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//
// glgrav - OpenGL N-Body gravity simulator
//
// Copyright (C) 2003 Ian Cowburn (ianc@noddybox.demon.co.uk)
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// -------------------------------------------------------------------------
//
// Data file handling
//
// $Id$
//
#ifndef CONFIG_H
#define CONFIG_H
#include "global.h"
#include <fstream>
#include "mass.h"
class Config
{
public:
enum Flag {solid, lighting, texture, fog, num_flags};
enum Collide {none, merge, delta_merge, shatter};
Config();
virtual ~Config();
// Note that the vector is added to. It must be cleared beforehand
// if required.
//
bool read(const string& file, vector<Mass>& mass);
void getCamera(GLfloat& x, GLfloat& y, GLfloat& z, GLfloat& yaw) const;
bool enabled(Flag flag) const;
Collide collide() const;
string light(GLfloat v[4]) const;
double gravConst() const;
double scale() const;
void windowSize(int& w,int& h) const;
void getShatter(int& num, double& delta,
double& min_mass, double& max_mass,
int& shield) const;
bool sparksDefined() const;
void getSparks(int& num, GLfloat& alpha_dec, GLfloat& alpha_min,
int& length, GLfloat& delta) const;
size_t maxMass() const;
const string& output() const;
// Args set to -1 if undefined
//
void getLookAndTravel(int& look, int &travel) const;
bool particlesDefined() const;
void getParticles(GLfloat& alpha_dec, GLfloat& alpha_min,
GLfloat& size) const;
void getFog(GLfloat& dist, GLfloat& r, GLfloat& g, GLfloat& b,
bool& fog_light);
void look(vector<string>& l) const;
string error() const;
private:
enum Plane {xy_plane, xz_plane, yz_plane};
Plane m_plane;
string m_error;
bool m_flag[num_flags];
Collide m_collide;
double m_const;
GLfloat m_x;
GLfloat m_y;
GLfloat m_z;
GLfloat m_pitch;
GLfloat m_yaw;
double m_scale;
string m_light;
GLfloat m_lr;
GLfloat m_lg;
GLfloat m_lb;
vector<string> m_look;
int m_look_at;
int m_travel_as;
bool m_particles;
GLfloat m_p_adec;
GLfloat m_p_amin;
GLfloat m_p_size;
GLuint *m_glid;
int m_glid_no;
int m_glid_idx;
int m_s_no;
double m_s_delta;
double m_s_min;
double m_s_max;
int m_s_shield;
bool m_sparks;
int m_sp_no;
GLfloat m_sp_adec;
GLfloat m_sp_amin;
int m_sp_length;
GLfloat m_sp_delta;
int m_winw;
int m_winh;
size_t m_max_mass;
GLfloat m_fog_dist;
GLfloat m_fog_r;
GLfloat m_fog_g;
GLfloat m_fog_b;
bool m_fog_light;
string m_output;
enum Command {enable_cmd, disable_cmd, collide_cmd, const_cmd,
body_cmd, radial_cmd, light_cmd, camera_cmd, look_cmd,
texture_cmd, num_texture_cmd, reuse_cmd, particles_cmd,
shatter_cmd, multiple_cmd, mreuse_cmd, plane_cmd,
scale_cmd, look_at_cmd, travel_as_cmd, window_size_cmd,
sparks_cmd, max_mass_cmd, mlook_cmd,
ring_cmd, mring_cmd, ring_texture_cmd, ring_reuse_cmd,
ring_mreuse_cmd, fog_cmd, output_cmd,
cmd_eof, cmd_error};
enum GetWordStatus {GWOK, GWEof, GWSyntax,
GWTooFewArgs, GWTooManyArgs};
bool CompareNoCase(const string& s1, const string& s2);
GetWordStatus getWord(ifstream& fp, string& word,
const string& ignore, const string& term);
bool getCommand(ifstream& fp, Command& cmd, vector<string>& val);
void genRadial(Mass **newMass, const Mass& parent,
const string& name, double mass,
double dist, double ang, double spd,
GLfloat r, GLfloat g, GLfloat b, double rot);
double toDouble(const string& s);
GLfloat toGLfloat(const string& s);
int toInt(const string& s);
size_t toSize(const string& s);
bool toYesNo(const string& s);
bool bindTexture(const string& name, int w, int h, GLuint id);
string makeName(string& name, int no);
};
#endif
// END OF FILE //
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