public void Run()
{
MatrixCoordinates kingCoordinates = new MatrixCoordinates(KingInitialRow, KingInitialColumn);
King king = new King(kingCoordinates);
MatrixCoordinates pawnACoordinates = new MatrixCoordinates(PawnAInitialRow, PawnAInitialColumn);
Pawn pawnA = new Pawn('A', pawnACoordinates);
MatrixCoordinates pawnBCoordinates = new MatrixCoordinates(PawnBInitialRow, PawnBInitialColumn);
Pawn pawnB = new Pawn('B', pawnBCoordinates);
MatrixCoordinates pawnCCoordinates = new MatrixCoordinates(PawnCInitialRow, PawnCInitialColumn);
Pawn pawnC = new Pawn('C', pawnCCoordinates);
MatrixCoordinates pawnDCoordinates = new MatrixCoordinates(PawnDInitialRow, PawnDInitialColumn);
Pawn pawnD = new Pawn('D', pawnDCoordinates);
bool endOfGame = false;
int currentMove = 1;
do
{
bool isValidMove = false;
do
{
try
{
Console.Clear();
Console.WriteLine(this.board.GetImage(king, pawnA, pawnB, pawnC, pawnD));
isValidMove = this.IsValidMove(currentMove, king, pawnA, pawnB, pawnC, pawnD);
}
catch (KingSurvivalException kse)
{
Console.WriteLine(kse.Message);
Console.ReadLine();
}
}
while (!isValidMove);
endOfGame = this.HasGameEnded(currentMove, king, pawnA, pawnB, pawnC, pawnD);
this.isKingWinner = this.HasKingWon(currentMove, endOfGame, king, pawnA, pawnB, pawnC, pawnD);
currentMove++;
}
while (!endOfGame);
if (endOfGame)
{
this.DisplayCurrentEndOnConsole(currentMove, king, pawnA, pawnB, pawnC, pawnD);
}
}
private bool HasGameEnded(int gameTurn, King king, Pawn pawnA, Pawn pawnB, Pawn pawnC, Pawn pawnD)
{
bool isKingOnTurn = false;
isKingOnTurn = (gameTurn % 2 == 1);
if (isKingOnTurn && king.Coordinates.Row == 0)
{
return true;
}
else
{
if (!this.CanKingMove(king, pawnA, pawnB, pawnC, pawnD) ||
!this.CanAtLeastOnePawnMove(king, pawnA, pawnB, pawnC, pawnD))
{
return true;
}
else
{
return false;
}
}
}
private bool CanAtLeastOnePawnMove(King king, Pawn pawnA, Pawn pawnB, Pawn pawnC, Pawn pawnD)
{
bool canPawnAMove =
this.CanCurrentPawnMove(
pawnA.Coordinates,
pawnB.Coordinates,
pawnC.Coordinates,
pawnD.Coordinates,
king.Coordinates);
bool canPawnBMove =
this.CanCurrentPawnMove(
pawnB.Coordinates,
pawnA.Coordinates,
pawnC.Coordinates,
pawnD.Coordinates,
king.Coordinates);
bool canPawnCMove =
this.CanCurrentPawnMove(
pawnC.Coordinates,
pawnA.Coordinates,
pawnB.Coordinates,
pawnD.Coordinates,
king.Coordinates);
bool canPawnDMove =
this.CanCurrentPawnMove(
pawnD.Coordinates,
pawnA.Coordinates,
pawnB.Coordinates,
pawnC.Coordinates,
king.Coordinates);
bool canAtLeastOnePawnMove = canPawnAMove || canPawnBMove || canPawnCMove || canPawnDMove;
return canAtLeastOnePawnMove;
}
private bool IsValidPawnMove(string command, King king, Pawn pawnA, Pawn pawnB, Pawn pawnC, Pawn pawnD)
{
switch (command)
{
case "adl":
return this.HandleDownLeftPawnMove(
pawnA,
king.Coordinates,
pawnB.Coordinates,
pawnC.Coordinates,
pawnD.Coordinates);
case "adr":
return this.HandleDownRightPawnMove(
pawnA,
king.Coordinates,
pawnB.Coordinates,
pawnC.Coordinates,
pawnD.Coordinates);
case "bdl":
return this.HandleDownLeftPawnMove(
pawnB,
king.Coordinates,
pawnA.Coordinates,
pawnC.Coordinates,
pawnD.Coordinates);
case "bdr":
return this.HandleDownRightPawnMove(
pawnB,
king.Coordinates,
pawnA.Coordinates,
pawnC.Coordinates,
pawnD.Coordinates);
case "cdl":
return this.HandleDownLeftPawnMove(
pawnC,
king.Coordinates,
pawnA.Coordinates,
pawnB.Coordinates,
pawnD.Coordinates);
case "cdr":
return this.HandleDownRightPawnMove(
pawnC,
king.Coordinates,
pawnA.Coordinates,
pawnB.Coordinates,
pawnD.Coordinates);
case "ddl":
return this.HandleDownLeftPawnMove(
pawnD,
king.Coordinates,
pawnA.Coordinates,
pawnB.Coordinates,
pawnC.Coordinates);
case "ddr":
return this.HandleDownRightPawnMove(
pawnD,
king.Coordinates,
pawnA.Coordinates,
