create package org.polytech.ryuk

Reviewed-on: #36

app/build.gradle

@@ -16,25 +16,14 @@ project.ext.os = System.properties['os.name'].toLowerCase().split(" ")[0]
 repositories {
     // Use Maven Central for resolving dependencies.
     mavenCentral()
-    flatDir {
-       dirs("$rootProject.projectDir/libs")
-   }
 }
 
 dependencies {
     // Use JUnit Jupiter for testing.
     testImplementation 'org.junit.jupiter:junit-jupiter:5.9.1'
 
-    // This dependency is used by the application.
-    implementation 'com.google.guava:guava:31.1-jre'
-
-    // uml
-    implementation 'com.github.javaparser:javaparser-symbol-solver-core:3.26.2'
-
     implementation 'org.json:json:20250107'
 
-    implementation 'com.fasterxml.jackson.core:jackson-databind:2.18.2'
-
     implementation "io.github.spair:imgui-java-app:1.88.0"
 
     implementation "org.lwjgl:lwjgl-stb:3.3.4"
@@ -44,12 +33,19 @@ dependencies {
 
 application {
     // Define the main class for the application.
-    mainClass = 'gui.Main'
+    mainClass = 'org.polytech.ryuk.gui.Main'
 }
 
-tasks.named('test') {
-    // Use JUnit Platform for unit tests.
-    useJUnitPlatform()
+// Add libraries into the final jar
+jar {
+    archiveBaseName = rootProject.getName()
+    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+    manifest {
+        attributes "Main-Class": application.mainClass
+    }
+    from {
+        configurations.compileClasspath.collect { it.isDirectory() ? it : zipTree(it) }
+    } 
 }
 
 run {

app/src/main/java/game/Game.java

@@ -1,52 +0,0 @@
-package game;
-
-import java.util.HashMap;
-import java.util.Map;
-
-import sudoku.structure.MultiDoku;
-
-public class Game {
-
-	public static enum GameState {
-		GameNotStarted, GameGoing, GameEnd
-	}
-
-	private final Map<Integer, Player> players;
-	private GameState gameState;
-	private MultiDoku doku;
-
-	public Game() {
-		this.players = new HashMap<>();
-		this.gameState = GameState.GameNotStarted;
-	}
-
-	public Player getPlayerById(int id) {
-		return players.get(id);
-	}
-
-	public void addPlayer(Player player) {
-		players.put(player.getId(), player);
-	}
-
-	public void removePlayer(int id) {
-		players.remove(id);
-	}
-
-	public Map<Integer, Player> getPlayers() {
-		return players;
-	}
-
-	public void startGame(MultiDoku doku) {
-		this.doku = doku;
-		this.gameState = GameState.GameGoing;
-	}
-
-	public GameState getGameState() {
-		return gameState;
-	}
-
-	public MultiDoku getDoku() {
-		return doku;
-	}
-
-}

app/src/main/java/gui/menu/MultiPlayerDokuView.java

@@ -1,47 +0,0 @@
-package gui.menu;
-
-import gui.widget.LeaderboardRenderer;
-import gui.widget.SudokuRenderer;
-import imgui.ImGui;
-import network.client.Client;
-import network.server.Server;
-import sudoku.structure.Cell;
-
-public class MultiPlayerDokuView extends BaseView{
-
-	private final Client client;
-	private final Server server;
-	private final SudokuRenderer sudokuRenderer;
-	private final LeaderboardRenderer leaderboardRenderer;
-
-	public MultiPlayerDokuView(StateMachine stateMachine, Client client, Server server) {
-		super(stateMachine);
-		this.client = client;
-		this.server = server;
-		this.sudokuRenderer = new SudokuRenderer(this.client.getGame().getDoku());
-		this.leaderboardRenderer = new LeaderboardRenderer(client.getGame(), client.getPlayer());
-		this.sudokuRenderer.onCellChange.connect(this::onCellChange);
-		this.client.onDisconnect.connect(this::onDisconnect);
-	}
-
-	private void onCellChange(Cell cell) {
-		this.client.sendCellChange(cell);
-	}
-
-	public void onDisconnect() {
-		if (server == null) {
-			closeMenu();
-		}
-	}
-
-	@Override
-	public void render() {
-		this.leaderboardRenderer.render();
-		this.sudokuRenderer.render();
-		if (ImGui.button("Quitter")) {
-			this.client.stop();
-			this.closeMenu(3);
-		}
-	}
-
-}

app/src/main/java/gui/widget/LeaderboardRenderer.java

@@ -1,25 +0,0 @@
-package gui.widget;
-
-import game.Game;
-import game.Player;
-import imgui.ImGui;
-
-public class LeaderboardRenderer {
-
-	private final Game game;
-	private final Player currentPlayer;
-
-	public LeaderboardRenderer(Game game, Player player) {
-		this.game = game;
-		this.currentPlayer = player;
-	}
-
-	public void render() {
-		ImGui.text("Leaderboard");
-		for (var entry : game.getPlayers().entrySet()) {
-			Player player = entry.getValue();
-			ImGui.text(player.getPseudo() + " : " + player.getScore());
-		}
-	}
-
-}

app/src/main/java/network/protocol/PacketVisitor.java

@@ -1,31 +0,0 @@
-package network.protocol;
-
-import network.protocol.packets.ChangeCellPacket;
-import network.protocol.packets.ConnexionInfoPacket;
-import network.protocol.packets.DisconnectPacket;
-import network.protocol.packets.EndGamePacket;
-import network.protocol.packets.KeepAlivePacket;
-import network.protocol.packets.LoginPacket;
-import network.protocol.packets.PlayerJoinPacket;
-import network.protocol.packets.PlayerLeavePacket;
-import network.protocol.packets.StartGamePacket;
-import network.protocol.packets.UpdatePlayerScorePacket;
-
-public interface PacketVisitor {
-
-	default void visit(Packet packet) {
-		packet.accept(this);
-	}
-	
-	void visitPacket(ConnexionInfoPacket packet);
-	void visitPacket(DisconnectPacket packet);
-	void visitPacket(KeepAlivePacket packet);
-	void visitPacket(LoginPacket packet);
-	void visitPacket(PlayerJoinPacket packet);
-	void visitPacket(PlayerLeavePacket packet);
-	void visitPacket(StartGamePacket packet);
-	void visitPacket(EndGamePacket packet);
-	void visitPacket(UpdatePlayerScorePacket packet);
-	void visitPacket(ChangeCellPacket packet);
-	
-}

app/src/main/java/network/protocol/packets/EndGamePacket.java

@@ -1,26 +0,0 @@
-package network.protocol.packets;
-
-import network.protocol.Packet;
-import network.protocol.PacketVisitor;
-import network.protocol.Packets;
-
-public class EndGamePacket extends Packet {
-
-	static private final long serialVersionUID = Packets.EndGame.ordinal();
-
-	private final int winnerId;
-
-	public EndGamePacket(int winnerId) {
-		this.winnerId = winnerId;
-	}
-
-	public int getWinnerId() {
-		return winnerId;
-	}
-
-	@Override
-	public void accept(PacketVisitor packetVisitor) {
-		packetVisitor.visitPacket(this);
-	}
-
-}

