From 1a5a48d3035af0e651b5c7c32404bba3f7044d6a Mon Sep 17 00:00:00 2001
From: Quaternions <krakow20@gmail.com>
Date: Fri, 13 Sep 2024 13:22:00 -0700
Subject: [PATCH] dedicated affine type means less math

---
 src/integer.rs | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/src/integer.rs b/src/integer.rs
index 3463ce6..52017ea 100644
--- a/src/integer.rs
+++ b/src/integer.rs
@@ -440,9 +440,9 @@ impl TryFrom<[f32;3]> for Unit32Vec3{
 pub type Planar64=fixed_wide::types::I32F32;
 pub type Planar64Vec3=linear_ops::types::Vector3<Planar64>;
 pub type Planar64Mat3=linear_ops::types::Matrix3<Planar64>;
-pub type Planar64Affine3=linear_ops::types::Matrix4x3<Planar64>;
 pub mod vec3{
 	use super::*;
+	pub use linear_ops::types::Vector3;
 	pub const ZERO:Planar64Vec3=Planar64Vec3::new([Planar64::ZERO;3]);
 	pub const ZERO_2:linear_ops::types::Vector3<Fixed::<2,64>>=linear_ops::types::Vector3::new([Fixed::<2,64>::ZERO;3]);
 	pub const X:Planar64Vec3=Planar64Vec3::new([Planar64::ONE,Planar64::ZERO,Planar64::ZERO]);
@@ -464,6 +464,7 @@ pub fn int(value:i32)->Planar64{
 }
 pub mod mat3{
 	use super::*;
+	pub use linear_ops::types::Matrix3;
 	pub fn from_diagonal(diag:Planar64Vec3)->Planar64Mat3{
 		Planar64Mat3::new([
 			[diag.x,Planar64::ZERO,Planar64::ZERO],
@@ -479,6 +480,22 @@ pub mod mat3{
 	}
 }
 
+#[derive(Clone,Copy,Default,Hash,Eq,PartialEq)]
+pub struct Planar64Affine3{
+	pub matrix3:Planar64Mat3,//includes scale above 1
+	pub translation:Planar64Vec3,
+}
+impl Planar64Affine3{
+	#[inline]
+	pub const fn new(matrix3:Planar64Mat3,translation:Planar64Vec3)->Self{
+		Self{matrix3,translation}
+	}
+	#[inline]
+	pub fn transform_point3(&self,point:Planar64Vec3)->vec3::Vector3<Fixed<2,64>>{
+		self.translation.fix_2()+self.matrix3*point
+	}
+}
+
 #[test]
 fn test_sqrt(){
 	let r=int(400);