Add initial files

1 files changed, 25 insertions, 0 deletions

diff --git a/src/camera.rs b/src/camera.rs
new file mode 100644
index 0000000..8090bde
--- /dev/null
+++ b/src/camera.rs
@@ -0,0 +1,25 @@
+use cgmath::{Vector3, vec3};
+use crate::ray::Ray;
+
+pub struct Camera {
+    origin: Vector3<f64>,
+    lower_left_corner: Vector3<f64>,
+    horizontal: Vector3<f64>,
+    vertical: Vector3<f64>
+}
+
+impl Camera {
+    pub fn new() -> Camera {
+        Camera {
+            origin: vec3(0.0, 0.0, 0.0),
+            lower_left_corner: vec3(-2.0, -1.0, -1.0),
+            horizontal: vec3(4.0, 0.0, 0.0),
+            vertical: vec3(0.0, 2.0, 0.0)
+        }
+    }
+
+    pub fn get_ray(&self, u: f64, v: f64) -> Ray {
+        Ray::new(self.origin,
+                 self.lower_left_corner + u * self.horizontal + v * self.vertical)
+    }
+}