6 ms·

Bevy 0.2

253 points by _cart 6y ago

avolcano 6y ago
Something delightful about this update: it has a lot of new features, some very early, but all by different authors. Seems like such a community effort compared to most early-stage projects, which usually are driven by one author in relative secret until they are closer to some dream "1.0".
- lwansbrough 6y ago
  Big props to cart (and of course everyone contributing!) for putting a huge focus on community development after release. It can be challenging to set aside the fun work but it looks like it has paid off so far. The async task system and WASM work are particularly exciting community contributions -- Bevy is much closer to being a viable web-game engine now thanks to those.
- faitswulff 6y ago
  The BDFL of the project, cart, shows a lot of emotional intelligence in this Amethyst community post about Bevy: https://community.amethyst.rs/t/bevy-engine-addressing-the-elephant-in-the-room/1645 https://community.amethyst.rs/t/bevy-engine-addressing-the-e... I’m not surprised they have the ability to muster a community fairly quickly. Probably shared a lot of contributors with the Amethyst project.
  - dcre 6y ago
    Links on that page don’t quite work like you’d expect — your link goes to the post Carter is responding to (which is worth reading too). This one goes straight to his post. https://community.amethyst.rs/t/bevy-engine-addressing-the-elephant-in-the-room/1645/9 https://community.amethyst.rs/t/bevy-engine-addressing-the-e...
    - faitswulff 6y ago
      I specifically posted the entire thread for context, but thanks for the link to cart’s comment.
- giancarlostoro 6y ago
  Last this project was posted I joined the Discord and it seems to be a friendly space and a LOT of people joined and shared ideas. I think given a year or two this project (rightfully so!) will ressemble Godot (its an inspiration for Bevy). I am curious if they will adopt a scripting language similar to how Godot has GDScript. I think Godot was in the right in implementing their own language that fits their engine best.
  - littlestymaar 6y ago
    Cart explicitly rules out using scripting language and said writing games in the same language as the engine was one of the motivation for him to start a new engine. > Turtles All The Way Down: Ideally the engine is written in the same language that games are. Being able to run an IDE "go to definition" command on a symbol in your game and hop directly into the engine source is an extremely powerful concept. You also don't need to worry about heavy language translation layers or lossy abstractions. If an engine's community builds games in the same language as the engine, they are more likely (and able) to contribute back to the engine. https://bevyengine.org/news/introducing-bevy/ https://bevyengine.org/news/introducing-bevy/
    - suby 6y ago
      I'm thankful this is his attitude. I think part of the appeal of Bevy is that it is built in Rust, and you are meant to use Rust in building your project. I think it pushes the design to make working in Rust as optimal as possible.
    - giancarlostoro 6y ago
      I could see a Rust-like scripting language being adopted at some point, all it takes is someone building a proof of concept and before you know it, it winds up in the codebase because it's so polished. Which is another thing I love about Bevy, people are allowed to write their own projects and if they're good the Bevy team will take them into consideration (or that's the vibe I got being on the Discord) which is what makes Open Source so great. It's too early for them and them maintaining Rust is certainly a total strength at the very least.
echelon 6y ago
The Rust gamedev scene is really exciting! I wonder if we'll see a new entrant (commercial or not) with enough features to challenge the C++ game engine landscape. It'd be difficult to reach parity with Unreal, but perhaps something can get close to Godot. Do you think gaming companies will start to invest in the Rust ecosystem?
- adamnemecek 6y ago
  Some already are. Embark Studios and Ready at Dawn.
  - runevault 6y ago
    Facebook recently acquired RaD so I wonder if that is impacting their tech choices. I know FB does use SOME rust but still.
adamnemecek 6y ago
I know that rg3d was on the front page yesterday, but in case someone missed it, here's rg3d, another Rust engine https://github.com/mrDIMAS/rg3d https://github.com/mrDIMAS/rg3d
- justaguy88 6y ago
  As an outsider to game dev, what sort of aspects do people compare game engines by?
