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
1109796821Måns Grebäck2019-04-21Sweden
223405702Pizzadude - Jakob Fischer2019-04-21Denmark
34579114Johan Waldenström2019-04-21Sweden
43457243Carl Krull2019-04-21Denmark
53238429Fontourist - Hans Gerhard Meier2019-04-21Norway
62809763Johan Aakerlund2019-04-21Denmark
72744197Listemageren - Klaus Johansen2019-04-21Denmark
82458775CheapProFonts - Roger S. Nelsson2019-04-21Norway
91878538HENRIavecunK - Henrik2019-04-21Sweden
101279622Flight of the Dragon - Hasan Guven2019-04-21Norway
111101478Christian Munk2019-04-21Denmark
12716181Your Own Font - Ellinor Rapp2019-04-21Sweden
13680093Adam Ericsson2019-04-21Sweden
15556495Vinterstille TypeFaceLab - Klaus Nielsen2019-04-21Denmark
16499880Viktor Hammarberg2019-04-21Sweden
17466674Moonbase Press - Svein Kåre Gunnarson2019-04-21Norway
18408387Espen Morten Kvalheim2019-04-21Norway
19372969Thor Christopher Arisland2019-04-21Norway
20354205Staffan Vilcans2019-04-21Sweden
21335706Martin Holm2019-04-21Norway
22317895Jonas Borneland Hansen2019-04-21Denmark
23235946Norwegian Ink / Design for Dough - Frode Nordbø2019-04-21Norway
24208638David Engelby2019-04-21Denmark
25207079Anton - Anton Lundström2019-04-21Sweden
26199508dawnland - Daniel Viberg2019-04-21Sweden
27178837211178 Creative Agency - Morten Talleivsen2019-04-21Norway
28139275Martin Sørensen2019-04-21Denmark
29106769Andreas Larsen2019-04-21Denmark
30103068Nils Kähler2019-04-21Denmark
3197552Bolahool Graphics2019-04-21Sweden
3390302Joaquim Marquès Nielsen2019-04-21Denmark
3486525Anton Bohlin2019-04-21Sweden
3582830Pär Lundkvist2019-04-21Sweden
3675856Digital Flame Studios - sindre små2019-04-21Norway
3864184huskmelk - Rashid Akrim2019-04-21Norway
3960716Kyrre Honohan2019-04-21Norway
4055330Pia Hed Aspell2019-04-21Sweden
4153949Nadia Rosenfeldt2019-04-21Denmark
4251987Linn Mustanoja2019-04-21Sweden
4350276Lars Håhus2019-04-21Sweden
4444647ronjam - Ronja Melcker2019-04-21Sweden
4542059Atle Mo2019-04-21Norway
4636607Erik Jeddere-Fisher2019-04-21Norway
4833421benjamin rauber2019-04-21Sweden
4933233Arman Ay2019-04-21Sweden
5027256Mark Lund2019-04-21Norway
5126685Botond Bokor2019-04-21Sweden
5226419Dan Thorup2019-04-21Denmark
5326099Andrew Nordquist2019-04-21Sweden
5525712Carl Enlund2019-04-21Sweden
5625322Studio Indigo - Helena Öhman2019-04-21Sweden
5724854Aske Ching2019-04-21Denmark
5921232Erik Holm2019-04-21Norway
6020885Henrik Johansson2019-04-21Sweden
6120823Bull - Sandra Madsen2019-04-21Denmark
6220591David Lindecrantz2019-04-21Sweden
6319951Kristian Dalen2019-04-21Norway
6417260Mandy Pandy2019-04-21Sweden
6515030Christian Koch2019-04-21Denmark
6613494Alexander Rossebø2019-04-21Norway
6712718Johan Brodd2019-04-21Sweden
6811558Viktor Örneland2019-04-21Sweden
699864Mathias Alvebring2019-04-21Sweden
718586Benjamin Blåholtz2019-04-21Sweden
737661Mathias Rue2019-04-21Denmark
747146Manuela Hardy2019-04-21Norway
756956Gröt Havregrynsson2019-04-21Sweden
776779Sara Lindberg2019-04-21Sweden
786423Mattis Folkestad2019-04-21Norway
795894Oliver Waldemar2019-04-21Sweden
805124Simon Jakobsson2019-04-21Sweden
814359KingDGaming - Elias Eriksson2019-04-21Sweden