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// $Id: mpVector.cxx 797 2009-01-16 15:06:53Z larry $
/* 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
*/
//
/////////////////////////////////////////////////////////////////////////////////////////////////////
//
// FileName: mpVector.cpp
// Author : Michael Y. Polyakov
// email : myp@andrew.cmu.edu or mikepolyakov@hotmail.com
// Website : www.angelfire.com/linux/myp
// Date : 7/16/2002
//
// Provides basic vector handling.
//////////////////////////////////////////////////////////////////////////////////////////////////////
#include "mpVector.h"
mpVector::mpVector(float xx, float yy, float zz) :
x(xx), y(yy), z(zz)
{ }
mpVector::mpVector() : x(0), y(0), z(0)
{ }
mpVector::mpVector(const mpVector& other) : x(other.x), y(other.y), z(other.z)
{ }
mpVector& mpVector::Normalize()
{
float length = (float)sqrt(x*x + y*y + z*z);
if(!length) return *this;
x /= length;
y /= length;
z /= length;
return *this;
}
float mpVector::Magnitude()
{
return (float)sqrt(x*x + y*y + z*z);
}
mpVector mpVector::Cross(const mpVector& other)
{
return mpVector(y*other.z-z*other.y, z*other.x-x*other.z, x*other.y-y*other.x);
}
mpVector mpVector::operator - (mpVector v)
{
return mpVector(x - v.x, y - v.y, z - v.z);
}
mpVector mpVector::operator + (mpVector v)
{
return mpVector(x + v.x, y + v.y, z + v.z);
}
float mpVector ::operator * (mpVector v)
{
return x*v.x + y*v.y + z*v.z;
}
mpVector mpVector::operator - (float c)
{
return mpVector(x-c, y-c, z-c);
}
mpVector mpVector::operator + (float c)
{
return mpVector(x+c, y+c, z+c);
}
mpVector mpVector::operator / (float c)
{
return mpVector(x/c, y/c, z/c);
}
mpVector mpVector::operator * (float c)
{
return mpVector(x*c, y*c, z*c);
}
void mpVector::operator = (const mpVector& other)
{
x = other.x;
y = other.y;
z = other.z;
}
mpVector::operator mp4Vector() const
{
return mp4Vector(*this);
}
mp4Vector::mp4Vector() : x(0), y(0), z(0), val(0)
{ }
mp4Vector::mp4Vector(float aa, float bb, float cc, float dd) :
x(aa), y(bb), z(cc), val(dd)
{ }
mp4Vector::mp4Vector(const mp4Vector& other) :
x(other.x), y(other.y), z(other.z), val(other.val)
{ }
mp4Vector::mp4Vector(const mpVector& v, const float value) :
x(v.x), y(v.x), z(v.z), val(value)
{ }
void mp4Vector::operator = (const mp4Vector& v)
{
x = v.x; y = v.y; z = v.z; val = v.val;
}
void mp4Vector::operator = (const mpVector& v)
{
x = v.x; y = v.y; z = v.z;
}
mp4Vector::operator mpVector() const
{
return mpVector(x, y, z);
}
bool mp4Vector::operator == (const mp4Vector& v) const
{
return x == v.x && y == v.y && z == v.z && val == v.val;
}
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