Tilemaps Day 2

This evening I continued experimenting with designing pixelated tiles at a 32X32 resolution.

My “Hothead” font is available for sale on Creative Fabrica here.


Lately I’ve been following some Udemy courses, particularly the one on 2D game Design with Unity.

In the course I started learning about tilemaps and so I started drawing some of my own today.

For prototyping the tilemap I made a sample scene, which I found out was useful as an illustration photo for one of my new fonts: Hothead.

It’s fun when the different skills come together and supplement each other.

My new font is available on DaFont here.

EAN Barcodes and GEPIR

A simple search application for searching through the Product Open Database can be found here.

I’ve been working more on Code128 by writing programs that both create Code128 from strings directly and making my own Code128 font based on the Wikipedia entry.

Then I became curious about the EAN13 symbology and thought I’d have a go at making an EAN SVG program that takes the first twelve digits of an EAN and creates a barcode in SVG format.

The Java code can be found on github here.

Here’s some of the more interesting functions.

public class EAN {

	HashMap<String, String[]> table = new HashMap<String, String[]>();
	String lgr;
	String number;
	String binaryString;
	int checksum;

	public static String binToDecSeq(String seq) {
		String s = "";
		int sum = 1;
		for(int i = 1; i < seq.length(); i++) {
			if(seq.charAt(i) != seq.charAt(i - 1)) {
				s = s + sum;
				sum = 1;
			} else {
			if(i == seq.length() - 1) {
				s = s + sum;
		return s;

	public static String createBinaryString(String number, String lgr, HashMap<String, String[]> table) {
		String binaryString = "";
		lgr = lgr + "RRRRRR";
		number = number.substring(1);
		binaryString += "101";
		for(int i = 0; i < number.length(); i++) {
			binaryString += table.get("" + lgr.charAt(i))[Character.getNumericValue(number.charAt(i))];
			if(i == 5)
				binaryString += "01010";
		binaryString += "101";
		return binaryString;
	public static HashMap<String, String[]> makeTable() {
		HashMap<String, String[]> table = new HashMap<String, String[]>();
		table.put("L", new String[] { "0001101", "0011001", "0010011", "0111101", "0100011", "0110001",
				"0101111", "0111011", "0110111", "0001011" });
		table.put("R", new String[] { "1110010", "1100110", "1101100", "1000010", "1011100", "1001110",
				"1010000", "1000100", "1001000", "1110100" });
		table.put("G", new String[] { "0100111", "0110011", "0011011", "0100001", "0011101", "0111001",
				"0000101", "0010001", "0001001", "0010111" });
		return table;
	public static int calculateChecksum(String twelveDigits) {
		int checksum = 0;
		for(int i = 0; i < twelveDigits.length() && i < 12; i++) {
			String s = "" + twelveDigits.charAt(i);
			if(i % 2 == 0) {
				checksum += Integer.parseInt(s) * 1;
			} else {
				checksum += Integer.parseInt(s) * 3;
		checksum = 10 - (checksum % 10);
		return checksum;


Web-Drafter update: Color Picker

My very tiny vector graphics application is improving at a snail pace.

I managed to make a colour picker using jQuery and the HTML range input element.

The code isn’t exactly succinct, but it gets the job done.

Because the program is growing larger, I’m trying to use the OOP facets of JavaScript and put the functions in their respective objects as much as possible, the loose functions in the posfunc.js file creates the dialog:

function color_selector_form(color) {
    frgb = color.get_fill_rgb();
    srgb = color.get_stroke_rgb();

    var red_slider = "<input class='fill_slider' id='red_slider' value="+frgb[0]+" type=\"range\" min=\"0\" max=\"255\"> <br> <div id='rfval' >"+frgb[0]+"</div><br> ";
    var green_slider = "<input class='fill_slider' id='green_slider' value="+frgb[1]+" type=\"range\" min=\"0\" max=\"255\"> <br> <div id='gfval' >"+frgb[1]+"</div><br>";
    var blue_slider = "<input class='fill_slider' id='blue_slider' value="+frgb[2]+" type=\"range\" min=\"0\" max=\"255\"> <br> <div id='bfval' >"+frgb[2]+"</div><br>";
    var fcbox = "<span id=\"fillbox\" style=\"background-color: "+color.fill+"; display: block; height: 50px; width: 50px;\">&nbsp</span>";

