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
1109288666Måns Grebäck2019-03-19Sweden
223292223Pizzadude - Jakob Fischer2019-03-19Denmark
34565689Johan Waldenström2019-03-19Sweden
43424469Carl Krull2019-03-19Denmark
53235359Fontourist - Hans Gerhard Meier2019-03-19Norway
62767963Johan Aakerlund2019-03-19Denmark
72738035Listemageren - Klaus Johansen2019-03-19Denmark
82448463CheapProFonts - Roger S. Nelsson2019-03-19Norway
91832808HENRIavecunK - Henrik2019-03-19Sweden
101275785Flight of the Dragon - Hasan Guven2019-03-19Norway
111095155Christian Munk2019-03-19Denmark
12715592Your Own Font - Ellinor Rapp2019-03-19Sweden
14661551Adam Ericsson2019-03-19Sweden
15555547Vinterstille TypeFaceLab - Klaus Nielsen2019-03-19Denmark
16497030Viktor Hammarberg2019-03-19Sweden
17462026Moonbase Press - Svein Kåre Gunnarson2019-03-19Norway
18407996Espen Morten Kvalheim2019-03-19Norway
19366445Thor Christopher Arisland2019-03-19Norway
20353594Staffan Vilcans2019-03-19Sweden
21333122Martin Holm2019-03-19Norway
22317221Jonas Borneland Hansen2019-03-19Denmark
23235562Norwegian Ink / Design for Dough - Frode Nordbø2019-03-19Norway
24208014David Engelby2019-03-19Denmark
25206786Anton - Anton Lundström2019-03-19Sweden
26199249dawnland - Daniel Viberg2019-03-19Sweden
27178311211178 Creative Agency - Morten Talleivsen2019-03-19Norway
28138381Martin Sørensen2019-03-19Denmark
29104166Andreas Larsen2019-03-19Denmark
30100782Nils Kähler2019-03-19Denmark
3197136Bolahool Graphics2019-03-19Sweden
3390206Joaquim Marquès Nielsen2019-03-19Denmark
3485712Anton Bohlin2019-03-19Sweden
3582779Pär Lundkvist2019-03-19Sweden
3675791Digital Flame Studios - sindre små2019-03-19Norway
3863946huskmelk - Rashid Akrim2019-03-19Norway
3960669Kyrre Honohan2019-03-19Norway
4055276Pia Hed Aspell2019-03-19Sweden
4153821Nadia Rosenfeldt2019-03-19Denmark
4251912Linn Mustanoja2019-03-19Sweden
4350072Lars Håhus2019-03-19Sweden
4444535ronjam - Ronja Melcker2019-03-19Sweden
4541893Atle Mo2019-03-19Norway
4636500Erik Jeddere-Fisher2019-03-19Norway
4833261benjamin rauber2019-03-19Sweden
4932992Arman Ay2019-03-19Sweden
5027214Mark Lund2019-03-19Norway
5126587Botond Bokor2019-03-19Sweden
5226314Dan Thorup2019-03-19Denmark
5326071Andrew Nordquist2019-03-19Sweden
5525248Carl Enlund2019-03-19Sweden
5624810Aske Ching2019-03-19Denmark
5724237Studio Indigo - Helena Öhman2019-03-19Sweden
5921091Erik Holm2019-03-19Norway
6020786Bull - Sandra Madsen2019-03-19Denmark
6120781Henrik Johansson2019-03-19Sweden
6220551David Lindecrantz2019-03-19Sweden
6319932Kristian Dalen2019-03-19Norway
6417229Mandy Pandy2019-03-19Sweden
6514957Christian Koch2019-03-19Denmark
6613418Alexander Rossebø2019-03-19Norway
6712702Johan Brodd2019-03-19Sweden
6811503Viktor Örneland2019-03-19Sweden
699822Mathias Alvebring2019-03-19Sweden
727737Benjamin Blåholtz2019-03-19Sweden
737645Mathias Rue2019-03-19Denmark
747102Manuela Hardy2019-03-19Norway
756905Gröt Havregrynsson2019-03-19Sweden
776749Sara Lindberg2019-03-19Sweden
786401Mattis Folkestad2019-03-19Norway
795831Oliver Waldemar2019-03-19Sweden
805108Simon Jakobsson2019-03-19Sweden
814346KingDGaming - Elias Eriksson2019-03-19Sweden