Hal9000

Hal9000

As you may know, I am slowly/painfully writing an Elixir book.

There is a code example that I’ve written in Ruby – a simple
robot-type “capture the flag” game. (Not a real game, just a
coding exercise.)

I’m about to port the Ruby code to Elixir. If anyone wants to
look/comment/help, please feel free. (Those who contribute
will be mentioned in the acknowledgements fwiw.)

This repo will be public for at least two days:

https://github.com/Hal9000/vexil

Thanks,
Hal

Showing Posts 1 to 10

minhajuddin

minhajuddin

  1. Put *.beam in your .gitignore
  2. defstruct team: nil, kind: nil, move: nil, see: nil, ... could be written as defstruct [:team, :kind, :move, :see...]
  3. Use tuples is more idiomatic elixir instead of fixed sized lists e.g. in def get(grid, [:red, x, y])
Hal9000

Hal9000 OP

Agreed and committed. Thank you!

Hl

johnkelly

johnkelly

I think you can refactor the show_cell function to remove the conditional and assignments.

   defmodule Grid do
      def show_cell(grid, xx, yy) do
        grid
        |> Grid.get({:red, xx, yy})
        |> Bot.to_string
        |> IO.write
      end
    end

defmodule Bot do
  def to_string(nil), do: "-"
end
Hal9000

Hal9000 OP

Also excellent ideas. Committed.

romul

romul

I think, defender, fighter, scout, flag and related behavior are good to demonstrate how to work with Elixir protocols.

Eiji

Eiji

Created first small PR. I will help you more today or/and in next days. This will depend on your response times and my free time :smile:

Hal9000

Hal9000 OP

That is a good idea. I don’t think I’ll introduce protocols here at first, but I
could always refer back to the code later and show changes.

Hal

Hal9000

Hal9000 OP

Merged. Appreciated. Just remember we may be in different time zones. :wink:

By the way The Ruby version is not “ideal” either. The non-threaded version is
easier to watch/understand, but the threaded one is a massive free-for-all, and I
am not sure how I want to fix it.

Hal

Eiji

Eiji

Yes I mean I will send PR if I find some time in same day you merged previous.
What does mean:

FIXME pieces[team] << bot

?
I do not see a pieces declaration in this file …
And this comment:

line 22

:smile:

Eiji

Eiji

Tip: here you have a tutorial about creating a command line application in Elixir.
I will create a next PR in current week (first version of this app that works from command line).

Where Next? Top

Trending in Discussions Top

budgie
A little off-topic, but I feel like people here have a good head on their shoulders. I used to be quite good at making software. Was luc...
New
juhalehtonen
There has been a thread to discuss the Stack Overflow Developer Survey on this forum every year since 2018, so here’s yet another one for...
New
axelson
Hi there! :wave: @frigidcode and I (but mostly him) have been running an Elixir Book club, we’re almost done with Designing Elixir Syste...
New
budgie
I love Elixir. It’s one of 2 programming languages I’ve ever fallen in love with. But I don’t use it anymore. Serverless was the promis...
New
jtormey
Lately I’ve been thinking about how to organize components as a LiveView application grows. One of the pain points I’ve found (for myself...
New
Null-logic-0
What IDE or editor are you using for Elixir development? Personally, I use Zed, and I really like it, but sometimes I wish there were a ...
New
type1fool
I just stumbled on a newly redesigned elixir-lang.org. :tada: It looks like @Software_Mansion did the work, and I think it is generally a...
New

Other Trending Topics Top

KristerV
Hey. Is there anyone here who creates agents in their apps? Not talking about using agents, but creating them. I’m finding it pretty diff...
New
mudasobwa
I fully migrated to my own harness from Anthropic/Gemini and I think it’s time to share it. Welcome DSH, the DeepSeek Harness, fully writ...
New
jimsynz
Beam Bots (or just BB for short) is a framework for building fault-tolerant robotics applications in Elixir using familiar OTP patterns. ...
New
ausimian
Emily is an Elixir library that runs Nx computations on Apple’s MLX. Install it as the default Nx backend and Nx, defn, Axon, Nx.Serving,...
New
kip
In 2021 I started a new library called Tempo with the objective of modelling time as a set of intervals - not as instants. In 2022 I gave...
New
OndrejValenta
(I just needed to vent somewhere and LinkedIn is full of hope, or hype, I’m not sure which exactly) AI dream has many faces, but general...
New

We're in Beta

About us Mission Statement

Options

Thread Display Mode




Thread Preview

Skip Thread Previews