1  /* ************************************************************************** */
  2  /*                                                                            */
  3  /*                                                        :::      ::::::::   */
  4  /*   set.c                                              :+:      :+:    :+:   */
  5  /*                                                    +:+ +:+         +:+     */
  6  /*   By: gychoi <gychoi@student.42seoul.kr>         +#+  +:+       +#+        */
  7  /*                                                +#+#+#+#+#+   +#+           */
  8  /*   Created: 2022/12/31 23:35:06 by gychoi            #+#    #+#             */
  9  /*   Updated: 2023/01/04 15:24:18 by gychoi           ###   ########.fr       */
 10  /*                                                                            */
 11  /* ************************************************************************** */
 12  
 13  #include "fdf.h"
 14  
 15  static int	set_color(int z, t_map map)
 16  {
 17  	double	ratio;
 18  
 19  	ratio = get_ratio(map.z_min * 2, map.z_max * 2, z * -1);
 20  	if (ratio < 0.2)
 21  		return (0x0000FF00);
 22  	else if (ratio < 0.5)
 23  		return (0x0088FF00);
 24  	else if (ratio < 0.8)
 25  		return (0x00FFFF00);
 26  	else
 27  		return (0x00FFFFFF);
 28  }
 29  
 30  static double	get_z_margin(t_fdf *fdf)
 31  {
 32  	double	adj_x;
 33  	double	adj_y;
 34  	double	x_margin;
 35  	double	y_margin;
 36  
 37  	adj_x = 10;
 38  	x_margin = fdf->map.x_margin;
 39  	while (x_margin < fdf->map.width)
 40  	{
 41  		x_margin *= 10;
 42  		adj_x *= 0.1;
 43  	}
 44  	adj_y = 10;
 45  	y_margin = fdf->map.y_margin;
 46  	while (y_margin < fdf->map.height)
 47  	{
 48  		y_margin *= 10;
 49  		adj_y *= 0.1;
 50  	}
 51  	return ((adj_x + adj_y) / 2);
 52  }
 53  
 54  void	set_coord_margin(t_fdf *fdf)
 55  {
 56  	fdf->map.x_margin = (double)SCREEN_WIDTH / fdf->map.width / 2;
 57  	if (fdf->map.x_margin < 1)
 58  	{
 59  		while (fdf->map.x_margin < 1)
 60  			fdf->map.x_margin += 0.1;
 61  	}
 62  	fdf->map.y_margin = (double)SCREEN_HEIGHT / fdf->map.height / 2;
 63  	if (fdf->map.y_margin < 1)
 64  	{
 65  		while (fdf->map.y_margin < 1)
 66  			fdf->map.y_margin += 0.1;
 67  	}
 68  	fdf->map.z_margin = get_z_margin(fdf);
 69  	fdf->map.z_max *= fdf->map.z_margin;
 70  	fdf->map.z_min *= fdf->map.z_margin;
 71  }
 72  
 73  static t_point	set_point(t_coord coord, t_fdf *fdf)
 74  {
 75  	t_point	new;
 76  	double	bending;
 77  
 78  	new.x = coord.x * fdf->map.x_margin;
 79  	new.y = coord.y * fdf->map.y_margin;
 80  	new.z = coord.z * -1 * fdf->offset.z * fdf->map.z_margin;
 81  	bending = (new.x * new.x * fdf->offset.bend) \
 82  		+ (new.y * new.y * fdf->offset.bend);
 83  	new.z += bending;
 84  	new.color = set_color(new.z, fdf->map);
 85  	new.x *= fdf->offset.zoom;
 86  	new.y *= fdf->offset.zoom;
 87  	new.z *= fdf->offset.zoom;
 88  	rotate_x(&new, fdf->angle.alpha);
 89  	rotate_y(&new, fdf->angle.beta);
 90  	rotate_z(&new, fdf->angle.gamma);
 91  	new.x += SCREEN_WIDTH / 2 + fdf->offset.x;
 92  	new.y += SCREEN_HEIGHT / 2 + fdf->offset.y;
 93  	new.x = (int)new.x;
 94  	new.y = (int)new.y;
 95  	new.z = (int)new.z;
 96  	return (new);
 97  }
 98  
 99  t_point	**set_points(t_fdf *fdf)
100  {
101  	t_point	**points;
102  	t_point	*point;
103  	int		y;
104  	int		x;
105  
106  	points = fdf_malloc(sizeof(t_point *) * fdf->map.height);
107  	y = 0;
108  	while (y < fdf->map.height)
109  	{
110  		x = 0;
111  		point = fdf_malloc(sizeof(t_point) * fdf->map.width);
112  		while (x < fdf->map.width)
113  		{
114  			point[x] = set_point(fdf->coords[y][x], fdf);
115  			x++;
116  		}
117  		points[y] = point;
118  		y++;
119  	}
120  	return (points);
121  }