World is on the verge of working!

source/include/intersection.h

@@ -10,9 +10,23 @@
 #define DORAYME_INTERSECTION_H
 
 #include <stdlib.h>
+#include <ray.h>
 
 class Shape;
 
+struct Computation
+{
+    Computation(Shape *object, double t, Tuple point, Tuple eyev, Tuple normalv, bool inside) :
+          object(object), t(t), hitPoint(point), eyeVector(eyev), normalVector(normalv), inside(inside) { };
+    Shape *object;
+    double t;
+    Tuple hitPoint;
+    Tuple eyeVector;
+    Tuple normalVector;
+
+    bool inside;
+};
+
 class Intersection
 {
 public:
@@ -23,6 +37,8 @@ public:
     Intersection(double t, Shape *object) : t(t), object(object) { };
     bool nothing() { return (this->object == nullptr); };
 
+    Computation prepareComputation(Ray r);
+
     bool operator==(const Intersection &b) const { return ((this->t == b.t) && (this->object == b.object)); };
 };