greaewfdashgjryyter

use std::fs::File;
use std::io::{BufWriter, BufReader};
use byteorder::{LittleEndian, WriteBytesExt};

use obj::{load_obj, Obj};

fn main() {
    let input = BufReader::new(File::open("../dragon.obj").unwrap());
    let mesh: Obj<obj::Vertex, u32> = load_obj(input).unwrap();

    let mut output = BufWriter::new(File::create("../dragon.mesh").unwrap());

    output.write_u24::<LittleEndian>(0x55DABA).unwrap();
    output.write_u32::<LittleEndian>(mesh.vertices.len() as _).unwrap();
    for v in &mesh.vertices {
        output.write_f32::<LittleEndian>(v.position[0]).unwrap();
        output.write_f32::<LittleEndian>(v.position[1]).unwrap();
        output.write_f32::<LittleEndian>(v.position[2]).unwrap();
        output.write_f32::<LittleEndian>(v.normal[0]).unwrap();
        output.write_f32::<LittleEndian>(v.normal[1]).unwrap();
        output.write_f32::<LittleEndian>(v.normal[2]).unwrap();
    }

    output.write_u32::<LittleEndian>(mesh.indices.len() as _).unwrap();
    for i in &mesh.indices {
        output.write_u32::<LittleEndian>(*i).unwrap();
    }
}