Bevy

It’s a crate for server-authoritative networking. We use it for Project Harmonia, but it's general-purpose.

Probably one of the biggest releases. Here are some highlights:

• Authorization system. By default, we verify protocol compatibility between client and server by comparing hashes. You can add custom data to the hash (such as the game version) or fully customize the logic using RepliconSharedPlugin::auth_method.
• Static rules, such as Once or Periodic. Very fast to compute, useful for deterministic replication. We plan to add opt-in, more complex dynamic rules in the next release.
• New syntax for constructing replication rules. It extends the old one and allows specialization of individual components when declaring groups.
• Batched component insertion on replication. It's much faster, and all components are available in the user's observers.
• DisconnectRequest event to request a disconnect after sending messages. Useful for sending things such as disconnect reasons.

📜Full changelog 📦bevy_replicon

From @bushRAT's post in Discord:

One patch to LLVM, a compilation of rustc for a custom toolchain, and a lot of help from psx-sdk-rs, and I now have Bevy on the PlayStation One! Gamepad input fully integrated with bevy_input, double-buffered rendering, and logging piped to emulator debug logs. Might try and get 3D rendering going next!

It's an input manager for Bevy, inspired by Unreal Engine Enhanced Input. We use it for Project Harmonia, but it's general-purpose.

A relatively small release with several ergonomic improvements, such as using BevyError instead of panic-based APIs, along with some bug fixes.

📜Full changelog 📦bevy_enhanced_input

Hi!

I've been learning Bevy and LOVING IT, there's only one thing confusing me. Many components appear to be created magically even if not specified in the Bundle passed to commants.spawn.

For example, when I spawn just a Sprite component, the entity seems to automatically get a Transform component, even if I didn't give it one.

Similarly, this example spawns a Screenshot component, which apparently results in a Capturing component that can be queried later.

Are these "implicit" components documented somewhere? I took a short look at the TransformPlugin for example but I can't seem to figure out where these components come from.

Thanks y'all!

It’s a crate for server-authoritative networking. We use it for Project Harmonia, but it's general-purpose.

Highlights:

• Relationships networking. Use relationships to specify which entities should be replicated in a single message.
• Immutable components support. Replication is automatically applied via insertion for them.
• replicate_mapped now deprecated. Regular replicate now works for all components.
• Support for no_std and environments without atomic CAS, such as thumbv6m.

📜Full changelog 📦bevy_replicon

It's an input manager for Bevy, inspired by Unreal Engine Enhanced Input. We use it for Project Harmonia, but it's general-purpose.

This is a double release to make migrating to Bevy 0.16 easier for users:

• v0.10.0 targets Bevy 0.15. It replaces the confusing GamepadStick preset with the much more flexible Axial preset, and introduces Clamp modifier.
• v0.11.0 updates to Bevy 0.16 with no breaking changes. It adds support for no_std and per-context schedule configuration (useful for networking), which wasn't possible to implement in 0.15.

📜Full changelog 📦bevy_enhanced_input

It's an input manager for Bevy, inspired by Unreal Engine Enhanced Input. We use it for Project Harmonia, but it's general-purpose.

This release contains many changes, most notably the component-based API for contexts. We've also reworked the documentation, now including a quick-start guide that walks you through the API. We would appreciate your feedback 🙂

📜Full changelog 📦bevy_enhanced_input

I've been playing around with Bevy for a while and finally thought it worth sharing the progress I've made.

Konstruo is a standalone scenario based town building game giving you the freedom to build villages, towns, and cities with intuitive urban planning tools.

You'll need to overcome complex constraints to plan an optimal community for different sites.

Right now it only has the absolute basics of a prototype.

The README.md on GitHub has:

• GIF style videos of currently implemented features
• Links to download binaries for Linux and Windows or try the browser based live demo using WebAssembly

Progress so far is available under an AGPL license so features can be borrowed for your own games provided you also share your work under the AGPL license.

Once Konstruo reaches a significant milestone of development I'll split it into separate crates. My intention is for the libraries and tools (drawing, UI, etc) to be open source under AGPL but the modes and scenarios that make it a game will be proprietary.

After seeing how enthusiastic the modding community for Cities Skylines is I'm hoping by keeping it open that people will be keen to experiment with Bevy themselves and extend Konstruo with their own features or game modes.

For example I'm mostly interested in the design of communities but others may want to add simulation features to bring that community to life.

