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
1106282299Måns Grebäck2018-10-17Sweden
222722214Pizzadude - Jakob Fischer2018-10-17Denmark
34508014Johan Waldenström2018-10-17Sweden
43393877Mr.fisk Fonts - Mike Larsson2018-10-17Sweden
53285570Carl Krull2018-10-17Denmark
63220790Fontourist - Hans Gerhard Meier2018-10-17Norway
72708715Listemageren - Klaus Johansen2018-10-17Denmark
82611338Johan Aakerlund2018-10-17Denmark
92400887CheapProFonts - Roger S. Nelsson2018-10-17Norway
101644326HENRIavecunK2018-10-17Sweden
111258762Flight of the Dragon - Hasan Guven2018-10-17Norway
121060715Christian Munk2018-10-17Denmark
13712685Your Own Font - Ellinor Rapp2018-10-17Sweden
14590717bogstav2018-10-17Denmark
15585471Adam Ericsson2018-10-17Sweden
16551217Vinterstille TypeFaceLab - Klaus Nielsen2018-10-17Denmark
17484430Viktor Hammarberg2018-10-17Sweden
18441682Moonbase Press - Svein Kåre Gunnarson2018-10-17Norway
19406098Espen Morten Kvalheim2018-10-17Norway
20350485Staffan Vilcans2018-10-17Sweden
21333448Thor Christopher Arisland2018-10-17Norway
22323843Martin Holm2018-10-17Norway
23314658Jonas Borneland Hansen2018-10-17Denmark
24233646Norwegian Ink / Design for Dough - Frode Nordbø2018-10-17Norway
25205394David Engelby2018-10-17Denmark
26205362Anton - Anton Lundström2018-10-17Sweden
27198030dawnland - Daniel Viberg2018-10-17Sweden
28175873211178 Creative Agency - Morten Talleivsen2018-10-17Norway
29134089Martin Sørensen2018-10-17Denmark
3095220Andreas Larsen2018-10-17Denmark
3195086Bolahool Graphics2018-10-17Sweden
3293849McKack2018-10-17Norway
3392884Nils Kähler2018-10-17Denmark
3489702Joaquim Marquès Nielsen2018-10-17Denmark
3582645Anton Bohlin2018-10-17Sweden
3682541Pär Lundkvist2018-10-17Sweden
3775565Digital Flame Studios - sindre små2018-10-17Norway
3872796Intense2018-10-17Norway
3962986huskmelk - Rashid Akrim2018-10-17Norway
4060456Kyrre Honohan2018-10-17Norway
4154927Pia Hed Aspell2018-10-17Sweden
4253223Nadia Rosenfeldt2018-10-17Denmark
4351421Linn Mustanoja2018-10-17Sweden
4449184Lars Håhus2018-10-17Sweden
4543892ronjam - Ronja Melcker2018-10-17Sweden
4641144Atle Mo2018-10-17Norway
4736104Erik Jeddere-Fisher2018-10-17Norway
4833290charmingfan2018-10-17Denmark
4932472benjamin rauber2018-10-17Sweden
5031664Arman Ay2018-10-17Sweden
5126966Mark Lund2018-10-17Norway
5226062Botond Bokor2018-10-17Sweden
5325897Dan Thorup2018-10-17Denmark
5425875Andrew Nordquist2018-10-17Sweden
5525796Lisa2018-10-17Norway
5624532Aske Ching2018-10-17Denmark
5722367Carl Enlund2018-10-17Sweden
5821653Andreas2018-10-17Sweden
5920642Bull - Sandra Madsen2018-10-17Denmark
6020388Henrik Johansson2018-10-17Sweden
6120364Erik Holm2018-10-17Norway
6220302David Lindecrantz2018-10-17Sweden
6319832Kristian Dalen2018-10-17Norway
6419672Studio Indigo - Helena Öhman2018-10-17Sweden
6517068Mandy Pandy2018-10-17Sweden
6614653Christian Koch2018-10-17Denmark
6713087Alexander Rossebø2018-10-17Norway
6812580Johan Brodd2018-10-17Sweden
6911253Viktor Örneland2018-10-17Sweden
709610Mathias Alvebring2018-10-17Sweden
719443Boksen2018-10-17Norway
727715vardcentralen2018-10-17Sweden
737561Mathias Rue2018-10-17Denmark
746920Manuela Hardy2018-10-17Norway
756640Caesar2018-10-17Sweden
766632Gröt Havregrynsson2018-10-17Sweden
776580Sara Lindberg2018-10-17Sweden
786315Mattis Folkestad2018-10-17Norway
795578Oliver Waldemar2018-10-17Sweden
804980Simon Jakobsson2018-10-17Sweden
814260KingDGaming - Elias Eriksson2018-10-17Sweden

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:

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