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Merge branch 'Development' into ReversiML

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# Conflicts:
#	game/src/main/java/org/toop/game/games/reversi/ReversiR.java
This commit is contained in:
Ticho Hidding
2025-12-13 15:04:40 +01:00
parent 03dc6130e2 1ae79daef0
commit ffdec38e5d
71 changed files with 1608 additions and 1823 deletions
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86
game/src/main/java/org/toop/game/BitboardGame.java Normal file
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@@ -0,0 +1,86 @@
package org.toop.game;
import org.toop.framework.gameFramework.model.game.TurnBasedGame;
import org.toop.framework.gameFramework.model.player.Player;
import java.util.Arrays;
import java.util.concurrent.atomic.AtomicInteger;
// There is AI performance to be gained by getting rid of non-primitives and thus speeding up deepCopy
public abstract class BitboardGame<T extends BitboardGame<T>> implements TurnBasedGame<T> {
private final int columnSize;
private final int rowSize;
private Player<T>[] players;
// long is 64 bits. Every game has a limit of 64 cells maximum.
private final long[] playerBitboard;
private int currentTurn = 0;
public BitboardGame(int columnSize, int rowSize, int playerCount, Player<T>[] players) {
this.columnSize = columnSize;
this.rowSize = rowSize;
this.players = players;
this.playerBitboard = new long[playerCount];
Arrays.fill(playerBitboard, 0L);
}
public BitboardGame(BitboardGame<T> other) {
this.columnSize = other.columnSize;
this.rowSize = other.rowSize;
this.playerBitboard = other.playerBitboard.clone();
this.currentTurn = other.currentTurn;
this.players = Arrays.stream(other.players)
.map(Player<T>::deepCopy)
.toArray(Player[]::new);
}
public int getColumnSize() {
return this.columnSize;
}
public int getRowSize() {
return this.rowSize;
}
public long getPlayerBitboard(int player) {
return this.playerBitboard[player];
}
public void setPlayerBitboard(int player, long bitboard) {
this.playerBitboard[player] = bitboard;
}
public int getPlayerCount() {
return playerBitboard.length;
}
public int getCurrentTurn() {
return getCurrentPlayerIndex();
}
public Player<T> getPlayer(int index) {return players[index];}
public int getCurrentPlayerIndex() {
return currentTurn % playerBitboard.length;
}
public int getNextPlayer() {
return (currentTurn + 1) % playerBitboard.length;
}
public Player<T> getCurrentPlayer(){
return players[getCurrentPlayerIndex()];
}
@Override
public long[] getBoard() {return this.playerBitboard;}
public void nextTurn() {
currentTurn++;
}
}

15
game/src/main/java/org/toop/game/gameThreads/LocalFixedRateThreadBehaviour.java
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@@ -8,6 +8,8 @@ import org.toop.framework.gameFramework.view.GUIEvents;
import org.toop.framework.gameFramework.model.game.TurnBasedGame;
import org.toop.framework.gameFramework.model.player.Player;
import java.util.function.Consumer;
/**
* Handles local turn-based game logic at a fixed update rate.
* <p>
@@ -16,18 +18,14 @@ import org.toop.framework.gameFramework.model.player.Player;
*/
public class LocalFixedRateThreadBehaviour<T extends TurnBasedGame<T>> extends AbstractThreadBehaviour<T> implements Runnable {
/** All players participating in the game. */
private final Player<T>[] players;
/**
* Creates a fixed-rate behaviour for a local turn-based game.
*
* @param game the game instance
* @param players the list of players in turn order
*/
public LocalFixedRateThreadBehaviour(T game, Player<T>[] players) {
public LocalFixedRateThreadBehaviour(T game) {
super(game);
this.players = players;
}
/** Starts the game loop thread if not already running. */
@@ -52,7 +50,7 @@ public class LocalFixedRateThreadBehaviour<T extends TurnBasedGame<T>> extends A
*/
@Override
public void run() {
final int UPS = 60;
final int UPS = 1;
final long UPDATE_INTERVAL = 1_000_000_000L / UPS;
long nextUpdate = System.nanoTime();
@@ -62,9 +60,10 @@ public class LocalFixedRateThreadBehaviour<T extends TurnBasedGame<T>> extends A
nextUpdate += UPDATE_INTERVAL;
Player<T> currentPlayer = game.getPlayer(game.getCurrentTurn());
int move = currentPlayer.getMove(game.deepCopy());
long move = currentPlayer.getMove(game.deepCopy());
PlayResult result = game.play(move);
new EventFlow().addPostEvent(GUIEvents.RefreshGameCanvas.class).postEvent();
updateUI();
GameState state = result.state();
switch (state) {

10
game/src/main/java/org/toop/game/gameThreads/LocalThreadBehaviour.java
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@@ -8,6 +8,8 @@ import org.toop.framework.gameFramework.GameState;
import org.toop.framework.gameFramework.model.game.TurnBasedGame;
import org.toop.framework.gameFramework.model.player.Player;
import java.util.function.Consumer;
/**
* Handles local turn-based game logic in its own thread.
* <p>
@@ -20,9 +22,8 @@ public class LocalThreadBehaviour<T extends TurnBasedGame<T>> extends AbstractTh
* Creates a new behaviour for a local turn-based game.
*
* @param game the game instance
* @param players the list of players in turn order
*/
public LocalThreadBehaviour(T game, Player<T>[] players) {
public LocalThreadBehaviour(T game) {
super(game);
}
@@ -48,9 +49,10 @@ public class LocalThreadBehaviour<T extends TurnBasedGame<T>> extends AbstractTh
public void run() {
while (isRunning.get()) {
Player<T> currentPlayer = game.getPlayer(game.getCurrentTurn());
int move = currentPlayer.getMove(game.deepCopy());
long move = currentPlayer.getMove(game.deepCopy());
PlayResult result = game.play(move);
new EventFlow().addPostEvent(GUIEvents.RefreshGameCanvas.class).postEvent();
updateUI();
GameState state = result.state();
switch (state) {

