/*
  Blink
  Turns on an LED on for one second, then off for one second, repeatedly.

  Most Arduinos have an on-board LED you can control. On the UNO, MEGA and ZERO 
  it is attached to digital pin 13, on MKR1000 on pin 6. LED_BUILTIN takes care 
  of use the correct LED pin whatever is the board used.
  If you want to know what pin the on-board LED is connected to on your Arduino model, check
  the Technical Specs of your board  at https://www.arduino.cc/en/Main/Products
  
  This example code is in the public domain.

  modified 8 May 2014
  by Scott Fitzgerald
  
  modified 2 Sep 2016
  by Arturo Guadalupi
*/
int pin1 = 10;
int pin2 = 11;
int pin3 = 12;

int przycisk1 = 7;
int przycisk2 = 6;
int przycisk3 = 5;

// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(pin1, OUTPUT);
  pinMode(pin2, OUTPUT);
  pinMode(pin3, OUTPUT);

  pinMode(przycisk1, INPUT_PULLUP);
  pinMode(przycisk2, INPUT_PULLUP);
  pinMode(przycisk3, INPUT_PULLUP);
}

// the loop function runs over and over again forever
void loop() {

  if(digitalRead(przycisk1) == LOW)
  {
    while(digitalRead(przycisk2) == HIGH)
    {  
    digitalWrite(pin1, HIGH);
    delay(500);
    digitalWrite(pin1, LOW);
    delay(500);
    }
  
  }
  
  if(digitalRead(przycisk2) == LOW)
  {
    while(digitalRead(przycisk1) == HIGH && digitalRead(przycisk3) == HIGH)
    {
    digitalWrite(pin1, HIGH);
    delay(500);
    digitalWrite(pin1, LOW);
    delay(500);

    digitalWrite(pin2, HIGH);
    delay(500);
    digitalWrite(pin2, LOW);
    delay(500);

     if(digitalRead(przycisk2) == LOW)
      {
        digitalWrite(pin1, HIGH);
        digitalWrite(pin2, HIGH);
        digitalWrite(pin3, HIGH);
        
        delay(500);

        digitalWrite(pin1, LOW);
        digitalWrite(pin2, LOW);
        digitalWrite(pin3, LOW);
        
        break;
      }
    
    }  
  }


  if(digitalRead(przycisk3) == LOW)
  {
    while(digitalRead(przycisk1) == HIGH)
    {
    digitalWrite(pin1, HIGH);
    delay(500);
    digitalWrite(pin1, LOW);
    delay(500);

    digitalWrite(pin2, HIGH);
    delay(500);
    digitalWrite(pin2, LOW);
    delay(500);

    digitalWrite(pin3, HIGH);
    delay(500);
    digitalWrite(pin3, LOW);
    delay(500);

       if(digitalRead(przycisk2) == LOW || digitalRead(przycisk3) == LOW)
      {
        digitalWrite(pin1, HIGH);
        digitalWrite(pin2, HIGH);
        digitalWrite(pin3, HIGH);
        
        delay(500);

        digitalWrite(pin1, LOW);
        digitalWrite(pin2, LOW);
        digitalWrite(pin3, LOW);
        
        break;
      }
    }
    
  }


           delay(500);
   
}