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gtkradiant/libs/math/vector.h
spog ecd25e066c gcc fix 
git-svn-id: svn://svn.icculus.org/gtkradiant/GtkRadiant/trunk@74 8a3a26a2-13c4-0310-b231-cf6edde360e5
2006-05-29 16:23:39 +00:00

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/*
Copyright (C) 2001-2006, William Joseph.
All Rights Reserved.
This file is part of GtkRadiant.
GtkRadiant 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.
GtkRadiant 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 GtkRadiant; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#if !defined(INCLUDED_MATH_VECTOR_H)
#define INCLUDED_MATH_VECTOR_H
/// \file
/// \brief Vector data types and related operations.
#include "generic/vector.h"
#if defined (_MSC_VER)
inline int lrint (double flt)
{
int i;
_asm
{
fld flt
fistp i
};
return i;
}
#elif defined(__FreeBSD__)
inline int lrint(double f)
{
return static_cast<int>(f + 0.5);
}
#elif defined(__GNUC__)
// lrint is part of ISO C99
#define _ISOC9X_SOURCE 1
#define _ISOC99_SOURCE 1
#define __USE_ISOC9X 1
#define __USE_ISOC99 1
#else
#error "unsupported platform"
#endif
#include <cmath>
#include <float.h>
#include <algorithm>
//#include "debugging/debugging.h"
/// \brief Returns true if \p self is equal to other \p other within \p epsilon.
template<typename Element, typename OtherElement>
inline bool float_equal_epsilon(const Element& self, const OtherElement& other, const Element& epsilon)
{
return fabs(other - self) < epsilon;
}
/// \brief Returns the value midway between \p self and \p other.
template<typename Element>
inline Element float_mid(const Element& self, const Element& other)
{
return Element((self + other) * 0.5);
}
/// \brief Returns \p f rounded to the nearest integer. Note that this is not the same behaviour as casting from float to int.
template<typename Element>
inline int float_to_integer(const Element& f)
{
return lrint(f);
}
/// \brief Returns \p f rounded to the nearest multiple of \p snap.
template<typename Element, typename OtherElement>
inline Element float_snapped(const Element& f, const OtherElement& snap)
{
return Element(float_to_integer(f / snap) * snap);
}
/// \brief Returns true if \p f has no decimal fraction part.
template<typename Element>
inline bool float_is_integer(const Element& f)
{
return f == Element(float_to_integer(f));
}
/// \brief Returns \p self modulated by the range [0, \p modulus)
/// \p self must be in the range [\p -modulus, \p modulus)
template<typename Element, typename ModulusElement>
inline Element float_mod_range(const Element& self, const ModulusElement& modulus)
{
return Element((self < 0.0) ? self + modulus : self);
}
/// \brief Returns \p self modulated by the range [0, \p modulus)
template<typename Element, typename ModulusElement>
inline Element float_mod(const Element& self, const ModulusElement& modulus)
{
return float_mod_range(Element(fmod(static_cast<double>(self), static_cast<double>(modulus))), modulus);
}
template<typename Element, typename OtherElement>
inline BasicVector2<Element> vector2_added(const BasicVector2<Element>& self, const BasicVector2<OtherElement>& other)
{
return BasicVector2<Element>(
Element(self.x() + other.x()),
Element(self.y() + other.y())
);
}
template<typename Element, typename OtherElement>
inline BasicVector2<Element> operator+(const BasicVector2<Element>& self, const BasicVector2<OtherElement>& other)
{
return vector2_added(self, other);
}
template<typename Element, typename OtherElement>
inline void vector2_add(BasicVector2<Element>& self, const BasicVector2<OtherElement>& other)
{
self.x() += Element(other.x());
self.y() += Element(other.y());
}
template<typename Element, typename OtherElement>
inline void operator+=(BasicVector2<Element>& self, const BasicVector2<OtherElement>& other)
{
vector2_add(self, other);
}
template<typename Element, typename OtherElement>
inline BasicVector2<Element> vector2_subtracted(const BasicVector2<Element>& self, const BasicVector2<OtherElement>& other)
{
return BasicVector2<Element>(
Element(self.x() - other.x()),
Element(self.y() - other.y())
);
}
template<typename Element, typename OtherElement>
inline BasicVector2<Element> operator-(const BasicVector2<Element>& self, const BasicVector2<OtherElement>& other)
