valbutton1 = digitalRead (button1);
 
  valbutton2 = digitalRead (button2);

  valbutton3 = digitalRead (button3);

  valbutton4 = digitalRead (button4);

  valbutton5 = digitalRead (button5);


  if (valbutton == HIGH) 
  {
  digitalWrite(LedPin,LOW);  
  

    lcd.setCursor(1,0);
    lcd.print(indiceLong);
    //delay(100); // Wait for 100 millisecond(s)
         
    
    if (valbutton1 == LOW && indiceLong < 7)
    
    {
     //lcd.setCursor(1,0);
     //lcd.print("  ");
     lcd.setCursor(1,0);
     lcd.print(indiceLong);
     //lcd.setBacklight(1);
     delay(100); // Wait for 100 millisecond(s)
     indiceLong++;
     delay(100); 
     //lcd.setCursor(1,0);
     //lcd.print("  ");
     //delay(100); // Wait for 100 millisecond(s)  
             
          
                
      
    }
    
 
     if (indiceLong > 6)
      {
       
      indiceLong = 1;  
      lcd.setCursor(1,0);
      lcd.print("  ");
      delay(100); // Wait for 100 millisecond(s)      
      }
    
    else
    {
    

              lcd.setCursor(7,0);
              lcd.print(LA);
              
              //lcd.setBacklight(1);
              delay(100); // Wait for 100 millisecond(s)


               if (valbutton3 == LOW)
             { 

             LA++;
           
              lcd.setCursor(7,0);
              lcd.print("    ");
                  //charger les valeurs de L
                  if (indiceLong == 1){L1 = LA;}
                  if (indiceLong == 2){L2 = LA;}
                  if (indiceLong == 3){L3 = LA;}
                  if (indiceLong == 4){L4 = LA;}
                  if (indiceLong == 5){L5 = LA;}
                  if (indiceLong == 6){L6 = LA;}            
                  else {}       
             delay(100);}
          
           else if (valbutton2 == LOW)
             {

              LA--;
             
              lcd.setCursor(7,0);
              lcd.print("    ");
                  //charger les valeurs de L
                  if (indiceLong == 1){L1 = LA;}
                  if (indiceLong == 2){L2 = LA;}
                  if (indiceLong == 3){L3 = LA;}
                  if (indiceLong == 4){L4 = LA;}
                  if (indiceLong == 5){L5 = LA;}
                  if (indiceLong == 6){L6 = LA;}             
                  else {}
             delay(100);}
      
          else {

              lcd.setCursor(7,1);
              lcd.print(L1);
              //lcd.setBacklight(1);            
              lcd.setCursor(1,1);
              lcd.print(L5);
              //lcd.setBacklight(1);


              delay(50); // Wait for 100 millisecond(s)






          }     
    
    
    
    }
      
      
    
}
  else 
  
  {
   
          digitalWrite(LedPin,HIGH); 
          lcd.setCursor(0,0);
          
 
              lcd.setCursor(0,0);
              lcd.print("          ");
              lcd.setCursor(0,1);
              lcd.print("         ");
              
              //lcd.setBacklight(1);
             
              lcd.setCursor(5,1);
              lcd.print(L5);
             // lcd.setBacklight(1);


  }
}