How to serialize

[ruby dragon]

Am I forced to use old versions of bincode to serialize to the table of bytes(Vec<u8>, &[u8] etc.)? Trying to use version 2.0.1 leads to the errors with types:

error[E0277]: the trait bound `bevy::prelude::Vec3: Encode` is not satisfied
 --> src\game\plugins\saving\help_structs.rs:4:10
  |
4 | #[derive(Encode)]
  |          ^^^^^^ the trait `Encode` is not implemented for `bevy::prelude::Vec3`

Or maybe, should I use something else in order to serialize Bevy's types and components to the table of bytes

[languid arch]

could try the bincode-serde compatibility wrapper thing

[manic granite]

I am using bincode 2 as well to serialize bevy structs and it works for me. however I use bincode's serde integration, not the direct encode/decode API. also I had to enable the serialize feature on bevy_math

[ruby dragon]

Can you explain bincode's serde integration? From what I see its not a crate.

I've also added this rn. Its ok, right?
bevy_math = { version = "0.17.2", features = ["serialize"] }

[manic granite]

Add serde and serde feature to bincode :

serde = { version = "1.0.221", features = ["derive"] }
bincode = { version = "2.0.1", features = ["serde"] }

then derive Serialize (not Encode) and then encode with the bincode::serde::encode_* methods

[ruby dragon]

Thanks. I think I got it working with my transitional struct. To got it working with native components like transform, I assume I should enable additional features, right?

#[derive(Serialize)]
pub struct BlockPosition {
    pub translation: Vec3,
    pub rotation: Quat
}

[manic granite]

sorry, I didn't try to serialize crates other than bevy_math, so I can't help you much from there, but a quick look at the Transform struct shown that you should enable the serialize feature on bevy_ecs

[ruby dragon]

np, ty for all the help

[ruby dragon]

One last question. How do you deserialize?

[manic granite]

well, exactly like that

[ruby dragon]

I don't see anything related to Vec<u8> in the deserialization

[manic granite]

you can do &vec[..] to get a slice

[ruby dragon]

That solves it, thanks

[languid arch]

Vec<T> impls Deref<[T]>, shouldn't even need the [..]