/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   move_utils.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: mcolonna <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/11/13 21:42:57 by mcolonna          #+#    #+#             */
/*   Updated: 2024/11/13 21:46:49 by mcolonna         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "move_utils.h"

#include "utils.h"
#include "map.h"
#include "global.h"
#include "const.h"

static void	move_in_direction(t_point_double *pos, t_direction dir,
				double value)
{
	if (dir == NORTH)
		pos->y -= value;
	else if (dir == SOUTH)
		pos->y += value;
	else if (dir == EAST)
		pos->x -= value;
	else if (dir == WEST)
		pos->x += value;
}

static void	push_from_wall(int cx, int cy)
{
	const t_point_double	p = g_map.player.pos;
	double					distance_with_side[4];
	t_direction				d;
	t_direction				d_min;
	const t_point_double	c_d = {cx, cy};

	if (map_get_case(&g_map, cx, cy)->wall == EMPTY)
		return ;
	if (p.x > c_d.x - HITBOX && p.x < c_d.x + 1 + HITBOX
		&& p.y > c_d.y - HITBOX && p.y < c_d.y + 1 + HITBOX)
	{
		distance_with_side[NORTH] = p.y - (c_d.y - HITBOX);
		distance_with_side[SOUTH] = (c_d.y + 1 + HITBOX) - p.y;
		distance_with_side[EAST] = p.x - (c_d.x - HITBOX);
		distance_with_side[WEST] = (c_d.x + 1 + HITBOX) - p.x;
		d_min = 0;
		d = 0;
		while (++d < 4)
			if (distance_with_side[d] < distance_with_side[d_min])
				d_min = d;
		move_in_direction(&g_map.player.pos, d_min, distance_with_side[d_min]);
	}
}

void	push_from_walls(void)
{
	t_point_int	p;

	p.x = (int)g_map.player.pos.x;
	p.y = (int)g_map.player.pos.y;
	push_from_wall(p.x - 1, p.y);
	push_from_wall(p.x + 1, p.y);
	push_from_wall(p.x, p.y - 1);
	push_from_wall(p.x, p.y + 1);
	push_from_wall(p.x - 1, p.y - 1);
	push_from_wall(p.x - 1, p.y + 1);
	push_from_wall(p.x + 1, p.y - 1);
	push_from_wall(p.x + 1, p.y + 1);
}