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LibGfx: Constexpr Matrices and Vectors

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Hendiadyoin1 2021-05-02 16:09:18 +02:00 • committed by Andreas Kling
parent 09f850728a
commit 1424c4651f
4 changed files with 61 additions and 61 deletions
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42
Userland/Libraries/LibGfx/Vector3.h
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@ -12,23 +12,23 @@ namespace Gfx {
template<typename T>
class Vector3 final {
public:
Vector3() = default;
Vector3(T x, T y, T z)
constexpr Vector3() = default;
constexpr Vector3(T x, T y, T z)
: m_x(x)
, m_y(y)
, m_z(z)
{
}
T x() const { return m_x; }
T y() const { return m_y; }
T z() const { return m_z; }
constexpr T x() const { return m_x; }
constexpr T y() const { return m_y; }
constexpr T z() const { return m_z; }
void set_x(T value) { m_x = value; }
void set_y(T value) { m_y = value; }
void set_z(T value) { m_z = value; }
constexpr void set_x(T value) { m_x = value; }
constexpr void set_y(T value) { m_y = value; }
constexpr void set_z(T value) { m_z = value; }
Vector3& operator+=(const Vector3& other)
constexpr Vector3& operator+=(const Vector3& other)
{
m_x += other.m_x;
m_y += other.m_y;
@ -36,7 +36,7 @@ public:
return *this;
}
Vector3& operator-=(const Vector3& other)
constexpr Vector3& operator-=(const Vector3& other)
{
m_x -= other.m_x;
m_y -= other.m_y;
@ -44,32 +44,32 @@ public:
return *this;
}
Vector3 operator+(const Vector3& other) const
constexpr Vector3 operator+(const Vector3& other) const
{
return Vector3(m_x + other.m_x, m_y + other.m_y, m_z + other.m_z);
}
Vector3 operator-(const Vector3& other) const
constexpr Vector3 operator-(const Vector3& other) const
{
return Vector3(m_x - other.m_x, m_y - other.m_y, m_z - other.m_z);
}
Vector3 operator*(T f) const
constexpr Vector3 operator*(T f) const
{
return Vector3(m_x * f, m_y * f, m_z * f);
}
Vector3 operator/(T f) const
constexpr Vector3 operator/(T f) const
{
return Vector3(m_x / f, m_y / f, m_z / f);
}
T dot(const Vector3& other) const
constexpr T dot(const Vector3& other) const
{
return m_x * other.m_x + m_y * other.m_y + m_z * other.m_z;
}
Vector3 cross(const Vector3& other) const
constexpr Vector3 cross(const Vector3& other) const
{
return Vector3(
m_y * other.m_z - m_z * other.m_y,
@ -77,20 +77,20 @@ public:
m_x * other.m_y - m_y * other.m_x);
}
Vector3 normalized() const
constexpr Vector3 normalized() const
{
T inv_length = 1 / length();
return *this * inv_length;
}
Vector3 clamped(T m, T x) const
constexpr Vector3 clamped(T m, T x) const
{
Vector3 copy { *this };
copy.clamp(m, x);
return copy;
}
void clamp(T min_value, T max_value)
constexpr void clamp(T min_value, T max_value)
{
m_x = max(min_value, m_x);
m_y = max(min_value, m_y);
@ -100,7 +100,7 @@ public:
m_z = min(max_value, m_z);
}
void normalize()
constexpr void normalize()
{
T inv_length = 1 / length();
m_x *= inv_length;
@ -108,7 +108,7 @@ public:
m_z *= inv_length;
}
T length() const
constexpr T length() const
{
return sqrt(m_x * m_x + m_y * m_y + m_z * m_z);
}