35
game/src/main/java/org/toop/game/gameThreads/OnlineThreadBehaviour.java
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@@ -3,9 +3,7 @@ package org.toop.game.gameThreads;
import org.toop.framework.eventbus.EventFlow;
import org.toop.framework.gameFramework.model.game.threadBehaviour.AbstractThreadBehaviour;
import org.toop.framework.gameFramework.view.GUIEvents;
import org.toop.framework.gameFramework.model.game.AbstractGame;
import org.toop.framework.gameFramework.model.game.TurnBasedGame;
import org.toop.framework.networking.events.NetworkEvents;
import org.toop.framework.gameFramework.model.game.SupportsOnlinePlay;
import org.toop.framework.gameFramework.model.player.Player;
import org.toop.game.players.OnlinePlayer;
@@ -17,19 +15,12 @@ import org.toop.game.players.OnlinePlayer;
* for the local player while receiving moves from other players.
*/
public class OnlineThreadBehaviour<T extends TurnBasedGame<T>> extends AbstractThreadBehaviour<T> implements SupportsOnlinePlay {
/** The local player controlled by this client. */
private final Player<T> mainPlayer;
private final int playerTurn;
/**
* Creates behaviour and sets the first local player
* (non-online player) from the given array.
*/
public OnlineThreadBehaviour(T game, Player<T>[] players) {
public OnlineThreadBehaviour(T game) {
super(game);
this.playerTurn = getFirstNotOnlinePlayer(players);
this.mainPlayer = players[this.playerTurn];
}
/** Finds the first non-online player in the array. */
@@ -59,33 +50,31 @@ public class OnlineThreadBehaviour<T extends TurnBasedGame<T>> extends AbstractT
* Sends the generated move back to the server.
*/
@Override
public void onYourTurn(NetworkEvents.YourTurnResponse event) {
public void onYourTurn(long clientId) {
if (!isRunning.get()) return;
int move = mainPlayer.getMove(game.deepCopy());
new EventFlow().addPostEvent(NetworkEvents.SendMove.class, event.clientId(), (short) move).postEvent();
long move = game.getPlayer(game.getCurrentTurn()).getMove(game.deepCopy());
sendMove(clientId, move);
}
/**
* Handles a move received from the server for any player.
* Updates the game state and triggers a UI refresh.
*/
@Override
public void onMoveReceived(NetworkEvents.GameMoveResponse event) {
public void onMoveReceived(long move) {
if (!isRunning.get()) return;
game.play(Integer.parseInt(event.move()));
new EventFlow().addPostEvent(GUIEvents.RefreshGameCanvas.class).postEvent();
game.play(move);
updateUI();
}
/**
* Handles the end of the game as notified by the server.
* Updates the UI to show a win or draw result for the local player.
*/
@Override
public void gameFinished(NetworkEvents.GameResultResponse event) {
switch(event.condition().toUpperCase()){
case "WIN" -> new EventFlow().addPostEvent(GUIEvents.GameEnded.class, true, playerTurn).postEvent();
case "DRAW" -> new EventFlow().addPostEvent(GUIEvents.GameEnded.class, false, AbstractGame.EMPTY).postEvent();
case "LOSS" -> new EventFlow().addPostEvent(GUIEvents.GameEnded.class, true, (playerTurn + 1)%2).postEvent();
public void gameFinished(String condition) {
switch(condition.toUpperCase()){
case "WIN", "LOSS" -> new EventFlow().addPostEvent(GUIEvents.GameEnded.class, true, game.getWinner()).postEvent();
case "DRAW" -> new EventFlow().addPostEvent(GUIEvents.GameEnded.class, false, -1).postEvent();
default -> {
logger.error("Invalid condition");
throw new RuntimeException("Unknown condition");

18
game/src/main/java/org/toop/game/gameThreads/OnlineWithSleepThreadBehaviour.java
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@@ -1,8 +1,7 @@
package org.toop.game.gameThreads;
import org.toop.framework.gameFramework.model.game.AbstractGame;
import org.toop.framework.gameFramework.model.game.TurnBasedGame;
import org.toop.framework.networking.events.NetworkEvents;
import org.toop.framework.gameFramework.model.player.AbstractPlayer;
/**
* Online thread behaviour that adds a fixed delay before processing
@@ -11,16 +10,15 @@ import org.toop.framework.gameFramework.model.player.AbstractPlayer;
* This is identical to {@link OnlineThreadBehaviour}, but inserts a
* short sleep before delegating to the base implementation.
*/
public class OnlineWithSleepThreadBehaviour extends OnlineThreadBehaviour {
public class OnlineWithSleepThreadBehaviour<T extends TurnBasedGame<T>> extends OnlineThreadBehaviour<T> {
/**
* Creates the behaviour and forwards the players to the base class.
*
* @param game the online-capable turn-based game
* @param players the list of local and remote players
* @param game the online-capable turn-based game
*/
public OnlineWithSleepThreadBehaviour(AbstractGame game, AbstractPlayer[] players) {
super(game, players);
public OnlineWithSleepThreadBehaviour(T game) {
super(game);
}
/**
@@ -29,14 +27,14 @@ public class OnlineWithSleepThreadBehaviour extends OnlineThreadBehaviour {
* @param event the network event indicating it's this client's turn
*/
@Override
public void onYourTurn(NetworkEvents.YourTurnResponse event) {
public void onYourTurn(long clientId) {
try {
Thread.sleep(1000);
Thread.sleep(50);
} catch (InterruptedException e) {
e.printStackTrace();
}
super.onYourTurn(event);
super.onYourTurn(clientId);
}
}