Not the author, but I found this nice article and wanted to share it 🙂

It's an input manager crate for Bevy, inspired by Unreal Engine Enhanced Input. We use it for Project Harmonia, but it’s general-purpose.

I love our trigger-based API, but the push-style API needed improvement. Previously, users had to read values from a resource - unergonomic and a bit confusing.

Now, contexts are components! This makes our push-style API similar to LWIM while keeping all the trigger-based ergonomics 🙂

See more details in the PR.

I recently received blessing from Alice (author of LWIM) to upstream this crate as a future Bevy input abstraction. But first, we need to polish the API - it's much easier to iterate on while in a separate crate.

It’s a crate for server-authoritative networking. We use it for Project Harmonia, but it's general-purpose.

A small release with improvements to the messaging backends API and ergonomics. I wanted to draft these changes before Bevy 0.16 to simplify the migration.

I also drafted a new RC release that supports Bevy 0.16 with no_std support! Nothing is feature-gated, the crate now completely no_std. Aeronet's author is working on bringing no_std support to aeronet, so you should be able to use it together with Replicon for some unusual platforms soon 🙂

📜Full changelog 📦bevy_replicon

It's a crate for dynamic and contextual input mappings for Bevy, inspired by Unreal Engine Enhanced Input. We use it for Project Harmonia, but it's general-purpose.

After some brainstorming with Alice (the author of LWIM), I replaced trait-based context creation with triggers. It was quite a significant refactor, but defining reloadable bindings in observers is so convenient.

There are also other minor ergonomic improvements and bugfixes. See the changelog for more details.

📜Full changelog 📦bevy_enhanced_input

It’s a crate for server-authoritative networking. We use it for Project Harmonia, but it's general-purpose.

Notable changes

• Connected clients are now represented as entities.
  • All related APIs are now component-based.
  • Entity is used to refer to a client everywhere, but ClientId is still present as a persistent identifier across reconnects.
  • Fast iteration and O(1) lookups.
  • Users can insert their own components or even replicate these entities.
  • Simplifies messaging backend integration.
• Switch from bincode to postcard.
  • Better varint serialization to save bandwidth.
  • Opens the door for no_std support after the 0.16 release.

I also rewrote the quick start guide. My recent talk at Bevy Meetup #9 helped me with this. It now contains much more information, including details on how to write a messaging backend or implement client-side prediction. I also tried to make it as user-friendly as possible. Feedback about it is highly appreciated!

📜Full changelog 📦bevy_replicon

A virtual meetup where we talk about Bevy :) This time I will be one of the speakers! Link to the blogpost with more details about the format.

Scheduled for March 6th 8 pm CET.

It’s a crate for server-authoritative networking. We use it for Project Harmonia, but it's general-purpose.

Kinda our 30th anniversary 😅 This release introduces remote triggers. The API is similar to our networked events. Here’s a quick showcase for client triggers:

app.add_client_trigger::<DummyEvent>(ChannelKind::Ordered)
    .add_observer(receive_events)
    .add_systems(Update, send_events.run_if(client_connected));

fn send_events(mut commands: Commands) {
    commands.client_trigger(DummyEvent);
}

fn receive_events(trigger: Trigger<FromClient<DummyEvent>>) {
    info!("received event {:?} from {:?}", trigger.event, trigger.client_id);
}

Server triggers have a similar API. Targeting entities is also supported.

We now also provide an example backend and examples that directly from the bevy_replicon repo. The examples have also been re-written to take advantage of the latest Bevy and Replicon features.

📜Full changelog 📦bevy_replicon

Refined the bindings menu for my game and ported it into a standalone example for bevy_enhanced_input.

Alice (the author of LWIM) and I quite like the main concepts of the crate, and we’re planning to refine it further to create the ultimate input manager 🙂

Thanks to ongoing work on no_std, people continue to try running Bevy on unusual platforms.

Today, @Mathspy from Discord managed to run it on the Playdate:

For what it's worth, Bevy's app, ECS, math, state work on the playdate with no patches
And Bevy's time works with a minor patch https://github.com/bevyengine/bevy/pull/17577

For rendering they're making playdate render calls in PostUpdate: https://github.com/Mathspy/bevydate/blob/1b4f02adcde079cf9757fd3c7d20331c9ab04513/src/lib.rs#L429-L441

Spend last week working on remote triggers for bevy_replicon.