app/src/main/java/network/protocol/packets/StartGamePacket.java

@@ -1,26 +0,0 @@
-package network.protocol.packets;
-
-import network.protocol.Packet;
-import network.protocol.PacketVisitor;
-import network.protocol.Packets;
-
-public class StartGamePacket extends Packet {
-
-	static private final long serialVersionUID = Packets.StartGame.ordinal();
-
-	private final String serializedSudoku;
-
-	public StartGamePacket(String serializedSudoku) {
-		this.serializedSudoku = serializedSudoku;
-	}
-
-	public String getSerializedSudoku() {
-		return serializedSudoku;
-	}
-
-	@Override
-	public void accept(PacketVisitor packetVisitor) {
-		packetVisitor.visitPacket(this);
-	}
-
-}

app/src/main/java/org/polytech/ryuk/common/ConsumerSignal.java

@@ -1,4 +1,4 @@
-package common;
+package org.polytech.ryuk.common;
 
 import java.util.HashSet;
 import java.util.Set;

app/src/main/java/org/polytech/ryuk/common/Signal.java

@@ -1,4 +1,4 @@
-package common;
+package org.polytech.ryuk.common;
 
 import java.util.HashSet;
 import java.util.Set;

app/src/main/java/org/polytech/ryuk/game/Game.java

@@ -0,0 +1,86 @@
+package org.polytech.ryuk.game;
+
+import java.time.Instant;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
+
+public class Game {
+
+	public static enum GameState {
+		GameNotStarted, GameGoing
+	}
+
+	private final Map<Integer, Player> players;
+	private final List<Player> leaderboard;
+	private GameState gameState;
+	private MultiDoku doku;
+	private Instant startTime = null;
+	private long gameDuration;
+
+	public Game() {
+		this.players = new HashMap<>();
+		this.leaderboard = new ArrayList<>();
+		this.gameState = GameState.GameNotStarted;
+	}
+
+	public Player getPlayerById(int id) {
+		return players.get(id);
+	}
+
+	public void addPlayer(Player player) {
+		players.put(player.getId(), player);
+		leaderboard.add(player);
+	}
+
+	public void setPlayerRemainingCells(Player player, int newScore) {
+		player.setRemainingCells(newScore);
+		Collections.sort(this.leaderboard,
+				(player1, player2) -> Integer.compare(player1.getRemainingCells(), player2.getRemainingCells()));
+	}
+
+	public void removePlayer(int id) {
+		this.leaderboard.remove(getPlayerById(id));
+		this.players.remove(id);
+	}
+
+	public Map<Integer, Player> getPlayers() {
+		return players;
+	}
+
+	public void startGame(MultiDoku doku, Instant startTime, long gameDuration) {
+		this.doku = doku;
+		this.gameState = GameState.GameGoing;
+		this.startTime = startTime;
+		this.gameDuration = gameDuration;
+	}
+
+	public void stopGame() {
+		this.gameState = GameState.GameNotStarted;
+	}
+
+	public GameState getGameState() {
+		return gameState;
+	}
+
+	public MultiDoku getDoku() {
+		return doku;
+	}
+
+	public List<Player> getLeaderboard() {
+		return leaderboard;
+	}
+
+	public Instant getStartTime() {
+		return startTime;
+	}
+
+	public long getGameDuration() {
+		return gameDuration;
+	}
+
+}

app/src/main/java/org/polytech/ryuk/game/Player.java

@@ -1,4 +1,4 @@
-package game;
+package org.polytech.ryuk.game;
 
 import java.io.Serializable;
 
@@ -16,11 +16,11 @@ public class Player implements Serializable {
 		this.score = 0;
 	}
 
-	public int getScore() {
+	public int getRemainingCells() {
 		return score;
 	}
 
-	public void setScore(int score) {
+	void setRemainingCells(int score) {
 		this.score = score;
 	}
 

app/src/main/java/org/polytech/ryuk/gui/AnimatedBackground.java

@@ -0,0 +1,30 @@
+package org.polytech.ryuk.gui;
+
+import imgui.ImGui;
+import imgui.ImVec2;
+import imgui.flag.ImGuiWindowFlags;
+
+public class AnimatedBackground {
+
+	private float backgroundOffset = 0;
+
+	private static final float defaultSpeed = 0.05f;
+
+	public AnimatedBackground() {
+
+	}
+
+	public void render() {
+		backgroundOffset += ImGui.getIO().getDeltaTime() * defaultSpeed * Options.BackgroundSpeed;
+		var displaySize = ImGui.getIO().getDisplaySize();
+		ImGui.setNextWindowPos(new ImVec2(0.0f, 0.0f));
+		ImGui.setNextWindowSize(displaySize);
+		ImGui.begin("Background", null, ImGuiWindowFlags.NoDecoration | ImGuiWindowFlags.NoMove
+				| ImGuiWindowFlags.NoSavedSettings | ImGuiWindowFlags.NoBackground
+				| ImGuiWindowFlags.NoBringToFrontOnFocus | ImGuiWindowFlags.NoInputs);
+		ImGui.image(Images.BACKGROUND, displaySize, new ImVec2(backgroundOffset, backgroundOffset),
+				new ImVec2(1.0f + backgroundOffset, 1.0f + backgroundOffset));
+		ImGui.end();
+	}
+
+}

app/src/main/java/org/polytech/ryuk/gui/ColorGenerator.java

@@ -1,4 +1,4 @@
-package gui;
+package org.polytech.ryuk.gui;
 
 import java.util.ArrayList;
 import java.util.List;

app/src/main/java/org/polytech/ryuk/gui/Fonts.java

@@ -1,4 +1,4 @@
-package gui;
+package org.polytech.ryuk.gui;
 
 import imgui.ImFont;
 import imgui.ImFontConfig;

app/src/main/java/org/polytech/ryuk/gui/Images.java

@@ -1,4 +1,4 @@
-package gui;
+package org.polytech.ryuk.gui;
 
 import java.nio.ByteBuffer;
 

app/src/main/java/org/polytech/ryuk/gui/Main.java

@@ -1,8 +1,8 @@
-package gui;
+package org.polytech.ryuk.gui;
+
+import org.polytech.ryuk.gui.menu.MainMenu;
+import org.polytech.ryuk.gui.menu.StateMachine;
 
-import gui.menu.MainMenu;
-import gui.menu.StateMachine;
-import imgui.ImGui;
 import imgui.app.Application;
 import imgui.app.Configuration;
 

app/src/main/java/org/polytech/ryuk/gui/Options.java

@@ -1,7 +1,8 @@
-package gui;
+package org.polytech.ryuk.gui;
 
 public class Options {
 
 	public static Symbols Symboles = Symbols.Numbers;
+	public static float BackgroundSpeed = 1.0f;
 
 }

app/src/main/java/org/polytech/ryuk/gui/RenderableMultidoku.java

@@ -1,15 +1,15 @@
-package gui;
+package org.polytech.ryuk.gui;
 
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
-import sudoku.structure.Block;
-import sudoku.structure.Cell;
-import sudoku.structure.Coordinate;
-import sudoku.structure.MultiDoku;
-import sudoku.structure.Sudoku;
+import org.polytech.ryuk.sudoku.structure.Block;
+import org.polytech.ryuk.sudoku.structure.Cell;
+import org.polytech.ryuk.sudoku.structure.Coordinate;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
+import org.polytech.ryuk.sudoku.structure.Sudoku;
 
 public class RenderableMultidoku {
 

app/src/main/java/org/polytech/ryuk/gui/SudokuType.java

@@ -1,10 +1,10 @@
-package gui;
+package org.polytech.ryuk.gui;
 
 import java.util.List;
 
