push_swap/rotate.c at main · kamile-ikiz/push_swap · GitHub

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   rotate.c                                           :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: kikiz <kikiz@student.42.fr>                +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2025/03/23 19:18:15 by kikiz             #+#    #+#             */
/*   Updated: 2025/03/26 12:42:52 by kikiz            ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "push_swap.h"

static void	ft_rotate(t_stack **stack)
{
	t_stack	*tmp;
	t_stack	*last;

	if (!stack || !*stack || !(*stack)->next)
		return ;
	tmp = *stack;
	*stack = (*stack)->next;
	last = *stack;
	while (last->next)
		last = last->next;
	last->next = tmp;
	tmp->next = NULL;
}

void	ft_ra(t_stack **a, int i)
{
	ft_rotate(a);
	if (i == 1)
		ft_putstr("ra\n");
}

void	ft_rb(t_stack **b, int i)
{
	ft_rotate(b);
	if (i == 1)
		ft_putstr("rb\n");
}

void	ft_rr(t_stack **a, t_stack **b, int i)
{
	ft_rotate(a);
	ft_rotate(b);
	if (i == 1)
		ft_putstr("rr\n");
}