170
game/src/main/java/org/toop/game/games/reversi/BitboardReversi.java Normal file
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@@ -0,0 +1,170 @@
package org.toop.game.games.reversi;
import org.toop.framework.gameFramework.GameState;
import org.toop.framework.gameFramework.model.game.PlayResult;
import org.toop.framework.gameFramework.model.player.Player;
import org.toop.game.BitboardGame;
public class BitboardReversi extends BitboardGame<BitboardReversi> {
public record Score(int black, int white) {}
private final long notAFile = 0xfefefefefefefefeL;
private final long notHFile = 0x7f7f7f7f7f7f7f7fL;
public BitboardReversi(Player<BitboardReversi>[] players) {
super(8, 8, 2, players);
// Black (player 0)
setPlayerBitboard(0, (1L << (3 + 4 * 8)) | (1L << (4 + 3 * 8)));
// White (player 1)
setPlayerBitboard(1, (1L << (3 + 3 * 8)) | (1L << (4 + 4 * 8)));
}
public BitboardReversi(BitboardReversi other) {
super(other);
}
public long getLegalMoves() {
final long player = getPlayerBitboard(getCurrentPlayerIndex());
final long opponent = getPlayerBitboard(getNextPlayer());
long legalMoves = 0L;
// north & south
legalMoves |= computeMoves(player, opponent, 8, -1L);
legalMoves |= computeMoves(player, opponent, -8, -1L);
// east & west
legalMoves |= computeMoves(player, opponent, 1, notAFile);
legalMoves |= computeMoves(player, opponent, -1, notHFile);
// north-east & north-west & south-east & south-west
legalMoves |= computeMoves(player, opponent, 9, notAFile);
legalMoves |= computeMoves(player, opponent, 7, notHFile);
legalMoves |= computeMoves(player, opponent, -7, notAFile);
legalMoves |= computeMoves(player, opponent, -9, notHFile);
return legalMoves;
}
public long getFlips(long move) {
final long player = getPlayerBitboard(getCurrentPlayerIndex());
final long opponent = getPlayerBitboard(getNextPlayer());
long flips = 0L;
// north & south
flips |= computeFlips(move, player, opponent, 8, -1L);
flips |= computeFlips(move, player, opponent, -8, -1L);
// east & west
flips |= computeFlips(move, player, opponent, 1, notAFile);
flips |= computeFlips(move, player, opponent, -1, notHFile);
// north-east & north-west & south-east & south-west
flips |= computeFlips(move, player, opponent, 9, notAFile);
flips |= computeFlips(move, player, opponent, 7, notHFile);
flips |= computeFlips(move, player, opponent, -7, notAFile);
flips |= computeFlips(move, player, opponent, -9, notHFile);
return flips;
}
@Override
public BitboardReversi deepCopy() {return new BitboardReversi(this);}
public PlayResult play(long move) {
final long flips = getFlips(move);
long player = getPlayerBitboard(getCurrentPlayerIndex());
long opponent = getPlayerBitboard(getNextPlayer());
player |= move | flips;
opponent &= ~flips;
setPlayerBitboard(getCurrentPlayerIndex(), player);
setPlayerBitboard(getNextPlayer(), opponent);
nextTurn();
final long nextLegalMoves = getLegalMoves();
if (nextLegalMoves == 0) {
nextTurn();
final long skippedLegalMoves = getLegalMoves();
if (skippedLegalMoves == 0) {
int winner = getWinner();
if (winner == -1) {
return new PlayResult(GameState.DRAW, -1);
}
return new PlayResult(GameState.WIN, winner);
}
return new PlayResult(GameState.TURN_SKIPPED, getCurrentPlayerIndex());
}
return new PlayResult(GameState.NORMAL, getCurrentPlayerIndex());
}
public Score getScore() {
return new Score(
Long.bitCount(getPlayerBitboard(0)),
Long.bitCount(getPlayerBitboard(1))
);
}
public int getWinner(){
final long black = getPlayerBitboard(0);
final long white = getPlayerBitboard(1);
final int blackCount = Long.bitCount(black);
final int whiteCount = Long.bitCount(white);
if (blackCount == whiteCount){
return -1;
}
else if (blackCount > whiteCount){
return 0;
}
else{
return 1;
}
}
private long computeMoves(long player, long opponent, int shift, long mask) {
long moves = shift(player, shift, mask) & opponent;
long captured = moves;
while (moves != 0) {
moves = shift(moves, shift, mask) & opponent;
captured |= moves;
}
long landing = shift(captured, shift, mask);
return landing & ~(player | opponent);
}
private long computeFlips(long move, long player, long opponent, int shift, long mask) {
long flips = 0L;
long pos = move;
while (true) {
pos = shift(pos, shift, mask);
if (pos == 0) return 0L;
if ((pos & opponent) != 0) flips |= pos;
else if ((pos & player) != 0) return flips;
else return 0L;
}
}
private long shift(long bit, int shift, long mask) {
return shift > 0 ? (bit << shift) & mask : (bit >>> -shift) & mask;
}
}

15
game/src/main/java/org/toop/game/games/reversi/ReversiAIR.java
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@@ -1,15 +0,0 @@
package org.toop.game.games.reversi;
import org.toop.framework.gameFramework.model.player.AbstractAI;
import java.util.Random;
public final class ReversiAIR extends AbstractAI<ReversiR> {
public int getMove(ReversiR game) {
int[] moves = game.getLegalMoves();
if (moves.length == 0) return -1;
int inty = new Random().nextInt(0, moves.length);
return moves[inty];
}
}

