1 files changed, 0 insertions, 169 deletions
diff --git a/src/math/polygon.rs b/src/math/polygon.rs
deleted file mode 100644
index 5711049..0000000
--- a/src/math/polygon.rs
+++ /dev/null
@@ -1,169 +0,0 @@
-use super::{PolygonGraph, Vec2};
-use nalgebra::{ClosedDiv, ClosedMul, ClosedSub, RealField, Scalar};
-use num_traits::Zero;
-use std::ops::Neg;
-
-#[derive(Debug)]
-// TODO: Support polygons with holes
-pub struct Polygon<T: Scalar + Copy> {
-    pub corners: Vec<Vec2<T>>,
-}
-
-impl<T: Scalar + Copy> Polygon<T> {
-    pub fn new(corners: Vec<Vec2<T>>) -> Self {
-        Self { corners }
-    }
-
-    /// Check whether a point is inside a polygon or not. If a point lies on an edge, it also
-    /// counts as inside the polygon.
-    pub fn contains_point(&self, p: Vec2<T>) -> bool
-    where
-        T: Zero + ClosedSub + ClosedMul + ClosedDiv + Neg<Output = T> + PartialOrd,
-    {
-        let n = self.corners.len();
-
-        let a = self.corners[n - 1];
-        let mut b = self.corners[n - 2];
-        let mut ax;
-        let mut ay = a.y - p.y;
-        let mut bx = b.x - p.x;
-        let mut by = b.y - p.y;
-
-        let mut lup = by > ay;
-        for i in 0..n {
-            // ax = bx;
-            ay = by;
-            b = self.corners[i];
-            bx = b.x - p.x;
-            by = b.y - p.y;
-
-            if ay == by {
-                continue;
-            }
-            lup = by > ay;
-        }
-
-        let mut depth = 0;
-        for i in 0..n {
-            ax = bx;
-            ay = by;
-            let b = &self.corners[i];
-            bx = b.x - p.x;
-            by = b.y - p.y;
-
-            if ay < T::zero() && by < T::zero() {
-                // both "up" or both "down"
-                continue;
-            }
-            if ay > T::zero() && by > T::zero() {
-                // both "up" or both "down"
-                continue;
-            }
-            if ax < T::zero() && bx < T::zero() {
-                // both points on the left
-                continue;
-            }
-
-            if ay == by && (if ax < bx { ax } else { bx }) <= T::zero() {
-                return true;
-            }
-            if ay == by {
-                continue;
-            }
-
-            let lx = ax + (((bx - ax) * -ay) / (by - ay));
-            if lx == T::zero() {
-                // point on edge
-                return true;
-            }
-            if lx > T::zero() {
-                depth += 1;
-            }
-            if ay == T::zero() && lup && by > ay {
-                // hit vertex, both up
-                depth -= 1;
-            }
-            if ay == T::zero() && !lup && by < ay {
-                // hit vertex, both down
-                depth -= 1;
-            }
-
-            lup = by > ay;
-        }
-
-        (depth & 1) == 1
-    }
-
-    /// Join this polygon with another, ensuring the area of the two stays the same, but the
-    /// overlap is not doubled, but instead joined into one.
-    /// Returns the Polygons themselves, if there is no overlap
-    pub fn unite(self, other: Polygon<T>) -> Vec<Polygon<T>>
-    where
-        T: RealField,
-    {
-        let mut graph = PolygonGraph::from_polygon(&self);
-        graph.add_all(&other);
-
-        // TODO: Make bounding box support multiple polygons
-        vec![graph.bounding_polygon()]
-    }
-}
-
-#[cfg(test)]
-mod test {
-    use super::*;
-
-    #[test]
-    fn polygon_contains() {
-        let polygon = Polygon::new(vec![
-            Vec2::new(0., 0.),
-            Vec2::new(-1., 1.),
-            Vec2::new(0., 2.),
-            Vec2::new(1., 3.),
-            Vec2::new(3., 1.5),
-            Vec2::new(2., 0.),
-            Vec2::new(1., 1.),
-        ]);
-
-        assert!(!polygon.contains_point(Vec2::new(1., -2.)));
-        assert!(!polygon.contains_point(Vec2::new(-1., 0.5)));
-        assert!(polygon.contains_point(Vec2::new(0., 0.5)));
-        assert!(polygon.contains_point(Vec2::new(0.5, 1.)));
-        assert!(polygon.contains_point(Vec2::new(0.5, 1.5)));
-        assert!(!polygon.contains_point(Vec2::new(-2., 1.9)));
-        assert!(!polygon.contains_point(Vec2::new(0., 3.)));
-        assert!(polygon.contains_point(Vec2::new(1., 3.)));
-    }
-
-    #[test]
-    fn polygon_union() {
-        let first = Polygon::new(vec![
-            Vec2::new(-2., 1.),
-            Vec2::new(-0.5, 2.5),
-            Vec2::new(2., 2.),
-            Vec2::new(0.5, 1.5),
-            Vec2::new(1., 0.),
-            Vec2::new(-0.5, 1.),
-        ]);
-
-        let second = Polygon::new(vec![
-            Vec2::new(0., 0.),
-            Vec2::new(-2., 2.),
-            Vec2::new(3., 2.),
-            Vec2::new(1.5, 0.),
-        ]);
-
-        let union = first.unite(second);
-        assert_eq!(union.len(), 1);
-        let union = &union[0];
-
-        println!("Union of the two polygons: {:?}", union);
-
-        assert_eq!(union.corners.len(), 11);
-        assert!(union
-            .corners
-            .iter()
-            .find(|&p| p.x == 0. && p.y == 0.)
-            .is_some());
-    }
-}