-import sudoku.constraint.Constraint;
-import sudoku.structure.MultiDoku;
-import sudoku.structure.SudokuFactory;;
+import org.polytech.ryuk.sudoku.constraint.Constraint;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
+import org.polytech.ryuk.sudoku.structure.SudokuFactory;;
 
 public enum SudokuType {
 

app/src/main/java/org/polytech/ryuk/gui/Symbols.java

@@ -1,4 +1,4 @@
-package gui;
+package org.polytech.ryuk.gui;
 
 import java.util.ArrayList;
 import java.util.List;

app/src/main/java/org/polytech/ryuk/gui/menu/BaseView.java

@@ -1,4 +1,4 @@
-package gui.menu;
+package org.polytech.ryuk.gui.menu;
 
 import imgui.ImGui;
 

app/src/main/java/org/polytech/ryuk/gui/menu/ConnexionStatusView.java

@@ -1,11 +1,12 @@
-package gui.menu;
+package org.polytech.ryuk.gui.menu;
 
 import java.io.IOException;
 import java.net.UnknownHostException;
 
+import org.polytech.ryuk.network.client.Client;
+import org.polytech.ryuk.network.server.Server;
+
 import imgui.ImGui;
-import network.client.Client;
-import network.server.Server;
 
 public class ConnexionStatusView extends BaseView {
 

app/src/main/java/org/polytech/ryuk/gui/menu/EndGameView.java

@@ -0,0 +1,50 @@
+package org.polytech.ryuk.gui.menu;
+
+import org.polytech.ryuk.game.Player;
+import org.polytech.ryuk.gui.ColorGenerator;
+import org.polytech.ryuk.gui.widget.SudokuRenderer;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
+
+import imgui.ImGui;
+import imgui.ImVec4;
+
+public class EndGameView extends BaseView {
+
+	private final Player winner;
+	private float time = 0;
+
+	private static final ImVec4 YELLOW = new ImVec4(1, 1, 0, 1);
+
+	private final SudokuRenderer sudokuRenderer;
+
+	public EndGameView(StateMachine stateMachine, MultiDoku resolved, Player winner) {
+		super(stateMachine);
+		this.winner = winner;
+		this.sudokuRenderer = new SudokuRenderer(resolved);
+	}
+
+	private ImVec4 getPseudoColor() {
+		time += ImGui.getIO().getDeltaTime();
+		float factor = (float) Math.cos(time);
+		var color = ColorGenerator.hslToRgb(factor * factor, 0.9f, 0.4f);
+		return new ImVec4(color.r, color.g, color.b, 1.0f);
+	}
+
+	private void renderWinText() {
+		String winText = " a gagné !";
+		String text = winner.getPseudo() + winText;
+		float textWidth = ImGui.calcTextSizeX(text);
+		ImGui.setCursorPosX(ImGui.getIO().getDisplaySizeX() / 2.0f - textWidth / 2.0f);
+		ImGui.textColored(getPseudoColor(), winner.getPseudo());
+		ImGui.sameLine();
+		ImGui.textColored(YELLOW, winText);
+	}
+
+	@Override
+	public void render() {
+		renderWinText();
+		this.sudokuRenderer.render();
+		renderReturnButton();
+	}
+
+}

app/src/main/java/org/polytech/ryuk/gui/menu/MainMenu.java

@@ -1,4 +1,4 @@
-package gui.menu;
+package org.polytech.ryuk.gui.menu;
 
 import imgui.ImGui;
 import imgui.ImVec2;

app/src/main/java/org/polytech/ryuk/gui/menu/MultiMenu.java

@@ -1,4 +1,4 @@
-package gui.menu;
+package org.polytech.ryuk.gui.menu;
 
 import java.io.IOException;
 

app/src/main/java/org/polytech/ryuk/gui/menu/MultiPlayerDokuView.java

@@ -0,0 +1,69 @@
+package org.polytech.ryuk.gui.menu;
+
+import org.polytech.ryuk.game.Player;
+import org.polytech.ryuk.gui.widget.LeaderboardRenderer;
+import org.polytech.ryuk.gui.widget.MultiPlayerCompleteProgress;
+import org.polytech.ryuk.gui.widget.SudokuRenderer;
+import org.polytech.ryuk.gui.widget.TimerRenderer;
+import org.polytech.ryuk.network.client.Client;
+import org.polytech.ryuk.network.server.Server;
+import org.polytech.ryuk.sudoku.solver.BacktrackingSolver;
+import org.polytech.ryuk.sudoku.solver.Solver;
+import org.polytech.ryuk.sudoku.structure.Cell;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
+
+import imgui.ImGui;
+
+public class MultiPlayerDokuView extends BaseView {
+
+	private final Client client;
+	private final Server server;
+	private final SudokuRenderer sudokuRenderer;
+	private final LeaderboardRenderer leaderboardRenderer;
+	private final TimerRenderer timerRenderer;
+	private final MultiPlayerCompleteProgress completeProgress;
+
+	public MultiPlayerDokuView(StateMachine stateMachine, Client client, Server server) {
+		super(stateMachine);
+		this.client = client;
+		this.server = server;
+		this.sudokuRenderer = new SudokuRenderer(this.client.getGame().getDoku());
+		this.leaderboardRenderer = new LeaderboardRenderer(client.getGame(), client.getPlayer());
+		this.sudokuRenderer.onCellChange.connect(this::onCellChange);
+		this.client.onDisconnect.connect(this::onDisconnect);
+		this.client.onGameEnd.connect(this::onGameEnd);
+		this.timerRenderer = new TimerRenderer(this.client.getGame().getStartTime(), this.client.getGame().getGameDuration());
+		this.completeProgress = new MultiPlayerCompleteProgress(this.client.getGame());
+	}
+
+	private void onGameEnd(Player winner) {
+		MultiDoku doku = this.client.getGame().getDoku();
+		doku.clearMutableCells();
+		Solver solver = new BacktrackingSolver();
+		solver.solve(doku);
+		this.stateMachine.overrideState(new EndGameView(stateMachine, doku, winner));
+	}
+
+	private void onCellChange(Cell cell) {
+		this.client.sendCellChange(cell);
+	}
+
+	public void onDisconnect() {
+		if (server == null) {
+			closeMenu();
+		}
+	}
+
+	@Override
+	public void render() {
+		this.timerRenderer.render();
+		this.leaderboardRenderer.render();
+		this.completeProgress.render();
+		this.sudokuRenderer.render();
+		if (ImGui.button("Quitter")) {
+			this.client.stop();
+			this.closeMenu(3);
+		}
+	}
+
+}

app/src/main/java/org/polytech/ryuk/gui/menu/MultiPlayerView.java

@@ -1,11 +1,13 @@
-package gui.menu;
+package org.polytech.ryuk.gui.menu;
+
+import org.polytech.ryuk.game.Player;
+import org.polytech.ryuk.gui.widget.SudokuSelector;
+import org.polytech.ryuk.network.client.Client;
+import org.polytech.ryuk.network.server.Server;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
 
