Add Scene type and Sphere intersect

1 files changed, 38 insertions, 0 deletions

diff --git a/src/scene/scene.rs b/src/scene/scene.rs
new file mode 100644
index 0000000..a2f5b88
--- /dev/null
+++ b/src/scene/scene.rs
@@ -0,0 +1,38 @@
+use super::shapes::Shape;
+use crate::Float;
+use crate::core::Ray;
+
+pub struct Scene {
+    shps: Vec<Box<dyn Shape>>,
+}
+
+pub struct Intersection<'a> {
+    pub shp: &'a dyn Shape,
+    pub t: Float,
+}
+
+impl Scene {
+    pub fn new() -> Self {
+        Self {
+            shps: Vec::new(),
+        }
+    }
+
+    pub fn add_shape(&mut self, shp: Box<dyn Shape>) {
+        self.shps.push(shp);
+    }
+
+    pub fn intersect(&self, ray: Ray) -> Option<Intersection> {
+        for shp in self.shps.iter() {
+            if let Some(t) = shp.intersect(&ray) {
+                return Some(Intersection {
+                    shp: shp.as_ref(),
+                    t,
+                })
+            }
+        }
+
+        None
+    }
+}
+