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Diffstat (limited to 'mass.h')
| -rw-r--r-- | mass.h | 138 |
1 files changed, 138 insertions, 0 deletions
@@ -0,0 +1,138 @@ +// +// 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 +// +// ------------------------------------------------------------------------- +// +// Mass +// +// $Id$ +// +#ifndef MASS_H + +#define MASS_H + +#include "global.h" + +class Mass + { + public: + enum DrawItem {eMass, eRing}; + + Mass(); + Mass(const string& name, double mass, double scale, + double posx, double posy, double posz, + double dx, double dy, double dz, + GLfloat r, GLfloat g, GLfloat b, + double rot, int sheild=0); + virtual ~Mass(); + + // Define a ring + // + void setRing(double from, double to, + GLfloat r, GLfloat g, GLfloat b, GLfloat alpha, + double rot, double angle); + + // Set up an Open GL texture ID to use. It is assumed that + // texturing is not used till this member is called. + // + // The get function returns true if a texture has been assigned. + // + void setTexture(GLuint id); + bool getTexture(GLuint& id) const; + + void setRingTexture(GLuint id); + bool getRingTexture(GLuint& id) const; + + // Get Mass information + // + string getName() const; + double getMass() const; + double getSize() const; + void getPosition(double& x, double& x, double& x) const; + void getPreviousPosition(double& x, double& x, double& x) const; + void getDelta(double& dx, double& dx, double& dx) const; + void getColour(GLfloat& r, GLfloat& g, GLfloat& b) const; + + bool isMassless() const; + + // All resetting of various controls for collisions + // + void reset(double mass, double dx, double dy, double dz); + void reset(double mass); + + // Attract the object to the provided mass. Note that the supplied + // mass is left unaltered. + // + // Returns true if the two objects have collided + // + bool calcAttraction(Mass& m, double gr_const); + + // Move the mass along it's delta + // + void move(); + + void draw(bool solid, bool texture, DrawItem item) const; + + // Streaming + // + friend ostream& operator<<(ostream& os, const Mass& m); + + private: + string m_name; + double m_size; + double m_mass; + double m_scale; + double m_x,m_y,m_z; + double m_prevx,m_prevy,m_prevz; + double m_dx,m_dy,m_dz; + GLfloat m_r,m_g,m_b; + + bool m_massless; + + double m_rot; + double m_ang; + + int m_shield; + + bool m_textured; + GLuint m_texture_id; + + bool m_ring; + double m_ring_from,m_ring_to; + double m_ring_rot,m_ring_ang,m_ring_tilt; + GLfloat m_rr,m_rg,m_rb; + GLfloat m_ring_alpha; + bool m_ring_textured; + GLuint m_ring_id; + + double calcDistance2(Mass& m, double& dx, double& dy, double& dz); + void calcSize(); + }; + + +// Routine to find masses from a vector of them +// +bool findMass(vector<Mass>& m, const string& name, Mass& ret); +bool findMass(vector<Mass>& m, const string& name, + vector<Mass>::size_type& index); + + +#endif + +// END OF FILE // |