  - adamnemecek 6y ago
    Game enginity :-). But fundamentally same as everything else, features, platform support, maturity, API, performance etc.
  - gameswithgo 6y ago
    Man there are just millions of things * what platforms can the engine target (pc, mac, linux, consoles, web, mobile, etc * does it use a typical oop approach with all your stuff deriving from entity? or an ecs? the latter can perform better but is more complex to work with usually * how easy is it to use? does it have a graphic editor and asset manager? an easy scripting language? decent lighting system built in? * how well does it perform * how customizeable is it * can you edit things while the game is running for quick iteration?
- littlestymaar 6y ago
  They seem to share the same goals and philosophy, and it looks like the authors have complementary skills: mrDimas' technical achievements are super impressive (rg3d already has a scene editor, its own UI kit and a working example game!!), while _cart's ability to create hype and foster a large community in no time is just stunning. I'd love to see those two join efforts somehow.
  - adamnemecek 6y ago
    Idk if community skills really matter.
_cart 6y ago
Lead developer here. Feel free to ask me anything!
- brobinson 6y ago
  No question, but thanks for fixing the CPU usage issues. Only seeing 0.4% CPU usage on the breakout example in release mode now. (credit to the rayon developers as well)
  - _cart 6y ago
    I'm glad it worked for you! All credit goes to @lachlansneff and @aclysma. They really did a great job here :)
- macawfish 6y ago
  Will this allow for async systems?
  - wwright 6y ago
    Don’t systems normally want fairly tight bounds on when they execute and how long? (Genuine question)
    - _cart 6y ago
      We are considering async systems, but in general I do think that allowing them to suspend execution across frames would be undesirable (at least as a default).
      - wwright 6y ago
        What kind of use case would want to suspend within a frame?
        macawfish 6y ago
        Well, I know I just want to be able to poll futures from a system. There's a rust FRP library called futures-signals that would be really useful for taking input from a controller and transforming it into high level, meaningful streams. I'd like to react to those streams. I don't think they'd take multiple frames to poll, but even if they did I wouldn't mind too much. (I'm new to both rust and ECS so if you have a suggestion for how to approach this problem differently, I'd love to hear it)
bgdkbtv 6y ago
Can anyone share some examples of games built with Bevy? I'm not a game dev but curious to see what others have made with it
- Zee2 6y ago
  The article mentions one example that needs to use ASCII "rendering" because Bevy lacks 2D/3D rendering support. I'd imagine that not many projects have been built on top of Bevy yet, due to the WIP nature of the rendering. Nevertheless this looks like a really great project, as a fellow hobby game dev this is pretty exciting and might be a great way to get to know Rust from an outside perspective. Edit: Whoops, it looks like that might be just for the WASM support. My bad.
- gameswithgo 6y ago
  it is very new, there won't be anything but some proof of concept demos at this point.
- thallada 6y ago
  Bevy is very new so there isn't a whole lot yet. But, there's a list of projects built with bevy being assembled at https://github.com/bevyengine/awesome-bevy https://github.com/bevyengine/awesome-bevy You could also checkout the #showcase channel in the bevy discord https://discord.gg/gMUk5Ph https://discord.gg/gMUk5Ph
trwired 6y ago
I am really happy to see a reimplementation of Robbo as one of the examples! What a nice throwback. I used to love that game as a child on my Atari 800 XE. I should be asleep, but instead I am collecting screws. :)
dang 6y ago
Recent and related: https://news.ycombinator.com/item?id=24123283 https://news.ycombinator.com/item?id=24123283
ForLoveOfCats 6y ago
Wow the rate of improvement is impressive! I really need to sit down and play with this, it looks great.
- marvinvz 6y ago
  I found it extremely easy to get into and reason about the code. This is probably one of the reasons it got such good traction.
nixarn 6y ago
Look great. I really want an alternative to unity to do ECS 2d mobile games. It's not super complicated tech (although takes time to implement for sure in a game engine), but at the moment there's not really any alternatives, so any under development is awesome!