{
return vector2_subtracted(self, other);
}
template<typename Element, typename OtherElement>
inline void vector2_subtract(BasicVector2<Element>& self, const BasicVector2<OtherElement>& other)
{
self.x() -= Element(other.x());
self.y() -= lement(other.y());
}
template<typename Element, typename OtherElement>
inline void operator-=(BasicVector2<Element>& self, const BasicVector2<OtherElement>& other)
{
vector2_subtract(self, other);
}
template<typename Element, typename OtherElement>
inline BasicVector2<Element> vector2_scaled(const BasicVector2<Element>& self, OtherElement other)
{
return BasicVector2<Element>(
Element(self.x() * other),
Element(self.y() * other)
);
}
template<typename Element, typename OtherElement>
inline BasicVector2<Element> operator*(const BasicVector2<Element>& self, OtherElement other)
{
return vector2_scaled(self, other);
}
template<typename Element, typename OtherElement>
inline void vector2_scale(BasicVector2<Element>& self, OtherElement other)
{
self.x() *= Element(other);
self.y() *= Element(other);
}
template<typename Element, typename OtherElement>
inline void operator*=(BasicVector2<Element>& self, OtherElement other)
{
vector2_scale(self, other);
}
template<typename Element, typename OtherElement>
inline BasicVector2<Element> vector2_scaled(const BasicVector2<Element>& self, const BasicVector2<OtherElement>& other)
{
return BasicVector2<Element>(
Element(self.x() * other.x()),
Element(self.y() * other.y())
);
}
template<typename Element, typename OtherElement>
inline BasicVector2<Element> operator*(const BasicVector2<Element>& self, const BasicVector2<OtherElement>& other)
{
return vector2_scaled(self, other);
}
template<typename Element, typename OtherElement>
inline void vector2_scale(BasicVector2<Element>& self, const BasicVector2<OtherElement>& other)
{
self.x() *= Element(other.x());
self.y() *= Element(other.y());
}
template<typename Element, typename OtherElement>
inline void operator*=(BasicVector2<Element>& self, const BasicVector2<OtherElement>& other)
{
vector2_scale(self, other);
}
template<typename Element, typename OtherElement>
inline BasicVector2<Element> vector2_divided(const BasicVector2<Element>& self, const BasicVector2<OtherElement>& other)
{
return BasicVector2<Element>(
Element(self.x() / other.x()),
Element(self.y() / other.y())
);
}
template<typename Element, typename OtherElement>
inline BasicVector2<Element> operator/(const BasicVector2<Element>& self, const BasicVector2<OtherElement>& other)
{
return vector2_divided(self, other);
}
template<typename Element, typename OtherElement>
inline void vector2_divide(BasicVector2<Element>& self, const BasicVector2<OtherElement>& other)
{
self.x() /= Element(other.x());
self.y() /= Element(other.y());
}
template<typename Element, typename OtherElement>
inline void operator/=(BasicVector2<Element>& self, const BasicVector2<OtherElement>& other)
{
vector2_divide(self, other);
}
template<typename Element, typename OtherElement>
inline BasicVector2<Element> vector2_divided(const BasicVector2<Element>& self, OtherElement other)
{
return BasicVector2<Element>(
Element(self.x() / other),
Element(self.y() / other)
);
}
template<typename Element, typename OtherElement>
inline BasicVector2<Element> operator/(const BasicVector2<Element>& self, OtherElement other)
{
return vector2_divided(self, other);
}
template<typename Element, typename OtherElement>
inline void vector2_divide(BasicVector2<Element>& self, OtherElement other)
{
self.x() /= Element(other);
self.y() /= Element(other);
}
template<typename Element, typename OtherElement>
inline void operator/=(BasicVector2<Element>& self, OtherElement other)
{
vector2_divide(self, other);
}
template<typename Element, typename OtherElement>
inline double vector2_dot(const BasicVector2<Element>& self, const BasicVector2<OtherElement>& other)
{
return self.x() * other.x() + self.y() * other.y();
}
template<typename Element>
inline double vector2_length_squared(const BasicVector2<Element>& self)
{
return vector2_dot(self, self);
}
template<typename Element>
inline double vector2_length(const BasicVector2<Element>& self)
{
return sqrt(vector2_length_squared(self));
