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Init server code

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Bas de Jong
2025-12-12 15:15:55 +01:00
parent 0132981d94
commit 66cb000fad
49 changed files with 475 additions and 92 deletions
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3
game/src/main/java/org/toop/game/Move.java
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package org.toop.game;
// TODO: Remove this, only used in ReversiCanvas. Needs to not
public record Move(int position, char value) {}

88
game/src/main/java/org/toop/game/gameThreads/LocalFixedRateThreadBehaviour.java
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package org.toop.game.gameThreads;
import org.toop.framework.eventbus.EventFlow;
import org.toop.framework.gameFramework.GameState;
import org.toop.framework.gameFramework.model.game.PlayResult;
import org.toop.framework.gameFramework.model.game.threadBehaviour.AbstractThreadBehaviour;
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>
* Runs a separate thread that executes game turns at a fixed frequency (default 60 updates/sec),
* applying player moves, updating the game state, and dispatching UI events.
*/
public class LocalFixedRateThreadBehaviour<T extends TurnBasedGame<T>> extends AbstractThreadBehaviour<T> implements Runnable {
/**
* Creates a fixed-rate behaviour for a local turn-based game.
*
* @param game the game instance
*/
public LocalFixedRateThreadBehaviour(T game) {
super(game);
}
/** Starts the game loop thread if not already running. */
@Override
public void start() {
if (isRunning.compareAndSet(false, true)) {
new Thread(this).start();
}
}
/** Stops the game loop after the current iteration. */
@Override
public void stop() {
isRunning.set(false);
}
/**
* Main loop running at a fixed rate.
* <p>
* Fetches the current player's move, applies it to the game,
* updates the UI, and handles game-ending states.
*/
@Override
public void run() {
final int UPS = 1;
final long UPDATE_INTERVAL = 1_000_000_000L / UPS;
long nextUpdate = System.nanoTime();
while (isRunning.get()) {
long now = System.nanoTime();
if (now >= nextUpdate) {
nextUpdate += UPDATE_INTERVAL;
Player<T> currentPlayer = game.getPlayer(game.getCurrentTurn());
long move = currentPlayer.getMove(game.deepCopy());
PlayResult result = game.play(move);
updateUI();
GameState state = result.state();
switch (state) {
case WIN, DRAW -> {
isRunning.set(false);
new EventFlow().addPostEvent(GUIEvents.GameEnded.class, state == GameState.WIN, result.player()).postEvent();
}
case NORMAL, TURN_SKIPPED -> { /* continue */ }
default -> {
logger.error("Unexpected state {}", state);
isRunning.set(false);
throw new RuntimeException("Unknown state: " + state);
}
}
} else {
try {
Thread.sleep(10);
} catch (InterruptedException ignored) {}
}
}
}
}

76
game/src/main/java/org/toop/game/gameThreads/LocalThreadBehaviour.java
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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.PlayResult;
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>
* Repeatedly gets the current player's move, applies it to the game,
* updates the UI, and stops when the game ends or {@link #stop()} is called.
*/
public class LocalThreadBehaviour<T extends TurnBasedGame<T>> extends AbstractThreadBehaviour<T> implements Runnable {
/**
* Creates a new behaviour for a local turn-based game.
*
* @param game the game instance
*/
public LocalThreadBehaviour(T game) {
super(game);
}
/** Starts the game loop in a new thread. */
@Override
public void start() {
if (isRunning.compareAndSet(false, true)) {
new Thread(this).start();
}
}
/** Stops the game loop after the current iteration. */
@Override
public void stop() {
isRunning.set(false);
}
/**
* Main game loop: gets the current player's move, applies it,
* updates the UI, and handles end-of-game states.
*/
@Override
public void run() {
while (isRunning.get()) {
Player<T> currentPlayer = game.getPlayer(game.getCurrentTurn());
long move = currentPlayer.getMove(game.deepCopy());
PlayResult result = game.play(move);
updateUI();
GameState state = result.state();
switch (state) {
case WIN, DRAW -> {
isRunning.set(false);
new EventFlow().addPostEvent(
GUIEvents.GameEnded.class,
state == GameState.WIN,
result.player()
).postEvent();
}
case NORMAL, TURN_SKIPPED -> { /* continue normally */ }
default -> {
logger.error("Unexpected state {}", state);
isRunning.set(false);
throw new RuntimeException("Unknown state: " + state);
}
}
}
}
}