277
game/src/main/java/org/toop/game/games/reversi/ReversiR.java
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@@ -1,277 +0,0 @@
package org.toop.game.games.reversi;
import org.toop.framework.gameFramework.GameState;
import org.toop.framework.gameFramework.model.game.PlayResult;
import org.toop.framework.gameFramework.model.game.AbstractGame;
import org.toop.framework.gameFramework.model.player.Player;
import java.awt.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
public final class ReversiR extends AbstractGame<ReversiR> {
private int movesTaken;
private Set<Point> filledCells = new HashSet<>();
private int[] mostRecentlyFlippedPieces;
@Override
public ReversiR deepCopy() {
return new ReversiR(this);
}
// TODO: Don't hardcore for two players :)
public record Score(int player1Score, int player2Score) {}
public ReversiR(Player<ReversiR>[] players) {
super(8, 8, 2, players);
addStartPieces();
}
public ReversiR(ReversiR other) {
super(other);
this.movesTaken = other.movesTaken;
this.filledCells = other.filledCells;
this.mostRecentlyFlippedPieces = other.mostRecentlyFlippedPieces;
}
private void addStartPieces() {
this.setBoard(27, 1);
this.setBoard(28, 0);
this.setBoard(35, 0);
this.setBoard(36, 1);
updateFilledCellsSet();
}
private void updateFilledCellsSet() {
for (int i = 0; i < 64; i++) {
if (this.getBoard()[i] != EMPTY) {
filledCells.add(new Point(i % this.getColumnSize(), i / this.getRowSize()));
}
}
}
@Override
public int[] getLegalMoves() {
final ArrayList<Integer> legalMoves = new ArrayList<>();
int[][] boardGrid = makeBoardAGrid();
int currentPlayer = this.getCurrentTurn();
Set<Point> adjCell = getAdjacentCells(boardGrid);
for (Point point : adjCell){
int[] moves = getFlipsForPotentialMove(point,currentPlayer);
int score = moves.length;
if (score > 0){
legalMoves.add(point.x + point.y * this.getRowSize());
}
}
return legalMoves.stream().mapToInt(Integer::intValue).toArray();
}
private Set<Point> getAdjacentCells(int[][] boardGrid) {
Set<Point> possibleCells = new HashSet<>();
for (Point point : filledCells) { //for every filled cell
for (int deltaColumn = -1; deltaColumn <= 1; deltaColumn++){ //check adjacent cells
for (int deltaRow = -1; deltaRow <= 1; deltaRow++){ //orthogonally and diagonally
int newX = point.x + deltaColumn, newY = point.y + deltaRow;
if (deltaColumn == 0 && deltaRow == 0 //continue if out of bounds
|| !isOnBoard(newX, newY)) {
continue;
}
if (boardGrid[newY][newX] == EMPTY) { //check if the cell is empty
possibleCells.add(new Point(newX, newY)); //and then add it to the set of possible moves
}
}
}
}
return possibleCells;
}
public int[] getFlipsForPotentialMove(Point point, int currentPlayer) {
final ArrayList<Integer> movesToFlip = new ArrayList<>();
for (int deltaColumn = -1; deltaColumn <= 1; deltaColumn++) { //for all directions
for (int deltaRow = -1; deltaRow <= 1; deltaRow++) {
if (deltaColumn == 0 && deltaRow == 0){
continue;
}
int[] moves = getFlipsInDirection(point,makeBoardAGrid(),currentPlayer,deltaColumn,deltaRow);
if (moves != null) { //getFlipsInDirection
Arrays.stream(moves).forEach(movesToFlip::add);
}
}
}
return movesToFlip.stream().mapToInt(Integer::intValue).toArray();
}
private int[] getFlipsInDirection(Point point, int[][] boardGrid, int currentPlayer, int dirX, int dirY) {
int opponent = getOpponent(currentPlayer);
final ArrayList<Integer> movesToFlip = new ArrayList<>();
int x = point.x + dirX;
int y = point.y + dirY;
if (!isOnBoard(x, y) || boardGrid[y][x] != opponent) { //there must first be an opponents tile
return null;
}
while (isOnBoard(x, y) && boardGrid[y][x] == opponent) { //count the opponents tiles in this direction
movesToFlip.add(x+y*this.getRowSize());
x += dirX;
y += dirY;
}
if (isOnBoard(x, y) && boardGrid[y][x] == currentPlayer) {
return movesToFlip.stream().mapToInt(Integer::intValue).toArray(); //only return the count if last tile is ours
}
return null;
}
private boolean isOnBoard(int x, int y) {
return x >= 0 && x < this.getColumnSize() && y >= 0 && y < this.getRowSize();
}
private int[][] makeBoardAGrid() {
int[][] boardGrid = new int[this.getRowSize()][this.getColumnSize()];
for (int i = 0; i < 64; i++) {
boardGrid[i / this.getRowSize()][i % this.getColumnSize()] = this.getBoard()[i]; //boardGrid[y -> row] [x -> column]
}
return boardGrid;
}
private boolean gameOver(){
ReversiR gameCopy = deepCopy();
return gameCopy.getLegalMoves().length == 0 && gameCopy.skipTurn().getLegalMoves().length == 0;
}
@Override
public PlayResult play(int move) {
/*int[] legalMoves = getLegalMoves();
boolean moveIsLegal = false;
for (int legalMove : legalMoves) { //check if the move is legal
if (move == legalMove) {
moveIsLegal = true;
break;
}
}
if (!moveIsLegal) {
return null;
}
int[] moves = sortMovesFromCenter(Arrays.stream(getFlipsForPotentialMove(new Point(move%this.getColumnSize(),move/this.getRowSize()), getCurrentTurn())).boxed().toArray(Integer[]::new),move);
mostRecentlyFlippedPieces = moves;
this.setBoard(move); //place the move on the board
for (int m : moves) {
this.setBoard(m); //flip the correct pieces on the board
}
filledCells.add(new Point(move % this.getRowSize(), move / this.getColumnSize()));
nextTurn();
if (getLegalMoves().length == 0) { //skip the players turn when there are no legal moves
skipMyTurn();
if (getLegalMoves().length > 0) {
return new PlayResult(GameState.TURN_SKIPPED, getCurrentTurn());
}
else { //end the game when neither player has a legal move
Score score = getScore();
if (score.player1Score() == score.player2Score()) {
return new PlayResult(GameState.DRAW, EMPTY);
}
else {
return new PlayResult(GameState.WIN, getCurrentTurn());
}
}
}
return new PlayResult(GameState.NORMAL, EMPTY);*/
// Check if move is legal
if (!contains(getLegalMoves(), move)){
// Next person wins
return new PlayResult(GameState.WIN, (getCurrentTurn() + 1) % 2);
}
// Move is legal, proceed as normal
int[] moves = sortMovesFromCenter(Arrays.stream(getFlipsForPotentialMove(new Point(move%this.getColumnSize(),move/this.getRowSize()), getCurrentTurn())).boxed().toArray(Integer[]::new),move);
mostRecentlyFlippedPieces = moves;
this.setBoard(move); //place the move on the board
for (int m : moves) {
this.setBoard(m); //flip the correct pieces on the board
}
filledCells.add(new Point(move % this.getRowSize(), move / this.getColumnSize()));
nextTurn();
// Check for forced turn skip
if (getLegalMoves().length == 0){
PlayResult result;
// Check if next turn is also a force skip
if (deepCopy().skipTurn().getLegalMoves().length == 0){
// Game over
int winner = getWinner();
result = new PlayResult(winner == EMPTY ? GameState.DRAW : GameState.WIN, winner);
}else{
// Turn skipped
result = new PlayResult(GameState.TURN_SKIPPED, getCurrentTurn());
skipTurn();
}
return result;
}
return new PlayResult(GameState.NORMAL, EMPTY);
}
private ReversiR skipTurn(){
nextTurn();
return this;
}
private int getOpponent(int currentPlayer){
return (currentPlayer + 1)%2;
}
public int getWinner(){
int player1Score = 0, player2Score = 0;
for (int count = 0; count < this.getRowSize() * this.getColumnSize(); count++) {
if (this.getBoard()[count] == 0) {
player1Score += 1;
}
if (this.getBoard()[count] == 1) {
player2Score += 1;
}
}
return player1Score == player2Score? -1 : player1Score > player2Score ? 0 : 1;
}
private int[] sortMovesFromCenter(Integer[] moves, int center) { //sorts the pieces to be flipped for animation purposes
int centerX = center%this.getColumnSize();
int centerY = center/this.getRowSize();
Arrays.sort(moves, (a, b) -> {
int dxA = a%this.getColumnSize() - centerX;
int dyA = a/this.getRowSize() - centerY;
int dxB = b%this.getColumnSize() - centerX;
int dyB = b/this.getRowSize() - centerY;
int distA = dxA * dxA + dyA * dyA;
int distB = dxB * dxB + dyB * dyB;
return Integer.compare(distA, distB);
});
return Arrays.stream(moves).mapToInt(Integer::intValue).toArray();
}
public int[] getMostRecentlyFlippedPieces() {
return mostRecentlyFlippedPieces;
}
public Score getScore() {
int[] board = getBoard();
int p1 = 0;
int p2 = 0;
for (int i = 0; i < this.getColumnSize() * this.getRowSize(); i++) {
if (board[i] == 1) {
p1 += 1;
}
if (board[i] == 2) {
p2 += 1;
}
}
return new Score(p1, p2);
}
}

