Block Breaker

I’ve been following a course on Udemy on game development with Unity.

Block Breaker is an Arkanoid/Breakout clone.

I changed the script to move the paddle with the arrow keys.

You start the game by clicking on the screen or pressing the spacebar key.

Click here to play.

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.

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
1111132548Måns Grebäck2019-07-15Sweden
223695149Pizzadude - Jakob Fischer2019-07-15Denmark
34611510Johan Waldenström2019-07-15Sweden
43530858Carl Krull2019-07-15Denmark
53245296Fontourist - Hans Gerhard Meier2019-07-15Norway
62906460Johan Aakerlund2019-07-15Denmark
72759667Listemageren - Klaus Johansen2019-07-15Denmark
82482813CheapProFonts - Roger S. Nelsson2019-07-15Norway
91953793HENRIavecunK - Henrik2019-07-15Sweden
101288792Flight of the Dragon - Hasan Guven2019-07-15Norway
111116136Christian Munk2019-07-15Denmark
12719329Adam Ericsson2019-07-15Sweden
13717737Your Own Font - Ellinor Rapp2019-07-15Sweden
14708460bogstav2019-07-15Denmark
15558915Vinterstille TypeFaceLab - Klaus Nielsen2019-07-15Denmark
16505245Viktor Hammarberg2019-07-15Sweden
17477164Moonbase Press - Svein Kåre Gunnarson2019-07-15Norway
18409407Espen Morten Kvalheim2019-07-15Norway
19386267Thor Christopher Arisland2019-07-15Norway
20355686Staffan Vilcans2019-07-15Sweden
21340797Martin Holm2019-07-15Norway
22319267Jonas Borneland Hansen2019-07-15Denmark
23236846Norwegian Ink / Design for Dough - Frode Nordbø2019-07-15Norway
24210006David Engelby2019-07-15Denmark
25207787Anton - Anton Lundström2019-07-15Sweden
26200169dawnland - Daniel Viberg2019-07-15Sweden
27180103211178 Creative Agency - Morten Talleivsen2019-07-15Norway
28141456Martin Sørensen2019-07-15Denmark
29113175Andreas Larsen2019-07-15Denmark
30108088Nils Kähler2019-07-15Denmark
3198641Bolahool Graphics2019-07-15Sweden
3294597McKack2019-07-15Norway
3390548Joaquim Marquès Nielsen2019-07-15Denmark
3488394Anton Bohlin2019-07-15Sweden
3582940Pär Lundkvist2019-07-15Sweden
3676000Digital Flame Studios - sindre små2019-07-15Norway
3773390Intense2019-07-15Norway
3864848huskmelk - Rashid Akrim2019-07-15Norway
3960812Kyrre Honohan2019-07-15Norway
4055503Pia Hed Aspell2019-07-15Sweden
4154252Nadia Rosenfeldt2019-07-15Denmark
4252192Linn Mustanoja2019-07-15Sweden
4350718Lars Håhus2019-07-15Sweden
4448213Carl Enlund2019-07-15Sweden
4544971ronjam - Ronja Melcker2019-07-15Sweden
4642473Atle Mo2019-07-15Norway
4736824Erik Jeddere-Fisher2019-07-15Norway
4833853Arman Ay2019-07-15Sweden
4933800benjamin rauber2019-07-15Sweden
5033511charmingfan2019-07-15Denmark
5127996Studio Indigo - Helena Öhman2019-07-15Sweden
5227360Mark Lund2019-07-15Norway
5326967Botond Bokor2019-07-15Sweden
5426670Dan Thorup2019-07-15Denmark
5526201Andrew Nordquist2019-07-15Sweden
5625924Lisa2019-07-15Norway
5724975Aske Ching2019-07-15Denmark
5824737Benjamin Blåholtz2019-07-15Sweden
5921888Andreas2019-07-15Sweden
6021579Erik Holm2019-07-15Norway
6121077Henrik Johansson2019-07-15Sweden
6220900Bull - Sandra Madsen2019-07-15Denmark
6320720David Lindecrantz2019-07-15Sweden
6420014Kristian Dalen2019-07-15Norway
6517606Christian Koch2019-07-15Denmark
6617326Mandy Pandy2019-07-15Sweden
6713643Alexander Rossebø2019-07-15Norway
6812772Johan Brodd2019-07-15Sweden
6911701Viktor Örneland2019-07-15Sweden
709963Mathias Alvebring2019-07-15Sweden
719696Boksen2019-07-15Norway
727889vardcentralen2019-07-15Sweden
737699Mathias Rue2019-07-15Denmark
747222Manuela Hardy2019-07-15Norway
757115Gröt Havregrynsson2019-07-15Sweden
766904Caesar2019-07-15Sweden
776857Sara Lindberg2019-07-15Sweden
786471Mattis Folkestad2019-07-15Norway
796073Oliver Waldemar2019-07-15Sweden
805184Simon Jakobsson2019-07-15Sweden
814411KingDGaming - Elias Eriksson2019-07-15Sweden

Regex 101

Today I received an email from the store I used to work at asking me to make a printer friendly version of an online table of information.

As I learned more about regular expressions from the “INF3331” course I took this fall, solving this problem proved to be way easier than any previous attempts at the likes of it.

At times I’ve thought that regexes are harder to read and debug than ordinary programming languages, but with a good editor like Atom or the regex101 page, it all became a lot less stressful.

As far as editors go, I have to admit that I still use emacs when I’m not using an IDE or GUI-editor.

Note to self about regular expressions.

(.*?) to capture zero or more characters in a non-greedy manner

(?:.*?) for the same grouping without backreferences.

$1 or $[group-number] for backreferences in JavaScript and Atom

\1 or \[group-number] for backreferences in Python, PHP.

Perl and PHP also uses \g1 or \g[group-number] for backreferences.

The following characters need to be escaped in regex:

.^$*+?()[{\|