// Prog by YeNkO

#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,20,4);  // set the LCD address to 0x27 for a 16 chars and 2 line display

unsigned long startTime = 0; // Variable pour stocker le temps de début de la séquence
unsigned long Timeleft = 0; // Variable pour stocker le temps restant
const unsigned long sequenceDuration = 20000; // Durée de la séquence en millisecondes (20 secondes)

void setup()
{
  lcd.init();                     // initialize the lcd 
  // Print a message to the LCD.
  lcd.backlight();
  lcd.setCursor(0,0);
  lcd.print("Temps");
  lcd.setCursor(0,1);
  lcd.print("Points");
}


void loop()
{
  startTime = millis();
  Timeleft = sequenceDuration - startTime;
  if (startTime < sequenceDuration) {
    if (Timeleft > 10000) {
    // set the cursor to column 0, line 1
    // (note: line 1 is the second row, since counting begins with 0):
    lcd.setCursor(13,0);
    // print the number of seconds since reset:
    lcd.print(Timeleft / 1000);
    lcd.setCursor(15,0);
    lcd.print("s"); }
  else if (Timeleft < 10000) {
    lcd.setCursor(13,0);
    lcd.print(" ");
    lcd.setCursor(14,0);
    lcd.print(Timeleft / 1000);
    lcd.setCursor(15,0);
    lcd.print("s");
  }
  }
  else {
    lcd.setCursor(0, 0);
    lcd.print("Partie terminer");
  }
}