Differential D2716 Diff 9135 extern/audaspace/include/util/Math3D.h

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extern/audaspace/include/util/Math3D.h

This file was moved from intern/audaspace/intern/AUD_3DMath.h.

	/*	/*******************************************************************************
	* *** BEGIN GPL LICENSE BLOCK ***	* Copyright 2009-2016 Jörg Müller
	*	*
	* Copyright 2009-2011 Jörg Hermann Müller	* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
	*	*
	* This file is part of AudaSpace.	* http://www.apache.org/licenses/LICENSE-2.0
	*	*
	* Audaspace is free software; you can redistribute it and/or modify	* Unless required by applicable law or agreed to in writing, software
	* it under the terms of the GNU General Public License as published by	* distributed under the License is distributed on an "AS IS" BASIS,
	* the Free Software Foundation; either version 2 of the License, or	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* (at your option) any later version.	* See the License for the specific language governing permissions and
	*	* limitations under the License.
	* AudaSpace 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 Audaspace; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
	*
	* *** END GPL LICENSE BLOCK ***
	*/

	/** \file audaspace/intern/AUD_3DMath.h	#pragma once
	* \ingroup audaspaceintern
	*/

		/**
		* @file Math3D.h
		* @ingroup util
		* Defines the Vector3 and Quaternion classes.
		*/

	#ifndef __AUD_3DMATH_H__	#include "Audaspace.h"
	#define __AUD_3DMATH_H__

	#include <cmath>	#include <cmath>
	#include <cstring>	#include <cstring>

		AUD_NAMESPACE_BEGIN

	/**	/**
	* This class represents a 3 dimensional vector.	* This class represents a 3 dimensional vector.
	*/	*/
	class AUD_Vector3	class AUD_API Vector3
	{	{
	private:	private:
	/**	/**
Context not available.
	* \param y The y component.	* \param y The y component.
	* \param z The z component.	* \param z The z component.
	*/	*/
	inline AUD_Vector3(float x = 0, float y = 0, float z = 0) :	inline Vector3(float x = 0, float y = 0, float z = 0) :
	m_x(x), m_y(y), m_z(z)	m_x(x), m_y(y), m_z(z)
	{	{
	}	}
Context not available.
	*/	*/
	inline void get(float* destination) const	inline void get(float* destination) const
	{	{
	memcpy(destination, m_v, sizeof(m_v));	std::memcpy(destination, m_v, sizeof(m_v));
	}	}

	/**	/**
Context not available.
	*/	*/
	inline float length() const	inline float length() const
	{	{
	return sqrt(m_xm_x + m_ym_y + m_z*m_z);	return std::sqrt(m_xm_x + m_ym_y + m_z*m_z);
	}	}

	/**	/**
Context not available.
	* \param op The second operand.	* \param op The second operand.
	* \return The cross product of the two vectors.	* \return The cross product of the two vectors.
	*/	*/
	inline AUD_Vector3 cross(const AUD_Vector3& op) const	inline Vector3 cross(const Vector3& op) const
	{	{
	return AUD_Vector3(m_y * op.m_z - m_z * op.m_y,	return Vector3(m_y * op.m_z - m_z * op.m_y,
	m_z * op.m_x - m_x * op.m_z,	m_z * op.m_x - m_x * op.m_z,
	m_x * op.m_y - m_y * op.m_x);	m_x * op.m_y - m_y * op.m_x);
	}	}

	/**	/**
Context not available.
	* \param op The second operand.	* \param op The second operand.
	* \return The dot product of the two vectors.	* \return The dot product of the two vectors.
	*/	*/
	inline float operator*(const AUD_Vector3& op) const	inline float operator*(const Vector3& op) const
	{	{
	return m_x * op.m_x + m_y * op.m_y + m_z * op.m_z;	return m_x * op.m_x + m_y * op.m_y + m_z * op.m_z;
	}	}
Context not available.
	* \param op The second operand.	* \param op The second operand.
	* \return The scaled vector.	* \return The scaled vector.
	*/	*/
	inline AUD_Vector3 operator*(const float& op) const	inline Vector3 operator*(const float& op) const
	{	{
	return AUD_Vector3(m_x * op, m_y * op, m_z * op);	return Vector3(m_x * op, m_y * op, m_z * op);
	}	}

