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

bool debButton(const unsigned char pin[4], int x)
{

    _delay_ms(20);
    if(bit_is_clear(PINB, x))
    {
    //  if(pin == "PINB"))
    //      { PORTB &= ~(1 << PINB3); }
        while ((bit_is_clear(pin, x))) {}
        return true;
    }
    else
    {
        return false;
    }
}

int main(void)
{

DDRB |= 1 << PINB0;
DDRB &= ~(1 << PINB2);
DDRB |= 1 << PINB3;
DDRB |= 1 << PINB1;

PORTB |= 1 << PINB3;

    while(1)
    {
        if(bit_is_clear(PINB,2))
        {

            PORTB |= 1 << PINB0;
            if( debButton("PINB",2))
            {
                PORTB ^= 1 << PINB1;
            }
            else
            {

            }
        }
        else
        {
            PORTB &= ~(1 << PINB0);
        }
    }
}