Merge branch 'triangulation' into polygon-rooms

1 files changed, 12 insertions, 2 deletions

diff --git a/src/math/mod.rs b/src/math/mod.rs
index 0b591d7..6f83c98 100644
--- a/src/math/mod.rs
+++ b/src/math/mod.rs
@@ -1,17 +1,27 @@
 pub mod line_segment;
 pub mod polygon;
-pub mod polygon_graph;
 pub mod rect;
+pub mod triangle;
 pub mod vec2;
 
 pub use self::line_segment::*;
 pub use self::polygon::*;
-pub use self::polygon_graph::*;
 pub use self::rect::*;
+pub use self::triangle::*;
 pub use self::vec2::*;
 
+use nalgebra::Scalar;
 use std::cmp::Ordering;
 
+/// Trait that describes an area in the vector space on the field of T
+pub trait Surface<T: Scalar + Copy> {
+    /// Checks if a point lies on this surface.
+    fn contains_point(&self, point: &Vec2<T>) -> bool;
+
+    /// Checks if a line segment is entirely contained by this surface.
+    fn contains_line_segment(&self, line_segment: &LineSegment<T>) -> bool;
+}
+
 /// Round a floating point number to the nearest step given by the step argument. For instance, if
 /// the step is 0.5, then all numbers from 0.0 to 0.24999... will be 0., while all numbers from
 /// 0.25 to 0.74999... will be 0.5 and so on.