public void ApplyTurnThrowsOnYellowActionWhenRedTurn()
{
var gameLogic = new GameLogic();
var game = new Game()
{
CurrentTurnPlayer = Player.Red
};
gameLogic.ApplyTurn(game, Player.Yellow, 0);
}
public void DetermineGameOverStateTestInProgress()
{
var gameLogic = new GameLogic();
var game = new Game();
game.Cells = new int[,]
{
{ 2, 1, 0, 1 },
{ 1, 2, 1, 2 },
{ 1, 2, 1, 2 },
{ 1, 2, 1, 2 },
};
Assert.AreEqual(GameOverState.InProgress, gameLogic.DetermineGameOverState(game));
}
public void ConnectPlayer(Game game, Player player)
{
// TODO: need this later to prevent multiple red players
//if (game.GameOverState != GameOverState.WaitingForPlayers) throw new InvalidOperationException("cannot connect player - game already in progress");
if (player == Player.Red) game.IsRedConnected = true;
if (player == Player.Yellow) game.IsYellowConnected = true;
if (game.GameOverState == GameOverState.WaitingForPlayers && game.IsRedConnected && game.IsYellowConnected)
{
game.CurrentTurnPlayer = Player.Red;
game.GameOverState = GameOverState.InProgress;
}
}
public void ApplyTurn(Game game, Player player, int column)
{
if (game.GameOverState == GameOverState.WaitingForPlayers) throw new InvalidOperationException(string.Format("cannot apply turn - waiting for players"));
if (game.GameOverState != GameOverState.InProgress) throw new InvalidOperationException(string.Format("cannot apply turn - game finished: {0}", game.GameOverState));
if (game.CurrentTurnPlayer != player) throw new InvalidOperationException(string.Format("cannot apply turn - it's other player's turn: e={0} a={1}", game.CurrentTurnPlayer, player));
var nextCellIndex = GetNextCellIndex(game, column);
var appliedCellState = (int)player;
game.Cells[nextCellIndex, column] = appliedCellState;
game.GameOverState = DetermineGameOverState(game);
if (game.GameOverState != GameOverState.InProgress) return;
if (player == Player.Red) game.CurrentTurnPlayer = Player.Yellow;
else game.CurrentTurnPlayer = Player.Red;
}
public void ApplyTurnTestAppliesAndTogglesPlayer()
{
var gameLogic = new GameLogic();
var game = new Game() { GameOverState = GameOverState.InProgress };
game.Cells = new int[,]
{
{ 2, 1, 0, 0 },
{ 1, 2, 1, 2 },
{ 1, 2, 1, 2 },
{ 1, 2, 1, 2 },
};
var column = 3;
gameLogic.ApplyTurn(game, Player.Red, column);
Assert.AreEqual(GameOverState.InProgress, game.GameOverState);
Assert.AreEqual((int)Player.Red, game.Cells[3, 0]);
Assert.AreEqual(Player.Yellow, game.CurrentTurnPlayer);
}
public void StoreGame(string id, Game game)
{
if (games.ContainsKey(id)) games[id] = game;
else games.Add(id, game);
}
public void DetermineGameOverStateTestRedWinColumn()
{
var gameLogic = new GameLogic();
var game = new Game();
game.Cells = new int[,]
{
{ 0, 0, 0, 1 },
{ 0, 0, 2, 1 },
{ 0, 0, 2, 1 },
{ 0, 2, 2, 1 },
};
Assert.AreEqual(GameOverState.RedWin, gameLogic.DetermineGameOverState(game));
}
public void GetNextCellIndexThrowsOnFullColumn()
{
var gameLogic = new GameLogic();
var game = new Game();
game.Cells = new int[,]
{
{ 2, 0, 0, 0 },
{ 1, 0, 0, 0 },
{ 2, 0, 0, 0 },
{ 1, 0, 0, 0 },
};
gameLogic.GetNextCellIndex(game, 0);
}
public void GetNextCellIndexReturnsExpectedValue()
{
var gameLogic = new GameLogic();
var game = new Game();
game.Cells = new int[,]
{
{ 1, 0, 0, 0 },
{ 1, 0, 0, 0 },
{ 1, 0, 0, 0 },
{ 1, 0, 0, 0 },
};
var column = 0;