}
template<typename Element, typename OtherElement>
inline double vector2_cross(const BasicVector2<Element>& self, const BasicVector2<OtherElement>& other)
{
return self.x() * other.y() - self.y() * other.x();
}
const Vector3 g_vector3_identity(0, 0, 0);
const Vector3 g_vector3_max = Vector3(FLT_MAX, FLT_MAX, FLT_MAX);
const Vector3 g_vector3_axis_x(1, 0, 0);
const Vector3 g_vector3_axis_y(0, 1, 0);
const Vector3 g_vector3_axis_z(0, 0, 1);
const Vector3 g_vector3_axes[3] = { g_vector3_axis_x, g_vector3_axis_y, g_vector3_axis_z };
template<typename Element, typename OtherElement>
inline void vector3_swap(BasicVector3<Element>& self, BasicVector3<OtherElement>& other)
{
std::swap(self.x(), other.x());
std::swap(self.y(), other.y());
std::swap(self.z(), other.z());
}
template<typename Element, typename OtherElement>
inline bool vector3_equal(const BasicVector3<Element>& self, const BasicVector3<OtherElement>& other)
{
return self.x() == other.x() && self.y() == other.y() && self.z() == other.z();
}
template<typename Element, typename OtherElement>
inline bool operator==(const BasicVector3<Element>& self, const BasicVector3<OtherElement>& other)
{
return vector3_equal(self, other);
}
template<typename Element, typename OtherElement>
inline bool operator!=(const BasicVector3<Element>& self, const BasicVector3<OtherElement>& other)
{
return !vector3_equal(self, other);
}
template<typename Element, typename OtherElement, typename Epsilon>
inline bool vector3_equal_epsilon(const BasicVector3<Element>& self, const BasicVector3<OtherElement>& other, Epsilon epsilon)
{
return float_equal_epsilon(self.x(), other.x(), epsilon)
&& float_equal_epsilon(self.y(), other.y(), epsilon)
&& float_equal_epsilon(self.z(), other.z(), epsilon);
}
template<typename Element, typename OtherElement>
inline BasicVector3<Element> vector3_added(const BasicVector3<Element>& self, const BasicVector3<OtherElement>& other)
{
return BasicVector3<Element>(
Element(self.x() + other.x()),
Element(self.y() + other.y()),
Element(self.z() + other.z())
);
}
template<typename Element, typename OtherElement>
inline BasicVector3<Element> operator+(const BasicVector3<Element>& self, const BasicVector3<OtherElement>& other)
{
return vector3_added(self, other);
}
template<typename Element, typename OtherElement>
inline void vector3_add(BasicVector3<Element>& self, const BasicVector3<OtherElement>& other)
{
self.x() += static_cast<Element>(other.x());
self.y() += static_cast<Element>(other.y());
self.z() += static_cast<Element>(other.z());
}
template<typename Element, typename OtherElement>
inline void operator+=(BasicVector3<Element>& self, const BasicVector3<OtherElement>& other)
{
vector3_add(self, other);
}
template<typename Element, typename OtherElement>
inline BasicVector3<Element> vector3_subtracted(const BasicVector3<Element>& self, const BasicVector3<OtherElement>& other)
{
return BasicVector3<Element>(
Element(self.x() - other.x()),
Element(self.y() - other.y()),
Element(self.z() - other.z())
);
}
template<typename Element, typename OtherElement>
inline BasicVector3<Element> operator-(const BasicVector3<Element>& self, const BasicVector3<OtherElement>& other)
{
return vector3_subtracted(self, other);
}
template<typename Element, typename OtherElement>
inline void vector3_subtract(BasicVector3<Element>& self, const BasicVector3<OtherElement>& other)
{
self.x() -= static_cast<Element>(other.x());
self.y() -= static_cast<Element>(other.y());
self.z() -= static_cast<Element>(other.z());
}
template<typename Element, typename OtherElement>
inline void operator-=(BasicVector3<Element>& self, const BasicVector3<OtherElement>& other)
{
vector3_subtract(self, other);
}
template<typename Element, typename OtherElement>
inline BasicVector3<Element> vector3_scaled(const BasicVector3<Element>& self, const BasicVector3<OtherElement>& other)
{
return BasicVector3<Element>(
Element(self.x() * other.x()),
Element(self.y() * other.y()),
Element(self.z() * other.z())
);
}
template<typename Element, typename OtherElement>
inline BasicVector3<Element> operator*(const BasicVector3<Element>& self, const BasicVector3<OtherElement>& other)
{
return vector3_scaled(self, other);