    var red_stroke_slider = "<input class='stroke_slider' id='red_stroke_slider' value="+srgb[0]+" type=\"range\" min=\"0\" max=\"255\"> <br> <div id='rsval' >"+srgb[0]+"</div><br> ";
    var green_stroke_slider = "<input class='stroke_slider' id='green_stroke_slider' value="+srgb[1]+" type=\"range\" min=\"0\" max=\"255\"> <br> <div id='gsval' >"+srgb[1]+"</div><br>";
    var blue_stroke_slider = "<input class='stroke_slider' id='blue_stroke_slider' value="+srgb[2]+" type=\"range\" min=\"0\" max=\"255\"> <br> <div id='bsval' >"+srgb[2]+"</div><br>";
    var scbox = "<span id=\"strokebox\" style=\"background-color: "+color.stroke+"; display: block; height: 50px; width: 50px;\">&nbsp</span>";

    var retval = "<table><tr><td>Fill<br><br>";
    retval += "Red: <br>" + red_slider + "Green: <br>" + green_slider + "Blue: <br>" + blue_slider + "<br>" + fcbox;
    retval += "</td><td>&nbsp&nbsp&nbsp</td><td>Stroke<br><br>";
    retval += "Red: <br>" + red_stroke_slider + "Green: <br>" + green_stroke_slider + "Blue: <br>" + blue_stroke_slider + "<br>" + scbox;
    retval += "</td></tr></table>";
    return retval;

While the pos.js has the $(document).ready() functions for the dynamically created elements:

jQuery(document).on("change mousemove", ".fill_slider", function() {
   selected_color.update_fill(jQuery(this).val(), jQuery(this).attr("id"));
   var id = jQuery(this).attr("id");
   //console.log(id + " " +jQuery(this).val());
   if(id.substring(1, 2) == "r") {
       } else  if(id.substring(1, 2) == "g") {
       } else  if(id.substring(1, 2) == "b") {

Which in turn calls the appropriate methods in the MyColor object.

MyColor.prototype.update_fill = function(colorval, id) {
    var hexredval = parseInt(colorval).toString(16);
    if(hexredval.length < 2)
        hexredval = "0" + hexredval;
    var channel = id.substring(0,1);
    if(channel == "r")
        this.fill = (this.fill.substring(0, 1) + hexredval.substring(0, 2) + this.fill.substring(3)).toUpperCase();
    else if(channel == "g")
        this.fill = (this.fill.substring(0, 3) + hexredval.substring(0, 2) + this.fill.substring(5)).toUpperCase();
    else if(channel == "b")
        this.fill = (this.fill.substring(0, 5) + hexredval.substring(0, 2)).toUpperCase();
    jQuery("#" + channel + "fval").html(colorval);
    jQuery("#fillbox").css("background-color", this.fill);

As you can see, the code isn’t really DRY, but I find that making a clumsy solution is a great way to start a project and get anything done whatsoever, and then improve on it (or just keep it until it becomes cluttered).

Interactive jQuery Menu

A few days ago I was asked to update the layout of the website for a store I used to work at.

I thought this was a good chance to get to know jQuery animations, so I put together a bunch of stock images as background, edited pictures of frames and put some text in the frames for the icons.

I worked with artboards in Affinity Designer so I could export multiple images to different files, I also worked with groups and a transparent background so I could make .png files of the frames and put them on top of the background images.

That way I used the background-image css property, with display set to block and could superimpose a png with transparency over another image.

With jQuery I selected all images, where each image has a class “RT” and I used the reserved word this to select the particular instance for mouseover and mouseleave events.

With this I managed to make a fun little menu where the frame with the text grows and shrinks according to mouse-events.

The result can be seen here.


I noticed that my programming page was sadly empty.

So to have some actual content I started writing a bit about C so I can rehash and remind myself of what I’ve learned about the C programming language.

It’s some really basic stuff, and of course, I’ve made programs to do a lot more than just print to terminal and work on simple variables, but I have to start somewhere when I write about that stuff.

Let's start at the very beginning. 

A very good place to start.

When you read you begin with ABC.

When you code you compile with G C C

Fontstats Plugin

Today I finished a little WordPress plugin I’ve been working on.

It’s a two part plugin, one php script collects data from any Norwegian designer on DaFont by visiting each site, and by the power of Regex-Grayskull it inserts it into a database on my website.

The WordPress plugin then selects the last sampled date and displays it in a HTML-table on any post or page where I insert the registered shortcode.

