/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   rotate.h                                           :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: maiboyer <maiboyer@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/01/29 19:00:18 by maiboyer          #+#    #+#             */
/*   Updated: 2024/02/08 13:33:09 by maiboyer         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#ifndef ROTATE_H
# define ROTATE_H

# include "me/types.h"

enum							e_rotation_direction
{
	FORWARD,
	REVERSE,
};
typedef struct s_rotation
{
	t_isize						value;
	t_isize						ring_size;
	enum e_rotation_direction	direction;
}								t_rotation;

static inline t_rotation	forward(t_isize by, t_isize ring_size)
{
	return ((t_rotation){.value = by, .ring_size = ring_size,
		.direction = FORWARD});
}

static inline t_rotation	reverse(t_isize by, t_isize ring_size)
{
	return ((t_rotation){.value = by, .ring_size = ring_size,
		.direction = REVERSE});
}

static inline t_rotation	flip(t_rotation rot)
{
	enum e_rotation_direction	flipped;

	if (rot.direction == FORWARD)
		flipped = REVERSE;
	else if (rot.direction == REVERSE)
		flipped = FORWARD;
	else
		return (rot);
	return ((t_rotation){.value = rot.ring_size - rot.value,
		.ring_size = rot.ring_size, .direction = flipped});
}

#endif /* ROTATE_H */