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Mat22.hpp
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Mat22.hpp
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#pragma once
namespace math
{
template<typename T>
struct Mat22
{
T buffer[4];
inline Mat22& operator+=(const Mat22& rhs)
{
buffer[0] += rhs.buffer[0];
buffer[1] += rhs.buffer[1];
buffer[2] += rhs.buffer[2];
buffer[3] += rhs.buffer[3];
return *this;
}
inline Mat22& operator-=(const Mat22& rhs)
{
buffer[0] -= rhs.buffer[0];
buffer[1] -= rhs.buffer[1];
buffer[2] -= rhs.buffer[2];
buffer[3] -= rhs.buffer[3];
return *this;
}
inline Mat22& operator*=(const Mat22& rhs)
{
*this = *this * rhs;
return *this;
}
inline Mat22& operator/=(const Mat22& rhs)
{
*this = *this / rhs;
return *this;
}
inline Mat22& operator*=(T factor)
{
buffer[0] *= factor;
buffer[1] *= factor;
buffer[2] *= factor;
buffer[3] *= factor;
return *this;
}
inline Mat22& operator/=(T factor)
{
buffer[0] /= factor;
buffer[1] /= factor;
buffer[2] /= factor;
buffer[3] /= factor;
return *this;
}
inline Mat22& operator%=(int factor)
{
buffer[0] %= factor;
buffer[1] %= factor;
buffer[2] %= factor;
buffer[3] %= factor;
return *this;
}
inline const Mat22 operator+(const Mat22& rhs) const
{
Mat22 m = *this; m += rhs; return m;
}
inline const Mat22 operator-(const Mat22& rhs) const
{
Mat22 m = *this; m -= rhs; return m;
}
inline const Mat22 operator*(const Mat22& rhs) const
{
Mat22 m;
m.buffer[0] = buffer[0] * rhs.buffer[0] + buffer[1] * rhs.buffer[2];
m.buffer[1] = buffer[0] * rhs.buffer[1] + buffer[1] * rhs.buffer[3];
m.buffer[2] = buffer[2] * rhs.buffer[0] + buffer[3] * rhs.buffer[2];
m.buffer[3] = buffer[2] * rhs.buffer[1] + buffer[3] * rhs.buffer[3];
return m;
}
inline const Mat22 operator/(const Mat22& rhs) const
{
Mat22 m;
m.buffer[0] = buffer[0] / rhs.buffer[0] + buffer[1] / rhs.buffer[2];
m.buffer[1] = buffer[0] / rhs.buffer[1] + buffer[1] / rhs.buffer[3];
m.buffer[2] = buffer[2] / rhs.buffer[0] + buffer[3] / rhs.buffer[2];
m.buffer[3] = buffer[2] / rhs.buffer[1] + buffer[3] / rhs.buffer[3];
return m;
}
inline const Mat22 operator*(T factor) const
{
Mat22 m = *this; m *= factor; return m;
}
inline const Mat22 operator/(T factor) const
{
Mat22 m = *this; m /= factor; return m;
}
inline const Vec2<T> operator*(const Vec2<T>& rhs) const
{
Vec2<T> r;
r.x = buffer[0] * rhs.x + buffer[1] * rhs.y;
r.y = buffer[2] * rhs.x + buffer[3] * rhs.y;
return r;
}
inline bool operator==(const Mat22& rhs) const
{
return buffer[0] == rhs.buffer[0]
&& buffer[1] == rhs.buffer[1]
&& buffer[2] == rhs.buffer[2]
&& buffer[3] == rhs.buffer[3];
}
inline bool operator!=(const Mat22& rhs) const
{
return buffer[0] != rhs.buffer[0]
|| buffer[1] != rhs.buffer[1]
|| buffer[2] != rhs.buffer[2]
|| buffer[3] != rhs.buffer[3];
}
};
typedef Mat22<float> Mat22f;
typedef Mat22<int> Mat22i;
}