public void TestMethods()
{
{
// test identity
Matrix4x4 managedMatrix = new Matrix4x4(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16);
managedMatrix.SetIdentity();
Assert.IsTrue(managedMatrix == Matrix4x4.Identity, "Managed matrix fails identity");
}
{
//test zero
Matrix4x4 managedMatrix = new Matrix4x4(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16);
managedMatrix.SetZero();
Matrix4x4 zeroMatrix = new Matrix4x4(0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0);
Assert.IsTrue(managedMatrix == zeroMatrix, "Managed matrix fails zero");
}
{
//test transpose
Matrix4x4 managedMatrix = new Matrix4x4(1, 1, 1, 0,
0, 3, 1, 2,
2, 3, 1, 0,
1, 0, 2, 1);
Matrix4x4 transposedManagedMatrix = new Matrix4x4(1, 0, 2, 1,
1, 3, 3, 0,
1, 1, 1, 2,
0, 2, 0, 1);
Matrix4x4 transposedMatrix = managedMatrix.GetTransposed();
Assert.IsTrue(transposedMatrix == transposedManagedMatrix, "Managed matrix fails transpose 1: Expected " + transposedManagedMatrix.ToString() + " Actual :" + transposedManagedMatrix.ToString());
Assert.IsTrue(transposedManagedMatrix == transposedMatrix, "Managed matrix fails transpose 2");
}
{
//test inversion
Matrix4x4 matrix4x4 = new Matrix4x4(1, 1, 1, 0,
0, 3, 1, 2,
2, 3, 1, 0,
1, 0, 2, 1);
//inversed will be
Matrix4x4 inverseMatrixExpected = new Matrix4x4(-3, -1f / 2, 3f / 2, 1f,
1f, 1f / 4, -1f / 4, -1f / 2,
3f, 1f / 4, -5f / 4, -1f / 2,
-3, 0, 1, 1);
Matrix4x4 inverseMatrixCalculated = matrix4x4.GetInverted();
Assert.IsTrue(inverseMatrixCalculated == inverseMatrixExpected, "Matrix4x4 inversion failed : Expected " + inverseMatrixExpected.ToString() + " Actual :" + inverseMatrixCalculated.ToString());
Matrix44 matrixNative44 = new Matrix44(1, 1, 1, 0,
0, 3, 1, 2,
2, 3, 1, 0,
1, 0, 2, 1);
//inversed will be
Matrix44 inverseMatrix44Expected = new Matrix44(-3, -1f / 2, 3f / 2, 1f,
1f, 1f / 4, -1f / 4, -1f / 2,
3f, 1f / 4, -5f / 4, -1f / 2,
-3, 0, 1, 1);
Matrix44 inverseMatrixNative44Calculated = matrixNative44.GetInverted();
Matrix4x4 inverseMatrixManaged44Expected = inverseMatrix44Expected;
Matrix4x4 inverseMatrixManaged44Calculated = inverseMatrixNative44Calculated;
Assert.IsTrue(inverseMatrixManaged44Expected == inverseMatrixManaged44Calculated, "Matrix4x4 inversion failed : Expected " + inverseMatrix44Expected.PrintString() + " Actual :" + inverseMatrixNative44Calculated.PrintString());
}
{
//test Determinant
Matrix4x4 matrix4x4 = new Matrix4x4(1, 1, 1, 0,
0, 3, 1, 2,
2, 3, 1, 0,
1, 0, 2, 1);
float determinant1 = matrix4x4.Determinant();
Matrix44 nativeMatrix44 = new Matrix44(1, 1, 1, 0,
0, 3, 1, 2,
2, 3, 1, 0,
1, 0, 2, 1);
float determinant2 = nativeMatrix44.Determinant();
Assert.IsTrue(determinant1 == determinant2, "Determinants are not equal ");
}
}