Last development push

2025-12-09 19:57:51 +01:00
parent a7f7d77bf9
commit 5e08fc76ef
25 changed files with 764 additions and 195 deletions
--- a/src/execution/render.c
+++ b/src/execution/render.c
@@ -0,0 +1,106 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   render.c                                           :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: aortigos <aortigos@student.42malaga.com    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2025/12/09 18:42:30 by aortigos          #+#    #+#             */
+/*   Updated: 2025/12/09 19:55:21 by aortigos         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "../../includes/cub3d.h"
+
+void	draw_floor_ceiling(t_mlx *mlx, int ray, int t_pix, int b_pix)
+{
+	int	i;
+	int	c;
+
+	i = b_pix;
+	c = get_rgba(ft_atoi(mlx->dt->ff[0]), ft_atoi(mlx->dt->ff[1]),
+			ft_atoi(mlx->dt->ff[2]), 255);
+	while (i < S_H)
+		my_mlx_pixel_put(mlx, ray, i++, c);
+	c = get_rgba(ft_atoi(mlx->dt->cc[0]), ft_atoi(mlx->dt->cc[1]),
+			ft_atoi(mlx->dt->cc[2]), 255);
+	i = 0;
+	while (i < t_pix)
+		my_mlx_pixel_put(mlx, ray, i++, c);
+}
+
+mlx_texture_t	*get_texture(t_mlx *mlx, int flag)
+{
+	mlx->ray->ray_ngl = nor_angle(mlx->ray->ray_ngl);
+	if (flag == 0)
+	{
+		if (mlx->ray->ray_ngl > M_PI / 2 && mlx->ray->ray_ngl < 3 * (M_PI / 2))
+			return (mlx->tex->ea);
+		else
+			return (mlx->tex->we);
+	}
+	else
+	{
+		if (mlx->ray->ray_ngl > 0 && mlx->ray->ray_ngl < M_PI)
+			return (mlx->tex->so);
+		else
+			return (mlx->tex->no);
+	}
+}
+
+double	get_x_o(mlx_texture_t *texture, t_mlx *mlx)
+{
+	double	x_o;
+
+	if (mlx->ray->flag == 1)
+		x_o = (int)fmodf((mlx->ray->horiz_x * (texture->width / WALL_SIZE)),
+				texture->width);
+	else
+		x_o = (int)fmodf((mlx->ray->vert_y * (texture->width / WALL_SIZE)),
+				texture->width);
+	return (x_o);
+}
+
+void	draw_wall(t_mlx *mlx, int t_pix, int b_pix, double wall_h)
+{
+	double			x_o;
+	double			y_o;
+	mlx_texture_t	*texture;
+	uint32_t		*arr;
+	double			factor;
+
+	texture = get_texture(mlx, mlx->ray->flag);
+	arr = (uint32_t *)texture->pixels;
+	factor = (double)texture->height / wall_h;
+	x_o = get_x_o(texture, mlx);
+	y_o = (t_pix - (S_H / 2) + (wall_h / 2)) * factor;
+	if (y_o < 0)
+		y_o = 0;
+	while (t_pix < b_pix)
+	{
+		my_mlx_pixel_put(mlx, mlx->ray->index, t_pix, reverse_bytes(arr[(int)y_o
+				* texture->width + (int)x_o]));
+		y_o += factor;
+		t_pix++;
+	}
+}
+
+void	render_wall(t_mlx *mlx, int ray)
+{
+	double	wall_h;
+	double	b_pix;
+	double	t_pix;
+
+	mlx->ray->distance *= cos(nor_angle(mlx->ray->ray_ngl - mlx->ply->angle));
+	wall_h = (WALL_SIZE / mlx->ray->distance) * ((S_W / 2)
+			/ tan(mlx->ply->fov_rd / 2));
+	b_pix = (S_H / 2) + (wall_h / 2);
+	t_pix = (S_H / 2) - (wall_h / 2);
+	if (b_pix > S_H)
+		b_pix = S_H;
+	if (t_pix < 0)
+		t_pix = 0;
+	mlx->ray->index = ray;
+	draw_wall(mlx, t_pix, b_pix, wall_h);
+	draw_floor_ceiling(mlx, ray, t_pix, b_pix);
+}