From: Lukas Jiriste <ljiriste@student.42prague.com>
Date: Tue, 5 Dec 2023 19:20:21 +0000 (+0100)
Subject: Add general function for constructing Julia sets
X-Git-Url: https://git.ljiriste.work/?a=commitdiff_plain;h=1a444f533b3e92ae3ae181d238c80141e7335f01;p=42%2Ffract-ol.git

Add general function for constructing Julia sets

This function has different prototype that mandelbrot function so some
work should be done about unifying it for easier swapping of the two.

This function may be used to construct specialized functions.
---

diff --git a/julia.c b/julia.c
new file mode 100644
index 0000000..aa63a9a
--- /dev/null
+++ b/julia.c
@@ -0,0 +1,31 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   julia.h                                            :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: ljiriste <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2023/12/05 19:57:50 by ljiriste          #+#    #+#             */
+/*   Updated: 2023/12/05 20:16:54 by ljiriste         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <math.h>
+#include "vect2.h"
+#include "complex.h"
+
+double	general_julia(void *zeroth, double resolution,
+						void (*tested_f)(void *), int (*is_over_thresh)(void *))
+{
+	int		count;
+
+	count = 0;
+	while (!is_over_thresh(zeroth) && count < 100 * resolution)
+	{
+		tested_f(zeroth);
+		++count;
+	}
+	if (count == 100 * resolution)
+		return (-1);
+	return (fmod(count / 100., 1.));
+}