From 70afc5a7d871919776a64782e8b93404e6b0defd Mon Sep 17 00:00:00 2001
From: eug-vs <eugene@eug-vs.xyz>
Date: Sun, 15 Dec 2024 13:17:43 +0100
Subject: feat!: add raylib rendering

---
 src/algebra/mod.rs      |  1 -
 src/algebra/subspace.rs | 69 -------------------------------------------------
 2 files changed, 70 deletions(-)
 delete mode 100644 src/algebra/mod.rs
 delete mode 100644 src/algebra/subspace.rs

(limited to 'src/algebra')

diff --git a/src/algebra/mod.rs b/src/algebra/mod.rs
deleted file mode 100644
index 13dcd6a..0000000
--- a/src/algebra/mod.rs
+++ /dev/null
@@ -1 +0,0 @@
-pub mod subspace;
diff --git a/src/algebra/subspace.rs b/src/algebra/subspace.rs
deleted file mode 100644
index 3b32ba7..0000000
--- a/src/algebra/subspace.rs
+++ /dev/null
@@ -1,69 +0,0 @@
-use nalgebra::SMatrix;
-
-use crate::{particle_system::Scalar, particle_system::N, Point, Vector};
-
-type ProjectionMatrix = SMatrix<Scalar, N, N>;
-
-pub struct Subspace<const DIM: usize> {
-    point: Point,
-    vectors: [Vector; DIM],
-    projection_matrix: ProjectionMatrix,
-}
-
-pub type Line = Subspace<1>;
-pub type Plane = Subspace<2>;
-
-impl<const DIM: usize> Subspace<DIM> {
-    pub fn new(point: Point, mut vectors: [Vector; DIM]) -> Self {
-        for vector in &mut vectors {
-            vector.normalize_mut();
-        }
-
-        Self {
-            point,
-            vectors,
-            projection_matrix: {
-                let v = SMatrix::<Scalar, N, DIM>::from_columns(&vectors);
-                let transpose = v.transpose();
-                let inverse = (transpose * v).try_inverse().unwrap();
-                v * inverse * transpose
-            }
-        }
-    }
-
-    pub fn project_point(&self, point: Point) -> Point {
-        self.projection_matrix * (point - self.point.coords) + self.point.coords
-    }
-
-    pub fn distance(&self, point: Point) -> Scalar {
-        let projected = self.project_point(point);
-        (projected - point).norm()
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use crate::{algebra::subspace::Line, Point, Vector};
-
-    #[test]
-    fn test_projection_onto_line() {
-        let line = Line::new(Point::new(1.0, 0.0), [Vector::new(3.0, 1.0)]);
-        let point = Point::new(3.0, 4.0);
-
-        let matrix = line.projection_matrix;
-        {
-            let diff = matrix * matrix - matrix;
-            assert!(diff.norm() < 0.001, "Projection matrix squared should be equal to itself: {}, {}", matrix, matrix* matrix);
-        }
-        {
-            let diff = matrix - matrix.transpose();
-            assert!(diff.norm() < 0.001, "Projection matrix transpose should be equal to itself: {}, {}", matrix, matrix.transpose());
-        }
-
-        {
-            let projected = line.project_point(point);
-            let diff = projected - Point::new(4.0, 1.0);
-            assert!(diff.norm() < 0.001, "Point projected incorrectly");
-        }
-    }
-}
-- 
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