-import game.Player;
-import gui.widget.SudokuSelector;
 import imgui.ImGui;
-import network.client.Client;
-import network.server.Server;
-import sudoku.structure.MultiDoku;
+import imgui.type.ImInt;
 
 public class MultiPlayerView extends BaseView {
 
@@ -14,6 +16,8 @@ public class MultiPlayerView extends BaseView {
 
 	private final SudokuSelector selector;
 
+	private ImInt gameDurationMinutes = new ImInt(10);
+
 	private MultiDoku doku = null;
 
 	public MultiPlayerView(StateMachine stateMachine, Client client, Server server) {
@@ -45,25 +49,32 @@ public class MultiPlayerView extends BaseView {
 		if (this.server == null) {
 			ImGui.text("En attente de l'administrateur du serveur ...");
 		} else {
-			if (this.doku == null)
-				ImGui.beginDisabled();
+			renderTimer();
+			ImGui.beginDisabled(this.doku == null);
 			if (ImGui.button("Démarrer")) {
-				this.server.startGame(this.doku);
+				this.server.startGame(this.doku, this.gameDurationMinutes.get() * 60);
 			}
-			if (this.doku == null)
 			ImGui.endDisabled();
 			selector.render();
 		}
 	}
 
-	@Override
-	public void render() {
+	private void renderPlayers() {
 		ImGui.text("Joueurs :");
 		{
 			for (Player player : this.client.getGame().getPlayers().values()) {
 				ImGui.bulletText(player.getPseudo());
 			}
 		}
+	}
+
+	private void renderTimer() {
+		ImGui.inputInt("Temps de la partie (minutes)", gameDurationMinutes);
+	}
+
+	@Override
+	public void render() {
+		renderPlayers();
 		renderGameStatus();
 	}
 

app/src/main/java/org/polytech/ryuk/gui/menu/OptionsMenu.java

@@ -1,13 +1,15 @@
-package gui.menu;
+package org.polytech.ryuk.gui.menu;
+
+import org.polytech.ryuk.gui.Options;
+import org.polytech.ryuk.gui.Symbols;
 
-import gui.Options;
-import gui.Symbols;
 import imgui.ImGui;
 import imgui.type.ImInt;
 
 public class OptionsMenu extends BaseView {
 
 	private ImInt currentValue = new ImInt();
+	private float backgroundSpeed[] = new float[]{Options.BackgroundSpeed};
 
 	public OptionsMenu(StateMachine stateMachine) {
 		super(stateMachine);
@@ -19,6 +21,9 @@ public class OptionsMenu extends BaseView {
 		if(ImGui.combo("Jeu de symboles", currentValue, Symbols.getSymbolsNames())){
 			Options.Symboles = Symbols.values()[currentValue.get()];
 		}
+		if(ImGui.sliderFloat("Vitesse d'animation de l'arrière plan", backgroundSpeed, 0.0f, 10.0f)){
+			Options.BackgroundSpeed = backgroundSpeed[0];
+		}
 		renderReturnButton();
 	}
 

app/src/main/java/org/polytech/ryuk/gui/menu/SoloMenu.java

@@ -1,8 +1,9 @@
-package gui.menu;
+package org.polytech.ryuk.gui.menu;
+
+import org.polytech.ryuk.gui.widget.SudokuSelector;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
 
-import gui.widget.SudokuSelector;
 import imgui.ImGui;
-import sudoku.structure.MultiDoku;
 
 public class SoloMenu extends BaseView {
 

app/src/main/java/org/polytech/ryuk/gui/menu/StateMachine.java

@@ -1,8 +1,9 @@
-package gui.menu;
+package org.polytech.ryuk.gui.menu;
 
 import java.util.Stack;
 
-import gui.Images;
+import org.polytech.ryuk.gui.AnimatedBackground;
+
 import imgui.ImGui;
 import imgui.ImVec2;
 import imgui.flag.ImGuiKey;
@@ -11,9 +12,11 @@ import imgui.flag.ImGuiWindowFlags;
 public class StateMachine {
 
 	private final Stack<BaseView> menus;
+	private final AnimatedBackground background;
 
 	public StateMachine() {
 		this.menus = new Stack<>();
+		this.background = new AnimatedBackground();
 	}
 
 	public void clear() {
@@ -27,6 +30,11 @@ public class StateMachine {
 		menus.add(menu);
 	}
 
+	public void overrideState(BaseView menu) {
+		menus.getLast().cleanResources();
+		menus.set(menus.size() - 1, menu);
+	}
+
 	public void popState() {
 		menus.getLast().cleanResources();
 		menus.pop();
@@ -40,12 +48,7 @@ public class StateMachine {
 
 	public void render() {
 		var displaySize = ImGui.getIO().getDisplaySize();
-		ImGui.setNextWindowPos(new ImVec2(0.0f, 0.0f));
-		ImGui.setNextWindowSize(displaySize);
-		ImGui.begin("Background", null, ImGuiWindowFlags.NoDecoration | ImGuiWindowFlags.NoMove
-		| ImGuiWindowFlags.NoSavedSettings | ImGuiWindowFlags.NoBackground  | ImGuiWindowFlags.NoBringToFrontOnFocus | ImGuiWindowFlags.NoInputs);
-		ImGui.image(Images.BACKGROUND, displaySize, new ImVec2(0, 0));
-		ImGui.end();
+		this.background.render();
 		ImGui.setNextWindowPos(new ImVec2(0.0f, 0.0f));
 		ImGui.setNextWindowSize(displaySize);
 		ImGui.begin("##Main Window", null, ImGuiWindowFlags.NoDecoration | ImGuiWindowFlags.NoMove

app/src/main/java/org/polytech/ryuk/gui/menu/SudokuView.java

@@ -1,16 +1,17 @@
-package gui.menu;
+package org.polytech.ryuk.gui.menu;
 
 import java.util.concurrent.CancellationException;
 
-import gui.widget.SudokuRenderer;
+import org.polytech.ryuk.gui.widget.SudokuRenderer;
+import org.polytech.ryuk.sudoku.io.SudokuSerializer;
+import org.polytech.ryuk.sudoku.solver.BacktrackingSolver;
+import org.polytech.ryuk.sudoku.solver.HumanSolver;
+import org.polytech.ryuk.sudoku.solver.MixedSolver;
+import org.polytech.ryuk.sudoku.solver.Solver;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
+
 import imgui.ImGui;
 import imgui.ImGuiStyle;
-import sudoku.io.SudokuSerializer;
-import sudoku.solver.BacktrackingSolver;
-import sudoku.solver.HumanSolver;
-import sudoku.solver.MixedSolver;
-import sudoku.solver.Solver;
-import sudoku.structure.MultiDoku;
 
