private void ResetMatrix()
{
if (gameMatrix != null)
{
List <GameObject> cubesFromPrevRound = gameMatrix.GetLeftOversCubes();
cubesFromPrevRound.AddRange(gameMatrix.GetOverStacked());
for (int i = cubesFromPrevRound.Count - 1; i >= 0; i--)
{
Destroy(cubesFromPrevRound[i]);
}
}
gameMatrix = new GameMatrix(matrixDimensions);
}