#ifndef _MFloatVector
#define _MFloatVector
//-
// ==========================================================================
// Copyright (C) 1995 - 2006 Autodesk, Inc., and/or its licensors.  All
// rights reserved.
//
// The coded instructions, statements, computer programs, and/or related
// material (collectively the "Data") in these files contain unpublished
// information proprietary to Autodesk, Inc. ("Autodesk") and/or its
// licensors,  which is protected by U.S. and Canadian federal copyright law
// and by international treaties.
//
// The Data may not be disclosed or distributed to third parties or be
// copied or duplicated, in whole or in part, without the prior written
// consent of Autodesk.
//
// The copyright notices in the Software and this entire statement,
// including the above license grant, this restriction and the following
// disclaimer, must be included in all copies of the Software, in whole
// or in part, and all derivative works of the Software, unless such copies
// or derivative works are solely in the form of machine-executable object
// code generated by a source language processor.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND.
// AUTODESK DOES NOT MAKE AND HEREBY DISCLAIMS ANY EXPRESS OR IMPLIED
// WARRANTIES INCLUDING, BUT NOT LIMITED TO, THE WARRANTIES OF
// NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE,
// OR ARISING FROM A COURSE OF DEALING, USAGE, OR TRADE PRACTICE. IN NO
// EVENT WILL AUTODESK AND/OR ITS LICENSORS BE LIABLE FOR ANY LOST
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// CONSEQUENTIAL DAMAGES, EVEN IF AUTODESK AND/OR ITS LICENSORS HAS
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// ==========================================================================
//+
//
// CLASS:    MFloatVector
//
// ****************************************************************************

#if defined __cplusplus

// ****************************************************************************
// INCLUDED HEADER FILES


#include <maya/MTypes.h>
#include <maya/MStatus.h>
#include <math.h>

// ****************************************************************************
// DECLARATIONS

class MFloatMatrix;
class MFloatPoint;
class MVector;
class MPoint;
#define MFloatVector_kTol 1.0e-5F

// ****************************************************************************
// CLASS DECLARATION (MFloatVector)

//! \ingroup OpenMaya
//! \brief A vector math class for vectors of floats.
/*!
  This class provides access to Maya's internal vector math library
  allowing vectors to be handled easily, and in a manner compatible
  with internal Maya data structures.

  All methods that query the vector are threadsafe, all methods that
  modify the vector are not threadsafe.

*/
class OPENMAYA_EXPORT MFloatVector
{
public:
						MFloatVector();
						MFloatVector( const MFloatPoint&);
						MFloatVector( const MFloatVector&);
						MFloatVector( const MVector&);
						MFloatVector( const MPoint&);
						MFloatVector( float xx, float yy, float zz = 0.0);
						MFloatVector( const float d[3] );
						~MFloatVector();
 	MFloatVector&		operator= ( const MFloatVector& src );
 	float   			operator()( unsigned int i ) const;
	float				operator[]( unsigned int i )const;
 	MFloatVector		operator^( const MFloatVector& right) const;
 	MFloatVector&   	operator/=( float scalar );
 	MFloatVector 	    operator/( float scalar ) const;
 	MFloatVector& 		operator*=( float scalar );
 	MFloatVector   		operator*( float scalar ) const;
 	MFloatVector   		operator+( const MFloatVector& other) const;
	MFloatVector&		operator+=( const MFloatVector& other );
 	MFloatVector   		operator-() const;
 	MFloatVector   		operator-( const MFloatVector& other ) const;
	MFloatVector&		operator-=( const MFloatVector& other );
 	MFloatVector  		operator*( const MFloatMatrix&) const;
 	MFloatVector&		operator*=( const MFloatMatrix&);
 	float      		    operator*( const MFloatVector& other ) const;
 	bool       		   	operator!=( const MFloatVector& other ) const;
 	bool       	    	operator==( const MFloatVector& other ) const;
	MStatus				get( float[3] ) const;
 	float      		   	length() const;
 	MFloatVector  		normal() const;
	MStatus				normalize();
 	float      		 	angle( const MFloatVector& other ) const;
	bool				isEquivalent( const MFloatVector& other,
									  float tolerance = MFloatVector_kTol )
									  const;
 	bool       		   	isParallel( const MFloatVector& other,
									float tolerance = MFloatVector_kTol )
									const;
BEGIN_NO_SCRIPT_SUPPORT:

	//!	NO SCRIPT SUPPORT
 	float&     		 	operator()( unsigned int i );

