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// We are making this an *immutable* class. The state that an object has when constructed is its state permanently.
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// Instead of making changes to objects we create new ones (with attemptMove() and the constructor).
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public class GameState {
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Square[] boardSquares; //Tracks the game board as a 1D array of Square objects (effectively 12 x 12) with 2 layers of sentinel squares all around.
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boolean isWhitesTurn; //Knows whose turn it is
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public GameState() {
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//Set turn to white
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isWhitesTurn = true;
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//Initialize squares with legal starting position.
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boardSquares = new Square[] {
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new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS),
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new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS),
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new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.ROOK, true), new Square(Square.KNIGHT, true), new Square(Square.BISHOP, true), new Square(Square.QUEEN, true), new Square(Square.KING, true), new Square(Square.BISHOP, true), new Square(Square.KNIGHT, true), new Square(Square.ROOK, true), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), //white
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new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.PAWN, true), new Square(Square.PAWN, true), new Square(Square.PAWN, true), new Square(Square.PAWN, true), new Square(Square.PAWN, true), new Square(Square.PAWN, true), new Square(Square.PAWN, true), new Square(Square.PAWN, true), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), //white pawns
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new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS),
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new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS),
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new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS),
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new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.EMPTY), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS),
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new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.PAWN, false), new Square(Square.PAWN, false), new Square(Square.PAWN, false), new Square(Square.PAWN, false), new Square(Square.PAWN, false), new Square(Square.PAWN, false), new Square(Square.PAWN, false), new Square(Square.PAWN, false), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), //white pawns
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new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.ROOK, false), new Square(Square.KNIGHT, false), new Square(Square.BISHOP, false), new Square(Square.QUEEN, false), new Square(Square.KING, false), new Square(Square.BISHOP, false), new Square(Square.KNIGHT, false), new Square(Square.ROOK, false), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), //black
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new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS),
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new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS), new Square(Square.OUT_OF_BOUNDS),
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};
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}
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// zero-based index for col and row. Note that -1 and -2 are valid indices into the array, just OUT_OF_BOUNDS.
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public Square getSquare(int col, int row) {
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return boardSquares[12*2 + 2 + col + row * 12];
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}
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public GameState getStateAfterMove(Move m) {
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//See if it is legal. If not, return null.
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//Create a new object based on this one, update the board state accordingly.
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return null;
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}
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public Move[] getAllPossibleMoves() {
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return null;
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}
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// returns something like "checkmate", "stalemate", etc.
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public String getFeedback() {
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return null;
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}
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}
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