1 files changed, 30 insertions, 4 deletions
diff --git a/evc/src/format/ser.rs b/evc/src/format/ser.rs
index 65d5e26..731a7a3 100644
--- a/evc/src/format/ser.rs
+++ b/evc/src/format/ser.rs
@@ -1,7 +1,7 @@
 use anyhow::Context;
 use std::io::{Read, Write};
 
-use crate::helpers::vector::Vec2;
+use crate::helpers::{matrix::Mat2, vector::Vec2};
 
 pub trait Sink {
     fn put<V: Ser>(&mut self, value: V) -> anyhow::Result<()>;
@@ -49,6 +49,24 @@ impl<A: Ser, B: Ser, C: Ser> Ser for (A, B, C) {
         Ok((A::read(source)?, B::read(source)?, C::read(source)?))
     }
 }
+impl<A: Ser, B: Ser, C: Ser, D: Ser> Ser for (A, B, C, D) {
+    fn write(&self, sink: &mut impl Write) -> anyhow::Result<()> {
+        self.0.write(sink).context("first tuple field")?;
+        self.1.write(sink).context("second tuple field")?;
+        self.2.write(sink).context("third tuple field")?;
+        self.3.write(sink).context("fourth tuple field")?;
+        Ok(())
+    }
+
+    fn read(source: &mut impl Read) -> anyhow::Result<Self> {
+        Ok((
+            A::read(source)?,
+            B::read(source)?,
+            C::read(source)?,
+            D::read(source)?,
+        ))
+    }
+}
 
 impl<A: Ser, const N: usize> Ser for [A; N] {
     fn write(&self, sink: &mut impl Write) -> anyhow::Result<()> {
@@ -192,8 +210,7 @@ impl Ser for f64 {
     }
 }
 
-
-impl Ser for Vec2<isize> {
+impl<T: Ser + Copy> Ser for Vec2<T> {
     fn write(&self, sink: &mut impl std::io::Write) -> anyhow::Result<()> {
         sink.put((self.x, self.y))
     }
@@ -203,6 +220,16 @@ impl Ser for Vec2<isize> {
         Ok(Vec2 { x, y })
     }
 }
+impl<T: Ser + Copy> Ser for Mat2<T> {
+    fn write(&self, sink: &mut impl std::io::Write) -> anyhow::Result<()> {
+        sink.put((self.a, self.b, self.c, self.d))
+    }
+
+    fn read(source: &mut impl std::io::Read) -> anyhow::Result<Self> {
+        let (a, b, c, d) = source.get()?;
+        Ok(Mat2 { a, b, c, d })
+    }
+}
 
 pub struct Small<T>(pub T);
 impl Ser for Small<Vec2<isize>> {
@@ -219,7 +246,6 @@ impl Ser for Small<Vec2<isize>> {
     }
 }
 
-
 #[cfg(test)]
 mod test {
     use super::{Ser, Sink};