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#![feature(array_chunks)]
use glam::Vec3;
use std::{
env::args,
fs::{File, create_dir_all},
io::{BufReader, BufWriter, Write},
};
use unity_tools::{
assetbundle::AssetBundle,
classes::mesh::{Mesh, VertexDataChannel},
};
fn main() -> anyhow::Result<()> {
env_logger::init_from_env("LOG");
let file = BufReader::new(File::open(args().nth(1).unwrap()).unwrap());
let mut bundle = AssetBundle::open(file)?;
let mut i = 0;
create_dir_all("/tmp/a").unwrap();
for ob in bundle.all_toplevel_of_class("Mesh").collect::<Vec<_>>() {
let mesh = ob.load(&mut bundle)?.parse::<Mesh>()?;
let mut obj = BufWriter::new(File::create(format!(
"/tmp/a/{}_{i}.obj",
mesh.name.replace("/", "-").replace(".", "-")
))?);
let positions = mesh
.vertex_data
.read_channel_vec::<Vec3>(VertexDataChannel::Position)?
.unwrap();
for Vec3 { x, y, z } in positions {
writeln!(obj, "v {x} {y} {z}")?;
}
for [a, b, c] in mesh.read_indecies() {
writeln!(obj, "f {} {} {}", a + 1, b + 1, c + 1)?;
}
i += 1;
}
Ok(())
}
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