Add ray types

src/cgmath/lib.rs

@@ -28,6 +28,8 @@ pub mod point;
 pub mod quaternion;
 pub mod vector;
 
+pub mod ray;
+
 pub mod projection;
 
 pub mod util {

src/cgmath/ray.rs

@@ -0,0 +1,45 @@
+// Copyright 2013 The CGMath Developers. For a full listing of the authors,
+// refer to the AUTHORS file at the top-level directionectory of this distribution.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use point::{Point2, Point3};
+use vector::{Vec2, Vec3};
+
+#[deriving(Clone, Eq)]
+pub struct Ray2<S> {
+    origin: Point2<S>,
+    direction: Vec2<S>,
+}
+
+impl<S> Ray2<S> {
+    /// Creates a new ray from a position coordinate and a direction vector
+    #[inline]
+    pub fn new(origin: Point2<S>, direction: Vec2<S>) -> Ray2<S> {
+        Ray2 { origin: origin, direction: direction }
+    }
+}
+
+#[deriving(Clone, Eq)]
+pub struct Ray3<S> {
+    origin: Point3<S>,
+    direction: Vec3<S>,
+}
+
+impl<S> Ray3<S> {
+    /// Creates a new ray from a position coordinate and a direction vector
+    #[inline]
+    pub fn new(origin: Point3<S>, direction: Vec3<S>) -> Ray3<S> {
+        Ray3 { origin: origin, direction: direction }
+    }
+}