 public class SudokuView extends BaseView {
 

app/src/main/java/org/polytech/ryuk/gui/widget/LeaderboardRenderer.java

@@ -0,0 +1,74 @@
+package org.polytech.ryuk.gui.widget;
+
+import org.polytech.ryuk.game.Game;
+import org.polytech.ryuk.game.Player;
+
+import imgui.ImGui;
+import imgui.ImVec2;
+import imgui.ImVec4;
+import imgui.flag.ImGuiCol;
+import imgui.flag.ImGuiStyleVar;
+
+public class LeaderboardRenderer {
+
+	private final Game game;
+	private final Player currentPlayer;
+
+	private final float cellHeight = 75;
+	private final ImVec2 cellSize = new ImVec2(12 * cellHeight, cellHeight);
+	private final ImVec2 rankSize = new ImVec2(cellHeight, cellHeight);
+	private final ImVec2 scoreSize = rankSize;
+	private final ImVec2 nameSize = new ImVec2(cellSize.x - cellHeight * 2.0f, cellHeight);
+	private final ImVec4 cellColorPlayer = new ImVec4(0.20f, 0.67f, 1.0f, 0.5f);
+	private final ImVec4 cellColorEnemy = new ImVec4(1.0f, 0.0f, 0.0f, 0.5f);
+	private final int maxPlayersShowed = 2;
+
+	private final int emptyCellCount;
+
+	public LeaderboardRenderer(Game game, Player player) {
+		this.game = game;
+		this.currentPlayer = player;
+		this.emptyCellCount = game.getDoku().getEmptyCells().size();
+	}
+
+	private void renderRank(int rank) {
+		ImGui.button(Integer.toString(rank), rankSize);
+	}
+
+	private void renderName(String name) {
+		ImGui.button(name, nameSize);
+	}
+
+	private void renderScore(int score) {
+		ImGui.button(Integer.toString(score), scoreSize);
+	}
+
+	private void renderCell(Player player, int rank, ImVec4 color) {
+		ImGui.pushStyleColor(ImGuiCol.Button, color);
+		ImGui.pushStyleColor(ImGuiCol.ButtonHovered, color);
+		ImGui.pushStyleColor(ImGuiCol.ButtonActive, color);
+		ImGui.beginChild(player.getPseudo() + "##" + player.getId(), cellSize);
+		renderRank(rank);
+		ImGui.sameLine();
+		renderName(player.getPseudo());
+		ImGui.sameLine();
+		renderScore(emptyCellCount - player.getRemainingCells());
+		ImGui.endChild();
+		ImGui.popStyleColor(3);
+	}
+
+	public void render() {
+		var displaySize = ImGui.getIO().getDisplaySize();
+		ImGui.setCursorPosX(displaySize.x / 2.0f - cellSize.x / 2.0f);
+		ImGui.beginChild("Leaderboard", new ImVec2(cellSize.x + 15.0f, cellHeight * maxPlayersShowed));
+		ImGui.pushStyleVar(ImGuiStyleVar.ItemSpacing, new ImVec2());
+		ImGui.pushStyleVar(ImGuiStyleVar.FrameBorderSize, 3.0f);
+		for (int i = 0; i < game.getLeaderboard().size(); i++) {
+			Player player = game.getLeaderboard().get(i);
+			renderCell(player, i + 1, player == currentPlayer ? cellColorPlayer : cellColorEnemy);
+		}
+		ImGui.popStyleVar(2);
+		ImGui.endChild();
+	}
+
+}

app/src/main/java/org/polytech/ryuk/gui/widget/MultiPlayerCompleteProgress.java

@@ -0,0 +1,29 @@
+package org.polytech.ryuk.gui.widget;
+
+import org.polytech.ryuk.game.Game;
+import org.polytech.ryuk.game.Player;
+
+import imgui.ImGui;
+import imgui.ImVec2;
+
+public class MultiPlayerCompleteProgress {
+
+	private final Game game;
+	private final int emptyCellCount;
+	private final ImVec2 progressSize = new ImVec2(700, 50);
+	private final SmoothProgressBar progressBar;
+
+	public MultiPlayerCompleteProgress(Game game) {
+		this.game = game;
+		this.emptyCellCount = game.getDoku().getEmptyCells().size();
+		this.progressBar = new SmoothProgressBar();
+	}
+
+	public void render() {
+		Player firstPlayer = game.getLeaderboard().getFirst();
+		ImGui.setCursorPosX(ImGui.getIO().getDisplaySizeX() / 2.0f - progressSize.x / 2.0f);
+		String progressText = firstPlayer.getPseudo() + " - " + (emptyCellCount - firstPlayer.getRemainingCells()) + "/" + emptyCellCount;
+		this.progressBar.render(progressText, progressSize, 1.0f - firstPlayer.getRemainingCells() / (float) emptyCellCount);
+	}
+
+}

app/src/main/java/org/polytech/ryuk/gui/widget/SmoothProgressBar.java

@@ -0,0 +1,21 @@
+package org.polytech.ryuk.gui.widget;
+
+import imgui.ImGui;
+import imgui.ImVec2;
+
+public class SmoothProgressBar {
+
+	private float lastProgress = 0;
+	private final float speed = 2.0f;
+	private final float clipConstant = 0.001f;
+
+	public void render(String label, ImVec2 size, float progress) {
+		float delta = progress - lastProgress;
+		if (Math.abs(delta) < clipConstant)
+			lastProgress = progress;
+		else
+			lastProgress = lastProgress + delta * ImGui.getIO().getDeltaTime() * speed;
+		ImGui.progressBar(lastProgress, size, label);
+	}
+
+}

app/src/main/java/org/polytech/ryuk/gui/widget/SudokuRenderer.java

@@ -1,4 +1,4 @@
-package gui.widget;
+package org.polytech.ryuk.gui.widget;
 
 import java.util.HashMap;
 import java.util.HashSet;
@@ -6,24 +6,25 @@ import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
-import common.ConsumerSignal;
-import common.Signal;
-import gui.ColorGenerator;
-import gui.Fonts;
-import gui.Options;
-import gui.RenderableMultidoku;
-import gui.Symbols;
-import gui.ColorGenerator.Color;
+import org.polytech.ryuk.common.ConsumerSignal;
+import org.polytech.ryuk.common.Signal;
+import org.polytech.ryuk.gui.ColorGenerator;
+import org.polytech.ryuk.gui.ColorGenerator.Color;
+import org.polytech.ryuk.gui.Fonts;
+import org.polytech.ryuk.gui.Options;
+import org.polytech.ryuk.gui.RenderableMultidoku;
+import org.polytech.ryuk.gui.Symbols;
+import org.polytech.ryuk.sudoku.constraint.Constraint;
+import org.polytech.ryuk.sudoku.structure.Block;
+import org.polytech.ryuk.sudoku.structure.Cell;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
+import org.polytech.ryuk.sudoku.structure.Sudoku;
+
 import imgui.ImGui;
 import imgui.ImVec2;
 import imgui.ImVec4;
 import imgui.flag.ImGuiCol;
 import imgui.flag.ImGuiStyleVar;
-import sudoku.constraint.Constraint;
-import sudoku.structure.Block;
-import sudoku.structure.Cell;
-import sudoku.structure.MultiDoku;
-import sudoku.structure.Sudoku;
 
 public class SudokuRenderer {
 
@@ -107,7 +108,7 @@ public class SudokuRenderer {
 		if (offsetX > 0) {
 			ImGui.setCursorPosX(offsetX);
 		}
-		ImGui.beginChild(1, new ImVec2(cellSize.x * doku.getWidth(), cellSize.y * doku.getHeight()));
+		ImGui.beginChild("sudokuChild", new ImVec2(cellSize.x * doku.getWidth(), cellSize.y * doku.getHeight()));
 
