Created a somewhat generic TurnBasedGame thread. Temporary UI that only works for TicTacToe rn. Added a LocalPlayer with the intent to add more players

game/src/main/java/org/toop/game/GameR.java

@@ -0,0 +1,41 @@
+package org.toop.game;
+
+import org.toop.game.interfaces.IPlayable;
+import org.toop.game.interfaces.IPlayableR;
+import org.toop.game.records.Move;
+
+import java.util.Arrays;
+
+public abstract class GameR implements IPlayableR {
+
+    public static final Integer EMPTY = null; // Constant
+
+    private final int rowSize;
+    private final int columnSize;
+    private final Integer[] board;
+
+    protected GameR(int rowSize, int columnSize) {
+        assert rowSize > 0 && columnSize > 0;
+
+        this.rowSize = rowSize;
+        this.columnSize = columnSize;
+
+        board = new Integer[rowSize * columnSize];
+        Arrays.fill(board, EMPTY);
+    }
+
+    protected GameR(GameR other) {
+        rowSize = other.rowSize;
+        columnSize = other.columnSize;
+        board = Arrays.copyOf(other.board, other.board.length);
+    }
+
+    public int getRowSize() {return this.rowSize;}
+
+    public int getColumnSize() {return this.columnSize;}
+
+    public Integer[] getBoard() {return this.board;}
+
+    protected void setBoard(int position, int player){this.board[position] = player;}
+
+}

game/src/main/java/org/toop/game/TurnBasedGameR.java

@@ -0,0 +1,31 @@
+package org.toop.game;
+
+public abstract class TurnBasedGameR extends GameR {
+    private final int playerCount;  // How many players are playing
+    private int turn = 0;           // What turn it is in the game
+
+    protected TurnBasedGameR(int rowSize, int columnSize, int playerCount) {
+        super(rowSize, columnSize);
+        this.playerCount = playerCount;
+    }
+
+    protected TurnBasedGameR(TurnBasedGameR other) {
+        super(other);
+        playerCount = other.playerCount;
+        turn = other.turn;
+    }
+
+    public int getPlayerCount(){return this.playerCount;}
+
+    protected void nextTurn() {
+        turn += 1;
+    }
+
+    public int getCurrentTurn() {
+        return turn % playerCount;
+    }
+
+    protected void setBoard(int position) {
+        super.setBoard(position, getCurrentTurn());
+    }
+}

game/src/main/java/org/toop/game/interfaces/IPlayableR.java

@@ -0,0 +1,9 @@
+package org.toop.game.interfaces;
+
+import org.toop.game.enumerators.GameState;
+import org.toop.game.records.Move;
+
+public interface IPlayableR {
+    Integer[] getLegalMoves();
+    GameState play(int move);
+}

game/src/main/java/org/toop/game/tictactoe/TicTacToeR.java

@@ -0,0 +1,103 @@
+package org.toop.game.tictactoe;
+
+import org.toop.game.TurnBasedGame;
+import org.toop.game.TurnBasedGameR;
+import org.toop.game.enumerators.GameState;
+import org.toop.game.records.Move;
+
+import java.util.ArrayList;
+import java.util.Objects;
+
+public final class TicTacToeR extends TurnBasedGameR {
+    private int movesLeft;
+
+    public TicTacToeR() {
+        super(3, 3, 2);
+        movesLeft = this.getBoard().length;
+    }
+
+    public TicTacToeR(TicTacToeR other) {
+        super(other);
+        movesLeft = other.movesLeft;
+    }
+
+    @Override
+    public Integer[] getLegalMoves() {
+        final ArrayList<Integer> legalMoves = new ArrayList<Integer>();
+        final char currentValue = getCurrentValue();
+
+        for (int i = 0; i < this.getBoard().length; i++) {
+            if (Objects.equals(this.getBoard()[i], EMPTY)) {
+                legalMoves.add(i);
+            }
+        }
+
+        return legalMoves.toArray(new Integer[0]);
+    }
+
+    @Override
+    public GameState play(int move) {
+        assert move >= 0 && move < this.getBoard().length;
+
+        // TODO: Make sure this move is allowed, maybe on the board side?
+        this.setBoard(move);
+        movesLeft--;
+        nextTurn();
+
+        if (checkForWin()) {
+            return GameState.WIN;
+        }
+
+        if (movesLeft <= 2) {
+            if (movesLeft <= 0 || checkForEarlyDraw()) {
+                return GameState.DRAW;
+            }
+        }
+
+        return GameState.NORMAL;
+    }
+
+    private boolean checkForWin() {
+        // Horizontal
+        for (int i = 0; i < 3; i++) {
+            final int index = i * 3;
+
+            if (!Objects.equals(this.getBoard()[index], EMPTY)
+                    && Objects.equals(this.getBoard()[index], this.getBoard()[index + 1])
+                    && Objects.equals(this.getBoard()[index], this.getBoard()[index + 2])) {
+                return true;
+            }
+        }
+
+        // Vertical
+        for (int i = 0; i < 3; i++) {
+            if (!Objects.equals(this.getBoard()[i], EMPTY) && Objects.equals(this.getBoard()[i], this.getBoard()[i + 3]) && Objects.equals(this.getBoard()[i], this.getBoard()[i + 6])) {
+                return true;
+            }
+        }
+
+        // B-Slash
+        if (!Objects.equals(this.getBoard()[0], EMPTY) && Objects.equals(this.getBoard()[0], this.getBoard()[4]) && Objects.equals(this.getBoard()[0], this.getBoard()[8])) {
+            return true;
+        }
+
+        // F-Slash
+        return !Objects.equals(this.getBoard()[2], EMPTY) && Objects.equals(this.getBoard()[2], this.getBoard()[4]) && Objects.equals(this.getBoard()[2], this.getBoard()[6]);
+    }
+
+    private boolean checkForEarlyDraw() {
+        for (final int move : this.getLegalMoves()) {
+            final TicTacToeR copy = new TicTacToeR(this);
+
+            if (copy.play(move) == GameState.WIN || !copy.checkForEarlyDraw()) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    private char getCurrentValue() {
+        return this.getCurrentTurn() == 0 ? 'X' : 'O';
+    }
+}