[Grappelmann-commits] spaceplane coord3d.h,NONE,1.1 opengl_includes.h,NONE,1.1

[Mike D. <o3d...@us...>]

Update of /cvsroot/grappelmann/spaceplane
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv9950

Added Files:
	coord3d.h opengl_includes.h 
Log Message:
- split out these files to make the include tree more sensible


--- NEW FILE: coord3d.h ---

/*
$Id: coord3d.h,v 1.1 2004/07/23 05:45:06 o3dozone Exp $
*/

#ifndef COORD3D_H
#define COORD3D_H

#include <iostream>

using namespace std;

typedef long double pos_t;

struct Coord3D {
	Coord3D()
		: m_x(0), m_y(0), m_z(0)
	{};
		
	Coord3D(pos_t x, pos_t y, pos_t z)
		: m_x(x), m_y(y), m_z(z)
	{};

	Coord3D(const Coord3D& rhs)
		: m_x(rhs.m_x), m_y(rhs.m_y), m_z(rhs.m_z)
	{};

	bool isZero() {
		if(m_x == 0 && m_y == 0 && m_z == 0) {
			return true;
		} else {
			return false;
		}
	};

	bool operator==(const Coord3D& rhs) {
		if((m_x == rhs.m_x) && (m_y == rhs.m_y) && (m_z == rhs.m_z)) {
			return true;
		} else {
			return false;
		}
	};
	
	bool operator==(const Coord3D& rhs) const {
		return((Coord3D)(*this) == rhs);
	};
	
	Coord3D& operator=(const Coord3D& rhs) {
		m_x = rhs.m_x;
		m_y = rhs.m_y;
		m_z = rhs.m_z;

		return(*this);
	};

	Coord3D operator*(long double rhs) const {
		return((Coord3D)(*this) * rhs);
	};

	Coord3D operator*(long double rhs) {
		Coord3D result(0, 0, 0);

		result.m_x = m_x * rhs;
		result.m_y = m_y * rhs;
		result.m_z = m_z * rhs;

		return result;
	};

	Coord3D operator+(const Coord3D& rhs) const {
		return((Coord3D)(*this) + rhs);
	};

	Coord3D operator+(const Coord3D& rhs) {
		Coord3D result(0, 0, 0);

		result.m_x = m_x + rhs.m_x;
		result.m_y = m_y + rhs.m_y;
		result.m_z = m_z + rhs.m_z;

		return result;
	};

	Coord3D operator-(const Coord3D& rhs) const {
		return((Coord3D)(*this) + rhs);
	};

	Coord3D operator-(const Coord3D& rhs) {
		Coord3D result(0, 0, 0);

		result.m_x = m_x - rhs.m_x;
		result.m_y = m_y - rhs.m_y;
		result.m_z = m_z - rhs.m_z;

		return result;
	};

	Coord3D crossProduct(const Coord3D& rhs) {
		Coord3D result(0, 0, 0);

		//(aybz - azby)i+ (azbx - axbz)j+ (axby - aybx)k;
		result.m_x = m_y * rhs.m_z - m_z * rhs.m_y;
		result.m_y = m_z * rhs.m_x - m_x * rhs.m_z;
		result.m_z = m_x * rhs.m_y - m_y * rhs.m_x;

		return result;
	};

	Coord3D distance(const Coord3D& rhs) {
		Coord3D result(0, 0, 0);

		result.m_x = m_x - rhs.m_x;
		result.m_y = m_y - rhs.m_y;
		result.m_z = m_z - rhs.m_z;
	
		return result;
	};

	void normalise() {
		pos_t vectorLength = length();

		if(vectorLength != 0) {
			m_x /= vectorLength;
			m_y /= vectorLength;
			m_z /= vectorLength;
		} else {
			m_x = 0;
			m_y = 0;
			m_z = 0;
		}
	};
	
	bool isParallel(const Coord3D& rhs, bool& sameDirection) {
		pos_t x	= m_x / rhs.m_x;
		pos_t y = m_y / rhs.m_y;
		pos_t z = m_z / rhs.m_z;
		
		//cout << "<::isParallel>\tx [" << x << "] y [" << y << "] z [" << z << "]" << endl;
		
		/*
		if((m_x == rhs.m_x) && (m_x == 0)) {
			cout << "x is zero" << endl;
		} else if((m_y == rhs.m_y) && (m_y == 0)) {
			cout << "y is zero" << endl;
		} else if((m_z == rhs.m_z) && (m_z == 0)) {
			cout << "z is zero" << endl;
		}
		*/
		
		sameDirection = true;
		
		if((!((m_x == rhs.m_x) && (m_x == 0))) && (!((m_y == rhs.m_y) && (m_y == 0))) && (x != y)) {
			cout << "1" << endl;
			return false;
		} else if((!((m_x == rhs.m_x) && (m_x == 0))) && (!((m_z == rhs.m_z) && (m_z == 0))) && (x != z)) {
			cout << "2" << endl;
			return false;
		} else if((!((m_z == rhs.m_z) && (m_z == 0))) && (!((m_y == rhs.m_y) && (m_y == 0))) && (z != y)) {
			cout << "3" << endl;
			return false;
		} else {
		
			//cout << "parallel" << endl;
			
			if((x < 0) || (y < 0) || (z < 0)) {
				//cout << "\topposite direction" << endl;
				sameDirection = false;
			}
			
			return true;
		}
	};

	pos_t length() const {
		return (pos_t)sqrt(m_x * m_x + m_y * m_y + m_z * m_z);
	}

	pos_t length() {
		return (pos_t)sqrt(m_x * m_x + m_y * m_y + m_z * m_z);
	}

	pos_t m_x;
	pos_t m_y;
	pos_t m_z;
};

Coord3D operator*(long double lhs, const Coord3D& rhs);

#endif



--- NEW FILE: opengl_includes.h ---

/*
$Id: opengl_includes.h,v 1.1 2004/07/23 05:45:06 o3dozone Exp $
*/

#include <SDL.h>
#include <GL/gl.h>
#include <GL/glu.h>
#include <GL/glut.h>

/*
$Log: opengl_includes.h,v $
Revision 1.1  2004/07/23 05:45:06  o3dozone
- split out these files to make the include tree more sensible

*/