103
game/src/main/java/org/toop/game/games/tictactoe/BitboardTicTacToe.java Normal file
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@@ -0,0 +1,103 @@
package org.toop.game.games.tictactoe;
import org.toop.framework.gameFramework.GameState;
import org.toop.framework.gameFramework.model.game.PlayResult;
import org.toop.framework.gameFramework.model.player.Player;
import org.toop.game.BitboardGame;
public class BitboardTicTacToe extends BitboardGame<BitboardTicTacToe> {
private final long[] winningLines = {
0b111000000L, // top row
0b000111000L, // middle row
0b000000111L, // bottom row
0b100100100L, // left column
0b010010010L, // middle column
0b001001001L, // right column
0b100010001L, // diagonal
0b001010100L // anti-diagonal
};
public BitboardTicTacToe(Player<BitboardTicTacToe>[] players) {
super(3, 3, 2, players);
}
public BitboardTicTacToe(BitboardTicTacToe other) {
super(other);
}
public long getLegalMoves() {
final long xBitboard = getPlayerBitboard(0);
final long oBitboard = getPlayerBitboard(1);
final long taken = (xBitboard | oBitboard);
return (~taken) & 0x1ffL;
}
public int getWinner(){
return getCurrentPlayerIndex();
}
public PlayResult play(long move) {
// Player loses if move is invalid
if ((move & getLegalMoves()) == 0 || Long.bitCount(move) != 1){
return new PlayResult(GameState.WIN, getNextPlayer());
}
// Move is legal, make move
long playerBitboard = getPlayerBitboard(getCurrentPlayerIndex());
playerBitboard |= move;
setPlayerBitboard(getCurrentPlayerIndex(), playerBitboard);
// Check if current player won
if (checkWin(playerBitboard)) {
return new PlayResult(GameState.WIN, getCurrentPlayerIndex());
}
// Proceed to next turn
nextTurn();
// Check for early draw
if (getLegalMoves() == 0L || checkEarlyDraw()) {
return new PlayResult(GameState.DRAW, -1);
}
// Nothing weird happened, continue on as normal
return new PlayResult(GameState.NORMAL, -1);
}
private boolean checkWin(long board) {
for (final long line : winningLines) {
if ((board & line) == line) {
return true;
}
}
return false;
}
private boolean checkEarlyDraw() {
final long xBitboard = getPlayerBitboard(0);
final long oBitboard = getPlayerBitboard(1);
final long taken = (xBitboard | oBitboard);
final long empty = (~taken) & 0x1FFL;
for (final long line : winningLines) {
if (((line & xBitboard) != 0 && (line & oBitboard) != 0)) {
continue;
}
if ((line & empty) != 0) {
return false;
}
}
return true;
}
@Override
public BitboardTicTacToe deepCopy() {
return new BitboardTicTacToe(this);
}
}

108
game/src/main/java/org/toop/game/games/tictactoe/TicTacToeAIR.java
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@@ -1,108 +0,0 @@
package org.toop.game.games.tictactoe;
import org.toop.framework.gameFramework.model.player.AbstractAI;
import org.toop.framework.gameFramework.model.game.PlayResult;
import org.toop.framework.gameFramework.GameState;
/**
* AI implementation for playing Tic-Tac-Toe.
* <p>
* This AI uses a recursive minimax-like strategy with a limited depth to
* evaluate moves. It attempts to maximize its chances of winning while
* minimizing the opponent's opportunities. Random moves are used in the
* opening or when no clear best move is found.
* </p>
*/
public class TicTacToeAIR extends AbstractAI<TicTacToeR> {
/**
* Determines the best move for the given Tic-Tac-Toe game state.
* <p>
* Uses a depth-limited recursive strategy to score each legal move and
* selects the move with the highest score. If no legal moves are available,
* returns -1. If multiple moves are equally good, picks one randomly.
* </p>
*
* @param game the current Tic-Tac-Toe game state
* @param depth the depth of lookahead for evaluating moves (non-negative)
* @return the index of the best move, or -1 if no moves are available
*/
private int depth;
public TicTacToeAIR(int depth) {
this.depth = depth;
}
public int getMove(TicTacToeR game) {
assert game != null;
final int[] legalMoves = game.getLegalMoves();
// If there are no moves, return -1
if (legalMoves.length == 0) {
return -1;
}
// If first move, pick a corner
if (legalMoves.length == 9) {
return switch ((int)(Math.random() * 4)) {
case 0 -> legalMoves[2];
case 1 -> legalMoves[6];
case 2 -> legalMoves[8];
default -> legalMoves[0];
};
}
int bestScore = -depth;
int bestMove = -1;
// Calculate Move score of each move, keep track what moves had the best score
for (final int move : legalMoves) {
final int score = getMoveScore(game, depth, move, true);
if (score > bestScore) {
bestMove = move;
bestScore = score;
}
}
return bestMove != -1 ? bestMove : legalMoves[(int)(Math.random() * legalMoves.length)];
}
/**
* Recursively evaluates the score of a potential move using a minimax-like approach.
*
* @param game the current Tic-Tac-Toe game state
* @param depth remaining depth to evaluate
* @param move the move to evaluate
* @param maximizing true if the AI is to maximize score, false if minimizing
* @return the score of the move
*/
private int getMoveScore(TicTacToeR game, int depth, int move, boolean maximizing) {
final TicTacToeR copy = game.deepCopy();
final PlayResult result = copy.play(move);
GameState state = result.state();
switch (state) {
case DRAW: return 0;
case WIN: return maximizing ? depth + 1 : -depth - 1;
}
if (depth <= 0) {
return 0;
}
final int[] legalMoves = copy.getLegalMoves();
int score = maximizing ? depth + 1 : -depth - 1;
for (final int next : legalMoves) {
if (maximizing) {
score = Math.min(score, getMoveScore(copy, depth - 1, next, false));
} else {
score = Math.max(score, getMoveScore(copy, depth - 1, next, true));
}
}
return score;
}
}

25
game/src/main/java/org/toop/game/games/tictactoe/TicTacToeAIRSleep.java
View File

@@ -1,25 +0,0 @@
package org.toop.game.games.tictactoe;
import java.util.Random;
public class TicTacToeAIRSleep extends TicTacToeAIR {
private int thinkTime;
public TicTacToeAIRSleep(int depth, int thinkTime) {
super(depth);
this.thinkTime = thinkTime;
}
@Override
public int getMove(TicTacToeR game) {
int score = super.getMove(game);
try {
Random random = new Random();
Thread.sleep(this.thinkTime * 1000L + random.nextInt(1000));
} catch (Exception e) {
e.printStackTrace();
}
return score;
}
}

