Initial Commit (Up to Chapter 7)

1 files changed, 12 insertions, 0 deletions

diff --git a/lib/ray.rb b/lib/ray.rb
new file mode 100644
index 0000000..4d282cb
--- /dev/null
+++ b/lib/ray.rb
@@ -0,0 +1,12 @@
+class Ray
+  def initialize(origin = Point.new, direction = Vec3.new)
+    @origin = origin
+    @direction = direction
+  end
+
+  attr_reader :origin, :direction
+
+  def at(time)
+    @origin + (@direction * time)
+  end
+end