urho3d/Source/Urho3D/Math/Matrix2.cpp

// Copyright (c) 2008-2023 the Urho3D project
// License: MIT

#include "../Precompiled.h"

#include "../Math/Matrix2.h"

#include <cstdio>

#include "../DebugNew.h"

namespace Urho3D
{

const Matrix2 Matrix2::ZERO(
    0.0f, 0.0f,
    0.0f, 0.0f);

const Matrix2 Matrix2::IDENTITY;

Matrix2 Matrix2::Inverse() const
{
    float det = m00_ * m11_ -
                m01_ * m10_;

    float invDet = 1.0f / det;

    return Matrix2(
        m11_, -m01_,
        -m10_, m00_
    ) * invDet;
}

String Matrix2::ToString() const
{
    char tempBuffer[MATRIX_CONVERSION_BUFFER_LENGTH];
    sprintf(tempBuffer, "%g %g %g %g", m00_, m01_, m10_, m11_);
    return String(tempBuffer);
}
}