118
game/src/main/java/org/toop/game/games/tictactoe/TicTacToeR.java
View File

@@ -1,118 +0,0 @@
package org.toop.game.games.tictactoe;
import org.toop.framework.gameFramework.model.game.PlayResult;
import org.toop.framework.gameFramework.model.game.AbstractGame;
import org.toop.framework.gameFramework.GameState;
import org.toop.framework.gameFramework.model.player.Player;
import java.util.ArrayList;
import java.util.Objects;
public final class TicTacToeR extends AbstractGame<TicTacToeR> {
private int movesLeft;
public TicTacToeR(Player<TicTacToeR>[] players) {
super(3, 3, 2, players);
movesLeft = this.getBoard().length;
}
public TicTacToeR(TicTacToeR other) {
super(other);
movesLeft = other.movesLeft;
}
@Override
public int[] getLegalMoves() {
final ArrayList<Integer> legalMoves = new ArrayList<Integer>();
for (int i = 0; i < this.getBoard().length; i++) {
if (Objects.equals(this.getBoard()[i], EMPTY)) {
legalMoves.add(i);
}
}
return legalMoves.stream().mapToInt(Integer::intValue).toArray();
}
@Override
public PlayResult play(int move) {
// NOT MY ASSERTIONS - Stef
assert move >= 0 && move < this.getBoard().length;
// Player loses if move is invalid
if (!contains(getLegalMoves(), move)) {
// Next player wins
return new PlayResult(GameState.WIN, (getCurrentTurn() + 1)%2); // TODO: Make this a generic method like getNextPlayer() or something similar.
}
// Move is valid, make move.
this.setBoard(move);
movesLeft--;
nextTurn();
// Check if current player won TODO: Make this generic?
// Not sure why I am checking for ANY win when only current player should be able to win.
int t = checkForWin();
if (t != EMPTY) {
return new PlayResult(GameState.WIN, t);
}
// Check for (early) draw
if (movesLeft <= 3) {
if (checkForEarlyDraw()) {
return new PlayResult(GameState.DRAW, EMPTY);
}
}
// Nothing weird happened, continue on as normal
return new PlayResult(GameState.NORMAL, EMPTY);
}
private int 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 this.getBoard()[index];
}
}
// 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 this.getBoard()[i];
}
}
// 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 this.getBoard()[0];
}
// F-Slash
if (!Objects.equals(this.getBoard()[2], EMPTY) && Objects.equals(this.getBoard()[2], this.getBoard()[4]) && Objects.equals(this.getBoard()[2], this.getBoard()[6]))
return this.getBoard()[2];
// Default return
return EMPTY;
}
private boolean checkForEarlyDraw() {
for (final int move : this.getLegalMoves()) {
final TicTacToeR copy = this.deepCopy();
if (copy.play(move).state() == GameState.WIN || !copy.checkForEarlyDraw()) {
return false;
}
}
return true;
}
public TicTacToeR deepCopy() {
return new TicTacToeR(this);
}
}

56
game/src/main/java/org/toop/game/players/ArtificialPlayer.java
View File

@@ -1,47 +1,55 @@
package org.toop.game.players;
import org.toop.framework.gameFramework.model.player.AbstractAI;
import org.toop.framework.gameFramework.model.player.AbstractPlayer;
import org.toop.framework.gameFramework.model.player.MoveProvider;
import org.toop.framework.gameFramework.model.player.*;
import org.toop.framework.gameFramework.model.game.TurnBasedGame;
/**
* Represents a player controlled by an AI in a game.
* <p>
* This player uses an {@link AbstractAI} instance to determine its moves. The generic
* parameter {@code T} specifies the type of {@link GameR} the AI can handle.
* </p>
* Represents a player controlled by an AI.
*
* @param <T> the specific type of game this AI player can play
* @param <T> the type of turn-based game
*/
public class ArtificialPlayer<T extends TurnBasedGame<T>> extends AbstractPlayer<T> {
/** The AI instance used to calculate moves. */
private final MoveProvider<T> ai;
private final AI<T> ai;
/**
* Constructs a new ArtificialPlayer using the specified AI.
* Creates a new AI-controlled player.
*
* @param ai the AI instance that determines moves for this player
* @param ai the AI controlling this player
* @param name the player's name
*/
public ArtificialPlayer(MoveProvider<T> ai, String name) {
public ArtificialPlayer(AI<T> ai, String name) {
super(name);
this.ai = ai;
}
/**
* Determines the next move for this player using its AI.
* <p>
* This method overrides {@link AbstractPlayer#getMove(GameR)}. Because the AI is
* typed to {@code T}, a runtime cast is required. It is the caller's
* responsibility to ensure that {@code gameCopy} is of type {@code T}.
* </p>
* Creates a copy of another AI-controlled player.
*
* @param gameCopy a copy of the current game state
* @return the integer representing the chosen move
* @throws ClassCastException if {@code gameCopy} is not of type {@code T}
* @param other the player to copy
*/
public int getMove(T gameCopy) {
public ArtificialPlayer(ArtificialPlayer<T> other) {
super(other);
this.ai = other.ai.deepCopy();
}
/**
* Determines the player's move using the AI.
*
* @param gameCopy a copy of the current game
* @return the move chosen by the AI
*/
protected long determineMove(T gameCopy) {
return ai.getMove(gameCopy);
}
/**
* Creates a deep copy of this AI player.
*
* @return a copy of this player
*/
@Override
public ArtificialPlayer<T> deepCopy() {
return new ArtificialPlayer<>(this);
}
}

