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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_draw_sprite.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: rbousset <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/02/24 20:22:45 by rbousset #+# #+# */
/* Updated: 2020/02/24 20:22:47 by rbousset ### ########lyon.fr */
/* */
/* ************************************************************************** */
#include <libft.h>
#include <cub3d.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
void
ft_draw_verline_sprite(t_cub *cl, int x, int y, int tex_y)
{
if (cl->tlist[4].tex_x)
cl->img.ptr[x * 4 + (cl->img.sizeline * y)] =
(char)cl->tlist[4].ptr[cl->tlist[4].tex_x * 4 + 4 *
cl->tlist[4].img_h * tex_y];
cl->img.ptr[x * 4 + (cl->img.sizeline * y) + 1] =
(char)cl->tlist[4].ptr[cl->tlist[4].tex_x * 4 + 4 *
cl->tlist[4].img_h * tex_y + 1];
cl->img.ptr[x * 4 + (cl->img.sizeline * y) + 2] =
(char)cl->tlist[4].ptr[cl->tlist[4].tex_x * 4 + 4 *
cl->tlist[4].img_h * tex_y + 2];
cl->img.ptr[x * 4 + cl->wlist.x_size * y + 3] = (char)0;
}
void
ft_draw_sprite(t_cub *cl, int x)
{
int hor_it;
int d;
int tex_y;
hor_it = cl->sp_list.s_start_y;
while (hor_it < cl->sp_list.s_end_y)
{
d = hor_it * 256 - cl->wlist.y_size * 128 + cl->rlist.line_h * 128;
d = (d <= 0) ? (-d) : (d);
tex_y = ((d * cl->tlist[4].img_h) / cl->rlist.line_h) / 256;
(tex_y < 0) ? (tex_y = 0) : 0;
ft_draw_verline_sprite(cl, x, hor_it, tex_y);
hor_it++;
}
}
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