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
1111726091Måns Grebäck2019-08-22Sweden
223829630Pizzadude - Jakob Fischer2019-08-22Denmark
34631515Johan Waldenström2019-08-22Sweden
43563682Carl Krull2019-08-22Denmark
53248088Fontourist - Hans Gerhard Meier2019-08-22Norway
62947318Johan Aakerlund2019-08-22Denmark
72765772Listemageren - Klaus Johansen2019-08-22Denmark
82493554CheapProFonts - Roger S. Nelsson2019-08-22Norway
91989785HENRIavecunK - Henrik2019-08-22Sweden
101292424Flight of the Dragon - Hasan Guven2019-08-22Norway
111123186Christian Munk2019-08-22Denmark
12735187Adam Ericsson2019-08-22Sweden
14718414Your Own Font - Ellinor Rapp2019-08-22Sweden
15560123Vinterstille TypeFaceLab - Klaus Nielsen2019-08-22Denmark
16507905Viktor Hammarberg2019-08-22Sweden
17482087Moonbase Press - Svein Kåre Gunnarson2019-08-22Norway
18409878Espen Morten Kvalheim2019-08-22Norway
19390980Thor Christopher Arisland2019-08-22Norway
20356411Staffan Vilcans2019-08-22Sweden
21342911Martin Holm2019-08-22Norway
22319772Jonas Borneland Hansen2019-08-22Denmark
23237275Norwegian Ink / Design for Dough - Frode Nordbø2019-08-22Norway
24210555David Engelby2019-08-22Denmark
25208043Anton - Anton Lundström2019-08-22Sweden
26200435dawnland - Daniel Viberg2019-08-22Sweden
27180714211178 Creative Agency - Morten Talleivsen2019-08-22Norway
28142448Martin Sørensen2019-08-22Denmark
29116045Andreas Larsen2019-08-22Denmark
30109786Nils Kähler2019-08-22Denmark
3199123Bolahool Graphics2019-08-22Sweden
3390691Joaquim Marquès Nielsen2019-08-22Denmark
3489126Anton Bohlin2019-08-22Sweden
3582978Pär Lundkvist2019-08-22Sweden
3676055Digital Flame Studios - sindre små2019-08-22Norway
3865077huskmelk - Rashid Akrim2019-08-22Norway
3960856Kyrre Honohan2019-08-22Norway
4059160Carl Enlund2019-08-22Sweden
4155592Pia Hed Aspell2019-08-22Sweden
4254389Nadia Rosenfeldt2019-08-22Denmark
4352262Linn Mustanoja2019-08-22Sweden
4450916Lars Håhus2019-08-22Sweden
4545107ronjam - Ronja Melcker2019-08-22Sweden
4642630Atle Mo2019-08-22Norway
4736892Erik Jeddere-Fisher2019-08-22Norway
4834126Arman Ay2019-08-22Sweden
4933989benjamin rauber2019-08-22Sweden
5128696Studio Indigo - Helena Öhman2019-08-22Sweden
5228204Benjamin Blåholtz2019-08-22Sweden
5327403Mark Lund2019-08-22Norway
5427096Botond Bokor2019-08-22Sweden
5526768Dan Thorup2019-08-22Denmark
5626227Andrew Nordquist2019-08-22Sweden
5825024Aske Ching2019-08-22Denmark
5924732Christian Koch2019-08-22Denmark
6121756Erik Holm2019-08-22Norway
6221143Henrik Johansson2019-08-22Sweden
6320935Bull - Sandra Madsen2019-08-22Denmark
6420784David Lindecrantz2019-08-22Sweden
6520050Kristian Dalen2019-08-22Norway
6617369Mandy Pandy2019-08-22Sweden
6713784Alexander Rossebø2019-08-22Norway
6812807Johan Brodd2019-08-22Sweden
6911749Viktor Örneland2019-08-22Sweden
7010011Mathias Alvebring2019-08-22Sweden
737727Mathias Rue2019-08-22Denmark
747265Manuela Hardy2019-08-22Norway
757172Gröt Havregrynsson2019-08-22Sweden
776900Sara Lindberg2019-08-22Sweden
786486Mattis Folkestad2019-08-22Norway
796149Oliver Waldemar2019-08-22Sweden
805219Simon Jakobsson2019-08-22Sweden
814431KingDGaming - Elias Eriksson2019-08-22Sweden