110
game/src/main/java/org/toop/game/players/LocalPlayer.java
View File

@@ -6,70 +6,82 @@ import org.toop.framework.gameFramework.model.player.AbstractPlayer;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
/**
* Represents a local player who provides moves manually.
*
* @param <T> the type of turn-based game
*/
public class LocalPlayer<T extends TurnBasedGame<T>> extends AbstractPlayer<T> {
// Future can be used with event system, IF unsubscribeAfterSuccess works...
// private CompletableFuture<Integer> LastMove = new CompletableFuture<>();
private CompletableFuture<Integer> LastMove;
private CompletableFuture<Long> LastMove = new CompletableFuture<>();
/**
* Creates a new local player with the given name.
*
* @param name the player's name
*/
public LocalPlayer(String name) {
super(name);
}
@Override
public int getMove(T gameCopy) {
return getValidMove(gameCopy);
/**
* Creates a copy of another local player.
*
* @param other the player to copy
*/
public LocalPlayer(LocalPlayer<T> other) {
super(other);
this.LastMove = other.LastMove;
}
public void setMove(int move) {
/**
* Waits for and returns the player's next legal move.
*
* @param gameCopy a copy of the current game
* @return the chosen move
*/
@Override
protected long determineMove(T gameCopy) {
long legalMoves = gameCopy.getLegalMoves();
long move;
do {
move = getLastMove();
} while ((legalMoves & move) == 0);
return move;
}
/**
* Sets the player's last move.
*
* @param move the move to set
*/
public void setLastMove(long move) {
LastMove.complete(move);
}
// TODO: helper function, would like to replace to get rid of this method
public static boolean contains(int[] array, int value){
for (int i : array) if (i == value) return true;
return false;
}
private int getMove2(T gameCopy) {
LastMove = new CompletableFuture<>();
int move = -1;
/**
* Waits for the next move from the player.
*
* @return the chosen move or 0 if interrupted
*/
private long getLastMove() {
LastMove = new CompletableFuture<>(); // Reset the future
try {
move = LastMove.get();
} catch (InterruptedException | ExecutionException e) {
// TODO: Add proper logging.
e.printStackTrace();
return LastMove.get();
} catch (ExecutionException | InterruptedException e) {
return 0;
}
return move;
}
protected int getValidMove(T gameCopy){
// Get this player's valid moves
int[] validMoves = gameCopy.getLegalMoves();
// Make sure provided move is valid
// TODO: Limit amount of retries?
// TODO: Stop copying game so many times
int move = getMove2(gameCopy.deepCopy());
while (!contains(validMoves, move)) {
System.out.println("Not a valid move, try again");
move = getMove2(gameCopy.deepCopy());
}
return move;
/**
* Creates a deep copy of this local player.
*
* @return a copy of this player
*/
@Override
public LocalPlayer<T> deepCopy() {
return new LocalPlayer<>(this);
}
/*public void register() {
// Listening to PlayerAttemptedMove
new EventFlow().listen(GUIEvents.PlayerAttemptedMove.class, event -> {
if (!LastMove.isDone()) {
LastMove.complete(event.move()); // complete the future
}
}, true); // auto-unsubscribe
}
// This blocks until the next move arrives
public int take() throws ExecutionException, InterruptedException {
int move = LastMove.get(); // blocking
LastMove = new CompletableFuture<>(); // reset for next move
return move;
}*/
}

47
game/src/main/java/org/toop/game/players/OnlinePlayer.java
View File

@@ -2,25 +2,50 @@ package org.toop.game.players;
import org.toop.framework.gameFramework.model.game.TurnBasedGame;
import org.toop.framework.gameFramework.model.player.AbstractPlayer;
import org.toop.framework.gameFramework.model.player.Player;
/**
* Represents a player controlled remotely or over a network.
* <p>
* This class extends {@link AbstractPlayer} and can be used to implement game logic
* where moves are provided by an external source (e.g., another user or a server).
* Currently, this class is a placeholder and does not implement move logic.
* </p>
* Represents a player that participates online.
*
* @param <T> the type of turn-based game
*/
public class OnlinePlayer<T extends TurnBasedGame<T>> extends AbstractPlayer<T> {
/**
* Constructs a new OnlinePlayer.
* <p>
* Currently, no additional initialization is performed. Subclasses or
* future implementations should provide mechanisms to receive moves from
* an external source.
* Creates a new online player with the given name.
*
* @param name the name of the player
*/
public OnlinePlayer(String name) {
super(name);
}
/**
* Creates a copy of another online player.
*
* @param other the player to copy
*/
public OnlinePlayer(OnlinePlayer<T> other) {
super(other);
}
/**
* {@inheritDoc}
* <p>
* This method is not supported for online players.
*
* @throws UnsupportedOperationException always
*/
@Override
protected long determineMove(T gameCopy) {
throw new UnsupportedOperationException("An online player does not support determining move");
}
/**
* {@inheritDoc}
*/
@Override
public Player<T> deepCopy() {
return new OnlinePlayer<>(this);
}
}

165
game/src/main/java/org/toop/game/players/ai/MiniMaxAI.java Normal file
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@@ -0,0 +1,165 @@
package org.toop.game.players.ai;
import org.toop.framework.gameFramework.GameState;
import org.toop.framework.gameFramework.model.game.PlayResult;
import org.toop.framework.gameFramework.model.game.TurnBasedGame;
import org.toop.framework.gameFramework.model.player.AbstractAI;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
public class MiniMaxAI<T extends TurnBasedGame<T>> extends AbstractAI<T> {
private final int maxDepth;
private final Random random = new Random();
public MiniMaxAI(int depth) {
this.maxDepth = depth;
}
public MiniMaxAI(MiniMaxAI<T> other) {
this.maxDepth = other.maxDepth;
}
@Override
public MiniMaxAI<T> deepCopy() {
return new MiniMaxAI<>(this);
}
@Override
public long getMove(T game) {
long legalMoves = game.getLegalMoves();
if (legalMoves == 0) return 0;
List<Long> bestMoves = new ArrayList<>();
int bestScore = Integer.MIN_VALUE;
int aiPlayer = game.getCurrentTurn();
long movesLoop = legalMoves;
while (movesLoop != 0) {
long move = 1L << Long.numberOfTrailingZeros(movesLoop);
T copy = game.deepCopy();
PlayResult result = copy.play(move);
int score;
switch (result.state()) {
case WIN -> score = (result.player() == aiPlayer ? maxDepth : -maxDepth);
case DRAW -> score = 0;
default -> score = getMoveScore(copy, maxDepth - 1, false, aiPlayer, Integer.MIN_VALUE, Integer.MAX_VALUE);
}
if (score > bestScore) {
bestScore = score;
bestMoves.clear();
bestMoves.add(move);
} else if (score == bestScore) {
bestMoves.add(move);
}
movesLoop &= movesLoop - 1;
}
long chosenMove = bestMoves.get(random.nextInt(bestMoves.size()));
return chosenMove;
}
/**
* Recursive minimax with alpha-beta pruning and heuristic evaluation.
*
* @param game Current game state
* @param depth Remaining depth
* @param maximizing True if AI is maximizing, false if opponent
* @param aiPlayer AI's player index
* @param alpha Alpha value
* @param beta Beta value
* @return score of the position
*/
private int getMoveScore(T game, int depth, boolean maximizing, int aiPlayer, int alpha, int beta) {
long legalMoves = game.getLegalMoves();
// Terminal state
PlayResult lastResult = null;
if (legalMoves == 0) {
lastResult = new PlayResult(GameState.DRAW, -1);
}
// If the game is over or depth limit reached, evaluate
if (depth <= 0 || legalMoves == 0) {
if (lastResult != null) return 0;
return evaluateBoard(game, aiPlayer);
}
int bestScore = maximizing ? Integer.MIN_VALUE : Integer.MAX_VALUE;
long movesLoop = legalMoves;
while (movesLoop != 0) {
long move = 1L << Long.numberOfTrailingZeros(movesLoop);
T copy = game.deepCopy();
PlayResult result = copy.play(move);
int score;
switch (result.state()) {
case WIN -> score = (result.player() == aiPlayer ? depth : -depth);
case DRAW -> score = 0;
default -> score = getMoveScore(copy, depth - 1, !maximizing, aiPlayer, alpha, beta);
}
if (maximizing) {
bestScore = Math.max(bestScore, score);
alpha = Math.max(alpha, bestScore);
} else {
bestScore = Math.min(bestScore, score);
beta = Math.min(beta, bestScore);
}
// Alpha-beta pruning
if (beta <= alpha) break;
movesLoop &= movesLoop - 1;
}
return bestScore;
}
/**
* Simple heuristic evaluation for Reversi-like games.
* Positive = good for AI, Negative = good for opponent.
*
* @param game Game state
* @param aiPlayer AI's player index
* @return heuristic score
*/
private int evaluateBoard(T game, int aiPlayer) {
long[] board = game.getBoard();
int aiCount = 0;
int opponentCount = 0;
// Count pieces for AI vs opponent
for (int i = 0; i < board.length; i++) {
long bits = board[i];
for (int j = 0; j < 64; j++) {
if ((bits & (1L << j)) != 0) {
// Assume player 0 occupies even indices, player 1 occupies odd
if ((i * 64 + j) % game.getPlayerCount() == aiPlayer) aiCount++;
else opponentCount++;
}
}
}
// Mobility (number of legal moves)
int mobility = Long.bitCount(game.getLegalMoves());
// Corner control (top-left, top-right, bottom-left, bottom-right)
int corners = 0;
long[] cornerMasks = {1L << 0, 1L << 7, 1L << 56, 1L << 63};
for (long mask : cornerMasks) {
for (long b : board) {
if ((b & mask) != 0) corners += 1;
}
}
// Weighted sum
return (aiCount - opponentCount) + 2 * mobility + 5 * corners;
}
}

