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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_draw_verline.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: rbousset <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/02/14 17:22:23 by rbousset #+# #+# */
/* Updated: 2020/02/14 17:23:42 by rbousset ### ########lyon.fr */
/* */
/* ************************************************************************** */
#include <cub3d.h>
#include <stdint.h>
static void
ft_draw_floor_tex(t_cub *cl, int32_t y, int32_t x, int32_t tex_y)
{
cl->img.ptr[x * 4 + (cl->img.sizeline * y)] =
(uint8_t)cl->tlist[6].ptr[cl->tlist[6].tex_x * 4 + 4 *
cl->tlist[6].img_h * tex_y];
cl->img.ptr[x * 4 + (cl->img.sizeline * y) + 1] =
(uint8_t)cl->tlist[6].ptr[cl->tlist[6].tex_x * 4 + 4 *
cl->tlist[6].img_h * tex_y + 1];
cl->img.ptr[x * 4 + (cl->img.sizeline * y) + 2] =
(uint8_t)cl->tlist[6].ptr[cl->tlist[6].tex_x * 4 + 4 *
cl->tlist[6].img_h * tex_y + 2];
cl->img.ptr[x * 4 + cl->wlist.x_size * y + 3] = (int8_t)0;
}
#include <stdio.h>
static void
ft_draw_floor(t_cub *cl, int32_t y, int32_t x)
{
float dist_player;
float curr_dist;
float weight;
float curr_floor_x;
float curr_floor_y;
dist_player = 0.0;
while ((uint32_t)y < cl->wlist.y_size)
{
curr_dist = cl->wlist.y_size / (2.0 * y - cl->wlist.y_size);
weight = (curr_dist - dist_player)
/ (cl->rlist.wall_dist - dist_player);
curr_floor_x = weight * cl->rlist.floor_x_wall
+ (1.0 - weight) * cl->plist.pos_x;
curr_floor_y = weight * cl->rlist.floor_y_wall
+ (1.0 - weight) * cl->plist.pos_y;
cl->tlist[6].tex_x = (int32_t)(curr_floor_x * cl->tlist[6].img_w)
% cl->tlist[6].img_w;
cl->tlist[6].tex_y = (int32_t)(curr_floor_y * cl->tlist[6].img_h)
% cl->tlist[6].img_h;
/* cl->tlist[6].tex_x = (cl->tlist[6].tex_x > 0) */
/* ? (cl->tlist[6].tex_x) : (-cl->tlist[6].tex_x); */
/* cl->tlist[6].tex_y = (cl->tlist[6].tex_y > 0) */
/* ? (cl->tlist[6].tex_y) : (-cl->tlist[6].tex_y); */
ft_draw_floor_tex(cl, y, x, cl->tlist[6].tex_y);
/* *(int*)(cl->img.ptr + */
/* (x * 4 + (y * cl->img.sizeline))) */
/* = ft_darken_floor(cl->f_rgb, weight, cl); */
y++;
}
}
static void
ft_draw_ceil(t_cub *cl, int32_t y, int32_t x)
{
int16_t i;
i = 0;
while (i <= y)
{
*(int*)(cl->img.ptr +
(x * 4 + (i * cl->img.sizeline)))
= ft_darken_ceil(cl->c_rgb, i, cl);
i++;
}
}
int8_t
ft_draw_verline(t_cub *cl, int32_t x, int32_t y, int32_t y2)
{
int32_t d;
int32_t tex_y;
(y < 0) ? (y = 0) : 0;
(y2 < 0) ? (y2 = 0) : 0;
ft_draw_ceil(cl, y, x);
(cl->rlist.line_h <= 0) ? (cl->rlist.line_h = 1) : 0;
while (y < y2)
{
d = y * 256 - cl->wlist.y_size * 128 + cl->rlist.line_h * 128;
d = (d <= 0) ? (-d) : (d);
tex_y = ((d * cl->tlist[cl->w_side].img_h) / cl->rlist.line_h) / 256;
(tex_y <= 0) ? (tex_y = 1) : 0;
ft_draw_texture(cl, x, y, tex_y);
y++;
}
ft_draw_floor(cl, y, x);
return (0);
}
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