//Handles the turn of a given player use arrow keys to move cursor and select a position on the board and then 'Enter' or 'Space' to select it.
//If the move is possible then the given player's piece will be placed on the board and the board will update.
//'S' can be pressed to skip the player's turn if he/she so chooses.
private void PlayerTurn(State playerState)
{
bool turnIsOver = false;
string initialTurnStatus;
string turnStatus;
string playerSymbol;
string enemySymbol;
//Sets up initial variables based on the given State of the player.
if (playerState == State.Cross)
{
initialTurnStatus = "\nPlayer 1's turn:\nPress 'Enter' or 'Space' to place piece.\nIf unable to make a move press 'S' to skip turn.";
turnStatus = initialTurnStatus;
playerSymbol = "X";
enemySymbol = "O";
}
else
{
initialTurnStatus = "\nPlayer 2's turn:\nPress 'Enter' or 'Space' to place piece.\nIf unable to make a move press 'S' to skip turn.";
turnStatus = initialTurnStatus;
playerSymbol = "O";
enemySymbol = "X";
}
//Loops until a either a valid move is made or if the player skips his/her turn.
while (!turnIsOver)
{
Console.Clear();
_board.DrawBoard();
Console.WriteLine(turnStatus);
const int cursorOffsetLeft = 3;
const int cursorOffsetTop = 1;
int cLeft = cursorOffsetLeft;
int cTop = cursorOffsetTop;
bool piecePlaced = false;
bool skipPressed = false;
Position selectedPos = new Position((cLeft / cursorOffsetLeft) - 1, (cTop / cursorOffsetTop) - 1);
do
{
while (!Console.KeyAvailable)
{
Console.SetCursorPosition(cLeft, cTop);
Console.Write(playerSymbol);
if (_board.GetStateAt(selectedPos) == State.Circle)
{
Console.SetCursorPosition(cLeft, cTop);
Console.Write(enemySymbol);
}
}
switch (Console.ReadKey().Key)
{
case ConsoleKey.UpArrow:
{
cTop -= cursorOffsetTop;
if (cTop <= 0)
{
cTop += cursorOffsetTop;
}
break;
}
case ConsoleKey.DownArrow:
{
cTop += cursorOffsetTop;
if (cTop > cursorOffsetTop * _board.SideDimensions)
{
cTop -= cursorOffsetTop;
}
break;
}
case ConsoleKey.LeftArrow:
{
cLeft -= cursorOffsetLeft;
if (cLeft <= 0)
{
cLeft += cursorOffsetLeft;
}
break;
}
case ConsoleKey.RightArrow:
{
cLeft += cursorOffsetLeft;
if (cLeft > cursorOffsetLeft * _board.SideDimensions)
{
cLeft -= cursorOffsetLeft;
}
break;
}
case ConsoleKey.Enter:
case ConsoleKey.Spacebar:
{
piecePlaced = true;
break;
}
case ConsoleKey.S:
{
skipPressed = true;
break;
}
default:
{
break;
}
}
selectedPos = new Position((cLeft / cursorOffsetLeft) - 1, (cTop / cursorOffsetTop) - 1);
Console.SetCursorPosition(0, 0);
_board.DrawBoard();
Console.WriteLine(turnStatus);
}while (!piecePlaced && !skipPressed);
if (skipPressed)
{
break;
}
//Move is valid if it's on an empty space, adjacent to an enemy piece, and if it surrounds(captures) an enemy piece.
else if (!_board.IsEmptyAt(selectedPos))
{
turnStatus = "\nSpace is already occupied!\n" + initialTurnStatus;
continue;
}
else if (!_board.IsAdjacentToEnemyPiece(selectedPos, playerState))
{
turnStatus = "\nPiece is not adjacent to any opponent pieces!\n" + initialTurnStatus;
continue;
}
else if (_board.AttemptPlacePieceAt(selectedPos, playerState))
{
turnIsOver = true;
Console.Clear();
_board.DrawBoard();
}
else
{
turnStatus = "\nCan not capture any opponent pieces from this position!\n" + initialTurnStatus;
continue;
}
}
}