Here’s the result:

No.DownloadsDesignerDate SampledCountry
1110703011Måns Grebäck2019-06-18Sweden
223603480Pizzadude - Jakob Fischer2019-06-18Denmark
34601855Johan Waldenström2019-06-18Sweden
43508400Carl Krull2019-06-18Denmark
53243218Fontourist - Hans Gerhard Meier2019-06-18Norway
62876572Johan Aakerlund2019-06-18Denmark
72755319Listemageren - Klaus Johansen2019-06-18Denmark
82475412CheapProFonts - Roger S. Nelsson2019-06-18Norway
91931436HENRIavecunK - Henrik2019-06-18Sweden
101286072Flight of the Dragon - Hasan Guven2019-06-18Norway
111111986Christian Munk2019-06-18Denmark
12717268Your Own Font - Ellinor Rapp2019-06-18Sweden
13707835Adam Ericsson2019-06-18Sweden
15558187Vinterstille TypeFaceLab - Klaus Nielsen2019-06-18Denmark
16503617Viktor Hammarberg2019-06-18Sweden
17473795Moonbase Press - Svein Kåre Gunnarson2019-06-18Norway
18409078Espen Morten Kvalheim2019-06-18Norway
19382978Thor Christopher Arisland2019-06-18Norway
20355251Staffan Vilcans2019-06-18Sweden
21339516Martin Holm2019-06-18Norway
22318811Jonas Borneland Hansen2019-06-18Denmark
23236570Norwegian Ink / Design for Dough - Frode Nordbø2019-06-18Norway
24209553David Engelby2019-06-18Denmark
25207576Anton - Anton Lundström2019-06-18Sweden
26199974dawnland - Daniel Viberg2019-06-18Sweden
27179695211178 Creative Agency - Morten Talleivsen2019-06-18Norway
28140753Martin Sørensen2019-06-18Denmark
29111103Andreas Larsen2019-06-18Denmark
30106803Nils Kähler2019-06-18Denmark
3198291Bolahool Graphics2019-06-18Sweden
3390460Joaquim Marquès Nielsen2019-06-18Denmark
3487822Anton Bohlin2019-06-18Sweden
3582908Pär Lundkvist2019-06-18Sweden
3675960Digital Flame Studios - sindre små2019-06-18Norway
3864649huskmelk - Rashid Akrim2019-06-18Norway
3960792Kyrre Honohan2019-06-18Norway
4055449Pia Hed Aspell2019-06-18Sweden
4154155Nadia Rosenfeldt2019-06-18Denmark
4252134Linn Mustanoja2019-06-18Sweden
4350567Lars Håhus2019-06-18Sweden
4444871ronjam - Ronja Melcker2019-06-18Sweden
4542343Atle Mo2019-06-18Norway
4636746Erik Jeddere-Fisher2019-06-18Norway
4733693benjamin rauber2019-06-18Sweden
4833675Arman Ay2019-06-18Sweden
5027454Studio Indigo - Helena Öhman2019-06-18Sweden
5127329Mark Lund2019-06-18Norway
5226870Botond Bokor2019-06-18Sweden
5326599Dan Thorup2019-06-18Denmark
5426573Carl Enlund2019-06-18Sweden
5526168Andrew Nordquist2019-06-18Sweden
5724942Aske Ching2019-06-18Denmark
5921458Erik Holm2019-06-18Norway
6021199Benjamin Blåholtz2019-06-18Sweden
6120998Henrik Johansson2019-06-18Sweden
6220878Bull - Sandra Madsen2019-06-18Denmark
6320676David Lindecrantz2019-06-18Sweden
6419998Kristian Dalen2019-06-18Norway
6517302Mandy Pandy2019-06-18Sweden
6615135Christian Koch2019-06-18Denmark
6713602Alexander Rossebø2019-06-18Norway
6812752Johan Brodd2019-06-18Sweden
6911654Viktor Örneland2019-06-18Sweden
709930Mathias Alvebring2019-06-18Sweden
737685Mathias Rue2019-06-18Denmark
747201Manuela Hardy2019-06-18Norway
757068Gröt Havregrynsson2019-06-18Sweden
776830Sara Lindberg2019-06-18Sweden
786456Mattis Folkestad2019-06-18Norway
796028Oliver Waldemar2019-06-18Sweden
805159Simon Jakobsson2019-06-18Sweden
814396KingDGaming - Elias Eriksson2019-06-18Sweden