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voxel-raycaster/include/Vector4.hpp

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////////////////////////////////////////////////////////////
//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2016 Laurent Gomila (laurent@sfml-dev.org)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
// you must not claim that you wrote the original software.
// If you use this software in a product, an acknowledgment
// in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
// and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//
////////////////////////////////////////////////////////////
#ifndef SFML_VECTOR4_H
#define SFML_VECTOR4_H
namespace sf {
////////////////////////////////////////////////////////////
/// \brief Utility template class for manipulating
/// 2-dimensional vectors
///
////////////////////////////////////////////////////////////
template <typename T>
class Vector4 {
public:
////////////////////////////////////////////////////////////
/// \brief Default constructor
///
/// Creates a Vector4(0, 0).
///
////////////////////////////////////////////////////////////
Vector4();
////////////////////////////////////////////////////////////
/// \brief Construct the vector from its coordinates
///
/// \param X X coordinate
/// \param Y Y coordinate
///
////////////////////////////////////////////////////////////
Vector4(T X, T Y, T Z, T W);
////////////////////////////////////////////////////////////
/// \brief Construct the vector from another type of vector
///
/// This constructor doesn't replace the copy constructor,
/// it's called only when U != T.
/// A call to this constructor will fail to compile if U
/// is not convertible to T.
///
/// \param vector Vector to convert
///
////////////////////////////////////////////////////////////
template <typename U>
explicit Vector4(const Vector4<U>& vector);
////////////////////////////////////////////////////////////
// Member data
////////////////////////////////////////////////////////////
T x; ///< X coordinate of the vector
T y; ///< Y coordinate of the vector
T z; ///< Z coordinate of the vector
T w; ///< W coordinate of the vector
};
////////////////////////////////////////////////////////////
/// \relates Vector4
/// \brief Overload of unary operator -
///
/// \param right Vector to negate
///
/// \return Memberwise opposite of the vector
///
////////////////////////////////////////////////////////////
template <typename T>
Vector4<T> operator -(const Vector4<T>& right);
////////////////////////////////////////////////////////////
/// \relates Vector4
/// \brief Overload of binary operator +=
///
/// This operator performs a memberwise addition of both vectors,
/// and assigns the result to \a left.
///
/// \param left Left operand (a vector)
/// \param right Right operand (a vector)
///
/// \return Reference to \a left
///
////////////////////////////////////////////////////////////
template <typename T>
Vector4<T>& operator +=(Vector4<T>& left, const Vector4<T>& right);
////////////////////////////////////////////////////////////
/// \relates Vector4
/// \brief Overload of binary operator -=
///
/// This operator performs a memberwise subtraction of both vectors,
/// and assigns the result to \a left.
///
/// \param left Left operand (a vector)
/// \param right Right operand (a vector)
///
/// \return Reference to \a left
///
////////////////////////////////////////////////////////////
template <typename T>
Vector4<T>& operator -=(Vector4<T>& left, const Vector4<T>& right);
////////////////////////////////////////////////////////////
/// \relates Vector4
/// \brief Overload of binary operator +
///
/// \param left Left operand (a vector)
/// \param right Right operand (a vector)
///
/// \return Memberwise addition of both vectors
///
////////////////////////////////////////////////////////////
template <typename T>
Vector4<T> operator +(const Vector4<T>& left, const Vector4<T>& right);
////////////////////////////////////////////////////////////
/// \relates Vector4
/// \brief Overload of binary operator -
///
/// \param left Left operand (a vector)
/// \param right Right operand (a vector)
///
/// \return Memberwise subtraction of both vectors
///
////////////////////////////////////////////////////////////
template <typename T>
Vector4<T> operator -(const Vector4<T>& left, const Vector4<T>& right);
////////////////////////////////////////////////////////////
/// \relates Vector4
/// \brief Overload of binary operator *
///
/// \param left Left operand (a vector)
/// \param right Right operand (a scalar value)
///
/// \return Memberwise multiplication by \a right
///
////////////////////////////////////////////////////////////
template <typename T>
Vector4<T> operator *(const Vector4<T>& left, T right);
////////////////////////////////////////////////////////////
/// \relates Vector4
/// \brief Overload of binary operator *
///
/// \param left Left operand (a scalar value)
/// \param right Right operand (a vector)
///
/// \return Memberwise multiplication by \a left
///
////////////////////////////////////////////////////////////
template <typename T>
Vector4<T> operator *(T left, const Vector4<T>& right);
////////////////////////////////////////////////////////////
/// \relates Vector4
/// \brief Overload of binary operator *=
///
/// This operator performs a memberwise multiplication by \a right,
/// and assigns the result to \a left.