 		ImGui.pushStyleVar(ImGuiStyleVar.FrameBorderSize, 2.0f);
 		ImGui.pushStyleVar(ImGuiStyleVar.ItemSpacing, new ImVec2(0.0f, 0.0f));

app/src/main/java/org/polytech/ryuk/gui/widget/SudokuSelector.java

@@ -1,19 +1,20 @@
-package gui.widget;
+package org.polytech.ryuk.gui.widget;
 
 import java.util.ArrayList;
 import java.util.List;
 
-import common.ConsumerSignal;
-import gui.SudokuType;
+import org.polytech.ryuk.common.ConsumerSignal;
+import org.polytech.ryuk.gui.SudokuType;
+import org.polytech.ryuk.sudoku.constraint.Constraint;
+import org.polytech.ryuk.sudoku.structure.Difficulty;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
+import org.polytech.ryuk.sudoku.structure.SudokuFactory;
+
 import imgui.ImGui;
 import imgui.extension.imguifiledialog.ImGuiFileDialog;
 import imgui.extension.imguifiledialog.flag.ImGuiFileDialogFlags;
 import imgui.type.ImBoolean;
 import imgui.type.ImInt;
-import sudoku.constraint.Constraint;
-import sudoku.structure.Difficulty;
-import sudoku.structure.MultiDoku;
-import sudoku.structure.SudokuFactory;
 
 public class SudokuSelector {
 

app/src/main/java/org/polytech/ryuk/gui/widget/TimerRenderer.java

@@ -0,0 +1,29 @@
+package org.polytech.ryuk.gui.widget;
+
+import java.time.Instant;
+
+import imgui.ImGui;
+
+public class TimerRenderer {
+
+	private final long endTime;
+
+	public TimerRenderer(Instant startTime, long duration) {
+		this.endTime = startTime.getEpochSecond() + duration;
+	}
+
+	private long getTimeRemaining() {
+		long currentTime = Instant.now().getEpochSecond();
+		return endTime - currentTime;
+	}
+
+	public void render() {
+		long seconds = getTimeRemaining();
+		long minutes = seconds / 60;
+		String text = String.format("%02d:%02d", minutes, seconds % 60);
+		var textSize = ImGui.calcTextSize(text);
+		ImGui.setCursorPosX(ImGui.getIO().getDisplaySizeX() / 2.0f - textSize.x / 2.0f);
+		ImGui.text(text);
+	}
+
+}

app/src/main/java/org/polytech/ryuk/network/Connexion.java

@@ -1,11 +1,11 @@
-package network;
+package org.polytech.ryuk.network;
 
 import java.io.IOException;
 import java.io.ObjectOutputStream;
 import java.net.Socket;
 
-import network.protocol.Packet;
-import network.protocol.PacketVisitor;
+import org.polytech.ryuk.network.protocol.Packet;
+import org.polytech.ryuk.network.protocol.PacketVisitor;
 
 public abstract class Connexion implements PacketVisitor {
 	

app/src/main/java/org/polytech/ryuk/network/ConnexionThread.java

@@ -1,9 +1,9 @@
-package network;
+package org.polytech.ryuk.network;
 
 import java.io.IOException;
 import java.io.ObjectInputStream;
 
-import network.protocol.Packet;
+import org.polytech.ryuk.network.protocol.Packet;
 
 public class ConnexionThread extends Thread {
 

app/src/main/java/org/polytech/ryuk/network/client/Client.java

@@ -1,17 +1,18 @@
-package network.client;
+package org.polytech.ryuk.network.client;
 
 import java.io.IOException;
 import java.net.UnknownHostException;
 import java.util.Random;
 
-import common.Signal;
-import game.Game;
-import game.Player;
-import network.protocol.packets.ChangeCellPacket;
-import network.protocol.packets.LoginPacket;
-import sudoku.structure.Cell;
-import sudoku.structure.MultiDoku;
-import sudoku.structure.Sudoku;
+import org.polytech.ryuk.common.ConsumerSignal;
+import org.polytech.ryuk.common.Signal;
+import org.polytech.ryuk.game.Game;
+import org.polytech.ryuk.game.Player;
+import org.polytech.ryuk.network.protocol.packets.ChangeCellPacket;
+import org.polytech.ryuk.network.protocol.packets.LoginPacket;
+import org.polytech.ryuk.sudoku.structure.Cell;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
+import org.polytech.ryuk.sudoku.structure.Sudoku;
 
 public class Client {
 	private final ClientConnexion clientConnection;
@@ -21,6 +22,7 @@ public class Client {
 	public final Signal onDisconnect = new Signal();
 	public final Signal onClosed = new Signal();
 	public final Signal onGameStarted = new Signal();
+	public final ConsumerSignal<Player> onGameEnd = new ConsumerSignal<>();
 
 	Player player;
 

app/src/main/java/org/polytech/ryuk/network/client/ClientConnexion.java

@@ -1,22 +1,22 @@
-package network.client;
+package org.polytech.ryuk.network.client;
 
 import java.io.IOException;
 import java.net.Socket;
 import java.net.UnknownHostException;
 
-import game.Player;
-import network.Connexion;
-import network.protocol.packets.ChangeCellPacket;
-import network.protocol.packets.ConnexionInfoPacket;
-import network.protocol.packets.DisconnectPacket;
-import network.protocol.packets.EndGamePacket;
-import network.protocol.packets.KeepAlivePacket;
-import network.protocol.packets.LoginPacket;
-import network.protocol.packets.PlayerJoinPacket;
-import network.protocol.packets.PlayerLeavePacket;
-import network.protocol.packets.StartGamePacket;
-import network.protocol.packets.UpdatePlayerScorePacket;
-import sudoku.io.SudokuSerializer;
+import org.polytech.ryuk.game.Player;
+import org.polytech.ryuk.network.Connexion;
+import org.polytech.ryuk.network.protocol.packets.ChangeCellPacket;
+import org.polytech.ryuk.network.protocol.packets.ConnexionInfoPacket;
+import org.polytech.ryuk.network.protocol.packets.DisconnectPacket;
+import org.polytech.ryuk.network.protocol.packets.EndGamePacket;
+import org.polytech.ryuk.network.protocol.packets.KeepAlivePacket;
+import org.polytech.ryuk.network.protocol.packets.LoginPacket;
+import org.polytech.ryuk.network.protocol.packets.PlayerJoinPacket;
+import org.polytech.ryuk.network.protocol.packets.PlayerLeavePacket;
+import org.polytech.ryuk.network.protocol.packets.StartGamePacket;
+import org.polytech.ryuk.network.protocol.packets.UpdatePlayerScorePacket;
+import org.polytech.ryuk.sudoku.io.SudokuSerializer;
 
 public class ClientConnexion extends Connexion {
 
@@ -71,22 +71,23 @@ public class ClientConnexion extends Connexion {
 
 	@Override
 	public void visitPacket(StartGamePacket packet) {
-		this.client.getGame().startGame(SudokuSerializer.deserializeSudoku(packet.getSerializedSudoku()));
+		this.client.getGame().startGame(SudokuSerializer.deserializeSudoku(packet.getSerializedSudoku()),
+				packet.getInstant(), packet.getGameDuration());
 		this.client.onGameStarted.emit();
 	}
 
