Started scene reader. Added libjson-spirit dependency.

scene.hpp

@@ -0,0 +1,34 @@
+#pragma once
+#ifndef SCENE_HPP
+#define SCENE_HPP
+
+#include <string>
+#include <vector>
+#include <stdexcept>
+
+#include "camera.hpp"
+#include "figure.hpp"
+#include "light.hpp"
+#include "environment.hpp"
+
+using std::string;
+using std::vector;
+using std::runtime_error;
+
+class SceneError: public runtime_error {
+public:
+  explicit SceneError(const string & what_arg): runtime_error(what_arg) { }
+};
+
+class Scene {
+public:
+  vector<Figure *> m_figures;
+  vector<Light *> m_lights;
+  Environment * m_env;
+  Camera * m_cam;
+
+  Scene(const char * file_name, int h = 480, int w = 640, float fov = 90.0f) throw(SceneError);
+  ~Scene();
+};
+
+#endif