ARDUINO // LCD + Palindrome string array

#include <LiquidCrystal.h>
LiquidCrystal lcd(8, 9, 4, 5, 6, 7);

int x = 7; // max x = 14
int y = 0;  // max y = 1
//int captcha = 0;

String smileys[15] = {"A", "N","A","V","O","L","I","M","I","L","O","V","A","N","A"};

byte ocitaj_taster()
{
 int tmp = analogRead(0); //stanje tastera se ocitava preko
 //analognog ulaza 0
 if (tmp > 635 && tmp < 645) //SELECT
 return 1;
 if (tmp > 405 && tmp < 415) //LEFT
 return 2;
 if (tmp > 95 && tmp < 105) //UP
 return 3;
 if (tmp > 252 && tmp < 262) //DOWN
 return 4;
 if (tmp < 5) //RIGHT
 return 5;
 return 0; //nije pritisnut nijedan od tastera
}

int rez = 0;
void setup() {

  lcd.begin(16,2);
  lcd.setCursor(x,y);
  lcd.print("<3");
}

void loop() {
  int key = ocitaj_taster();
delay(300);



  //if(captcha == 1) {
    switch(key){
      case 2:
        if( x > 0 && x <= 14) {
            x--;
          }
      break;

      case 3:
        if( y == 1) {
            y--;
          }
      break;

      case 4:
        if( y == 0) {
            y++;
          }
      break;

      case 5:
        if( x >= 0 && x < 14) {
            x++;
          }
      break;
    }
  //}
    lcd.clear();
    lcd.setCursor(x,y);
    lcd.print(smileys[x]);
}