 	@Override
 	public void visitPacket(EndGamePacket packet) {
-		// TODO Auto-generated method stub
-		throw new UnsupportedOperationException("Unimplemented method 'visitPacket'");
+		Player winner = this.client.getGame().getLeaderboard().getFirst();
+		this.client.getGame().stopGame();
+		this.client.onGameEnd.emit(winner);
 	}
 
 	@Override
 	public void visitPacket(UpdatePlayerScorePacket packet) {
 		Player player = this.client.getGame().getPlayerById(packet.getPlayerId());
-		assert(player != null);
-		player.setScore(packet.getCellsLeft());
-		System.out.println("Score for " + player.getPseudo() + " : " + packet.getCellsLeft());
+		assert (player != null);
+		this.client.getGame().setPlayerRemainingCells(player, packet.getCellsLeft());
 	}
 
 	@Override

app/src/main/java/org/polytech/ryuk/network/protocol/Packet.java

@@ -1,4 +1,4 @@
-package network.protocol;
+package org.polytech.ryuk.network.protocol;
 
 import java.io.Serializable;
 

app/src/main/java/org/polytech/ryuk/network/protocol/PacketVisitor.java

@@ -0,0 +1,31 @@
+package org.polytech.ryuk.network.protocol;
+
+import org.polytech.ryuk.network.protocol.packets.ChangeCellPacket;
+import org.polytech.ryuk.network.protocol.packets.ConnexionInfoPacket;
+import org.polytech.ryuk.network.protocol.packets.DisconnectPacket;
+import org.polytech.ryuk.network.protocol.packets.EndGamePacket;
+import org.polytech.ryuk.network.protocol.packets.KeepAlivePacket;
+import org.polytech.ryuk.network.protocol.packets.LoginPacket;
+import org.polytech.ryuk.network.protocol.packets.PlayerJoinPacket;
+import org.polytech.ryuk.network.protocol.packets.PlayerLeavePacket;
+import org.polytech.ryuk.network.protocol.packets.StartGamePacket;
+import org.polytech.ryuk.network.protocol.packets.UpdatePlayerScorePacket;
+
+public interface PacketVisitor {
+
+	default void visit(Packet packet) {
+		packet.accept(this);
+	}
+	
+	void visitPacket(ConnexionInfoPacket packet);
+	void visitPacket(DisconnectPacket packet);
+	void visitPacket(KeepAlivePacket packet);
+	void visitPacket(LoginPacket packet);
+	void visitPacket(PlayerJoinPacket packet);
+	void visitPacket(PlayerLeavePacket packet);
+	void visitPacket(StartGamePacket packet);
+	void visitPacket(EndGamePacket packet);
+	void visitPacket(UpdatePlayerScorePacket packet);
+	void visitPacket(ChangeCellPacket packet);
+	
+}

app/src/main/java/org/polytech/ryuk/network/protocol/Packets.java

@@ -1,4 +1,4 @@
-package network.protocol;
+package org.polytech.ryuk.network.protocol;
 
 public enum Packets {
 

app/src/main/java/org/polytech/ryuk/network/protocol/packets/ChangeCellPacket.java

@@ -1,8 +1,8 @@
-package network.protocol.packets;
+package org.polytech.ryuk.network.protocol.packets;
 
-import network.protocol.Packet;
-import network.protocol.PacketVisitor;
-import network.protocol.Packets;
+import org.polytech.ryuk.network.protocol.Packet;
+import org.polytech.ryuk.network.protocol.PacketVisitor;
+import org.polytech.ryuk.network.protocol.Packets;
 
 public class ChangeCellPacket extends Packet {
 

app/src/main/java/org/polytech/ryuk/network/protocol/packets/ConnexionInfoPacket.java

@@ -1,8 +1,8 @@
-package network.protocol.packets;
+package org.polytech.ryuk.network.protocol.packets;
 
-import network.protocol.Packet;
-import network.protocol.PacketVisitor;
-import network.protocol.Packets;
+import org.polytech.ryuk.network.protocol.Packet;
+import org.polytech.ryuk.network.protocol.PacketVisitor;
+import org.polytech.ryuk.network.protocol.Packets;
 
 public class ConnexionInfoPacket extends Packet {
 

app/src/main/java/org/polytech/ryuk/network/protocol/packets/DisconnectPacket.java

@@ -1,8 +1,8 @@
-package network.protocol.packets;
+package org.polytech.ryuk.network.protocol.packets;
 
-import network.protocol.Packet;
-import network.protocol.PacketVisitor;
-import network.protocol.Packets;
+import org.polytech.ryuk.network.protocol.Packet;
+import org.polytech.ryuk.network.protocol.PacketVisitor;
+import org.polytech.ryuk.network.protocol.Packets;
 
 public class DisconnectPacket extends Packet {
 

app/src/main/java/org/polytech/ryuk/network/protocol/packets/EndGamePacket.java

@@ -0,0 +1,18 @@
+package org.polytech.ryuk.network.protocol.packets;
+
+import org.polytech.ryuk.network.protocol.Packet;
+import org.polytech.ryuk.network.protocol.PacketVisitor;
+import org.polytech.ryuk.network.protocol.Packets;
+
+public class EndGamePacket extends Packet {
+
+	static private final long serialVersionUID = Packets.EndGame.ordinal();
+
+	public EndGamePacket() { }
+
+	@Override
+	public void accept(PacketVisitor packetVisitor) {
+		packetVisitor.visitPacket(this);
+	}
+
+}

app/src/main/java/org/polytech/ryuk/network/protocol/packets/KeepAlivePacket.java

@@ -1,8 +1,8 @@
-package network.protocol.packets;
+package org.polytech.ryuk.network.protocol.packets;
 
-import network.protocol.Packet;
-import network.protocol.PacketVisitor;
-import network.protocol.Packets;
+import org.polytech.ryuk.network.protocol.Packet;
+import org.polytech.ryuk.network.protocol.PacketVisitor;
+import org.polytech.ryuk.network.protocol.Packets;
 
 public class KeepAlivePacket extends Packet {
 

app/src/main/java/org/polytech/ryuk/network/protocol/packets/LoginPacket.java

@@ -1,8 +1,8 @@
-package network.protocol.packets;
+package org.polytech.ryuk.network.protocol.packets;
 
-import network.protocol.Packet;
-import network.protocol.PacketVisitor;
-import network.protocol.Packets;
+import org.polytech.ryuk.network.protocol.Packet;
+import org.polytech.ryuk.network.protocol.PacketVisitor;
+import org.polytech.ryuk.network.protocol.Packets;
 
 public class LoginPacket extends Packet {
 

app/src/main/java/org/polytech/ryuk/network/protocol/packets/PlayerJoinPacket.java

@@ -1,9 +1,9 @@
-package network.protocol.packets;
+package org.polytech.ryuk.network.protocol.packets;
 
-import game.Player;
-import network.protocol.Packet;
-import network.protocol.PacketVisitor;
-import network.protocol.Packets;
+import org.polytech.ryuk.game.Player;
+import org.polytech.ryuk.network.protocol.Packet;
+import org.polytech.ryuk.network.protocol.PacketVisitor;
+import org.polytech.ryuk.network.protocol.Packets;
 
 public class PlayerJoinPacket extends Packet{
 

app/src/main/java/org/polytech/ryuk/network/protocol/packets/PlayerLeavePacket.java

