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/*
model/objfile.h
This file is part of the Osirion project and is distributed under
the terms of the GNU General Public License version 2
*/
/* http://www.royriggs.com/obj.html
http://en.wikipedia.org/wiki/Wavefront_.obj_file */
#ifndef __INCLUDED_MODEL_OBJFILE_H__
#define __INCLUDED_MODEL_OBJFILE_H__
#include "math/vector3f.h"
#include "model/model.h"
#include "model/material.h"
#include "model/fragment.h"
#include "model/triangle.h"
#include "model/quad.h"
#include "filesystem/filestream.h"
#include <string>
#include <map>
#include <vector>
#include <utility>
namespace model
{
/// class to parse the .obj file structure and load geometry data into a model
class OBJFile
{
public:
/**
* @brief load a .obj file into a Model
* @param name name of the model to be loaded, without .obj extension.
* If the file can not be read, load() returns the NULL-pointer
*/
static Model *load(std::string const &name);
private:
/**
* @brief type definition for a list of materials in the ASE file
*/
typedef std::map<size_t, Material *> MaterialList;
/**
* @brief type definition for a list of vertices
*/
typedef std::map<size_t, math::Vector3f *> VertexList;
typedef std::map<size_t, math::Vector3f *> NormalList;
typedef std::map<size_t, math::Vector2f *> UVList;
/**
* @brief type definition for a list of faces
*/
typedef std::list<std::pair<size_t, Triangle *> > TriList;
typedef std::list<std::pair<size_t, Quad *> > QuadList;
OBJFile(std::string const &name);
~OBJFile();
/**
* @brief read the .obj file
*/
bool read();
/**
* @brief parse a line in the .obj file
*/
void readline(std::string const &line);
inline const std::string &name() const {
return objfile_name;
}
inline bool is_open() {
return objfile_ifs.is_open();
}
inline size_t vertexcount() const {
return obj_vertexlist.size();
}
inline FragmentGroup *fragmentgroup() {
return obj_fragmentgroup;
}
inline const math::BoundingBox3f & box() const {
return obj_box;
}
math::Vector3f *find_vertex(size_t index);
math::Vector3f *find_normal(size_t index);
math::Vector2f *find_uv(size_t index);
std::string objfile_name;
filesystem::IFileStream objfile_ifs;
MaterialList obj_materiallist;
VertexList obj_vertexlist;
UVList obj_uvlist;
NormalList obj_normallist;
TriList obj_trilist;
QuadList obj_quadlist;
math::BoundingBox3f obj_box;
FragmentGroup *obj_fragmentgroup;
size_t obj_normalcount;
bool obj_load_clip;
CollisionModel *obj_collisionmodel;
};
} // namespace model
#endif // __INCLUDED_MODEL_OBJFILE_H__
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