/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_basic_keys.c                                    :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: fmoenne- <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2020/02/14 17:43:55 by fmoenne-          #+#    #+#             */
/*   Updated: 2020/02/14 17:43:56 by fmoenne-         ###   ########lyon.fr   */
/*                                                                            */
/* ************************************************************************** */

#include <libft.h>
#include <cub3d.h>
#include <stdint.h>

/*
** 1 : no
** 0 : so
** 3 : ea
** 4 : we
** 4 : sprite
*/

void	ft_draw_texture(t_cub *cl, int x, int y, int tex_y)
{
	float		dist;
	float		calc;

	if ((dist = cl->rlist.wall_dist) <= 0)
		dist = 0.0001;
	calc = (dist * 0.1 * cl->mlist.darklvl);
	calc = (calc >= 255) ? (255) : (calc);
	calc = (calc < 1) ? (1) : (calc);
	cl->img.ptr[x * 4 + (cl->img.sizeline * y)] =
		(uint8_t)cl->tlist[cl->w_side].ptr[cl->tlist[cl->w_side].tex_x * 4 + 4 *
		cl->tlist[cl->w_side].img_h * tex_y] / calc;
	cl->img.ptr[x * 4 + (cl->img.sizeline * y) + 1] =
		(uint8_t)cl->tlist[cl->w_side].ptr[cl->tlist[cl->w_side].tex_x * 4 + 4 *
		cl->tlist[cl->w_side].img_h * tex_y + 1] / calc;
	cl->img.ptr[x * 4 + (cl->img.sizeline * y) + 2] =
		(uint8_t)cl->tlist[cl->w_side].ptr[cl->tlist[cl->w_side].tex_x * 4 + 4 *
		cl->tlist[cl->w_side].img_h * tex_y + 2] / calc;
	cl->img.ptr[x * 4 + cl->wlist.x_size * y + 3] = (char)0;
}

void	ft_choose_tex(t_cub *clist)
{
	if (clist->rlist.sqy == clist->mlist.nlx
		&& clist->rlist.sqx == clist->mlist.nly)
	{
		clist->w_side = 5;
	}
	else
	{
		if (clist->rlist.side == 0 && clist->rlist.x_ray_dir < 0)
			clist->w_side = 1;
		else if (clist->rlist.side == 0 && clist->rlist.x_ray_dir > 0)
			clist->w_side = 0;
		else if (clist->rlist.side == 1 && clist->rlist.y_ray_dir > 0)
			clist->w_side = 3;
		else
			clist->w_side = 2;
	}
}