/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   rotate.h                                           :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: maiboyer <maiboyer@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/01/29 19:00:18 by maiboyer          #+#    #+#             */
/*   Updated: 2024/01/29 19:27:19 by maiboyer         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#ifndef ROTATE_H
#define ROTATE_H

#include "me/types.h"

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

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

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

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

	flipped = FORWARD;
	if (rot.direction == FORWARD)
		flipped = REVERSE;

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

#endif /* ROTATE_H */