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by fluffybucktsnek 63 days ago
> It's like a tiny database.

No it isn't. It also handles system management and concurrency, basically the main loop of your application.

I also would be cautious of assigning the blame of the binary size onto the data structure on its own.
2 comments
alfiedotwtf 63 days ago
I would say yes it’s like a tiny database but as well as all the other things your added. And I think that’s a good thing, because it does this at the type level!

I’m actually seeing if I can build a parser using bevy_ecs just because the way their state machine works, it looks like it would be fun

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CyberDildonics 63 days ago
system management

What does that mean?

concurrency

Some data structures and databases deal with concurrency.

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nkrisc 63 days ago
In this case systems are the S of ECS and contain all your game logic, acting upon the entities and components (E and C).

By system management I assume they mean the APIs bevy offers for scheduling and sequencing systems and events so your game logic remains modularized while still running in the correct order.

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CyberDildonics 63 days ago
It seems like you're calling an entire game engine "ECS". I'm not sure what the point is here, the whole question was what justifies having a 50 MB hello world binary. It doesn't matter what you put into a data structure, the data structure itself shouldn't make 50 MB binaries.
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fluffybucktsnek 63 days ago
No, they aren't calling the entire game engine "ECS". Entity-Component-System is an architecture that Bevy is structured around.

As I have previously stated, I wouldn't blame the data structures used behind Bevy just yet, given Rust's tendency for making bloated binaries. What is taking the most space in this 50MB binary? How does it scale with the complexity of the application?

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CyberDildonics 62 days ago
Even if you can put a function pointer into a data structure, that's still just a data structure.
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fluffybucktsnek 62 days ago
I don't know where you are trying to go with this logic. You still haven't assured that the 50MB is actually related to data structures used behind by bevy, lest you are insunating that the data structures used by bevy are solely responsible for that size, which is not what the post claims.
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fluffybucktsnek 63 days ago
Exactly this.
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