	/**	/**
Context not available.
	* \param op The second operand.	* \param op The second operand.
	* \return The sum vector.	* \return The sum vector.
	*/	*/
	inline AUD_Vector3 operator+(const AUD_Vector3& op) const	inline Vector3 operator+(const Vector3& op) const
	{	{
	return AUD_Vector3(m_x + op.m_x, m_y + op.m_y, m_z + op.m_z);	return Vector3(m_x + op.m_x, m_y + op.m_y, m_z + op.m_z);
	}	}

	/**	/**
Context not available.
	* \param op The second operand.	* \param op The second operand.
	* \return The difference vector.	* \return The difference vector.
	*/	*/
	inline AUD_Vector3 operator-(const AUD_Vector3& op) const	inline Vector3 operator-(const Vector3& op) const
	{	{
	return AUD_Vector3(m_x - op.m_x, m_y - op.m_y, m_z - op.m_z);	return Vector3(m_x - op.m_x, m_y - op.m_y, m_z - op.m_z);
	}	}

	/**	/**
	* Negates the vector.	* Negates the vector.
	* \return The vector facing in the opposite direction.	* \return The vector facing in the opposite direction.
	*/	*/
	inline AUD_Vector3 operator-() const	inline Vector3 operator-() const
	{	{
	return AUD_Vector3(-m_x, -m_y, -m_z);	return Vector3(-m_x, -m_y, -m_z);
	}	}

	/**	/**
Context not available.
	* \param op The second operand.	* \param op The second operand.
	* \return The difference vector.	* \return The difference vector.
	*/	*/
	inline AUD_Vector3& operator-=(const AUD_Vector3& op)	inline Vector3& operator-=(const Vector3& op)
	{	{
	m_x -= op.m_x;	m_x -= op.m_x;
	m_y -= op.m_y;	m_y -= op.m_y;
Context not available.
	/**	/**
	* This class represents a quaternion used for 3D rotations.	* This class represents a quaternion used for 3D rotations.
	*/	*/
	class AUD_Quaternion	class AUD_API Quaternion
	{	{
	private:	private:
	/**	/**
Context not available.
	* \param y The y component.	* \param y The y component.
	* \param z The z component.	* \param z The z component.
	*/	*/
	inline AUD_Quaternion(float w = 1, float x = 0, float y = 0, float z = 0) :	inline Quaternion(float w = 1, float x = 0, float y = 0, float z = 0) :
	m_w(w), m_x(x), m_y(y), m_z(z)	m_w(w), m_x(x), m_y(y), m_z(z)
	{	{
	}	}
Context not available.
	*/	*/
	inline void get(float* destination) const	inline void get(float* destination) const
	{	{
	memcpy(destination, m_v, sizeof(m_v));	std::memcpy(destination, m_v, sizeof(m_v));
	}	}

	/**	/**
Context not available.
	* z axis vector.	* z axis vector.
	* \return The negative z axis vector.	* \return The negative z axis vector.
	*/	*/
	inline AUD_Vector3 getLookAt() const	inline Vector3 getLookAt() const
	{	{
	return AUD_Vector3(-2 * (m_w * m_y + m_x * m_z),	return Vector3(-2 * (m_w * m_y + m_x * m_z),
	2 * (m_x * m_w - m_z * m_y),	2 * (m_x * m_w - m_z * m_y),
	2 * (m_x * m_x + m_y * m_y) - 1);	2 * (m_x * m_x + m_y * m_y) - 1);
	}	}

	/**	/**
Context not available.
	* vector.	* vector.
	* \return The y axis vector.	* \return The y axis vector.
	*/	*/
	inline AUD_Vector3 getUp() const	inline Vector3 getUp() const
	{	{
	return AUD_Vector3(2 * (m_x * m_y - m_w * m_z),	return Vector3(2 * (m_x * m_y - m_w * m_z),
	1 - 2 * (m_x * m_x + m_z * m_z),	1 - 2 * (m_x * m_x + m_z * m_z),
	2 * (m_w * m_x + m_y * m_z));	2 * (m_w * m_x + m_y * m_z));
	}	}
	};	};

	#endif //__AUD_3DMATH_H__	AUD_NAMESPACE_END
Context not available.