#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

bool first = true;
char text1[17] = "Salut,";
char text2[17] = "Alexandru!";
char text3[17] = "";
char text4[17] = "";

void setup()
{
	lcd.begin (16,2);
}

void loop()
{
  if(first) {
    convert(text1, 0);
    convert(text2, 1);
    lcd.setCursor(0, 0);
  	lcd.write(text1);
  	lcd.setCursor(0, 1);
  	lcd.write(text2);
    first = false;
  	delay(100);
  }

  for(int i = 0; i < 16; i++) {
    if(!i) {
      text3[i] = text1[15];
      continue;
    }
    text3[i] = text1[i-1];
  }

  for(int i = 15; i >= 0; i--) {
    if(i == 15) {
  	  text4[i] = text2[0];
      continue;
    }
    text4[i] = text2[i+1];
  }

  strcpy(text1, text3);
  strcpy(text2, text4);
  lcd.setCursor(0, 0);
  lcd.write(text1);
  lcd.setCursor(0, 1);
  lcd.write(text2);
  delay(100);
}

void convert(char text[], int position) {
  char fill[17] = "";
  int length = strlen(text);

  for(int i = 0; i < 16 - length; i++) {
    strcat(fill," ");
  }

  if(position) {
    strcat(fill, text);
    strcpy(text, fill);
    return;
  }
  strcat(text, fill);
}