253 points by _cart 6y ago

Something delightful about this update: it has a lot of new features, some very early, but all by different authors. Seems like such a community effort compared to most early-stage projects, which usually are driven by one author in relative secret until they are closer to some dream "1.0".

lwansbrough 6y ago
Big props to cart (and of course everyone contributing!) for putting a huge focus on community development after release. It can be challenging to set aside the fun work but it looks like it has paid off so far. The async task system and WASM work are particularly exciting community contributions -- Bevy is much closer to being a viable web-game engine now thanks to those.
faitswulff 6y ago
The BDFL of the project, cart, shows a lot of emotional intelligence in this Amethyst community post about Bevy: https://community.amethyst.rs/t/bevy-engine-addressing-the-elephant-in-the-room/1645 https://community.amethyst.rs/t/bevy-engine-addressing-the-e... I’m not surprised they have the ability to muster a community fairly quickly. Probably shared a lot of contributors with the Amethyst project.
- dcre 6y ago
  Links on that page don’t quite work like you’d expect — your link goes to the post Carter is responding to (which is worth reading too). This one goes straight to his post. https://community.amethyst.rs/t/bevy-engine-addressing-the-elephant-in-the-room/1645/9 https://community.amethyst.rs/t/bevy-engine-addressing-the-e...
  - faitswulff 6y ago
    I specifically posted the entire thread for context, but thanks for the link to cart’s comment.
giancarlostoro 6y ago
Last this project was posted I joined the Discord and it seems to be a friendly space and a LOT of people joined and shared ideas. I think given a year or two this project (rightfully so!) will ressemble Godot (its an inspiration for Bevy). I am curious if they will adopt a scripting language similar to how Godot has GDScript. I think Godot was in the right in implementing their own language that fits their engine best.
- littlestymaar 6y ago
  Cart explicitly rules out using scripting language and said writing games in the same language as the engine was one of the motivation for him to start a new engine. > Turtles All The Way Down: Ideally the engine is written in the same language that games are. Being able to run an IDE "go to definition" command on a symbol in your game and hop directly into the engine source is an extremely powerful concept. You also don't need to worry about heavy language translation layers or lossy abstractions. If an engine's community builds games in the same language as the engine, they are more likely (and able) to contribute back to the engine. https://bevyengine.org/news/introducing-bevy/ https://bevyengine.org/news/introducing-bevy/
  - suby 6y ago
    I'm thankful this is his attitude. I think part of the appeal of Bevy is that it is built in Rust, and you are meant to use Rust in building your project. I think it pushes the design to make working in Rust as optimal as possible.
  - giancarlostoro 6y ago
    I could see a Rust-like scripting language being adopted at some point, all it takes is someone building a proof of concept and before you know it, it winds up in the codebase because it's so polished. Which is another thing I love about Bevy, people are allowed to write their own projects and if they're good the Bevy team will take them into consideration (or that's the vibe I got being on the Discord) which is what makes Open Source so great. It's too early for them and them maintaining Rust is certainly a total strength at the very least.

echelon 6y ago

The Rust gamedev scene is really exciting! I wonder if we'll see a new entrant (commercial or not) with enough features to challenge the C++ game engine landscape. It'd be difficult to reach parity with Unreal, but perhaps something can get close to Godot. Do you think gaming companies will start to invest in the Rust ecosystem?

adamnemecek 6y ago
Some already are. Embark Studios and Ready at Dawn.
- runevault 6y ago
  Facebook recently acquired RaD so I wonder if that is impacting their tech choices. I know FB does use SOME rust but still.