84
game/src/main/java/org/toop/game/gameThreads/OnlineThreadBehaviour.java
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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.TurnBasedGame;
import org.toop.framework.gameFramework.model.game.SupportsOnlinePlay;
import org.toop.framework.gameFramework.model.player.Player;
import org.toop.game.players.OnlinePlayer;
/**
* Handles online multiplayer game logic.
* <p>
* Reacts to server events, sending moves and updating the game state
* for the local player while receiving moves from other players.
*/
public class OnlineThreadBehaviour<T extends TurnBasedGame<T>> extends AbstractThreadBehaviour<T> implements SupportsOnlinePlay {
/**
* Creates behaviour and sets the first local player
* (non-online player) from the given array.
*/
public OnlineThreadBehaviour(T game) {
super(game);
}
/** Finds the first non-online player in the array. */
private int getFirstNotOnlinePlayer(Player<T>[] players) {
for (int i = 0; i < players.length; i++) {
if (!(players[i] instanceof OnlinePlayer)) {
return i;
}
}
throw new RuntimeException("All players are online players");
}
/** Starts processing network events for the local player. */
@Override
public void start() {
isRunning.set(true);
}
/** Stops processing network events. */
@Override
public void stop() {
isRunning.set(false);
}
/**
* Called when the server notifies that it is the local player's turn.
* Sends the generated move back to the server.
*/
@Override
public void onYourTurn(long clientId) {
if (!isRunning.get()) return;
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.
*/
public void onMoveReceived(long move) {
if (!isRunning.get()) return;
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.
*/
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");
}
}
}
}

40
game/src/main/java/org/toop/game/gameThreads/OnlineWithSleepThreadBehaviour.java
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package org.toop.game.gameThreads;
import org.toop.framework.gameFramework.model.game.TurnBasedGame;
import org.toop.framework.networking.events.NetworkEvents;
/**
* Online thread behaviour that adds a fixed delay before processing
* the local player's turn.
* <p>
* This is identical to {@link OnlineThreadBehaviour}, but inserts a
* short sleep before delegating to the base implementation.
*/
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
*/
public OnlineWithSleepThreadBehaviour(T game) {
super(game);
}
/**
* Waits briefly before handling the "your turn" event.
*
* @param event the network event indicating it's this client's turn
*/
@Override
public void onYourTurn(long clientId) {
try {
Thread.sleep(50);
} catch (InterruptedException e) {
e.printStackTrace();
}
super.onYourTurn(clientId);
}
}

86
game/src/main/java/org/toop/game/players/LocalPlayer.java
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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;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
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<Long> LastMove;
public LocalPlayer(String name) {
super(name);
}
public LocalPlayer(LocalPlayer<T> other) {
super(other);
}
@Override
public long getMove(T gameCopy) {
return getValidMove(gameCopy);
}
public void setMove(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 long getMove2(T gameCopy) {
LastMove = new CompletableFuture<>();
long move = 0;
try {
move = LastMove.get();
System.out.println(Long.toBinaryString(move));
} catch (InterruptedException | ExecutionException e) {
// TODO: Add proper logging.
e.printStackTrace();
}
return move;
}
protected long getValidMove(T gameCopy){
// Get this player's valid moves
long validMoves = gameCopy.getLegalMoves();
// Make sure provided move is valid
// TODO: Limit amount of retries?
// TODO: Stop copying game so many times
long move = getMove2(gameCopy.deepCopy());
while ((validMoves & move) == 0) {
System.out.println("Not a valid move, try again");
move = getMove2(gameCopy.deepCopy());
}
return move;
}
@Override
public LocalPlayer<T> deepCopy() {
return new LocalPlayer<T>(this.getName());
}
/*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;
}*/
}

165
game/src/main/java/org/toop/game/players/MiniMaxAI.java
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package org.toop.game.players;
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;
}
}

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game/src/main/java/org/toop/game/players/OnlinePlayer.java
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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>
*/
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.
*/
public OnlinePlayer(String name) {
super(name);
}
public OnlinePlayer(OnlinePlayer<T> other) {
super(other);
}
@Override
public Player<T> deepCopy() {
return new OnlinePlayer<>(this);
}
}

38
game/src/main/java/org/toop/game/players/RandomAI.java
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package org.toop.game.players;
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
}
}