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WHAT I DID IN 2023 #

Sunday, December 31, 2023

It's time for my annual self review. In last year's review I said I didn't have
clear goals for 2023, and I would probably just do whatever was interesting. I
did a bunch of interesting things. Unlike last year, I didn't spend much time on
art or science. The first part of the year I was learning about drag & drop on
the web. Then I worked on map generation. and the last part of the year were
productive, but I felt kind of aimless in the middle.

Read more »

Labels: annual-review

– Amit – Sunday, December 31, 2023 – 0 comments


JOBS TABLE IMPLEMENTATION FOR R/ROGUELIKEDEV PROJECT #

Thursday, November 02, 2023

In the last post I mentioned that while working on my colony simulator game for
the r/roguelikedev summer event, I ran into a situation where my data structures
made me unhappy. I was implementing a job system, where a colonist would keep
track of what job they're doing, what items they're holding, and where they are
standing. It looked like this before I rewrote it:

Diagram: objects that point to each other
Read more »

Labels: programming , structure

– Amit – Thursday, November 02, 2023 – 2 comments


SUMMER R/ROGUELIKEDEV EVENT #

Sunday, October 15, 2023

Each summer the r/roguelikedev community has a summer event in which we all make
a simple roguelike, roughly following the Python libtcod roguelike tutorial.
Last year I tried to clone Dwarf Fortress in 40 hours. That was too ambitious.
But I did enjoy working on a "fortress mode" project more than an "adventure
mode" project, so I wanted to do something like that this year, but with a
smaller scope.

 * Event announcement
 * Event conclusion from the participants
 * Event summary from the organizers

Colony simulation game
Read more »

Labels: programming

– Amit – Sunday, October 15, 2023 – 0 comments


WRITING HTML BY HAND #

Tuesday, September 19, 2023

I write some of my pages using a markup language (emacs org-mode) and other
pages using xhtml, with a few extra x:* tags that get expanded out into html
later. I was curious, when I write html by hand, which tags do I use? I used
Python's elementtree to get the answer:

 3085 p
 2466 a
 2303 li
 1042 em
 1008 code
  876 span
  719 x:section
  517 br
  454 div
  446 strong
  424 h3
  410 figure
  359 ul
  358 script
  331 img
  323 pre
  262 td
  249 x:document
  228 x:footer
  219 g


A lot of what I write is explanations in <p> paragraphs and <ul> <li> lists. And
I try to include lots of <a> links to other supporting documents. I do try to
use the semantic <em> and <strong> instead of the visual <i> and <b>. These
results didn't surprise me much.

Here's the code (roughly):

    tag_counts = collections.Counter()
    for doc in documents:
        tree = etree.fromstring(doc.contents)
        for el in tree.iter():
            tag_counts[el.tag] += 1
    for (tag, count) in tag_counts.most_common(20):
        print(f"{count:5} {tag}")


Do you write HTML by hand? If so, what tags do you use most?

Update: [2023-09-20] Some people commented on HackerNews about how they write
their HTML, including some debate over closing tags, HTML vs XHTML, and markup
languages.

– Amit – Tuesday, September 19, 2023 – 3 comments


CHANGING A URL #

Tuesday, August 08, 2023

One of the things I highly value is stable URLs. When you link to my site, I
want that URL to work as long as my site is up. I don't want to lose all those
links lightly. But for ease of implementation, the URL structure matches the
file structure on my site, and I occasionally want to change the file structure.
So what should I do?

I make a 301 redirect from the old URL to the new URL.

There are links on forums, discord, stackoverflow, etc. that I can't expect
anyone to change. But I can keep those links working on my end by adding a
redirect. I have made 28 of these URL changes in 28 years, an average of once
year, and each one has a redirect to keep the old URLs working.

Read more »

Labels: infrastructure

– Amit – Tuesday, August 08, 2023 – 1 comment


EXPERIMENTS AND MOTIVATION #

Friday, July 28, 2023

I was encouraged back in March when I was able to port my tank control
experiments from Flash to HTML5. I had previously attempted to port my spaceship
control experiments from Flash to HTML5, but failed. Part of the problem was
that it wasn't a strict port; I wanted to use a different algorithm. But it
didn't work well.

Read more »

Labels: project

– Amit – Friday, July 28, 2023 – 2 comments


IMPROVING MAPGEN4'S BOUNDARIES, PART 3 #

Wednesday, April 26, 2023

In the last post I described how I investigated and fixed several bugs in
mapgen4's boundary points and rendering. I was a bit annoyed at myself because I
didn't initially follow great practices while debugging, so it took longer than
it should have. But I was also glad I found and fixed the bugs.

One reason I wanted to try a double boundary layer was that I thought it might
be neat to "fold" the edges downwards a bit, so that when you look at the map
from the side, it'd have some depth. So I tried it, and … it worked! And it was
so easy (after I fixed the earlier bugs). I then changed the underground color
and added a faint line at the fold:

Underground view
Read more »

Labels: graphics , mapgen4 , maps

– Amit – Wednesday, April 26, 2023 – 1 comment


IMPROVING MAPGEN4'S BOUNDARIES, PART 2 #

Tuesday, April 25, 2023

Last time I mentioned that I made some changes to my dual-mesh helper library. I
use it for my Delaunay/Voronoi map and art projects. Part of the motivation was
that I want to work on some new map projects, and wanted to fix some of the
issues with the library. I then realized I need to test out the changes in
mapgen4.

I made a list of mapgen4 bugs I wanted to fix. The main one I'm going to talk
about here is that the edges of the map are jagged. Why didn't anyone notice?
Because I set the default zoom level to be slightly zoomed in, so that you don't
see the edges!

Map edges are quite jagged
Read more »

Labels: geometry , mapgen4 , triangles , voronoi

– Amit – Tuesday, April 25, 2023 – 0 comments


IMPROVING MAPGEN4'S BOUNDARIES, PART 1 #

Monday, April 24, 2023

I've been wanting to refamiliarize myself with the mapgen4 code because I'd like
to do some new map projects and will want to reuse some of the code from my
existing projects.

The first thing I decided to work on was my dual-mesh library. I had originally
written it to be a generally useful wrapper around Delaunator. Since then, I
wrote the Delaunator Guide, which has all the same functions, but in a way that
you can adapt to your own needs. I also realized that by making this library
public, I was making it harder for my own needs. So version 3 of this library is
going to be primarily for my own needs.

Boundary points (blue) surrounding Poisson Disc points (red)
Read more »

Labels: geometry , mapgen4 , maps , triangles , voronoi

– Amit – Monday, April 24, 2023 – 0 comments


EXPLAINING THE HEXAGON LAYOUT CLASS #

Wednesday, April 19, 2023

On the Hexagon Implementation page I have a Layout class that controls how to
convert back and forth between hexagonal coordinates and screen coordinates. It
has parameters (size.x, size.y, origin) that aren't explained on the hexagon
concepts page. That's in part because they complicate the explanation and aren't
hexagon-specific. The size is a standard scale transform and the origin is a
standard translate transform. Although I have some explanation on the
implementation page, it's not very good. I made some improvements:

Read more »

Labels: design , hexagons

– Amit – Wednesday, April 19, 2023 – 2 comments
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