///
/// \param left Left operand (a vector)
/// \param right Right operand (a scalar value)
///
/// \return Reference to \a left
///
////////////////////////////////////////////////////////////
template <typename T>
Vector4<T>& operator *=(Vector4<T>& left, T right);
////////////////////////////////////////////////////////////
/// \relates Vector4
/// \brief Overload of binary operator /
///
/// \param left Left operand (a vector)
/// \param right Right operand (a scalar value)
///
/// \return Memberwise division by \a right
///
////////////////////////////////////////////////////////////
template <typename T>
Vector4<T> operator /(const Vector4<T>& left, T right);
////////////////////////////////////////////////////////////
/// \relates Vector4
/// \brief Overload of binary operator /=
///
/// This operator performs a memberwise division by \a right,
/// and assigns the result to \a left.
///
/// \param left Left operand (a vector)
/// \param right Right operand (a scalar value)
///
/// \return Reference to \a left
///
////////////////////////////////////////////////////////////
template <typename T>
Vector4<T>& operator /=(Vector4<T>& left, T right);
////////////////////////////////////////////////////////////
/// \relates Vector4
/// \brief Overload of binary operator ==
///
/// This operator compares strict equality between two vectors.
///
/// \param left Left operand (a vector)
/// \param right Right operand (a vector)
///
/// \return True if \a left is equal to \a right
///
////////////////////////////////////////////////////////////
template <typename T>
bool operator ==(const Vector4<T>& left, const Vector4<T>& right);
////////////////////////////////////////////////////////////
/// \relates Vector4
/// \brief Overload of binary operator !=
///
/// This operator compares strict difference between two vectors.
///
/// \param left Left operand (a vector)
/// \param right Right operand (a vector)
///
/// \return True if \a left is not equal to \a right
///
////////////////////////////////////////////////////////////
template <typename T>
bool operator !=(const Vector4<T>& left, const Vector4<T>& right);
////////////////////////////////////////////////////////////
template <typename T>
inline Vector4<T>::Vector4() :
x(0),
y(0),
z(0),
w(0){
}
////////////////////////////////////////////////////////////
template <typename T>
inline Vector4<T>::Vector4(T X, T Y, T Z, T W) :
x(X),
y(Y),
z(Z),
w(W) {
}
////////////////////////////////////////////////////////////
template <typename T>
template <typename U>
inline Vector4<T>::Vector4(const Vector4<U>& vector) :
x(static_cast<T>(vector.x)),
y(static_cast<T>(vector.y)),
z(static_cast<T>(vector.z)),
w(static_cast<T>(vector.w)) {
}
////////////////////////////////////////////////////////////
template <typename T>
inline Vector4<T> operator -(const Vector4<T>& right) {
return Vector4<T>(
-right.x,
-right.y,
-right.z,
-right.w
);
}
////////////////////////////////////////////////////////////
template <typename T>
inline Vector4<T>& operator +=(Vector4<T>& left, const Vector4<T>& right) {
left.x += right.x;
left.y += right.y;
left.z += right.z;
left.w += right.w;
return left;
}
////////////////////////////////////////////////////////////
template <typename T>
inline Vector4<T>& operator -=(Vector4<T>& left, const Vector4<T>& right) {
left.x -= right.x;
left.y -= right.y;
left.z -= right.z;
left.w -= right.w;
return left;
}
////////////////////////////////////////////////////////////
template <typename T>
inline Vector4<T> operator +(const Vector4<T>& left, const Vector4<T>& right) {
