#include <LiquidCrystal.h>
bool test = true;
LiquidCrystal lcd(12, 11, 10, 9, 8, 7);
int randnum = 0;
int pozicia = 0;

void setup() {
  // put your setup code here, to run once:
lcd.begin(16, 2);
DDRD |= 1<<2;
DDRD |= 1<<3;
DDRB &= ~(1<<5);
PORTB |= (1<<5);
randomSeed(analogRead(A0));
}

//nove cislo - aktualny krok
void loop() {
  // put your main code here, to run repeatedly:


if ( (PINB&(1<<5)) == 0 && test == true)
{
   PORTD &= ~(1<<2);
   randnum = random(0, 59);
   PORTB |= 1<<0;
  lcd.clear();
lcd.setCursor(0,0);
lcd.print(randnum);
  test = false;
}

while(rnd > pozicia)
{
  krok('r');
  pozicia++;
}

while(rnd < pozicia)
{
  krok('l');
  pozicia--;
}

else if ( (PINB&(1<<5)) != 0 && test != true)
{
  test = true;

}

}

void krok(char smer)
{
  if(smer == 'r')
  PORTB |= 1<<0;
  else 
  PORTB &= ~(1<<0);

  PORTB |= 1<<1;
  delay(1);

  PORTB &= ~(1<<1);
  delay(1);
}