/*
 * game_logic.c
 *
 * Created: 2022-05-18 16:51:19
 *  Author: cid12bel
 */ 

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

/* values from the a/d converter */
double ADC_X_VALUE = 0;
double ADC_Y_VALUE = 0;
double TIME_TICK = 0.000064;

void timer_setup()
{
	TCCR1B = (1<<CS10) | (1<<CS11); /* scaler set to 64. 1 tick is 0.000064 s @ FCPU 1MHz. */
	TCNT1 = 0; /* reset counter */
}

void ADC_Init()			/* ADC Initialization function */
{
	DDRA = 0x00;		/* Make ADC port as input */
	ADCSRA = 0x87;		/* Enable ADC, with freq/128  */
	ADMUX = 0x40;		/* Vref: Avcc, ADC channel: 0 */
}

int ADC_Read(char channel)	/* ADC Read function */
{
	ADMUX = 0x40 | (channel & 0x07);/* set input channel to read */
	ADCSRA |= (1<<ADSC);	/* Start ADC conversion */
	while (!(ADCSRA & (1<<ADIF)));	/* Wait until end of conversion by polling ADC interrupt flag */
	ADCSRA |= (1<<ADIF);	/* Clear interrupt flag */
	_delay_ms(1);		/* Wait a little bit */
	return ADCW;		/* Return ADC word */
}

double getXValues(){
	
	double Axout;
	
	ADC_X_VALUE = ADC_Read(2);			/* Read X, Y axis ADC value */
	// Y  min-385 mid -500 max - 610
	
	/* Convert values in g unit */
	
	return Axout = (((double)((((ADC_X_VALUE-385.0)/225.0))*2))-1);
	
	
}

double getYValues(){
	
	double Ayout;
	
	/* Read X, Y axis ADC value */
	ADC_Y_VALUE = ADC_Read(1);			// Y  min-385 mid -500 max - 610
	
	/* Convert values in g unit */

	return Ayout = (((double)((((ADC_Y_VALUE-385.0)/225.0))*2))-1);	
}

double get_time_s(uint32_t time_ticks)
{
	return time_ticks * TIME_TICK;
}

uint8_t get_minutes(double t_s)
{
	uint8_t temp;
	temp = (uint8_t) t_s/60;
	return temp;
}

uint8_t get_seconds(double t_s)
{
	uint8_t temp = (uint8_t)t_s;
	return temp % 60;
}

uint8_t get_tenths(double t_s)
{
	uint16_t temp_s = (int16_t)(100 * t_s);
	return temp_s % 10;
}

uint8_t get_hundredths(double t_s)
{
	uint16_t temp_s = 100*t_s / 1;
	if (t_s*10 - temp_s >= 0.5)
	{
		return (temp_s + 1) % 10;
	}
	else
	{
		return temp_s % 10;
	}
}