mrg 0.1.0

Deserialize Gravity Defied **levels.mrg** files
Documentation 
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#![allow(clippy::indexing_slicing)]
use crate::Mrg;
use std::fs;

#[test]
fn check_tracks_count() {
    let file = get_mrg();
    assert_eq!(file.easy.tracks.len(), 10);
    assert_eq!(file.normal.tracks.len(), 10);
    assert_eq!(file.hard.tracks.len(), 10);
}

#[test]
fn check_track() {
    let track = &get_mrg().easy.tracks[0];
    assert_eq!(track.name, "Intro");
    assert_eq!(track.start.to_tuple(), (-56, 24));
    assert_eq!(track.finish.to_tuple(), (432, 0));

    let points = &track.points;
    assert_eq!(points[0].to_tuple(), (-380, 136));
    assert_eq!(points[points.len() - 1].to_tuple(), (798, 67));
}

fn get_mrg() -> Mrg {
    let bytes = fs::read("levels.mrg").unwrap();
    Mrg::from_bytes(&bytes).unwrap()
}