caco 0.5.33

library for dealing with doom [et al] wad files
Documentation 
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use std::{env, fs::File};
use image::Pixel;

use caco::agnostic::{FlatClodMut, FormattableClumpMut};
use caco::wad::DoomWad;
use caco::fmts::d2::palette::Playpal;

fn main() {
    let args = env::args().skip(1).collect::<Vec<String>>();

    if args.len() != 2 {
        eprintln!("please provide an input wad and output wad\ncargo run --example invert_palettes in.wad out.wad");
        std::process::exit(1);
    }

    let mut in_wad_file = File::open(&args[0])
        .expect(&format!("couldn't open {}", &args[0]));

    let mut out_wad_file = File::create(&args[1])
        .expect(&format!("couldn't open {}", &args[1]));

    let mut wad = DoomWad::load(&mut in_wad_file).expect("input wad was invalid format");

    // invert all colors in all palettes in the PLAYPAL lump -
    if let Some(l) = wad.clump_by_name_mut("PLAYPAL") {
        if let Ok(mut p) = l.try_interpret_as::<Playpal>() {
            for t in &mut p.tints {
                for c in &mut t.colors { c.invert(); }
            }

            p.commit().expect("somehow the palette data became invalid (literally impossible...)");
        }
    }

    wad.save(&mut out_wad_file).expect("couldn't save wad out...");
}