	//!	NO SCRIPT SUPPORT
 	float&     		 	operator[]( unsigned int i );

	//!	NO SCRIPT SUPPORT
	MFloatVector		transformAsNormal( const MFloatMatrix & matrix ) const;

	//!	NO SCRIPT SUPPORT
 	friend OPENMAYA_EXPORT MFloatVector	operator*( int,
												   const MFloatVector& );
	//!	NO SCRIPT SUPPORT
 	friend OPENMAYA_EXPORT MFloatVector	operator*( short,
												   const MFloatVector& );
	//!	NO SCRIPT SUPPORT
 	friend OPENMAYA_EXPORT MFloatVector	operator*( unsigned int,
												   const MFloatVector& );
	//!	NO SCRIPT SUPPORT
 	friend OPENMAYA_EXPORT MFloatVector	operator*( unsigned short,
												   const MFloatVector& );
	//!	NO SCRIPT SUPPORT
 	friend OPENMAYA_EXPORT MFloatVector	operator*( float,
												   const MFloatVector& );
	//!	NO SCRIPT SUPPORT
 	friend OPENMAYA_EXPORT MFloatVector	operator*( double,
												   const MFloatVector& );
	//!	NO SCRIPT SUPPORT
 	friend OPENMAYA_EXPORT MFloatVector	operator*( const MFloatMatrix&,
												   const MFloatVector& );
	//!	NO SCRIPT SUPPORT
	friend OPENMAYA_EXPORT std::ostream& operator<<( std::ostream& os,
												const MFloatVector& v );

END_NO_SCRIPT_SUPPORT:

	//! The null vector
	static const MFloatVector zero;
	//! The vector <1.0,1.0,1.0>
	static const MFloatVector one;
	//! Unit vector in the positive x direction
	static const MFloatVector xAxis;
	//! Unit vector in the positive y direction
	static const MFloatVector yAxis;
	//! Unit vector in the positive z direction
	static const MFloatVector zAxis;
	//! Unit vector in the negative z direction
	static const MFloatVector xNegAxis;
	//! Unit vector in the negative z direction
	static const MFloatVector yNegAxis;
	//! Unit vector in the negative z direction
	static const MFloatVector zNegAxis;
	//! The x component of the vector
	float x;
	//! The y component of the vector
	float y;
	//! The z component of the vector
	float z;

protected:
// No protected members

private:
// No private members

};

#ifdef WANT_GCC41_FRIEND
MFloatVector	operator*( int, const MFloatVector& );
MFloatVector	operator*( short, const MFloatVector& );
MFloatVector	operator*( unsigned int, const MFloatVector& );
MFloatVector	operator*( unsigned short, const MFloatVector& );
MFloatVector	operator*( float, const MFloatVector& );
MFloatVector	operator*( double, const MFloatVector& );
#endif

/*!
	The default class constructor. Creates a null vector.
*/
inline MFloatVector::MFloatVector()
 	: x(0.0)
	, y(0.0)
	, z(0.0)
{
}

/*!
	The copy constructor.  Create a new vector and initialize it
	to the same values as the given vector.

	\param[in] src the vector object to copy
*/
inline MFloatVector::MFloatVector(const MFloatVector& src)
 	: x(src.x)
	, y(src.y)
	, z(src.z)
{
}

/*!
	Class constructor.  Initializes the vector with the
	explicit x, y and z values provided as arguments.

	\param[in] xx the x component of the vector
	\param[in] yy the y component of the vector
	\param[in] zz the z component of the vector.  Defaults to 0.0.
*/
inline MFloatVector::MFloatVector(float xx, float yy, float zz)
 	: x(xx)
	, y(yy)
	, z(zz)
{
}

/*!
	Class constructor.  Initializes the vector with the
	explicit x, y and z values provided in the given float array.

	\param[in] d the 3 element array containing the initial x, y, and z values.
*/
inline MFloatVector::MFloatVector( const float d[3] )
 	: x(d[0])
	, y(d[1])
	, z(d[2])
{
}

/*!
	Class destructor.
*/
inline MFloatVector::~MFloatVector()
{
}

/*!
	The assignment operator.  Allows assignment between MFloatVectors.

	\param[in] src The vector to copy from.

	\return 
	A reference to the assigned vector.
*/
inline MFloatVector& MFloatVector::operator= (const MFloatVector& src)
{
	x=src.x;
	y=src.y;
	z=src.z;
	return *this;
}

/*!
	The index operator.  If its argument is 0 it will return the
	x component of the vector. If its argument is 1 it will return
	the y component of the vector. Otherwise it will return the
	z component of the vector.

