---

Scene.h

/*
  File: Scene.h

  Copyright(C) C. Kotterink, Computed Graphics
*/
#ifndef SCENE_H
#define SCENE_H

#include<DynamicObject.h>
#include<Camera.h>
#include<Fog.h>
#include<ObjectFile.h>
#include<Shape.h>

#include<vector>

class Light;
class Ray;

class Scene : public DynamicObject
{
    DYNAMIC_OBJECT;
public:

    Scene() : camera() {}
    virtual ~Scene();

    Vertex3 cameraPosition() { return camera.getPosition(); }
    Camera &getCamera() {
        return camera;
    };
    vector<Shape *> &getShapes() {
        return shape;
    }
    vector<Light *> &getLights() {
        return light;
    }
    void setRecursion(int r) { recursion = r; }

    void update();
    void addTime(float t);

    real intersect(const Ray &ray);
    Color4 trace(const Ray &ray, real minimum = Shape::step);

    // Inherited from DynamicObject
    void parseSymbol(Token &t, ObjectFile &file);
    void writeParams(ostream &stream);

protected:
    // Inherited from DynamicObject
    void createSymbols();

    Camera camera;
    Fog fog;
    vector<Shape *> shape;
    vector<Light *> light;
    int recursion;

private:
    typedef DynamicObject super;
};

class SurfaceInfo
{
public:
    SurfaceInfo(Vertex3 &point, Vertex3 &normal, Vertex3 ray)
        : p(point), n(normal), r(ray) {
    }

    const Vertex3 &point() const { return p; } 
    const Vertex3 &normal() const  { return n; }
    const Vertex3 &ray() const { return r; }

private:
    Vertex3 p;
    Vertex3 n;
    Vertex3 r;
};
#endif

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