/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   utils.c                                            :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: mcolonna <mcolonna@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/10/15 12:38:40 by mcolonna          #+#    #+#             */
/*   Updated: 2024/10/17 15:05:15 by mcolonna         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "algo.h"
#include <stdarg.h>

void	vector_from_rotation(t_point_double *vec, double angle, double norm)
{
	vec->x = sin(angle) * norm;
	vec->y = -cos(angle) * norm;
}

void	write_err(const char *str, ...)
{
	va_list	args;

	va_start(args, str);
	write(2, "Error\n", 6);
	while (str)
	{
		write(2, str, ft_strlen(str));
		str = va_arg(args, const char *);
	}
}

/* FOR BONUS
static long	get_nanos(void)
{
	struct timespec	ts;

	timespec_get(&ts, TIME_UTC);
	return ((long)ts.tv_sec * 1000000000L + ts.tv_nsec);
}

void	timedloop(void (*f)(void))
{
	static long	last_time = 0;
	const long	new_time = get_nanos();
	static bool	checked = false;

	if (new_time - last_time >= 1000000000L / FPS)
	{
		if (checked)
			last_time += 1000000000L / FPS;
		else
			last_time = new_time;
		checked = false;
		f();
	}
	else
		checked = true;
}
*/

void	timedloop(void (*f)(void))
{
	static int	ticks;

	if (ticks % 100 == 0)
		f();
	ticks++;
}