91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* renderer.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: adjoly <adjoly@student.42angouleme.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2024/10/28 15:48:39 by adjoly #+# #+# */
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/* Updated: 2024/11/10 16:49:53 by adjoly ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "game/utils_math.h"
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#include "mlx.h"
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#include <game/dda.h>
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#include <game/settings.h>
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#include <game/game.h>
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#include <game/render.h>
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int get_color(t_ray *ray, t_dda *dda, t_render *render, \
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int y)
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{
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int x;
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int color;
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void **texture;
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int line_stop;
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int line_size;
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line_size = (CHUNK_SIZE * WINDOW_H) / ray->distance;
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line_stop = line_size / 2 + WINDOW_H / 2;
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y = abs((line_stop - y) * TEXTURE_SIZE / line_size - 63);
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if (dda->distance.y < dda->distance.x)
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{
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x = (int)dda->hori.x % CHUNK_SIZE;
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texture = get_texture(true, render, ray);
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}
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else
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{
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x = (int)dda->vert.y % CHUNK_SIZE;
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texture = get_texture(false, render, ray);
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}
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color = mlx_get_image_pixel(render->mlx, *texture, x, y);
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return (color);
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}
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void print_line(t_render *render, t_ray *ray, int x, t_dda *dda)
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{
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int line_size;
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int line_stop;
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int line_start;
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line_size = (CHUNK_SIZE * WINDOW_H) / ray->distance;
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line_start = -line_size / 2 + WINDOW_H / 2;
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line_stop = line_size / 2 + WINDOW_H / 2;
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if (line_start < 0)
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line_start = 0;
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if (line_stop > WINDOW_H)
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line_stop = WINDOW_H;
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while (line_start < line_stop)
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{
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if (x < WINDOW_W && x >= 0)
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mlx_set_image_pixel(render->mlx, render->img, x, line_start, \
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get_color(ray, dda, render, line_start));
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line_start++;
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}
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}
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void render_frame(t_render *render)
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{
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int i;
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t_dda dda;
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t_ray ray;
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float ang;
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i = WINDOW_W;
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ray.angle = render->player->direction - ((M_PI / 180) * ((float)FOV / 2));
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fix_ang(&ray.angle);
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draw_celling(render);
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draw_floor(render);
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while (i > -1)
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{
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dda_algo(render, &dda, &ray);
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ang = cos(render->player->direction - ray.angle);
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ray.distance *= ang;
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print_line(render, &ray, i, &dda);
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ray.angle += (M_PI / 180) / ((float)WINDOW_W / FOV);
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fix_ang(&ray.angle);
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i--;
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}
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}
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