pawnB.Coordinates,
pawnC.Coordinates);
default:
throw new KingSurvivalException("Invalid move!");
}
}
private bool IsValidMove(int turn, King king, Pawn pawnA, Pawn pawnB, Pawn pawnC, Pawn pawnD)
{
bool isValid;
string command;
if (turn % 2 == 1)
{
Console.Write("King's turn: ");
command = Console.ReadLine().ToLower();
isValid = this.IsValidKingMove(command, king, pawnA, pawnB, pawnC, pawnD);
}
else
{
Console.Write("Pawn's turn: ");
command = Console.ReadLine().ToLower();
isValid = this.IsValidPawnMove(command, king, pawnA, pawnB, pawnC, pawnD);
}
return isValid;
}
private bool IsValidKingMove(string command, King king, Pawn pawnA, Pawn pawnB, Pawn pawnC, Pawn pawnD)
{
switch (command)
{
case "kul":
return this.HandleUpLeftKingMove(
king,
pawnA.Coordinates,
pawnB.Coordinates,
pawnC.Coordinates,
pawnD.Coordinates);
case "kur":
return this.HandleUpRightKingMove(
king,
pawnA.Coordinates,
pawnB.Coordinates,
pawnC.Coordinates,
pawnD.Coordinates);
case "kdl":
return this.HandleDownLeftPawnMove(
king,
pawnA.Coordinates,
pawnB.Coordinates,
pawnC.Coordinates,
pawnD.Coordinates);
case "kdr":
return this.HandleDownRightPawnMove(
king,
pawnA.Coordinates,
pawnB.Coordinates,
pawnC.Coordinates,
pawnD.Coordinates);
default:
{
throw new KingSurvivalException("Invalid move!");
}
}
}
private bool IsKingUpRightMovementAvailable(King king, Pawn pawnA, Pawn pawnB, Pawn pawnC, Pawn pawnD)
{
if (king.Coordinates.Row == 0 || king.Coordinates.Column == BoardMaxColumn)
{
return false;
}
MatrixCoordinates newKingCoordinates = king.Coordinates + UpRightDirection;
bool canKingGoUpRight =
this.IsAvailableNextPosition(
newKingCoordinates,
pawnA.Coordinates,
pawnB.Coordinates,
pawnC.Coordinates,
pawnD.Coordinates);
return canKingGoUpRight;
}
private bool HasKingWon(int gameTurn, bool gameCondition, King king, Pawn pawnA, Pawn pawnB, Pawn pawnC, Pawn pawnD)
{
bool isGameEnded = gameCondition;
bool isKingOnTurn = (gameTurn % 2 == 1);
if (isGameEnded)
{
if (isKingOnTurn && king.Coordinates.Row == 0)
{
return true;
}
else
{
if (!this.CanKingMove(king, pawnA, pawnB, pawnC, pawnD))
{
return false;
}
else if (!this.CanAtLeastOnePawnMove(king, pawnA, pawnB, pawnC, pawnD))
{
return true;
}
else
{
return false;
}
}
}
else
{
return false;
}
}
private bool HandleUpRightKingMove(King king, params MatrixCoordinates[] otherPawnsCoordinates)
{
MatrixCoordinates newCoordinates = king.Coordinates + UpRightDirection;
if (king.Coordinates.Row > 0 && king.Coordinates.Column < BoardMaxColumn &&
this.IsAvailableNextPosition(newCoordinates, otherPawnsCoordinates))
{
king.Coordinates = newCoordinates;
return true;
}
else
{
throw new KingSurvivalException("Invalid move!");
}
}
private void DisplayCurrentEndOnConsole(int turn, King king, Pawn pawnA, Pawn pawnB, Pawn pawnC, Pawn pawnD)
{
if (this.isKingWinner)
{
Console.Clear();
Console.WriteLine(this.board.GetImage(king, pawnA, pawnB, pawnC, pawnD));
Console.WriteLine("King wins in {0} turns!", turn / 2);
}
else
{
Console.Clear();
Console.WriteLine(this.board.GetImage(king, pawnA, pawnB, pawnC, pawnD));
Console.WriteLine("King loses in {0} turns...", turn / 2);
}
}
private bool CanKingMove(King king, Pawn pawnA, Pawn pawnB, Pawn pawnC, Pawn pawnD)
{
bool canKingGoUpLeft = this.IsKingUpLeftMovementAvailable(king, pawnA, pawnB, pawnC, pawnD);
bool canKingGoDownLeft = this.IsKingDownLeftMovementAvailable(king, pawnA, pawnB, pawnC, pawnD);
bool canKingGoUpRight = this.IsKingUpRightMovementAvailable(king, pawnA, pawnB, pawnC, pawnD);
bool canKingGoDownRight = this.IsKingDownRightMovementAvailable(king, pawnA, pawnB, pawnC, pawnD);
bool isAnyOfKingMovesAvaiable = canKingGoDownRight || canKingGoDownLeft || canKingGoUpLeft || canKingGoUpRight;
return isAnyOfKingMovesAvaiable;
}