// clear cells starting with top one and check that GetNextCellIndex returns just-cleared row value
for (var row = 0; row < game.MaxRows; row += 1)
{
game.Cells[row, column] = 0;
Assert.AreEqual(row, gameLogic.GetNextCellIndex(game, column));
}
}
public void DetermineGameOverStateTestRedWinDiag1()
{
var gameLogic = new GameLogic();
var game = new Game();
game.Cells = new int[,]
{
{ 1, 0, 0, 0 },
{ 2, 1, 0, 0 },
{ 2, 2, 1, 2 },
{ 1, 2, 1, 1 },
};
Assert.AreEqual(GameOverState.RedWin, gameLogic.DetermineGameOverState(game));
}
public void StartNewGame(string gameId)
{
// retrieve game
Game game;
try
{
game = GameRepository.GetGame(gameId);
}
catch (KeyNotFoundException ex)
{
Clients.Caller.message(ex.Message);
return;
}
game = new Game();
GameRepository.StoreGame("0", game);
Clients.All.newGame();
Clients.All.syncGame(game);
}
public GameOverState DetermineGameOverState(Game game)
{
// check for win, if no win then change CurrentTurnPlayer
// TODO: it maybe better to not have player-dependent logic here, as it limits us to 2 players
// check all rows
for (var row = 0; row < game.MaxRows; row += 1)
{
var isAllSame = true;
var firstCellValue = game.Cells[row, 0];
if (firstCellValue == (int)Player.Undefined) continue; // first cell hasn't been set yet - move along
for (var column = 1; column < game.MaxColumns; column += 1)
{
if (game.Cells[row, column] != firstCellValue)
{
isAllSame = false;
break;
}
}
if (isAllSame) return GameOverStateFromPlayer((Player)firstCellValue);
}
// check all columns
for (var column = 0; column < game.MaxColumns; column += 1)
{
var isAllSame = true;
var firstCellValue = game.Cells[0, column];
if (firstCellValue == (int)Player.Undefined) continue; // first cell hasn't been set yet - move along
for (var row = 1; row < game.MaxRows; row += 1)
{
if (game.Cells[row, column] != firstCellValue)
{
isAllSame = false;
break;
}
}
if (isAllSame) return GameOverStateFromPlayer((Player)firstCellValue);
}
// check diagonals
{
var isAllSame = true;
var firstCellValue = game.Cells[0, 0];
if (firstCellValue != (int)Player.Undefined)
{
for (var column = 0; column < game.MaxColumns; column += 1)
{
var row = column;
if (row >= game.MaxRows) break;
if (game.Cells[column, column] != firstCellValue)
{
isAllSame = false;
break;
}
}
if (isAllSame) return GameOverStateFromPlayer((Player)firstCellValue);
}
}
{
var isAllSame = true;
var firstCellValue = game.Cells[game.MaxRows - 1, 0];
if (firstCellValue != (int)Player.Undefined)
{
for (var column = 0; column < game.MaxColumns; column += 1)
{
var row = game.MaxRows - 1 - column;
if (row < 0) break;
if (game.Cells[row, column] != firstCellValue)
{
isAllSame = false;
break;
}
}
if (isAllSame) return GameOverStateFromPlayer((Player)firstCellValue);
}
}
// check for draw
var isDraw = true;
foreach (var cellValue in game.Cells)
{
if (cellValue == (int)Player.Undefined)
{
isDraw = false;
break;
}
}
if (isDraw) return GameOverState.Draw;
return GameOverState.InProgress;
}
public int GetNextCellIndex(Game game, int column)
{
// returns: ex 0 1 2 3
// r e e e e
// r r e e e
// r r r e e
// r r r r e
int row;
for (row = 0; row < game.MaxRows; row += 1)
{
if (game.Cells[row, column] != 0)
break;
}
if (row == 0) throw new InvalidOperationException(string.Format("cannot apply turn - column {0} full", column));
return row - 1;
}