}
template<typename Element, typename OtherElement>
inline void vector3_scale(BasicVector3<Element>& self, const BasicVector3<OtherElement>& other)
{
self.x() *= static_cast<Element>(other.x());
self.y() *= static_cast<Element>(other.y());
self.z() *= static_cast<Element>(other.z());
}
template<typename Element, typename OtherElement>
inline void operator*=(BasicVector3<Element>& self, const BasicVector3<OtherElement>& other)
{
vector3_scale(self, other);
}
template<typename Element, typename OtherElement>
inline BasicVector3<Element> vector3_scaled(const BasicVector3<Element>& self, const OtherElement& scale)
{
return BasicVector3<Element>(
Element(self.x() * scale),
Element(self.y() * scale),
Element(self.z() * scale)
);
}
template<typename Element, typename OtherElement>
inline BasicVector3<Element> operator*(const BasicVector3<Element>& self, const OtherElement& scale)
{
return vector3_scaled(self, scale);
}
template<typename Element, typename OtherElement>
inline void vector3_scale(BasicVector3<Element>& self, const OtherElement& scale)
{
self.x() *= static_cast<Element>(scale);
self.y() *= static_cast<Element>(scale);
self.z() *= static_cast<Element>(scale);
}
template<typename Element, typename OtherElement>
inline void operator*=(BasicVector3<Element>& self, const OtherElement& scale)
{
vector3_scale(self, scale);
}
template<typename Element, typename OtherElement>
inline BasicVector3<Element> vector3_divided(const BasicVector3<Element>& self, const BasicVector3<OtherElement>& other)
{
return BasicVector3<Element>(
Element(self.x() / other.x()),
Element(self.y() / other.y()),
Element(self.z() / other.z())
);
}
template<typename Element, typename OtherElement>
inline BasicVector3<Element> operator/(const BasicVector3<Element>& self, const BasicVector3<OtherElement>& other)
{
return vector3_divided(self, other);
}
template<typename Element, typename OtherElement>
inline void vector3_divide(BasicVector3<Element>& self, const BasicVector3<OtherElement>& other)
{
self.x() /= static_cast<Element>(other.x());
self.y() /= static_cast<Element>(other.y());
self.z() /= static_cast<Element>(other.z());
}
template<typename Element, typename OtherElement>
inline void operator/=(BasicVector3<Element>& self, const BasicVector3<OtherElement>& other)
{
vector3_divide(self, other);
}
template<typename Element, typename OtherElement>
inline BasicVector3<Element> vector3_divided(const BasicVector3<Element>& self, const OtherElement& divisor)
{
return BasicVector3<Element>(
Element(self.x() / divisor),
Element(self.y() / divisor),
Element(self.z() / divisor)
);
}
template<typename Element, typename OtherElement>
inline BasicVector3<Element> operator/(const BasicVector3<Element>& self, const OtherElement& divisor)
{
return vector3_divided(self, divisor);
}
template<typename Element, typename OtherElement>
inline void vector3_divide(BasicVector3<Element>& self, const OtherElement& divisor)
{
self.x() /= static_cast<Element>(divisor);
self.y() /= static_cast<Element>(divisor);
self.z() /= static_cast<Element>(divisor);
}
template<typename Element, typename OtherElement>
inline void operator/=(BasicVector3<Element>& self, const OtherElement& divisor)
{
vector3_divide(self, divisor);
}
template<typename Element, typename OtherElement>
inline double vector3_dot(const BasicVector3<Element>& self, const BasicVector3<OtherElement>& other)
{
return self.x() * other.x() + self.y() * other.y() + self.z() * other.z();
}
template<typename Element>
inline BasicVector3<Element> vector3_mid(const BasicVector3<Element>& begin, const BasicVector3<Element>& end)
{
return vector3_scaled(vector3_added(begin, end), 0.5);
}
template<typename Element, typename OtherElement>
inline BasicVector3<Element> vector3_cross(const BasicVector3<Element>& self, const BasicVector3<OtherElement>& other)
{
return BasicVector3<Element>(
Element(self.y() * other.z() - self.z() * other.y()),
Element(self.z() * other.x() - self.x() * other.z()),
Element(self.x() * other.y() - self.y() * other.x())
);
}
template<typename Element>
inline BasicVector3<Element> vector3_negated(const BasicVector3<Element>& self)
{
return BasicVector3<Element>(-self.x(), -self.y(), -self.z());
}
