#define F_CPU 16000000UL

#include <avr/io.h>
#include <avr/interrupt.h>
#include <util/delay.h>

#include "gpio.h"
#include "lcd.h"
#include "adc.h"
#include "timer.h"
#include "ultrasonic.h"
#include "system.h"
#include "distance_game.h"
#include "light_game.h"
#include "light_sensing.h"

ISR(TIMER0_COMPA_vect) {

}

ISR(TIMER1_COMPA_vect) {
  tick1ms++;
}

int main(void) {
  initAdc();
  initLcd();
  initTimer0FastPWM(0x00);
  initTimer1CTC_ms(1);
  initUltrasonic();

  sei();

  initSystem();

  while (1) {
    checkButtons();
    handleButtonTransitions();

    switch (currentState) {
      case STATE_DISTANCE:
        handleDistanceState();
        break;
      case STATE_LIGHT_GAME:
        handleLightGameState();
        break;
      case STATE_LIGHT_SENSING:
        handleLightSensingState();
        break;
    }
  }

  return 0;
}