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path: root/exporter/src/bin/scenetree.rs
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use std::{
    env::{args, var},
    fs::File,
    io::BufReader,
};
use unity_tools::{assetbundle::AssetBundle, classes::transform::Transform};

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, "samples")?;

    let draw_children = var("DRAW_CHILDREN").is_ok();
    println!("digraph {{");
    for ob in bundle.all_toplevel_of_class("Transform") {
        let i = ob.path_id;
        let tr = ob.load(&mut bundle)?.parse::<Transform>()?;

        let mut name = "(no gameobject)".to_string();
        if !tr.gameobject.is_null() {
            let go = tr.gameobject.load(&mut bundle)?;
            name = go.name;
        }
        println!("n{i} [label={name:?}];");

        if !tr.father.is_null() {
            assert_eq!(tr.father.file_id, 0);
            let j = tr.father.path_id;
            println!("n{j} -> n{i};")
        }
        if draw_children {
            for ch in tr.children {
                assert_eq!(ch.file_id, 0);
                let j = ch.path_id;
                println!("n{i} -> n{j} [color=red];")
            }
        }
    }
    println!("}}");

    Ok(())
}