www.pudn.com > simpleraytracer_v1_0.zip > world.h

/*=================================================================== 
 
   
  digital liberation front 2002 
   
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 /______/\  |______|    /\______\   
|       \ \ |      |   / /       |     
|	      \| |      |  |/         |   
|_____    \ |      |_ /    ______|        
 ____|    | |      |_||    |_____           
     |____| |________||____|                 
            
 
 
 
Code by Nicholas Chapman[/ Ono-Sendai] 
nickamy@paradise.net.nz 
 
You may use this code for any non-commercial project, 
as long as you do not remove this description. 
 
You may not use this code for any commercial project. 
====================================================================*/ 
#ifndef __WORLD_H__ 
#define __WORLD_H__ 
 
#include  
#include "../maths/vec3.h" 
 
class Vec3; 
class Object; 
class Light; 
class Ray; 
class Colour; 
 
 
/*=================================================================== 
World 
----- 
this class represents the scene (collection of objects/lights), 
and supplies operations on the scene (raytrace, lighting etc..) 
====================================================================*/ 
class World 
{ 
public: 
	World(); 
	~World(); 
 
	void getColourForRay(const Ray& ray, Colour& colour_out); 
	 
	bool doesFiniteRayHitAnything(const Ray& ray, float length); 
 
 
	//----------------------------------------------------------------- 
	//object/light insertion funcs 
	//objects inserted in this way will be deleted upon distruction of the world object 
	//----------------------------------------------------------------- 
	void insertObject(Object* ob); 
 
	void insertLight(Light* light); 
 
 
	//Calculate the lighting at a certain point with a certain normal 
	void calcLightingForSurfPoint(const Object& ob, const Vec3& unit_cam_ray, const Vec3& ob_intersect_pos, 
		const Vec3& ob_normal, Colour& lighting_out); 
 
 
private: 
 
	std::vector objects; 
	std::vector lights; 
 
	Vec3 cam_pos; 
	Vec3 cam_down; 
	Vec3 cam_right; 
	Vec3 cam_forwards; 
}; 
 
 
#endif //__WORLD_H__