template<typename Element>
inline BasicVector3<Element> operator-(const BasicVector3<Element>& self)
{
return vector3_negated(self);
}
template<typename Element>
inline void vector3_negate(BasicVector3<Element>& self)
{
self = vector3_negated(self);
}
template<typename Element>
inline double vector3_length_squared(const BasicVector3<Element>& self)
{
return vector3_dot(self, self);
}
template<typename Element>
inline double vector3_length(const BasicVector3<Element>& self)
{
return sqrt(vector3_length_squared(self));
}
template<typename Element>
inline Element float_divided(Element f, Element other)
{
//ASSERT_MESSAGE(other != 0, "float_divided: invalid divisor");
return f / other;
}
template<typename Element>
inline BasicVector3<Element> vector3_normalised(const BasicVector3<Element>& self)
{
return vector3_scaled(self, float_divided(1.0, vector3_length(self)));
}
template<typename Element>
inline void vector3_normalise(BasicVector3<Element>& self)
{
self = vector3_normalised(self);
}
template<typename Element>
inline BasicVector3<Element> vector3_snapped(const BasicVector3<Element>& self)
{
return BasicVector3<Element>(
Element(float_to_integer(self.x())),
Element(float_to_integer(self.y())),
Element(float_to_integer(self.z()))
);
}
template<typename Element>
inline void vector3_snap(BasicVector3<Element>& self)
{
self = vector3_snapped(self);
}
template<typename Element, typename OtherElement>
inline BasicVector3<Element> vector3_snapped(const BasicVector3<Element>& self, const OtherElement& snap)
{
return BasicVector3<Element>(
Element(float_snapped(self.x(), snap)),
Element(float_snapped(self.y(), snap)),
Element(float_snapped(self.z(), snap))
);
}
template<typename Element, typename OtherElement>
inline void vector3_snap(BasicVector3<Element>& self, const OtherElement& snap)
{
self = vector3_snapped(self, snap);
}
inline Vector3 vector3_for_spherical(double theta, double phi)
{
return Vector3(
static_cast<float>(cos(theta) * cos(phi)),
static_cast<float>(sin(theta) * cos(phi)),
static_cast<float>(sin(phi))
);
}
template<typename Element, typename OtherElement>
inline bool vector4_equal(const BasicVector4<Element>& self, const BasicVector4<OtherElement>& other)
{
return self.x() == other.x() && self.y() == other.y() && self.z() == other.z() && self.w() == other.w();
}
template<typename Element, typename OtherElement>
inline bool operator==(const BasicVector4<Element>& self, const BasicVector4<OtherElement>& other)
{
return vector4_equal(self, other);
}
template<typename Element, typename OtherElement>
inline bool operator!=(const BasicVector4<Element>& self, const BasicVector4<OtherElement>& other)
{
return !vector4_equal(self, other);
}
template<typename Element, typename OtherElement>
inline bool vector4_equal_epsilon(const BasicVector4<Element>& self, const BasicVector4<OtherElement>& other, Element epsilon)
{
return float_equal_epsilon(self.x(), other.x(), epsilon)
&& float_equal_epsilon(self.y(), other.y(), epsilon)
&& float_equal_epsilon(self.z(), other.z(), epsilon)
&& float_equal_epsilon(self.w(), other.w(), epsilon);
}
template<typename Element, typename OtherElement>
inline BasicVector4<Element> vector4_added(const BasicVector4<Element>& self, const BasicVector4<OtherElement>& other)
{
return BasicVector4<Element>(
float(self.x() + other.x()),
float(self.y() + other.y()),
float(self.z() + other.z()),
float(self.w() + other.w())
);
}
template<typename Element, typename OtherElement>
inline BasicVector4<Element> operator+(const BasicVector4<Element>& self, const BasicVector4<OtherElement>& other)
{
return vector4_added(self, other);
}
template<typename Element, typename OtherElement>
inline void vector4_add(BasicVector4<Element>& self, const BasicVector4<OtherElement>& other)
{
self.x() += static_cast<float>(other.x());
self.y() += static_cast<float>(other.y());
self.z() += static_cast<float>(other.z());
self.w() += static_cast<float>(other.w());
}
template<typename Element, typename OtherElement>
inline void operator+=(BasicVector4<Element>& self, const BasicVector4<OtherElement>& other)
{
vector4_add(self, other);
}
template<typename Element, typename OtherElement>
inline BasicVector4<Element> vector4_subtracted(const BasicVector4<Element>& self, const BasicVector4<OtherElement>& other)
