#include <TimerOne.h>
#include <MultiFuncShield.h>

#define button A1
#define led1 13
#define button2 A2
#define button3 A3


bool val;
bool val2;
bool val3;

byte ended = false;

void setup() {
  Timer1.initialize();
  MFS.initialize(&Timer1);

  pinMode(button,OUTPUT);
  digitalWrite(button,HIGH);

  pinMode(button2,OUTPUT);
  digitalWrite(button2,HIGH);

  pinMode(led1, OUTPUT);

  Serial.begin(9600);
}

int users_in = 0;
bool state1 = true;
int cislo = 2;
bool ano = true;

void loop() {
  

  if(users_in == 0){
    ended = false;
    Serial.print("Nastav stopky: ");
    while(!Serial.available());
    users_in = Serial.parseInt();
    ano = false;
    if(users_in != 0)
      Serial.println(users_in);
  }

  if(users_in != 0){
    MFS.write(int(users_in)); 
    users_in--;
    delay(1000);
  }
  else if(!ended){
    ended = true;
    ano = true;
    MFS.write(0);
    delay(1000);
    MFS.write("End");
  }

  val = digitalRead(button);
  if(val == LOW){
    users_in = 0;
    ended = false;
  }
  val2 = digitalRead(button2);
  if(val2 == LOW && state1 == true && cislo % 2 == 0){
    digitalWrite(led1,LOW);
    state1 = false;
    cislo++;
  }

  if(val2 == LOW && state1 == true && cislo % 2 == 1){
    digitalWrite(led1,HIGH);
    state1 = false;
    cislo--;
  }

  if(val2 == HIGH && state1 == false)
    state1 = true;

  val3 = digitalRead(button3);
  if(val3 == LOW){
    MFS.write("Ahoj");
  }

}