public void TestGameOver()
{
_game.Restart();
_game.Stop();
Assert.IsNull(_game.WhosInPlay, "Game should have stopped.");
try
{
_game.AddDisc(1);
Assert.Fail("Game should have prevented adding disc while not in progress.");
}
catch (Exception ex)
{
Assert.IsTrue(ex is GameOverException);
}
}
/// <summary>
/// Start game loop
/// </summary>
public void Start()
{
// Restart and draw connect four board
_game.Restart();
Draw();
// Game loop, repeat while game is in play
while (_game.WhoIsWinner == null && _game.WhosInPlay != null)
{
String choice = null;
// Get column choice from user
while (String.IsNullOrWhiteSpace(choice))
{
Console.Write("Enter column number (1 to " + _game.Columns + "), Q to quit or R to Restart? ");
choice = Console.ReadLine().ToUpper();
}
// If the user chooses to quit then stop the game
if (choice.StartsWith("Q"))
{
_game.Stop();
}
// If the user chooses to retart then restart the game
else if (choice.StartsWith("R"))
{
_game.Restart();
Draw();
}
// Otherwise assume user has chosen a column
else
{
// Evaluate if column number
uint selectedColumn = 0;
if (uint.TryParse(choice, out selectedColumn))
{
// Trying adding the user's disc and catch/display any exception
try
{
_game.AddDisc(selectedColumn);
}
catch (Exception e)
{
Console.Write(e.Message + ". Press enter key to continue.");
Console.ReadLine();
}
// If player is CPU then add CPU's disk based on the recommendation
if (_game.WhoIsWinner == null && _game.WhosInPlay == _playerCPU)
{
_game.AddDisc(_game.RecommendColumn);
}
// Redraw connect four board showing new additions
Draw();
// Are we nolonger in play?
if (_game.WhoIsWinner != null || _game.WhosInPlay == null)
{
// Display winning status
if (_game.WhoIsWinner != null)
{
Console.Write((_game.WhoIsWinner == _playerUser ? "User" : "CPU") + " is the winner. ");
}
else
{
Console.Write("no winner this time. ");
}
// Does user wish to play again. If yes restart, otherwise will fallthrough
Console.Write("Another game, enter (Y)es or (N)o? ");
choice = Console.ReadLine().ToUpper();
if (choice.StartsWith("Y"))
{
_game.Restart();
Draw();
}
}
}
}
}
// Retain details on screen until enter key pressed
Console.Write("Press enter key to continue.");
Console.ReadLine();
}