Tried many approaches and finally satisfied with the implementation and public API.

Client triggers example:

app.add_client_trigger::<DummyEvent>(ChannelKind::Ordered)
    .add_observer(receive_events)
    .add_systems(Update, send_events.run_if(client_connected));

fn send_events(mut commands: Commands) {
    commands.client_trigger(DummyEvent);
}

fn receive_events(trigger: Trigger<FromClient<DummyEvent>>) {
    let FromClient { client_id, event } = trigger.event();
    info!("received event {event:?} from {client_id:?}");
}

Server triggers example:

app.add_server_trigger::<DummyEvent>(ChannelKind::Ordered)
    .add_observer(receive_events)
    .add_systems(Update, send_events.run_if(server_running));

fn send_events(mut commands: Commands) {
    commands.server_trigger(ToClients {
        mode: SendMode::Broadcast,
        event: DummyEvent,
    });
}

fn receive_events(trigger: Trigger<DummyEvent>) {
    info!("received event {:?} from server", trigger.event());
}

Observers are so nice, I use them in my game a lot and not having them networked was quite limiting.

After a review from second maintainer I will merge it and draft a new release 🙂

Post from @bushRAT in Discord:

Thanks to the ever growing support for no_std in Bevy, I'm now able to use Bevy on the GameBoy Advance! Using the current main branch (which will be included for 0.16!) you can use a crate like agb (and some boilerplate I'm hiding) to write GameBoy Advance games almost as easily as you would for any other Bevy platform. Systems, plugins, resources, queries, the gamepad input API, it all just works. See the attached ROM if you have a GameBoy Advance emulator handy, but I recommend the MGBA emulator as it can also show debug logs (yes, even all the logging just works)

Links to GBA files:

• From 1 GIF.
• From 2 GIF

If you have a real GBA or an FPGA console, the author will appreciate if you try :)

Repository: https://github.com/bushrat011899/bevy_agb_test

It's a crate for dynamic and contextual input mappings for Bevy, inspired by Unreal Engine Enhanced Input.

Actions now have a parameter that requires inputs to reset to zero before activation and continue consumption after context removal until they return to zero. This is very useful if you want to use the same input to toggle between contexts.

See the changelog for more details.

📜Full changelog 📦bevy_enhanced_input

It's a crate for dynamic and contextual input mappings for Bevy, inspired by Unreal Engine Enhanced Input.

It's a small release. I'm quite happy with the API, just wanted to make a few adjustments. Here are some highlights:

• Replace SmoothDelta modifier with SmoothNudge. It uses StableInterpolate::smooth_nudge, which properly interpolates inputs across frames.
• Remove InputContext::MODE. All contexts now work like InputContext::Exclusive (the default). If you want to share the same input across multiple entities, use a separate "controller" entity for a context and apply inputs to the desired entities. This approach is more efficient and explicit, so it's not worth having a special case in the crate for it.

See the changelog for more details.

📜Full changelog 📦bevy_enhanced_input

I'm developing a life simulation game with the working title Project Harmonia.

Over the last two weeks, I worked on walls. I needed precise placement for apartment building.

• Added angle and length visualization.
• Lengths and angles are now rounded (can be disabled by holding Alt).
• Added ordinal angle snapping (can be enabled by holding Shift).
• Simplified and optimized mesh generation.

I need a dashed gizmo style to make it look nicer. I opened an issue and it was implemented in less than 24 hours. Bevy development velocity is 🤯

I’m working on a life simulation game with the working title Project Harmonia.

Finished adding undo/redo functionality for all game actions. All logic is also networked using bevy_replicon 🙂

Next, I’m planning to work on house-building to create cities. I planning to implement apartment buildings first.

If you know any games where you can build apartments - let me know. Looking at prior art always helps!

When I migrated my game to bevy_enhanced_input, I added gamepad support. I figured it’d be fun to see if the game could run on a device like this.

It's a pocketable handheld with SD865 running Android and only 960p display. But making it work was surprisingly easy - just needed to tweak Cargo.toml and my main function.

However, there's a catch: GilRs, the input library Bevy uses, doesn’t support Android 😢 So, for now, I can only rely on touch controls, which I’ll properly support later.

Just wanted to tinker with it a little bit. Not very useful for the game at this stage, but since it's a hobby project, sometimes I just need to do something fun to stay motivated for bigger tasks.