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#pragma once
#include "Vector2.h"
#include "Vector3.h"
#include "../../Main.h"
#include <cmath>
#include <Containers/Tags.h>
namespace nCine
{
inline namespace Primitives
{
using Death::Containers::NoInitT;
/// Four-component vector
template<class T>
class Vector4
{
public:
T X, Y, Z, W;
constexpr Vector4() noexcept
: X{T(0)}, Y{T(0)}, Z{T(0)}, W{T(0)} {}
explicit Vector4(NoInitT) noexcept {}
explicit constexpr Vector4(T s) noexcept
: X(s), Y(s), Z(s), W(s) {}
constexpr Vector4(T x, T y, T z, T w) noexcept
: X(x), Y(y), Z(z), W(w) {}
constexpr Vector4(const Vector2<T>& other, T z, T w) noexcept
: X(other.X), Y(other.Y), Z(z), W(w) {}
constexpr Vector4(Vector2<T>&& other, T z, T w) noexcept
: X(other.X), Y(other.Y), Z(z), W(w) {}
constexpr Vector4(const Vector3<T>& other, T w) noexcept
: X(other.X), Y(other.Y), Z(other.Z), W(w) {}
constexpr Vector4(Vector3<T>&& other, T w) noexcept
: X(other.X), Y(other.Y), Z(other.Z), W(w) {}
constexpr Vector4(const Vector4& other) noexcept
: X(other.X), Y(other.Y), Z(other.Z), W(other.W) {}
constexpr Vector4(Vector4&& other) noexcept
: X(other.X), Y(other.Y), Z(other.Z), W(other.W) {}
Vector4& operator=(const Vector4& other) noexcept;
Vector4& operator=(Vector4&& other) noexcept;
void Set(T x, T y, T z, T w);
T* Data();
const T* Data() const;
T& operator[](std::size_t index);
const T& operator[](std::size_t index) const;
bool operator==(const Vector4& v) const;
bool operator!=(const Vector4& v) const;
Vector4 operator-() const;
Vector4& operator+=(const Vector4& v);
Vector4& operator-=(const Vector4& v);
Vector4& operator*=(const Vector4& v);
Vector4& operator/=(const Vector4& v);
Vector4& operator+=(T s);
Vector4& operator-=(T s);
Vector4& operator*=(T s);
Vector4& operator/=(T s);
Vector4 operator+(const Vector4& v) const;
Vector4 operator-(const Vector4& v) const;
Vector4 operator*(const Vector4& v) const;
Vector4 operator/(const Vector4& v) const;
Vector4 operator+(T s) const;
Vector4 operator-(T s) const;
Vector4 operator*(T s) const;
Vector4 operator/(T s) const;
template<class S>
friend Vector4<S> operator*(S s, const Vector4<S>& v);
T Length() const;
T SqrLength() const;
Vector4 Normalized() const;
Vector4& Normalize();
/// Converts elements of the vector to a specified type
template<class S>
Vector4<S> As() {
return Vector4<S>(static_cast<S>(X), static_cast<S>(Y), static_cast<S>(Z), static_cast<S>(W));
}
Vector2<T> ToVector2() const;
Vector3<T> ToVector3() const;
static T Dot(const Vector4& v1, const Vector4& v2);
static Vector4 Lerp(const Vector4& a, const Vector4& b, float t);
/** @{ @name Constants */
/// A vector with all zero elements
static const Vector4 Zero;
/// A unit vector on the X axis
static const Vector4 XAxis;
/// A unit vector on the Y axis
static const Vector4 YAxis;
/// A unit vector on the Z axis
static const Vector4 ZAxis;
/// A unit vector on the W axis
static const Vector4 WAxis;
/** @} */
};
/// Four-component vector of floats
using Vector4f = Vector4<float>;
/// Four-component vector of 32-bit integers
using Vector4i = Vector4<int>;
template<class T>
inline Vector4<T>& Vector4<T>::operator=(const Vector4<T>& other) noexcept
{
X = other.X;
Y = other.Y;
Z = other.Z;
W = other.W;
return *this;
}
template<class T>
inline Vector4<T>& Vector4<T>::operator=(Vector4<T>&& other) noexcept
{
X = other.X;
Y = other.Y;
Z = other.Z;
W = other.W;
return *this;
}
template<class T>
inline void Vector4<T>::Set(T x, T y, T z, T w)
{
X = x;
Y = y;
Z = z;
W = w;
}
template<class T>
inline T* Vector4<T>::Data()
{
return &X;
}
template<class T>
inline const T* Vector4<T>::Data() const
{
return &X;
}
template<class T>
inline T& Vector4<T>::operator[](std::size_t index)
{
DEATH_ASSERT(index < 4);
return (&X)[index];
}
template<class T>
inline const T& Vector4<T>::operator[](std::size_t index) const
{
DEATH_ASSERT(index < 4);
return (&X)[index];
}
template<class T>
