Added basic plane struct

src/object/plane.rs

@@ -0,0 +1,38 @@
+extern crate nalgebra as na;
+
+use na::*;
+use na::geometry::Point3;
+
+use crate::types::*;
+
+pub struct Plane {
+    pub center: Point3<f32>,
+    pub normal: Unit<Vector3<f32>>,
+
+    pub texture: Box<dyn Fn(f32, f32) -> Color>
+}
+
+impl Plane {
+    pub fn new<F: 'static>(center: Point3<f32>, normal: Vector3<f32>, texture: F) -> Self
+        where F: Fn(f32, f32) -> Color
+    {
+        Plane {
+            center: center,
+            normal: Unit::new_normalize(normal),
+            texture: Box::new(texture)
+        }
+    }
+
+    pub fn new_solid(center: Point3<f32>, normal: Vector3<f32>, color: Color) -> Self
+        { Plane::new(center, normal, move |_, _| color) }
+
+    pub fn intersect(&self, ray: Ray) -> Option<f32> {
+        unimplemented!()
+    }
+
+    pub fn getcolor(&self, point: Point3<f32>) -> Color {
+        unimplemented!()
+    }
+
+    pub fn normal(&self, point: Point3<f32>) -> Unit<Vector3<f32>> { self.normal }
+}