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.

Tilemap

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 {
				sum++;
			}
			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" });
		table.put("LGR", new String[] { "LLLLLLRRRRRR", "LLGLGGRRRRRR", "LLGGLGRRRRRR", "LLGGGLRRRRRR", "LGLLGGRRRRRR",
				"LGGLLGRRRRRR", "LGGGLLRRRRRR", "LGLGLGRRRRRR", "LGLGGLRRRRRR", "LGGLGLRRRRRR" });
		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") {
        jQuery("#red_val").html(jQuery(this).val());
       } else  if(id.substring(1, 2) == "g") {
           jQuery("#green_val").html(jQuery(this).val());
       } else  if(id.substring(1, 2) == "b") {
           jQuery("#blue_val").html(jQuery(this).val());
       }
   });

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);
    update_color(this);
}

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.

C

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
1108757289Måns Grebäck2019-02-17Sweden
223163269Pizzadude - Jakob Fischer2019-02-17Denmark
34553578Johan Waldenström2019-02-17Sweden
43412218Mr.fisk Fonts - Mike Larsson2019-02-17Sweden
53396150Carl Krull2019-02-17Denmark
63232632Fontourist - Hans Gerhard Meier2019-02-17Norway
72734546Johan Aakerlund2019-02-17Denmark
82731634Listemageren - Klaus Johansen2019-02-17Denmark
92438931CheapProFonts - Roger S. Nelsson2019-02-17Norway
101772736HENRIavecunK - Henrik2019-02-17Sweden
111272146Flight of the Dragon - Hasan Guven2019-02-17Norway
121088543Christian Munk2019-02-17Denmark
13714952Your Own Font - Ellinor Rapp2019-02-17Sweden
14657015Adam Ericsson2019-02-17Sweden
15651495bogstav2019-02-17Denmark
16554594Vinterstille TypeFaceLab - Klaus Nielsen2019-02-17Denmark
17494595Viktor Hammarberg2019-02-17Sweden
18457768Moonbase Press - Svein Kåre Gunnarson2019-02-17Norway
19407581Espen Morten Kvalheim2019-02-17Norway
20360003Thor Christopher Arisland2019-02-17Norway
21352913Staffan Vilcans2019-02-17Sweden
22330833Martin Holm2019-02-17Norway
23316653Jonas Borneland Hansen2019-02-17Denmark
24235144Norwegian Ink / Design for Dough - Frode Nordbø2019-02-17Norway
25207458David Engelby2019-02-17Denmark
26206540Anton - Anton Lundström2019-02-17Sweden
27199008dawnland - Daniel Viberg2019-02-17Sweden
28177792211178 Creative Agency - Morten Talleivsen2019-02-17Norway
29137440Martin Sørensen2019-02-17Denmark
30102253Andreas Larsen2019-02-17Denmark
3198885Nils Kähler2019-02-17Denmark
3296701Bolahool Graphics2019-02-17Sweden
3394172McKack2019-02-17Norway
3490096Joaquim Marquès Nielsen2019-02-17Denmark
3585090Anton Bohlin2019-02-17Sweden
3682736Pär Lundkvist2019-02-17Sweden
3775731Digital Flame Studios - sindre små2019-02-17Norway
3873053Intense2019-02-17Norway
3963698huskmelk - Rashid Akrim2019-02-17Norway
4060619Kyrre Honohan2019-02-17Norway
4155207Pia Hed Aspell2019-02-17Sweden
4253709Nadia Rosenfeldt2019-02-17Denmark
4351822Linn Mustanoja2019-02-17Sweden
4449889Lars Håhus2019-02-17Sweden
4544398ronjam - Ronja Melcker2019-02-17Sweden
4641739Atle Mo2019-02-17Norway
4736399Erik Jeddere-Fisher2019-02-17Norway
4833389charmingfan2019-02-17Denmark
4933078benjamin rauber2019-02-17Sweden
5032731Arman Ay2019-02-17Sweden
5127169Mark Lund2019-02-17Norway
5226486Botond Bokor2019-02-17Sweden
5326221Dan Thorup2019-02-17Denmark
5426026Andrew Nordquist2019-02-17Sweden
5525857Lisa2019-02-17Norway
5624847Carl Enlund2019-02-17Sweden
5724759Aske Ching2019-02-17Denmark
5823471Studio Indigo - Helena Öhman2019-02-17Sweden
5921756Andreas2019-02-17Sweden
6020935Erik Holm2019-02-17Norway
6120761Bull - Sandra Madsen2019-02-17Denmark
6220706Henrik Johansson2019-02-17Sweden
6320500David Lindecrantz2019-02-17Sweden
6419909Kristian Dalen2019-02-17Norway
6517187Mandy Pandy2019-02-17Sweden
6614901Christian Koch2019-02-17Denmark
6713348Alexander Rossebø2019-02-17Norway
6812676Johan Brodd2019-02-17Sweden
6911438Viktor Örneland2019-02-17Sweden
709777Mathias Alvebring2019-02-17Sweden
719559Boksen2019-02-17Norway
727793vardcentralen2019-02-17Sweden
737623Mathias Rue2019-02-17Denmark
747068Manuela Hardy2019-02-17Norway
756842Gröt Havregrynsson2019-02-17Sweden
766745Caesar2019-02-17Sweden
776704Sara Lindberg2019-02-17Sweden
786385Mattis Folkestad2019-02-17Norway
796228Benjamin Blåholtz2019-02-17Sweden
805771Oliver Waldemar2019-02-17Sweden
815077Simon Jakobsson2019-02-17Sweden
824324KingDGaming - Elias Eriksson2019-02-17Sweden