1 /*
 2  * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
 3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 4  *
 5  * This code is free software; you can redistribute it and/or modify it
 6  * under the terms of the GNU General Public License version 2 only, as
 7  * published by the Free Software Foundation.  Oracle designates this
 8  * particular file as subject to the "Classpath" exception as provided
 9  * by Oracle in the LICENSE file that accompanied this code.
10  *
11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
16  *
17  * You should have received a copy of the GNU General Public License version
18  * 2 along with this work; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20  *
21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22  * or visit www.oracle.com if you need additional information or have any
23  * questions.
24  */
25 package hat.tools.textmodel.terminal;
26 public class TestANSI {
27     static void main(String[] args) {
28         var colorizer = ANSI.of(System.out);
29         var image = colorizer.img(200, 200);
30         for (int frame = 0; frame < 40; frame++) {
31             image.clean().home();
32             image.clean().home();
33 
34             double realMin = -2.0;
35             double realMax = 1.0;
36             double imagMin = -1.5;
37             double imagMax = 1.5;
38             int maxIterations = frame / 2; // Maximum number of iterations for each point
39             double escapeRadiusSquared = 4.0; // If |z|^2 exceeds this, the point escapes
40 
41             for (int y = 0; y < image.height; y++) {
42                 for (int x = 0; x < image.width; x++) {
43                     double cReal = realMin + (double) x / image.width * (realMax - realMin);
44                     double cImag = imagMin + (double) y / image.height * (imagMax - imagMin);
45                     double zReal = 0.0;
46                     double zImag = 0.0;
47                     int iteration = 0;
48                     while (zReal * zReal + zImag * zImag < escapeRadiusSquared && iteration < maxIterations) {
49                         double nextZReal = zReal * zReal - zImag * zImag + cReal;
50                         double nextZImag = 2 * zReal * zImag + cImag;
51                         zReal = nextZReal;
52                         zImag = nextZImag;
53                         iteration++;
54                     }
55                     if (iteration == maxIterations) {
56                         image.set(x, y);
57                     }
58                 }
59             }
60             image.map().write();
61             image.delay(100);
62         }
63     }
64 }
65 
66