{
return BasicVector4<Element>(
float(self.x() - other.x()),
float(self.y() - other.y()),
float(self.z() - other.z()),
float(self.w() - other.w())
);
}
template<typename Element, typename OtherElement>
inline BasicVector4<Element> operator-(const BasicVector4<Element>& self, const BasicVector4<OtherElement>& other)
{
return vector4_subtracted(self, other);
}
template<typename Element, typename OtherElement>
inline void vector4_subtract(BasicVector4<Element>& self, const BasicVector4<OtherElement>& other)
{
self.x() -= static_cast<float>(other.x());
self.y() -= static_cast<float>(other.y());
self.z() -= static_cast<float>(other.z());
self.w() -= static_cast<float>(other.w());
}
template<typename Element, typename OtherElement>
inline void operator-=(BasicVector4<Element>& self, const BasicVector4<OtherElement>& other)
{
vector4_subtract(self, other);
}
template<typename Element, typename OtherElement>
inline BasicVector4<Element> vector4_scaled(const BasicVector4<Element>& self, const BasicVector4<OtherElement>& other)
{
return BasicVector4<Element>(
float(self.x() * other.x()),
float(self.y() * other.y()),
float(self.z() * other.z()),
float(self.w() * other.w())
);
}
template<typename Element, typename OtherElement>
inline BasicVector4<Element> operator*(const BasicVector4<Element>& self, const BasicVector4<OtherElement>& other)
{
return vector4_scaled(self, other);
}
template<typename Element, typename OtherElement>
inline void vector4_scale(BasicVector4<Element>& self, const BasicVector4<OtherElement>& other)
{
self.x() *= static_cast<float>(other.x());
self.y() *= static_cast<float>(other.y());
self.z() *= static_cast<float>(other.z());
self.w() *= static_cast<float>(other.w());
}
template<typename Element, typename OtherElement>
inline void operator*=(BasicVector4<Element>& self, const BasicVector4<OtherElement>& other)
{
vector4_scale(self, other);
}
template<typename Element, typename OtherElement>
inline BasicVector4<Element> vector4_scaled(const BasicVector4<Element>& self, OtherElement scale)
{
return BasicVector4<Element>(
float(self.x() * scale),
float(self.y() * scale),
float(self.z() * scale),
float(self.w() * scale)
);
}
template<typename Element, typename OtherElement>
inline BasicVector4<Element> operator*(const BasicVector4<Element>& self, OtherElement scale)
{
return vector4_scaled(self, scale);
}
template<typename Element, typename OtherElement>
inline void vector4_scale(BasicVector4<Element>& self, OtherElement scale)
{
self.x() *= static_cast<float>(scale);
self.y() *= static_cast<float>(scale);
self.z() *= static_cast<float>(scale);
self.w() *= static_cast<float>(scale);
}
template<typename Element, typename OtherElement>
inline void operator*=(BasicVector4<Element>& self, OtherElement scale)
{
vector4_scale(self, scale);
}
template<typename Element, typename OtherElement>
inline BasicVector4<Element> vector4_divided(const BasicVector4<Element>& self, OtherElement divisor)
{
return BasicVector4<Element>(
float(self.x() / divisor),
float(self.y() / divisor),
float(self.z() / divisor),
float(self.w() / divisor)
);
}
template<typename Element, typename OtherElement>
inline BasicVector4<Element> operator/(const BasicVector4<Element>& self, OtherElement divisor)
{
return vector4_divided(self, divisor);
}
template<typename Element, typename OtherElement>
inline void vector4_divide(BasicVector4<Element>& self, OtherElement divisor)
{
self.x() /= divisor;
self.y() /= divisor;
self.z() /= divisor;
self.w() /= divisor;
}
template<typename Element, typename OtherElement>
inline void operator/=(BasicVector4<Element>& self, OtherElement divisor)
{
vector4_divide(self, divisor);
}
template<typename Element, typename OtherElement>
inline double vector4_dot(const BasicVector4<Element>& self, const BasicVector4<OtherElement>& other)
{
return self.x() * other.x() + self.y() * other.y() + self.z() * other.z() + self.w() * other.w();
}
template<typename Element>
inline BasicVector3<Element> vector4_projected(const BasicVector4<Element>& self)
{
return vector3_scaled(vector4_to_vector3(self), 1.0 / self[3]);
}
#endif
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