OpenRaider/src/Vector3d.cpp

/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: t; c-basic-offset: 3 -*- */
/*================================================================
 *
 * Project : Hel
 * Author  : Terry 'Mongoose' Hendrix II
 * Website : http://www.westga.edu/~stu7440/
 * Email   : stu7440@westga.edu
 * Object  : Vector3d
 * License : No use w/o permission (C) 2002 Mongoose
 * Comments: Math vector
 *
 *
 *           This file was generated using Mongoose's C++
 *           template generator script.  <stu7440@westga.edu>
 *
 *-- History -------------------------------------------------
 *
 * 2002.12.24:
 * Mongoose - Created
 =================================================================*/

#include <math.h>

#include <Vector3d.h>


////////////////////////////////////////////////////////////
// Constructors
////////////////////////////////////////////////////////////

Vector3d::Vector3d()
{
	mVec[0] = mVec[1] = mVec[2] = 0.0f;
}


Vector3d::Vector3d(vec3_t v)
{
	mVec[0] = v[0];
	mVec[1] = v[1];
	mVec[2] = v[2];
}


Vector3d::Vector3d(vec_t x, vec_t y, vec_t z)
{
	mVec[0] = x;
	mVec[1] = y;
	mVec[2] = z;
}


Vector3d::~Vector3d()
{
}


////////////////////////////////////////////////////////////
// Public Accessors
////////////////////////////////////////////////////////////

vec_t Vector3d::dot(const Vector3d &u, const Vector3d &v)
{
	return (u.mVec[0]*v.mVec[0] + u.mVec[1]*v.mVec[1] + u.mVec[2]*v.mVec[2]);
}


Vector3d Vector3d::cross(const Vector3d &u, const Vector3d &v)
{
	return Vector3d(u.mVec[1] * v.mVec[2] - u.mVec[2] * v.mVec[1],
						 u.mVec[2] * v.mVec[0] - u.mVec[0] * v.mVec[2],
						 u.mVec[0] * v.mVec[1] - u.mVec[1] * v.mVec[0]);
}


vec_t Vector3d::magnitude()
{
	return sqrt(mVec[0]*mVec[0] + mVec[1]*mVec[1] + mVec[2]*mVec[2]);
}


Vector3d Vector3d::unit()
{
	vec_t norm = magnitude();

	return Vector3d(mVec[0] / norm,
						 mVec[1] / norm,
						 mVec[2] / norm);
}


Vector3d Vector3d::zeroVector()
{
	return Vector3d(0, 0, 0);
}


Vector3d Vector3d::operator +(const Vector3d &v)
{
	return Vector3d(mVec[0] + v.mVec[0],
						 mVec[1] + v.mVec[1],
						 mVec[2] + v.mVec[2]);
}


Vector3d Vector3d::operator -(const Vector3d &v)
{
	return Vector3d(mVec[0] - v.mVec[0],
						 mVec[1] - v.mVec[1],
						 mVec[2] - v.mVec[2]);
}


Vector3d Vector3d::operator -()
{
	return Vector3d(-mVec[0],
						 -mVec[1],
						 -mVec[2]);
}


Vector3d Vector3d::operator *(vec_t s)
{
	return Vector3d(s * mVec[0],
						 s * mVec[1],
						 s * mVec[2]);
}


Vector3d Vector3d::operator /(vec_t s)
{
	return Vector3d(mVec[0] / s,
						 mVec[1] / s,
						 mVec[2] / s);
}


vec_t Vector3d::operator *(const Vector3d &v)
{
	return dot(*this, v);
}


//Vector3d Vector3d::operator *(const Matrix &m)
//{
//	vec3_t v;
//
//	return
//}


////////////////////////////////////////////////////////////
// Public Mutators
////////////////////////////////////////////////////////////

void Vector3d::normalize()
{
	vec_t norm = magnitude();

	mVec[0] /= norm;
	mVec[1] /= norm;
	mVec[2] /= norm;
}


void Vector3d::zero()
{
	mVec[0] = 0;
	mVec[1] = 0;
	mVec[2] = 0;
}


void Vector3d::operator =(const Vector3d &v)
{
	mVec[0] = v.mVec[0];
	mVec[1] = v.mVec[1];
	mVec[2] = v.mVec[2];
}


void Vector3d::operator +=(const Vector3d &v)
{
	mVec[0] += v.mVec[0];
	mVec[1] += v.mVec[1];
	mVec[2] += v.mVec[2];
}


void Vector3d::operator -=(const Vector3d &v)
{
	mVec[0] -= v.mVec[0];
	mVec[1] -= v.mVec[1];
	mVec[2] -= v.mVec[2];
}


void Vector3d::operator *=(vec_t s)
{
	mVec[0] *= s;
	mVec[1] *= s;
	mVec[2] *= s;
}


////////////////////////////////////////////////////////////
// Private Accessors
////////////////////////////////////////////////////////////


////////////////////////////////////////////////////////////
// Private Mutators
////////////////////////////////////////////////////////////