#include "display.h"
#include "buttons.h"

#include "SpedenSpelit.h"

volatile int buttonNumber = -1;

volatile bool newTimerInterrupt = false;

byte currentLed = 0;

byte score = 0;


void setup(void)
{
   Serial.begin(9600);
  //initializeLeds();
  initializeDisplay();
  initButtonsAndButtonInterrupts();
  initializeGame();

  randomSeed(analogRead(A0));
}

void loop(void)
{

  if(buttonNumber >= 0)
  {

    byte pressedButton = buttonNumber;
    buttonNumber = -1;

    if(pressedButton == 4)
    {
      startTheGame();
    }

    else if(pressedButton < 4)
    {
      checkGame(pressedButton);
    }
  }

  if(newTimerInterrupt == true)
  {
    newTimerInterrupt = false;
   // clearAllLeds();
    currentLed = random(0, 4);
    //setLed(currentLed);
  }
}

void initializeTimer(void)
{
  cli();

  TCCR1A = 0;
  TCCR1B = 0;

  TCCR1B |= (1 << WGM12);

  OCR1A = 15624;

  TCNT1 = 0;
  TIMSK1 |= (1 << OCIE1A);

  sei();
}
ISR(TIMER1_COMPA_vect)
{

  newTimerInterrupt = true;
}

void checkGame(byte nbrOfButtonPush)
{

  if(nbrOfButtonPush == currentLed)
  {

    score++;

    showResult(score);

   // clearAllLeds();

    if(score % 10 == 0)
    {

      OCR1A = (OCR1A * 9UL) / 10UL;
    }
  }
  else
  {

    //clearAllLeds();

    showResult(score);

    TIMSK1 &= ~(1 << OCIE1A);

    TCCR1B &= ~((1 << CS12) |
                (1 << CS11) |
                (1 << CS10));

    newTimerInterrupt = false;
  }
}

void initializeGame(void)
{
  currentLed = 0;

  //clearAllLeds();

  showResult(score);

  newTimerInterrupt = false;
}


void startTheGame(void)
{
  initializeGame();

  OCR1A = 15624;

  TCNT1 = 0;

  TIMSK1 |= (1 << OCIE1A);

  TCCR1B |= (1 << CS12);
  TCCR1B |= (1 << CS10);

  sei();
}