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
1109856663Måns Grebäck2019-04-25Sweden
223418217Pizzadude - Jakob Fischer2019-04-25Denmark
34580925Johan Waldenström2019-04-25Sweden
43460759Carl Krull2019-04-25Denmark
53238781Fontourist - Hans Gerhard Meier2019-04-25Norway
62814451Johan Aakerlund2019-04-25Denmark
72744999Listemageren - Klaus Johansen2019-04-25Denmark
82460013CheapProFonts - Roger S. Nelsson2019-04-25Norway
91882700HENRIavecunK - Henrik2019-04-25Sweden
101280113Flight of the Dragon - Hasan Guven2019-04-25Norway
111102241Christian Munk2019-04-25Denmark
12716253Your Own Font - Ellinor Rapp2019-04-25Sweden
13681896Adam Ericsson2019-04-25Sweden
15556645Vinterstille TypeFaceLab - Klaus Nielsen2019-04-25Denmark
16500189Viktor Hammarberg2019-04-25Sweden
17467224Moonbase Press - Svein Kåre Gunnarson2019-04-25Norway
18408432Espen Morten Kvalheim2019-04-25Norway
19373829Thor Christopher Arisland2019-04-25Norway
20354284Staffan Vilcans2019-04-25Sweden
21335931Martin Holm2019-04-25Norway
22317968Jonas Borneland Hansen2019-04-25Denmark
23235985Norwegian Ink / Design for Dough - Frode Nordbø2019-04-25Norway
24208707David Engelby2019-04-25Denmark
25207106Anton - Anton Lundström2019-04-25Sweden
26199529dawnland - Daniel Viberg2019-04-25Sweden
27178908211178 Creative Agency - Morten Talleivsen2019-04-25Norway
28139376Martin Sørensen2019-04-25Denmark
29107085Andreas Larsen2019-04-25Denmark
30103356Nils Kähler2019-04-25Denmark
3197602Bolahool Graphics2019-04-25Sweden
3390310Joaquim Marquès Nielsen2019-04-25Denmark
3486638Anton Bohlin2019-04-25Sweden
3582835Pär Lundkvist2019-04-25Sweden
3675865Digital Flame Studios - sindre små2019-04-25Norway
3864209huskmelk - Rashid Akrim2019-04-25Norway
3960722Kyrre Honohan2019-04-25Norway
4055334Pia Hed Aspell2019-04-25Sweden
4153956Nadia Rosenfeldt2019-04-25Denmark
4252001Linn Mustanoja2019-04-25Sweden
4350308Lars Håhus2019-04-25Sweden
4444659ronjam - Ronja Melcker2019-04-25Sweden
4542074Atle Mo2019-04-25Norway
4636617Erik Jeddere-Fisher2019-04-25Norway
4833437benjamin rauber2019-04-25Sweden
4933262Arman Ay2019-04-25Sweden
5027259Mark Lund2019-04-25Norway
5126693Botond Bokor2019-04-25Sweden
5226430Dan Thorup2019-04-25Denmark
5326099Andrew Nordquist2019-04-25Sweden
5525756Carl Enlund2019-04-25Sweden
5625443Studio Indigo - Helena Öhman2019-04-25Sweden
5724859Aske Ching2019-04-25Denmark
5921247Erik Holm2019-04-25Norway
6020889Henrik Johansson2019-04-25Sweden
6120826Bull - Sandra Madsen2019-04-25Denmark
6220599David Lindecrantz2019-04-25Sweden
6319952Kristian Dalen2019-04-25Norway
6417262Mandy Pandy2019-04-25Sweden
6515038Christian Koch2019-04-25Denmark
6613500Alexander Rossebø2019-04-25Norway
6712718Johan Brodd2019-04-25Sweden
6811563Viktor Örneland2019-04-25Sweden
699869Mathias Alvebring2019-04-25Sweden
718650Benjamin Blåholtz2019-04-25Sweden
737661Mathias Rue2019-04-25Denmark
747147Manuela Hardy2019-04-25Norway
756965Gröt Havregrynsson2019-04-25Sweden
776784Sara Lindberg2019-04-25Sweden
786426Mattis Folkestad2019-04-25Norway
795901Oliver Waldemar2019-04-25Sweden
805127Simon Jakobsson2019-04-25Sweden
814363KingDGaming - Elias Eriksson2019-04-25Sweden