	\param[in] i Value indicating which component to return.

	\return 
	Reference to the vector component.
*/
inline float& MFloatVector::operator()( unsigned int i )
{
	//	switch is more efficient than else-if and can be better optimized
	//	by compilers.
	//
	switch (i)
	{
		default:
		case 2:	return z;
		case 1:	return y;
		case 0:	return x;
	}
}

/*!
	The index operator.  If its argument is 0 it will return the
	x component of the vector.  If its argument is 1 it will return
	the y component of the vector.  Otherwise it will return the
	z component of the vector.

	\param[in] i Value indicating which component to return.

	\return 
	The vector component.
*/
inline float MFloatVector::operator()( unsigned int i ) const
{
	switch (i)
	{
		default:
		case 2:	return z;
		case 1:	return y;
		case 0:	return x;
	}
}

/*!
	The index operator.  If its argument is 0 it will return the
	x component of the vector.  If its argument is 1 it will return
	the y component of the vector.  Otherwise it will return the
	z component of the vector.

	\param[in] i Value indicating which component to return.

	\return 
	Reference to the vector component.
*/
inline float& MFloatVector::operator[]( unsigned int i )
{
	switch (i)
	{
		default:
		case 2:	return z;
		case 1:	return y;
		case 0:	return x;
	}
}

/*!
	The index operator.  If its argument is 0 it will return the
	x component of the vector.  If its argument is 1 it will return
	the y component of the vector.  Otherwise it will return the
	z component of the vector.

	\param[in] i Value indicating which component to return.

	\return 
	The vector component.
*/
inline float MFloatVector::operator[]( unsigned int i ) const
{
	switch (i)
	{
		default:
		case 2:	return z;
		case 1:	return y;
		case 0:	return x;
	}
}

/*!
	The cross product operator.

	\param[in] right Vector to take the cross product with.

	\return 
	The cross product result.
*/
inline MFloatVector MFloatVector::operator^ (const MFloatVector& right) const
{
	return MFloatVector(y*right.z - z*right.y,
						z*right.x - x*right.z,
						x*right.y - y*right.x);
}

/*!
	The in place multiplication operator.

	\param[in] scalar Scale factor.

	\return 
	A reference to the scaled vector.
*/
inline MFloatVector& MFloatVector::operator*= (float scalar)
{
	x *= scalar;
	y *= scalar;
	z *= scalar;
	return *this;
}

/*!
	The multiplication operator.

	\param[in] scalar Scale factor.

	\return 
	The scaled vector.
*/
inline MFloatVector MFloatVector::operator* ( float scalar ) const
{
	MFloatVector tmp(*this);
	tmp *= scalar;
	return tmp;
}

/*!
	The in place division operator.

	\param[in] scalar Division factor.

	\return 
	A reference to the scaled vector.
*/
inline MFloatVector& MFloatVector::operator/= (float scalar)
{
	x /= scalar;
	y /= scalar;
	z /= scalar;
	return *this;
}

/*!
	The division operator.

	\param[in] scalar Division factor.

	\return 
	The scaled vector.
*/
inline MFloatVector MFloatVector::operator/ ( float scalar ) const
{
	MFloatVector tmp(*this);
	tmp /= scalar;
	return tmp;
}

/*!
	The vector subtraction operator.

	\param[in] other Vector to substract.

	\return 
	The resulting vector.
*/
inline MFloatVector MFloatVector::operator- (const MFloatVector& other) const
{
	return MFloatVector(x-other.x, y-other.y, z-other.z);
}

/*!
	The vector addition operator.

	\param[in] other Vector to add.

	\return 
	The resulting vector.
*/
inline MFloatVector MFloatVector::operator+ (const MFloatVector& other) const
{
	return MFloatVector(x+other.x, y+other.y, z+other.z);
}

/*!
	The in place vector addition operator.

	\param[in] other Vector to add.

	\return 
	A reference to the resulting vector.
*/
inline MFloatVector& MFloatVector::operator+= (const MFloatVector& other)
{
	x += other.x;
	y += other.y;
	z += other.z;
	return *this;
}

/*!
	The in place vector subtraction operator.

	\param[in] other Vector to substract.

	\return 
	A reference to the resulting vector.
*/
inline MFloatVector& MFloatVector::operator-= (const MFloatVector& other)
{
	x -= other.x;
	y -= other.y;
	z -= other.z;
	return *this;
}

/*!
	The unary minus operator.  Negates the value of each of the
	x, y, and z components of the vector.

