Initial commit

hittable.h

@@ -0,0 +1,34 @@
+#ifndef HITTABLE_H
+#define HITTABLE_H
+
+#include "rayTracer.h"
+
+class material;
+
+class hitRecord {
+    public: 
+        point3 p;
+        vec3 normal;
+        shared_ptr<material> mat;
+        double t;
+        bool frontFace;
+
+        void setFaceNormal(const ray& r, const vec3& outwardNormal) {
+            /* 
+            * Sets the hit record normal vector.
+            * NOTE: the parameter `outward_normal` is assumed to have unit length.
+            */
+           
+            frontFace = dot(r.direction(), outwardNormal) < 0;
+            normal = frontFace ? outwardNormal : -outwardNormal;
+        }
+};
+
+class hittable {
+    public:
+    virtual ~hittable() = default;
+
+    virtual bool hit(const ray& r, interval rayT, hitRecord& rec) const = 0; 
+};
+
+#endif