From 4dce4f0b2c120d6ed96a4ac72230f2d1b94f26fd Mon Sep 17 00:00:00 2001
From: nanoqsh <nanoqsh@gmail.com>
Date: Tue, 1 Aug 2023 17:59:44 +0600
Subject: [PATCH] Atlas format

---
 atlas/src/atlas.rs |  2 ++
 im/src/lib.rs      | 10 ++++++++++
 staff/src/main.rs  |  3 ++-
 3 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/atlas/src/atlas.rs b/atlas/src/atlas.rs
index 9f53e7e..73791eb 100644
--- a/atlas/src/atlas.rs
+++ b/atlas/src/atlas.rs
@@ -47,6 +47,7 @@ fn decode_sprites(data: Vec<ImageData>, names: &HashMap<Name, Name>) -> Result<V
 }
 
 pub struct Atlas {
+    pub format: Format,
     pub png: Vec<u8>,
     pub map: Map,
 }
@@ -81,6 +82,7 @@ impl Atlas {
         }
 
         Ok(Self {
+            format,
             png: im::encode_png(&map)?,
             map: Map(sprites
                 .into_iter()
diff --git a/im/src/lib.rs b/im/src/lib.rs
index 02aae53..f23c5c0 100644
--- a/im/src/lib.rs
+++ b/im/src/lib.rs
@@ -17,6 +17,16 @@ pub enum Format {
     Rgba = 4,
 }
 
+impl fmt::Display for Format {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        match self {
+            Self::Gray => write!(f, "gray"),
+            Self::Rgb => write!(f, "rgb"),
+            Self::Rgba => write!(f, "rgba"),
+        }
+    }
+}
+
 impl From<Format> for ColorType {
     fn from(format: Format) -> Self {
         match format {
diff --git a/staff/src/main.rs b/staff/src/main.rs
index 3c0efa7..ab6288f 100644
--- a/staff/src/main.rs
+++ b/staff/src/main.rs
@@ -176,7 +176,7 @@ fn run(cli: Cli) -> Result<(), Error> {
         } => {
             let data = read_sprites(sprites)?;
             let names_path = names.unwrap_or_else(|| PathBuf::from("names.json"));
-            let Atlas { png, map } = atlas::make(
+            let Atlas { png, map, format } = atlas::make(
                 data,
                 &Parameters {
                     padding: Indent::new(xp, yp)?,
@@ -191,6 +191,7 @@ fn run(cli: Cli) -> Result<(), Error> {
                 },
             )?;
 
+            println!("the atlas packed with {format} format");
             let name = name.as_deref().unwrap_or("atlas");
             let outdir = make_outdir(outdir)?;
             write_png(&png, name, &outdir)?;