Add support for point light and materials.

Add material to objects.

source/include/light.h

@@ -0,0 +1,32 @@
+/*
+ *  DoRayMe - a quick and dirty Raytracer
+ *  Light header
+ *
+ *  Created by Manoël Trapier
+ *  Copyright (c) 2020 986-Studio.
+ *
+ */
+#ifndef DORAYME_LIGHT_H
+#define DORAYME_LIGHT_H
+
+#include <tuple.h>
+#include <colour.h>
+
+enum LightType
+{
+    POINT_LIGHT = 0,
+};
+
+class Light
+{
+public:
+    Colour intensity;
+    Tuple position;
+    LightType type;
+
+public:
+    Light(LightType type = POINT_LIGHT, Tuple position=Point(0, 0, 0),
+          Colour intensity=Colour(1, 1, 1)) : type(type), position(position), intensity(intensity) { };
+};
+
+#endif //DORAYME_LIGHT_H

source/include/material.h

@@ -0,0 +1,37 @@
+/*
+ *  DoRayMe - a quick and dirty Raytracer
+ *  Material header
+ *
+ *  Created by Manoël Trapier
+ *  Copyright (c) 2020 986-Studio.
+ *
+ */
+#ifndef DORAYME_MATERIAL_H
+#define DORAYME_MATERIAL_H
+
+#include <tuple.h>
+#include <colour.h>
+#include <light.h>
+
+class Material
+{
+public:
+    Colour colour;
+    double ambient;
+    double diffuse;
+    double specular;
+    double shininess;
+
+public:
+    Material() : colour(Colour(1, 1, 1)), ambient(0.1), diffuse(0.9), specular(0.9), shininess(200) {};
+
+    Colour lighting(Light light, Tuple point, Tuple eyeVector, Tuple normalVector);
+
+    bool operator==(const Material &b) const { return double_equal(this->ambient,   b.ambient) &&
+                                                      double_equal(this->diffuse,   b.diffuse) &&
+                                                      double_equal(this->specular,  b.specular) &&
+                                                      double_equal(this->shininess, b.shininess) &&
+                                                      (this->colour == b.colour); };
+};
+
+#endif //DORAYME_MATERIAL_H

source/include/object.h

@@ -15,6 +15,7 @@ class Object;
 #include <tuple.h>
 #include <matrix.h>
 #include <intersect.h>
+#include <material.h>
 
 /* Base class for all object that can be presented in the world */
 class Object
@@ -22,6 +23,7 @@ class Object
 public:
     Matrix transformMatrix;
     Matrix inverseTransform;
+    Material material;
 
 public:
     Object();
@@ -30,6 +32,7 @@ public:
     virtual Tuple normalAt(Tuple point);
 
     void setTransform(Matrix transform);
+    void setMaterial(Material material) { this->material = material; };
     Ray transform(Ray r) {  return Ray(this->transformMatrix * r.origin, this->transformMatrix * r.direction); };
     Ray invTransform(Ray r) {  return Ray(this->inverseTransform * r.origin, this->inverseTransform * r.direction); };
 };