public Matrix(int number)
{
this.Rows = number;
this.matrix = new int[this.Rows, this.Rows];
this.currentPosition = new Position(0, 0);
this.currentNumber = 1;
}
public void Traverse()
{
while (!this.CheckIfFilled())
{
Position startingPosition = this.GetFreePosition();
this.CurrentPosition = startingPosition;
int rowMove = 1;
int columnMove = 1;
while (this.MoveAvailable())
{
this.matrix[this.CurrentPosition.Row, this.CurrentPosition.Column] = this.currentNumber;
this.currentNumber++;
if (!this.MoveAvailable())
{
break;
}
if ((this.CurrentPosition.Row + rowMove >= this.Rows) || (this.CurrentPosition.Row + rowMove < 0) || (this.CurrentPosition.Column + columnMove >= this.Rows) || (this.CurrentPosition.Column + columnMove < 0) || (this.matrix[this.CurrentPosition.Row + rowMove, this.CurrentPosition.Column + columnMove] != 0))
{
while ((this.CurrentPosition.Row + rowMove >= this.Rows) || (this.CurrentPosition.Row + rowMove < 0) || (this.CurrentPosition.Column + columnMove >= this.Rows) || (this.CurrentPosition.Column + columnMove < 0) || (this.matrix[this.CurrentPosition.Row + rowMove, this.CurrentPosition.Column + columnMove] != 0))
{
this.MovePosition(ref rowMove, ref columnMove);
}
}
this.CurrentPosition.Row += rowMove;
this.CurrentPosition.Column += columnMove;
}
// This following line needs to be both in the inner and the outher cycle for the code to work.
// Without it in the outer cycle, the setting of the last position either will never happen (if not present
// at all) or will happen with a number that is +1 to the correct number (if put in the wrong place).
if (!this.CheckIfFilled())
{
this.matrix[this.CurrentPosition.Row, this.CurrentPosition.Column] = this.currentNumber;
this.currentNumber++;
}
}
}
public void TestConstructorInvalidRowAndColumn()
{
Position position = new Position(-16, -34);
}
public void TestConstructorInvalidColumn()
{
Position position = new Position(0, -34);
}
public void TestConstructorInvalidRow()
{
Position position = new Position(-1, 3);
}
public void TestConstructorValidArgumentsBothZero()
{
Position position = new Position(0, 0);
Assert.AreEqual(0, position.Row);
Assert.AreEqual(0, position.Column);
}
public void TestConstructorValidArguments()
{
Position position = new Position(1, 4);
Assert.AreEqual(1, position.Row);
Assert.AreEqual(4, position.Column);
}