adamnemecek 6y ago

I know that rg3d was on the front page yesterday, but in case someone missed it, here's rg3d, another Rust engine https://github.com/mrDIMAS/rg3d https://github.com/mrDIMAS/rg3d

justaguy88 6y ago
As an outsider to game dev, what sort of aspects do people compare game engines by?
- adamnemecek 6y ago
  Game enginity :-). But fundamentally same as everything else, features, platform support, maturity, API, performance etc.
- gameswithgo 6y ago
  Man there are just millions of things * what platforms can the engine target (pc, mac, linux, consoles, web, mobile, etc * does it use a typical oop approach with all your stuff deriving from entity? or an ecs? the latter can perform better but is more complex to work with usually * how easy is it to use? does it have a graphic editor and asset manager? an easy scripting language? decent lighting system built in? * how well does it perform * how customizeable is it * can you edit things while the game is running for quick iteration?
littlestymaar 6y ago
They seem to share the same goals and philosophy, and it looks like the authors have complementary skills: mrDimas' technical achievements are super impressive (rg3d already has a scene editor, its own UI kit and a working example game!!), while _cart's ability to create hype and foster a large community in no time is just stunning. I'd love to see those two join efforts somehow.
- adamnemecek 6y ago
  Idk if community skills really matter.

_cart 6y ago

Lead developer here. Feel free to ask me anything!

brobinson 6y ago
No question, but thanks for fixing the CPU usage issues. Only seeing 0.4% CPU usage on the breakout example in release mode now. (credit to the rayon developers as well)
- _cart 6y ago
  I'm glad it worked for you! All credit goes to @lachlansneff and @aclysma. They really did a great job here :)
macawfish 6y ago
Will this allow for async systems?
- wwright 6y ago
  Don’t systems normally want fairly tight bounds on when they execute and how long? (Genuine question)
  - _cart 6y ago
    We are considering async systems, but in general I do think that allowing them to suspend execution across frames would be undesirable (at least as a default).
    - wwright 6y ago
      What kind of use case would want to suspend within a frame?
      - macawfish 6y ago
        Well, I know I just want to be able to poll futures from a system. There's a rust FRP library called futures-signals that would be really useful for taking input from a controller and transforming it into high level, meaningful streams. I'd like to react to those streams. I don't think they'd take multiple frames to poll, but even if they did I wouldn't mind too much. (I'm new to both rust and ECS so if you have a suggestion for how to approach this problem differently, I'd love to hear it)

bgdkbtv 6y ago

Can anyone share some examples of games built with Bevy? I'm not a game dev but curious to see what others have made with it

Zee2 6y ago
The article mentions one example that needs to use ASCII "rendering" because Bevy lacks 2D/3D rendering support. I'd imagine that not many projects have been built on top of Bevy yet, due to the WIP nature of the rendering. Nevertheless this looks like a really great project, as a fellow hobby game dev this is pretty exciting and might be a great way to get to know Rust from an outside perspective. Edit: Whoops, it looks like that might be just for the WASM support. My bad.
gameswithgo 6y ago
it is very new, there won't be anything but some proof of concept demos at this point.
thallada 6y ago
Bevy is very new so there isn't a whole lot yet. But, there's a list of projects built with bevy being assembled at https://github.com/bevyengine/awesome-bevy https://github.com/bevyengine/awesome-bevy You could also checkout the #showcase channel in the bevy discord https://discord.gg/gMUk5Ph https://discord.gg/gMUk5Ph

trwired 6y ago

I am really happy to see a reimplementation of Robbo as one of the examples! What a nice throwback. I used to love that game as a child on my Atari 800 XE. I should be asleep, but instead I am collecting screws. :)

dang 6y ago

Recent and related: https://news.ycombinator.com/item?id=24123283 https://news.ycombinator.com/item?id=24123283

ForLoveOfCats 6y ago

Wow the rate of improvement is impressive! I really need to sit down and play with this, it looks great.

marvinvz 6y ago
I found it extremely easy to get into and reason about the code. This is probably one of the reasons it got such good traction.

nixarn 6y ago

Look great. I really want an alternative to unity to do ECS 2d mobile games. It's not super complicated tech (although takes time to implement for sure in a game engine), but at the moment there's not really any alternatives, so any under development is awesome!