Brian Jesse
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brianjesse.com
Brian Jesse
@brianjesse.com
1.4K followers 980 following 70 posts
Founder of Grey Matter Games
(Ex - Epic Games, Psyonix, Wolfram|Alpha)

#rustlang
#bevyengine
#selfhosted
#gamedev
#indiedev
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brianjesse.com
Animations are now working for the spawn platform in Computronium!

#indiegame #indedev #gamedev #indiegamedev 🎮
March 24, 2025 at 4:15 PM
brianjesse.com
Spawn platform progress!

#gamedev #indiedev #indiegame #indiegamedev 🎮
A screenshot of an in-progress spawn platform that looks like a rocket capsule suspended over four legs. It has two large windows and some charring from reentry on the windows.
March 19, 2025 at 7:11 PM
brianjesse.com
An early look at the spawn platform, I'm going to be working on getting the animations hooked up next!

#indiedev #gamedev #indiegamedev #indiegame 🎮
In-game screenshot of a spawn platform that looks like a rocket capsule suspended on legs. It has large windows on each side.
March 18, 2025 at 7:23 PM
brianjesse.com
Walls, foundations, racks, and servers all together now.

#gamedev #indiedev #indiegamedev #indiegame 🎮
An in-game screenshot of a long row of servers on racks stretching into the distance.
March 13, 2025 at 8:24 PM
brianjesse.com
A sneak peek at the in progress walls in our game Computronium. It's starting to look like a real space!

#gamedev #indiedev #indiegame #indiegamedev 🎮
An in game screenshot of the interior of a player created space with foundations and walls.
March 12, 2025 at 10:23 PM
brianjesse.com
And now servers can be placed and removed from rack slots with full replication!

#gamedev #indiedev #indiegamedev #indiegame
March 11, 2025 at 7:38 PM
brianjesse.com
Some progress getting servers to slot into racks. It's all coming together!

#indiedev
#gamedev
#3dmodelling
#indiegame
#indiegamedev
An in game render of a server rack with servers on shelves. The rack is made of wood and the servers have wooden chassis.
March 10, 2025 at 6:16 PM
brianjesse.com
Here's the mark 1 server chassis for Computronium. This also has a used and DIY quality to it. We were inspired by 70s era HiFi equipment and the Atari.

#gamedev
#indiedev
#3dmodelling
A 3d model of a rackmount server that has a wooden chassis and a used "hand me down" look.
March 9, 2025 at 8:14 PM
brianjesse.com
Just added camera collision to Computronium! It's a really simple, but robust solution. The clipping at extreme angles still needs some work, but I didn't like the jittering in corners when I used a normal offset.

Join our Discord to be part of our first networked playtest! discord.gg/c2fXaTUK7h
March 8, 2025 at 3:43 PM
brianjesse.com
Here's the Mark 1 server rack for Computronium. It's a very ”hacked together" aesthetic that I hope a lot of self hosting enthusiasts might enjoy.

#gamedev
#indiedev
A 3d model of a server rack that has wooden planks in place of shelves.
March 5, 2025 at 9:52 PM
brianjesse.com
Grey Matter Games is working on our first title, Computronium - an automation game like Factorio or Satisfactory with an emphasis on computer hardware and networks.

Build data centers, manufacture integrated circuits, and deal with threats to your network.

Join our Discord: discord.gg/c2fXaTUK7h
The Computronium logo, in a stylized retro future text over a colorful chromatic depiction of a silicon wafer. The logo is over an image of a row of empty server racks on a tiled floor beneath a starry sky.
March 4, 2025 at 1:34 PM
brianjesse.com
December 31, 2024 at 1:39 PM
brianjesse.com
These are our goofballs.
Goofy cats A cat resting on a chair
December 20, 2024 at 6:19 PM
brianjesse.com
The `matches!` macro in #rustlang gives you full pattern matching capabilities without having to write a single case match statement! You can even provide an optional guard condition!
if !matches!(server_state.get(), ServerStates::Disconnected) { return; }
December 19, 2024 at 10:46 AM
brianjesse.com
I recently learned that you can use the debug print syntax in #rustlang template strings while keeping variable references inline instead of as subsequent arguments!
info!("Spawn third person camera for {:?} on frame: {:?}", client_id, frame); // eqivalent info!("Spawn third person camera for {client_id:?} on frame: {frame:?}");
December 18, 2024 at 2:54 PM
brianjesse.com
The `run_if` run condition in #bevyengine does not short-circuit if previous conditions do not pass. If you want to avoid checking future conditions, use the `and_then` condition to chain multiple together.

#gamedev
#rustlang
app.add_systems(FixedUpdate, enter_gameplay_system .run_if(in_state(LauncherStates::Connecting) .and_then(any_with_component::<PlayerComponent>) .and_then(any_with_component::<AvatarComponent>) .and_then(any_with_component::<ThirdPersonCameraComponent>) ) );
December 11, 2024 at 3:34 PM
brianjesse.com
The `cfg_attr` attribute in #rustlang can take additional arguments that will all be applied if the first argument passes.
// both of these separately: #![cfg_attr(debug_assertions, feature(core_intrinsics))] #![cfg_attr(debug_assertions, allow(internal_features))] // is the same as: #![cfg_attr( debug_assertions, feature(core_intrinsics), allow(internal_features), )]
December 5, 2024 at 7:05 PM
brianjesse.com
If you change settings on Startpage you can save them as a bookmarklet or as a parameter in a custom search engine that you add to your browser, and then you don't need cookies on the site at all!
Screenshot of saving startpage.com's settings without a cookie.
December 4, 2024 at 1:44 PM
brianjesse.com
If you have singleton data that's only used by a single system in the #bevyengine you don't always have to create a new struct and resource. You can use a Local which will persist between system invocations. This can be really handy for debounce timers!

#gamedev
#rustlang
pub fn window_fullscreen_system( time: Res<Time>, mut windows: Query<&mut Window>, mut action_event_reader: EventReader<FullscreenAction>, mut debounce_local: Local<Timer>, ) { let Ok(mut window) = windows.get_single_mut() else { error!("{} more than one window present", line!()); return; }; if !debounce_local.finished() { debounce_local.tick(time.delta()); return; } if action_event_reader.is_empty() { return; } action_event_reader.clear(); debounce_local.reset(); debounce_local.set_mode(TimerMode::Once); debounce_local.set_duration(Duration::from_secs(DEBOUNCE_TIME_SECONDS)); if window.mode == WindowMode::Windowed { window.mode = WindowMode::BorderlessFullscreen; return; } window.mode = WindowMode::Windowed; }
December 4, 2024 at 10:23 AM
brianjesse.com
Hi, can I be added please? We're working on a multiplayer automation game!
A screenshot of an early prototype of an automation game
December 4, 2024 at 9:38 AM
brianjesse.com
The guard pattern can be achieved really easily and cleanly in #rustlang using the let-else syntax. If you're trying to be a never-nester it definitely beats a bunch of if-lets.
let Ok(player) = player_query.get_single() else { fail!("Unable to get a single controlled player"); return; };
December 3, 2024 at 3:56 PM
brianjesse.com
Skip the splash screen with literally any input.
#bevyengine
December 2, 2024 at 12:32 PM