init

1 files changed, 40 insertions, 0 deletions

diff --git a/src/hittable/hittable_box.rs b/src/hittable/hittable_box.rs
new file mode 100644
index 0000000..7b95cc7
--- /dev/null
+++ b/src/hittable/hittable_box.rs
@@ -0,0 +1,40 @@
+use std::sync::Arc;
+
+use crate::{hittable::{HitRecord, Hittable, AABB, hittable_list::HittableList, xy_rect::XYRect, xz_rect::XZRect, yz_rect::YZRect}, material::Material, ray::Ray, vec3::Point3};
+
+pub struct HittableBox {
+    min: Point3,
+    max: Point3,
+    sides: HittableList,
+}
+
+impl HittableBox {
+    pub fn new(min: Point3, max: Point3, material: Arc<dyn Material>) -> Self {
+        let mut sides = HittableList::new();
+
+        sides.add(Arc::new(XYRect { material: material.clone(), x0: min.x, x1: max.x, y0: min.y, y1: max.y, k: max.z }));
+        sides.add(Arc::new(XYRect { material: material.clone(), x0: min.x, x1: max.x, y0: min.y, y1: max.y, k: min.z }));
+
+        sides.add(Arc::new(XZRect { material: material.clone(), x0: min.x, x1: max.x, z0: min.z, z1: max.z, k: max.y }));
+        sides.add(Arc::new(XZRect { material: material.clone(), x0: min.x, x1: max.x, z0: min.z, z1: max.z, k: min.y }));
+
+        sides.add(Arc::new(YZRect { material: material.clone(), y0: min.y, y1: max.y, z0: min.z, z1: max.z, k: max.x }));
+        sides.add(Arc::new(YZRect { material: material.clone(), y0: min.y, y1: max.y, z0: min.z, z1: max.z, k: min.x }));
+
+        Self {
+            min,
+            max,
+            sides,
+        }
+    }
+}
+
+impl Hittable for HittableBox {
+    fn hit(&self, ray: &Ray, t_min: f64, t_max: f64) -> Option<HitRecord> {
+        self.sides.hit(ray, t_min, t_max)
+    }
+
+    fn bounding_box(&self, _: f64, _: f64) -> Option<AABB> {
+        Some(AABB { minimum: self.min.clone(), maximum: self.max.clone() })
+    }
+}