return Vector4<T>(
left.x + right.x,
left.y + right.y,
left.z + right.z,
left.w + right.w
);
}
////////////////////////////////////////////////////////////
template <typename T>
inline Vector4<T> operator -(const Vector4<T>& left, const Vector4<T>& right) {
return Vector4<T>(
left.x - right.x,
left.y - right.y,
left.z - right.z,
left.w - right.w
);
}
////////////////////////////////////////////////////////////
template <typename T>
inline Vector4<T> operator *(const Vector4<T>& left, T right) {
return Vector4<T>(
left.x * right,
left.y * right,
left.z * right,
left.w * right
);
}
////////////////////////////////////////////////////////////
template <typename T>
inline Vector4<T> operator *(T left, const Vector4<T>& right) {
return Vector4<T>(
right.x * left,
right.y * left,
right.z * left,
right.w * left
);
}
////////////////////////////////////////////////////////////
template <typename T>
inline Vector4<T>& operator *=(Vector4<T>& left, T right) {
left.x *= right;
left.y *= right;
left.z *= right;
left.w *= right;
return left;
}
////////////////////////////////////////////////////////////
template <typename T>
inline Vector4<T> operator /(const Vector4<T>& left, T right) {
return Vector4<T>(
left.x / right,
left.y / right,
left.z / right,
left.w / right
);
}
////////////////////////////////////////////////////////////
template <typename T>
inline Vector4<T>& operator /=(Vector4<T>& left, T right) {
left.x /= right;
left.y /= right;
left.z /= right;
left.w /= right;
return left;
}
////////////////////////////////////////////////////////////
template <typename T>
inline bool operator ==(const Vector4<T>& left, const Vector4<T>& right) {
return
(left.x == right.x) &&
(left.y == right.y) &&
(left.z == right.z) &&
(left.w == right.w);;
}
////////////////////////////////////////////////////////////
template <typename T>
inline bool operator !=(const Vector4<T>& left, const Vector4<T>& right) {
return
(left.x != right.x) ||
(left.y != right.y) ||
(left.z != right.z) ||
(left.w != right.w);
}
// Define the most common types
typedef Vector4<int> Vector4i;
typedef Vector4<unsigned int> Vector4u;
typedef Vector4<float> Vector4f;
} // namespace sf
#endif // SFML_Vector4_HPP
////////////////////////////////////////////////////////////
/// \class sf::Vector4
/// \ingroup system
///
/// sf::Vector4 is a simple class that defines a mathematical
/// vector with two coordinates (x and y). It can be used to
/// represent anything that has two dimensions: a size, a point,
/// a velocity, etc.
///
/// The template parameter T is the type of the coordinates. It
/// can be any type that supports arithmetic operations (+, -, /, *)
/// and comparisons (==, !=), for example int or float.
///
/// You generally don't have to care about the templated form (sf::Vector4<T>),
/// the most common specializations have special typedefs:
/// \li sf::Vector4<float> is sf::Vector4f
/// \li sf::Vector4<int> is sf::Vector4i
/// \li sf::Vector4<unsigned int> is sf::Vector4u
///
/// The sf::Vector4 class has a small and simple interface, its x and y members
/// can be accessed directly (there are no accessors like setX(), getX()) and it
/// contains no mathematical function like dot product, cross product, length, etc.
///
/// Usage example:
/// \code
/// sf::Vector4f v1(16.5f, 24.f);
/// v1.x = 18.2f;
/// float y = v1.y;
///
/// sf::Vector4f v2 = v1 * 5.f;
/// sf::Vector4
/// v3 = v1 + v2;
///
/// bool different = (v2 != v3);
/// \endcode
///
/// Note: for 3-dimensional vectors, see sf::Vector3.
///
////////////////////////////////////////////////////////////