38
game/src/main/java/org/toop/game/players/ai/RandomAI.java Normal file
View File

@@ -0,0 +1,38 @@
package org.toop.game.players.ai;
import org.toop.framework.gameFramework.model.game.TurnBasedGame;
import org.toop.framework.gameFramework.model.player.AbstractAI;
import java.util.Random;
public class RandomAI<T extends TurnBasedGame<T>> extends AbstractAI<T> {
public RandomAI() {
super();
}
@Override
public RandomAI<T> deepCopy() {
return new RandomAI<T>();
}
@Override
public long getMove(T game) {
long legalMoves = game.getLegalMoves();
int move = new Random().nextInt(Long.bitCount(legalMoves));
return nthBitIndex(legalMoves, move);
}
public static long nthBitIndex(long bb, int n) {
while (bb != 0) {
int tz = Long.numberOfTrailingZeros(bb);
if (n == 0) {
return 1L << tz;
}
bb &= bb - 1; // clear the least significant 1
n--;
}
return 0L; // not enough 1s
}
}

121
game/src/test/java/org/toop/game/tictactoe/TicTacToeAIRTest.java
View File

@@ -1,121 +0,0 @@
package org.toop.game.tictactoe;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.toop.framework.gameFramework.model.player.Player;
import org.toop.game.games.tictactoe.TicTacToeAIR;
import org.toop.game.games.tictactoe.TicTacToeR;
import static org.junit.jupiter.api.Assertions.*;
final class TicTacToeAIRTest {
private final TicTacToeAIR ai = new TicTacToeAIR(9);
// Helper: play multiple moves in sequence on a fresh board
private TicTacToeR playSequence(int... moves) {
TicTacToeR game = new TicTacToeR(new Player[2]);
for (int move : moves) {
game.play(move);
}
return game;
}
@Test
@DisplayName("AI first move must choose a corner")
void testFirstMoveIsCorner() {
TicTacToeR game = new TicTacToeR(new Player[2]);
int move = ai.getMove(game);
assertTrue(
move == 0 || move == 2 || move == 6 || move == 8,
"AI should pick a corner as first move"
);
}
@Test
@DisplayName("AI doesn't make losing move in specific situation")
void testWinningMove(){
TicTacToeR game = playSequence(new int[] { 0, 4, 5, 3, 6, 1, 7});
int move = ai.getMove(game);
assertEquals(8, move);
}
@Test
@DisplayName("AI takes immediate winning move")
void testAiTakesWinningMove() {
// X = AI, O = opponent
// Board state (X to play):
// X | X | .
// O | O | .
// . | . | .
//
// AI must play 2 (top-right) to win.
TicTacToeR game = playSequence(
0, 3, // X, O
1, 4 // X, O
);
int move = ai.getMove(game);
assertEquals(2, move, "AI must take the winning move at index 2");
}
@Test
@DisplayName("AI blocks opponent's winning move")
void testAiBlocksOpponent() {
// Opponent threatens to win:
// X | . | .
// O | O | .
// . | . | X
// O is about to win at index 5; AI must block it.
TicTacToeR game = playSequence(
0, 3, // X, O
8, 4 // X, O (O threatens at 5)
);
int move = ai.getMove(game);
assertEquals(5, move, "AI must block opponent at index 5");
}
@Test
@DisplayName("AI returns -1 when no legal moves exist")
void testNoMovesAvailable() {
TicTacToeR full = new TicTacToeR(new Player[2]);
// Fill board alternating
for (int i = 0; i < 9; i++) full.play(i);
int move = ai.getMove(full);
assertEquals(-1, move, "AI should return -1 when board is full");
}
@Test
@DisplayName("Minimax depth does not cause crashes and produces valid move")
void testDepthStability() {
TicTacToeR game = playSequence(0, 4); // Simple mid-game state
int move = ai.getMove(game);
assertTrue(move >= -1 && move <= 8, "AI must return a valid move index");
}
@Test
@DisplayName("AI chooses the optimal forced draw move")
void testForcedDrawScenario() {
// Scenario where only one move avoids immediate loss:
//
// X | O | X
// X | O | .
// O | X | .
//
// Legal moves: 5, 8
// Only move 5 avoids losing.
TicTacToeR game = new TicTacToeR(new Player[2]);
int[] moves = {0,1,2,4,3,6,7}; // Hard-coded board setup
for (int m : moves) game.play(m);
int move = ai.getMove(game);
assertEquals(5, move, "AI must choose the only move that avoids losing");
}
}