1  /* ************************************************************************** */
 2  /*                                                                            */
 3  /*                                                        :::      ::::::::   */
 4  /*   img_put_line.c                                     :+:      :+:    :+:   */
 5  /*                                                    +:+ +:+         +:+     */
 6  /*   By: ll-hotel <ll-hotel@student.42.fr>          +#+  +:+       +#+        */
 7  /*                                                +#+#+#+#+#+   +#+           */
 8  /*   Created: 2024/09/08 20:33:50 by ll-hotel          #+#    #+#             */
 9  /*   Updated: 2024/09/08 20:33:52 by ll-hotel         ###   ########.fr       */
10  /*                                                                            */
11  /* ************************************************************************** */
12  
13  #include "cub3D.h"
14  #include "ft_basics.h"
15  #include "img_put_pixel.h"
16  #include <math.h>
17  
18  void	img_put_line(t_img *img, t_point p1, t_point p2, const int colour)
19  {
20  	const t_vec2f	d = (t_vec2f){p2.x - p1.x, p2.y - p1.y};
21  	t_vec2f			slope;
22  	int				steps;
23  	float			x;
24  	float			y;
25  
26  	x = p1.x;
27  	y = p1.y;
28  	steps = roundf(ft_maxf(ft_absf(d.x), ft_absf(d.y)));
29  	slope = (t_vec2f){d.x / steps, d.y / steps};
30  	img_put_pixel(img, y, x, colour);
31  	while (steps-- > 0)
32  	{
33  		x += slope.x;
34  		y += slope.y;
35  		img_put_pixel(img, roundf(y), roundf(x), colour);
36  	}
37  }