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|
use clap::Parser;
use std::{
collections::HashMap,
fs::File,
io::{BufWriter, Write},
path::PathBuf,
process::exit,
};
#[derive(Parser)]
struct Args {
input: PathBuf,
output: PathBuf,
}
fn main() {
let Args { input, output } = Args::parse();
let palette = include_str!("../../../textures/palette.csv")
.split('\n')
.filter(|l| !l.is_empty())
.map(|s| {
let (c, s) = s.split_once(",").unwrap();
let (r, s) = s.split_once(",").unwrap();
let (g, s) = s.split_once(",").unwrap();
let (b, a) = s.split_once(",").unwrap();
(
[
r.parse().unwrap(),
g.parse().unwrap(),
b.parse().unwrap(),
a.parse().unwrap(),
],
c.chars().next().unwrap(),
)
})
.collect::<HashMap<_, _>>();
let input = image::open(input).unwrap().to_rgba8();
let mut output = BufWriter::new(File::create(output).unwrap());
for y in 0..input.height() {
for x in 0..input.width() {
let mut c = input.get_pixel(x, y).0;
if c[3] == 0 {
c = [0, 0, 0, 0];
}
let Some(char) = palette.get(&c) else {
eprintln!("color at {x},{y} not in palette: {c:?}");
exit(1);
};
write!(output, "{char}").unwrap();
}
writeln!(output).unwrap();
}
output.flush().unwrap();
output.into_inner().unwrap().flush().unwrap()
}
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