1 files changed, 95 insertions, 0 deletions
diff --git a/pixel-client/tools/src/bin/tex_pack.rs b/pixel-client/tools/src/bin/tex_pack.rs
new file mode 100644
index 00000000..5022d561
--- /dev/null
+++ b/pixel-client/tools/src/bin/tex_pack.rs
@@ -0,0 +1,95 @@
+/*
+    Hurry Curry! - a game about cooking
+    Copyright 2024 metamuffin
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, version 3 of the License only.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+*/
+use clap::Parser;
+use std::{
+    fs::File,
+    io::{BufRead, BufReader, BufWriter, Write},
+    path::PathBuf,
+};
+
+#[derive(Parser)]
+struct Args {
+    atlas_out: PathBuf,
+    atlas_meta_out: PathBuf,
+    inputs: Vec<PathBuf>,
+}
+
+fn main() {
+    let Args {
+        inputs,
+        atlas_meta_out,
+        atlas_out,
+    } = Args::parse();
+
+    let atlas_size = 1024;
+
+    let mut cursor_x = 0;
+    let mut cursor_y = 0;
+    let mut row_height = 0;
+
+    let mut texels = vec![vec![' '; atlas_size]; atlas_size];
+    let mut metadata = Vec::new();
+
+    println!("  savepack {atlas_out:?}");
+    for path in inputs {
+        let file = BufReader::new(File::open(&path).unwrap());
+        let tex = file.lines().map(Result::unwrap).collect::<Vec<String>>();
+        let name = path.file_stem().unwrap().to_str().unwrap().to_string();
+        let (width, height) = (tex[0].chars().count(), tex.len());
+
+        println!("    + {width}x{height} {name}");
+
+        if cursor_x + width > atlas_size {
+            cursor_y += row_height;
+            row_height = 0;
+            cursor_x = 0;
+        }
+        if cursor_y + height > atlas_size {
+            panic!("texture too big or atlas full");
+        }
+        row_height = row_height.max(height);
+        let texcoord = [cursor_x, cursor_y, width, height];
+
+        for (y, line) in tex.iter().enumerate() {
+            if line.is_empty() {
+                continue;
+            }
+            for (x, char) in line.chars().enumerate() {
+                texels[cursor_y + y][cursor_x + x] = char;
+            }
+        }
+
+        metadata.push((texcoord, name));
+
+        cursor_x += width;
+    }
+
+    let mut atlas_out = BufWriter::new(File::create(atlas_out).unwrap());
+    let mut atlas_meta_out = BufWriter::new(File::create(atlas_meta_out).unwrap());
+
+    for line in texels {
+        for char in line {
+            write!(atlas_out, "{char}").unwrap()
+        }
+        writeln!(atlas_out).unwrap();
+    }
+
+    for ([x, y, w, h], name) in metadata {
+        writeln!(atlas_meta_out, "{x},{y},{w},{h},{name}").unwrap();
+    }
+}