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
1107623175Måns Grebäck2018-12-18Sweden
222893524Pizzadude - Jakob Fischer2018-12-18Denmark
34531203Johan Waldenström2018-12-18Sweden
43403811Mr.fisk Fonts - Mike Larsson2018-12-18Sweden
53343239Carl Krull2018-12-18Denmark
63227299Fontourist - Hans Gerhard Meier2018-12-18Norway
72720638Listemageren - Klaus Johansen2018-12-18Denmark
82674281Johan Aakerlund2018-12-18Denmark
92420797CheapProFonts - Roger S. Nelsson2018-12-18Norway
101712104HENRIavecunK - Henrik2018-12-18Sweden
111265593Flight of the Dragon - Hasan Guven2018-12-18Norway
121074932Christian Munk2018-12-18Denmark
13713833Your Own Font - Ellinor Rapp2018-12-18Sweden
14626292bogstav2018-12-18Denmark
15617794Adam Ericsson2018-12-18Sweden
16552992Vinterstille TypeFaceLab - Klaus Nielsen2018-12-18Denmark
17489794Viktor Hammarberg2018-12-18Sweden
18450060Moonbase Press - Svein Kåre Gunnarson2018-12-18Norway
19406857Espen Morten Kvalheim2018-12-18Norway
20351711Staffan Vilcans2018-12-18Sweden
21345054Thor Christopher Arisland2018-12-18Norway
22327613Martin Holm2018-12-18Norway
23315653Jonas Borneland Hansen2018-12-18Denmark
24234401Norwegian Ink / Design for Dough - Frode Nordbø2018-12-18Norway
25206490David Engelby2018-12-18Denmark
26205992Anton - Anton Lundström2018-12-18Sweden
27198538dawnland - Daniel Viberg2018-12-18Sweden
28176882211178 Creative Agency - Morten Talleivsen2018-12-18Norway
29135811Martin Sørensen2018-12-18Denmark
3098722Andreas Larsen2018-12-18Denmark
3196204Nils Kähler2018-12-18Denmark
3296004Bolahool Graphics2018-12-18Sweden
3394025McKack2018-12-18Norway
3489920Joaquim Marquès Nielsen2018-12-18Denmark
3583952Anton Bohlin2018-12-18Sweden
3682628Pär Lundkvist2018-12-18Sweden
3775649Digital Flame Studios - sindre små2018-12-18Norway
3872919Intense2018-12-18Norway
3963361huskmelk - Rashid Akrim2018-12-18Norway
4060550Kyrre Honohan2018-12-18Norway
4155076Pia Hed Aspell2018-12-18Sweden
4253458Nadia Rosenfeldt2018-12-18Denmark
4351606Linn Mustanoja2018-12-18Sweden
4449533Lars Håhus2018-12-18Sweden
4544146ronjam - Ronja Melcker2018-12-18Sweden
4641447Atle Mo2018-12-18Norway
4736247Erik Jeddere-Fisher2018-12-18Norway
4833337charmingfan2018-12-18Denmark
4932772benjamin rauber2018-12-18Sweden
5032257Arman Ay2018-12-18Sweden
5127065Mark Lund2018-12-18Norway
5226277Botond Bokor2018-12-18Sweden
5326051Dan Thorup2018-12-18Denmark
5425953Andrew Nordquist2018-12-18Sweden
5525827Lisa2018-12-18Norway
5624643Aske Ching2018-12-18Denmark
5723667Carl Enlund2018-12-18Sweden
5821812Studio Indigo - Helena Öhman2018-12-18Sweden
5921711Andreas2018-12-18Sweden
6020710Bull - Sandra Madsen2018-12-18Denmark
6120652Erik Holm2018-12-18Norway
6220546Henrik Johansson2018-12-18Sweden
6320392David Lindecrantz2018-12-18Sweden
6419876Kristian Dalen2018-12-18Norway
6517130Mandy Pandy2018-12-18Sweden
6614784Christian Koch2018-12-18Denmark
6713208Alexander Rossebø2018-12-18Norway
6812634Johan Brodd2018-12-18Sweden
6911340Viktor Örneland2018-12-18Sweden
709703Mathias Alvebring2018-12-18Sweden
719499Boksen2018-12-18Norway
727756vardcentralen2018-12-18Sweden
737595Mathias Rue2018-12-18Denmark
747004Manuela Hardy2018-12-18Norway
756739Gröt Havregrynsson2018-12-18Sweden
766695Caesar2018-12-18Sweden
776652Sara Lindberg2018-12-18Sweden
786349Mattis Folkestad2018-12-18Norway
795682Oliver Waldemar2018-12-18Sweden
805035Simon Jakobsson2018-12-18Sweden
814295KingDGaming - Elias Eriksson2018-12-18Sweden

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:

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