	\return 
	The resulting vector.
*/
inline MFloatVector MFloatVector::operator- () const
{
	return MFloatVector(-x,-y,-z);
}

/*!
	The dot product operator.

	\param[in] right Vector take the dot product with.

	\return 
	Dot product value.
*/
inline float MFloatVector::operator* (const MFloatVector& right) const
{
	return (x*right.x + y*right.y + z*right.z);
}

/*!
	Extracts the x, y, and z components of the vector and places
	them in elements 0, 1, and 2 of the float array passed.

	\param[out] d The array of 3 floats into which the results are placed.

	\return
	MS::kSuccess if d is a non-zero pointer and MS::kFailure otherwise.
*/
inline MStatus MFloatVector::get( float d[3] ) const
{
	if(d != NULL)
	{
		d[0] = x;
		d[1] = y;
		d[2] = z;
		return MStatus::kSuccess ;
	}
	return MStatus::kFailure;
}

/*!
	Performs an in place normalization of the vector

	\return
	Always returns MS::kSuccess.
*/
inline MStatus MFloatVector::normalize()
{
	float lensq = x*x + y*y + z*z;
	if(lensq>1e-20) {
		float factor = 1.0f / sqrtf(lensq);
		x *= factor;
		y *= factor;
		z *= factor;
	}
	return MStatus::kSuccess;
}

/*!
	Computes a unit vector aligned to the vector.
	\return 
	The unit vector.
*/
inline MFloatVector MFloatVector::normal() const
{
	MFloatVector tmp(*this);
	tmp.normalize();
	return tmp;
}

/*!
	\return The length of the vector.
*/
inline float MFloatVector::length() const
{
	return sqrtf(x*x+y*y+z*z);
}

/*!
	The vector equality operator.  This returns true if all three
	of the x, y, and z components are identical.

	\param[in] other Vector to compare against.

	\return
	Bool true if the vectors are identical and false otherwise.
*/
inline bool MFloatVector::operator== (const MFloatVector& other) const
{
	return (x == other.x && y == other.y && z == other.z);
}

/*!
	The vector inequality operator.  This returns false if all three
	of the x, y, and z components are identical.

	\param[in] other Vector to compare against.

	\return
	Bool false if the vectors are identical and true otherwise.
*/
inline bool MFloatVector::operator!= (const MFloatVector& other) const
{
	return !(*this == other);
}

#if ! defined(SWIG)

/*!
	The multiplication operator that allows the scalar value
	to preceed the vector.

	\param[in] scalar multiplication factor.
	\param[in] other Vector to scale.

	\return
	Scaled vector.
*/
inline MFloatVector operator * (int scalar, const MFloatVector& other)
{
	return float(scalar) * other;
}

/*!
	The multiplication operator that allows the scalar value
	to preceed the vector.

	\param[in] scalar multiplication factor.
	\param[in] other Vector to scale.

	\return
	Scaled vector.
*/
inline MFloatVector operator * (short scalar, const MFloatVector& other)
{
	return float(scalar) * other;
}

/*!
	The multiplication operator that allows the scalar value
	to preceed the vector.

	\param[in] scalar multiplication factor.
	\param[in] other Vector to scale.

	\return
	Scaled vector.
*/
inline MFloatVector operator * (unsigned int scalar, const MFloatVector& other)
{
	return float(scalar) * other;
}

/*!
	The multiplication operator that allows the scalar value
	to preceed the vector.

	\param[in] scalar multiplication factor.
	\param[in] other Vector to scale.

	\return
	Scaled vector.
*/
inline MFloatVector operator * (unsigned short scalar, const MFloatVector& other)
{
	return float(scalar) * other;
}

/*!
	The multiplication operator that allows the scalar value
	to preceed the vector.

	\param[in] scalar multiplication factor.
	\param[in] other Vector to scale.

	\return
	Scaled vector.
*/
inline MFloatVector operator * (float scalar, const MFloatVector& other)
{
	return MFloatVector(scalar*other.x, scalar*other.y, scalar*other.z);
}

/*!
	The multiplication operator that allows the scalar value
	to preceed the vector.

	\param[in] scalar multiplication factor.
	\param[in] other Vector to scale.

	\return
	Scaled vector.
*/
inline MFloatVector operator * (double scalar, const MFloatVector& other)
{
	return float(scalar) * other;
}
#endif // ! defined(SWIG)

#endif /* __cplusplus */
#endif /* _MFloatVector */