inline bool Vector4<T>::operator==(const Vector4& v) const
{
return (X == v.X && Y == v.Y && Z == v.Z && W == v.W);
}
template<class T>
inline bool Vector4<T>::operator!=(const Vector4& v) const
{
return (X != v.X || Y != v.Y || Z != v.Z || W != v.W);
}
template<class T>
inline Vector4<T> Vector4<T>::operator-() const
{
return Vector4(-X, -Y, -Z, -W);
}
template<class T>
inline Vector4<T>& Vector4<T>::operator+=(const Vector4& v)
{
X += v.X;
Y += v.Y;
Z += v.Z;
W += v.W;
return *this;
}
template<class T>
inline Vector4<T>& Vector4<T>::operator-=(const Vector4& v)
{
X -= v.X;
Y -= v.Y;
Z -= v.Z;
W -= v.W;
return *this;
}
template<class T>
inline Vector4<T>& Vector4<T>::operator*=(const Vector4& v)
{
X *= v.X;
Y *= v.Y;
Z *= v.Z;
W *= v.W;
return *this;
}
template<class T>
inline Vector4<T>& Vector4<T>::operator/=(const Vector4& v)
{
X /= v.X;
Y /= v.Y;
Z /= v.Z;
W /= v.W;
return *this;
}
template<class T>
inline Vector4<T>& Vector4<T>::operator+=(T s)
{
X += s;
Y += s;
Z += s;
W += s;
return *this;
}
template<class T>
inline Vector4<T>& Vector4<T>::operator-=(T s)
{
X -= s;
Y -= s;
Z -= s;
W -= s;
return *this;
}
template<class T>
inline Vector4<T>& Vector4<T>::operator*=(T s)
{
X *= s;
Y *= s;
Z *= s;
W *= s;
return *this;
}
template<class T>
inline Vector4<T>& Vector4<T>::operator/=(T s)
{
X /= s;
Y /= s;
Z /= s;
W /= s;
return *this;
}
template<class T>
inline Vector4<T> Vector4<T>::operator+(const Vector4& v) const
{
return Vector4(X + v.X,
Y + v.Y,
Z + v.Z,
W + v.W);
}
template<class T>
inline Vector4<T> Vector4<T>::operator-(const Vector4& v) const
{
return Vector4(X - v.X,
Y - v.Y,
Z - v.Z,
W - v.W);
}
template<class T>
inline Vector4<T> Vector4<T>::operator*(const Vector4& v) const
{
return Vector4(X * v.X,
Y * v.Y,
Z * v.Z,
W * v.W);
}
template<class T>
inline Vector4<T> Vector4<T>::operator/(const Vector4& v) const
{
return Vector4(X / v.X,
Y / v.Y,
Z / v.Z,
W / v.W);
}
template<class T>
inline Vector4<T> Vector4<T>::operator+(T s) const
{
return Vector4(X + s,
Y + s,
Z + s,
W + s);
}
template<class T>
inline Vector4<T> Vector4<T>::operator-(T s) const
{
return Vector4(X - s,
Y - s,
Z - s,
W - s);
}
template<class T>
inline Vector4<T> Vector4<T>::operator*(T s) const
{
return Vector4(X * s,
Y * s,
Z * s,
W * s);
}
template<class T>
inline Vector4<T> Vector4<T>::operator/(T s) const
{
return Vector4(X / s,
Y / s,
Z / s,
W / s);
}
template<class S>
inline Vector4<S> operator*(S s, const Vector4<S>& v)
{
return Vector4<S>(s * v.X,
s * v.Y,
s * v.Z,
s * v.W);
}
template<class T>
inline T Vector4<T>::Length() const
{
return (T)sqrt(X * X + Y * Y + Z * Z + W * W);
}
template<class T>
inline T Vector4<T>::SqrLength() const
{
return X * X + Y * Y + Z * Z + W * W;
}
template<class T>
inline Vector4<T> Vector4<T>::Normalized() const
{
const T len = Length();
return Vector4(X / len, Y / len, Z / len, W / len);
}
template<class T>
inline Vector4<T>& Vector4<T>::Normalize()
{
const T len = Length();
X /= len;
Y /= len;
Z /= len;
W /= len;
return *this;
}
template<class T>
inline Vector2<T> Vector4<T>::ToVector2() const
{
return Vector2<T>(X, Y);
}
template<class T>
inline Vector3<T> Vector4<T>::ToVector3() const
{
return Vector3<T>(X, Y, Z);
}
template<class T>
inline T Vector4<T>::Dot(const Vector4<T>& v1, const Vector4<T>& v2)
{
return static_cast<T>(v1.X * v2.X + v1.Y * v2.Y + v1.Z * v2.Z + v1.W * v2.W);
}
template<class T>
inline Vector4<T> Vector4<T>::Lerp(const Vector4<T>& a, const Vector4<T>& b, float t)
{
return Vector4<T>(t * (b.X - a.X) + a.X, t * (b.Y - a.Y) + a.Y, t * (b.Z - a.Z) + a.Z, t * (b.W - a.W) + a.W);
}
template<class T>
const Vector4<T> Vector4<T>::Zero(0, 0, 0, 0);
template<class T>
const Vector4<T> Vector4<T>::XAxis(1, 0, 0, 0);
template<class T>
const Vector4<T> Vector4<T>::YAxis(0, 1, 0, 0);
template<class T>
const Vector4<T> Vector4<T>::ZAxis(0, 0, 1, 0);
template<class T>
const Vector4<T> Vector4<T>::WAxis(0, 0, 0, 1);
}
}
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