/// <summary>
/// A class that checks for unpopped baloons and adds then to a stack.
/// If there are unpopped baloons their positions are reset. If all baloons are
/// popped, red baloons are created in the emprty space.
/// </summary>
/// <param name="board">This method accepts a new instance of the Gameboard.</param>
public override void Apply(Gameboard board)
{
for (int col = 0; col < board.BoardWidth; col++)
{
Stack<BoardComponent> columnContents = new Stack<BoardComponent>();
for (int row = 0; row < board.BoardHeight; row++)
{
var currentComponent = board.GetElement(row, col);
if (currentComponent.IsActive)
{
columnContents.Push(currentComponent);
}
}
for (int row = board.BoardHeight - 1; row >= 0; row--)
{
if (columnContents.Count > 0)
{
board.SetElement(row, col, columnContents.Pop());
}
else
{
BalloonMaker balloonMaker = new BalloonMaker();
BoardComponent poppedBalloon = balloonMaker.MakeBalloon(BaloonColor.Red);
poppedBalloon.IsActive = false;
board.SetElement(row, col, poppedBalloon);
}
}
}
}
/// <summary>
/// This Method fills the board with balloons of random color.
/// </summary>
public void GetBalloonsOnBoard()
{
Random randomGenerator = new Random();
for (int i = 0; i < this.BoardHeight; i++)
{
for (int j = 0; j < this.BoardWidth; j++)
{
int seed = randomGenerator.Next(0, 4);
var balloonFactory = new BalloonMaker();
switch (seed)
{
case 0:
this.contents[i, j] = balloonFactory.MakeBalloon(BaloonColor.Red);
continue;
case 1:
this.contents[i, j] = balloonFactory.MakeBalloon(BaloonColor.Blue);
continue;
case 2:
this.contents[i, j] = balloonFactory.MakeBalloon(BaloonColor.Green);
continue;
case 3:
this.contents[i, j] = balloonFactory.MakeBalloon(BaloonColor.Yellow);
continue;
default:
throw new ArgumentException();
}
}
}
}