@@ -1,8 +1,8 @@
-package network.protocol.packets;
+package org.polytech.ryuk.network.protocol.packets;
 
-import network.protocol.Packet;
-import network.protocol.PacketVisitor;
-import network.protocol.Packets;
+import org.polytech.ryuk.network.protocol.Packet;
+import org.polytech.ryuk.network.protocol.PacketVisitor;
+import org.polytech.ryuk.network.protocol.Packets;
 
 public class PlayerLeavePacket extends Packet{
 

app/src/main/java/org/polytech/ryuk/network/protocol/packets/StartGamePacket.java

@@ -0,0 +1,41 @@
+package org.polytech.ryuk.network.protocol.packets;
+
+import java.time.Instant;
+
+import org.polytech.ryuk.network.protocol.Packet;
+import org.polytech.ryuk.network.protocol.PacketVisitor;
+import org.polytech.ryuk.network.protocol.Packets;
+
+public class StartGamePacket extends Packet {
+
+	static private final long serialVersionUID = Packets.StartGame.ordinal();
+
+	private final String serializedSudoku;
+	// used to resume game
+	private final Instant instant;
+	private final long gameDuration;
+
+	public StartGamePacket(String serializedSudoku, Instant instant, long gameDuration) {
+		this.serializedSudoku = serializedSudoku;
+		this.instant = instant;
+		this.gameDuration = gameDuration;
+	}
+
+	public String getSerializedSudoku() {
+		return serializedSudoku;
+	}
+
+	public Instant getInstant() {
+		return instant;
+	}
+
+	public long getGameDuration() {
+		return gameDuration;
+	}
+
+	@Override
+	public void accept(PacketVisitor packetVisitor) {
+		packetVisitor.visitPacket(this);
+	}
+
+}

app/src/main/java/org/polytech/ryuk/network/protocol/packets/UpdatePlayerScorePacket.java

@@ -1,8 +1,8 @@
-package network.protocol.packets;
+package org.polytech.ryuk.network.protocol.packets;
 
-import network.protocol.Packet;
-import network.protocol.PacketVisitor;
-import network.protocol.Packets;
+import org.polytech.ryuk.network.protocol.Packet;
+import org.polytech.ryuk.network.protocol.PacketVisitor;
+import org.polytech.ryuk.network.protocol.Packets;
 
 public class UpdatePlayerScorePacket extends Packet {
 

app/src/main/java/org/polytech/ryuk/network/server/KeepAliveHandler.java

@@ -1,8 +1,8 @@
-package network.server;
+package org.polytech.ryuk.network.server;
 
 import java.util.Random;
 
-import network.protocol.packets.KeepAlivePacket;
+import org.polytech.ryuk.network.protocol.packets.KeepAlivePacket;
 
 public class KeepAliveHandler {
 

app/src/main/java/org/polytech/ryuk/network/server/Server.java

@@ -1,16 +1,19 @@
-package network.server;
+package org.polytech.ryuk.network.server;
 
 import java.io.IOException;
 import java.net.ServerSocket;
+import java.time.Instant;
 import java.util.ArrayList;
 import java.util.List;
 
-import game.Game;
-import game.Player;
-import network.protocol.Packet;
-import network.protocol.packets.StartGamePacket;
-import sudoku.io.SudokuSerializer;
-import sudoku.structure.MultiDoku;
+import org.polytech.ryuk.game.Game;
+import org.polytech.ryuk.game.Game.GameState;
+import org.polytech.ryuk.game.Player;
+import org.polytech.ryuk.network.protocol.Packet;
+import org.polytech.ryuk.network.protocol.packets.EndGamePacket;
+import org.polytech.ryuk.network.protocol.packets.StartGamePacket;
+import org.polytech.ryuk.sudoku.io.SudokuSerializer;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
 
 public class Server {
 
@@ -37,7 +40,16 @@ public class Server {
 		}
 	}
 
-	public void update() {
+	private void checkTimer() {
+		if (getGame() == null || getGame().getGameState() != GameState.GameGoing)
+			return;
+		long now = Instant.now().getEpochSecond();
+		long end = getGame().getStartTime().getEpochSecond() + getGame().getGameDuration();
+		if (now > end)
+			stopGame();
+	}
+
+	private void checkConnexions() {
 		for (var it = connexions.iterator(); it.hasNext();) {
 			ServerConnexion connexion = it.next();
 			if (!connexion.update()) {
@@ -48,6 +60,11 @@ public class Server {
 		}
 	}
 
+	public void update() {
+		checkTimer();
+		checkConnexions();
+	}
+
 	public void stop() {
 		this.acceptThread.cancel();
 		this.logicThread.cancel();
@@ -68,12 +85,19 @@ public class Server {
 		return game;
 	}
 
-	public void startGame(MultiDoku doku) {
-		this.game.startGame(doku);
+	public void startGame(MultiDoku doku, long gameDuration) {
+		Instant now = Instant.now();
+		this.game.startGame(doku, now, gameDuration);
 		for (ServerConnexion connexion : this.connexions) {
 			connexion.setSudoku(doku.clone());
 		}
-		broadcastPacket(new StartGamePacket(SudokuSerializer.serializeSudoku(doku).toString()));
+		broadcastPacket(new StartGamePacket(SudokuSerializer.serializeSudoku(doku).toString(), now, gameDuration));
+	}
+
+	public void stopGame() {
+		// we don't need to specify the winner since it has to be the first
+		broadcastPacket(new EndGamePacket());
+		getGame().stopGame();
 	}
 
 }

app/src/main/java/org/polytech/ryuk/network/server/ServerAcceptThread.java

@@ -1,4 +1,4 @@
-package network.server;
+package org.polytech.ryuk.network.server;
 
 import java.io.IOException;
 import java.net.Socket;

app/src/main/java/org/polytech/ryuk/network/server/ServerConnexion.java

@@ -1,24 +1,25 @@
-package network.server;
+package org.polytech.ryuk.network.server;
 
 import java.io.IOException;
 import java.net.Socket;
 
-import game.Player;
-import game.Game.GameState;
-import network.Connexion;
-import network.protocol.packets.ChangeCellPacket;
-import network.protocol.packets.ConnexionInfoPacket;
-import network.protocol.packets.DisconnectPacket;
-import network.protocol.packets.EndGamePacket;
-import network.protocol.packets.KeepAlivePacket;
-import network.protocol.packets.LoginPacket;
-import network.protocol.packets.PlayerJoinPacket;
-import network.protocol.packets.PlayerLeavePacket;
-import network.protocol.packets.StartGamePacket;
-import network.protocol.packets.UpdatePlayerScorePacket;
-import sudoku.io.SudokuSerializer;
-import sudoku.structure.Cell;
-import sudoku.structure.MultiDoku;
+import org.polytech.ryuk.game.Game;
+import org.polytech.ryuk.game.Game.GameState;
+import org.polytech.ryuk.game.Player;
+import org.polytech.ryuk.network.Connexion;
+import org.polytech.ryuk.network.protocol.packets.ChangeCellPacket;
+import org.polytech.ryuk.network.protocol.packets.ConnexionInfoPacket;
+import org.polytech.ryuk.network.protocol.packets.DisconnectPacket;
+import org.polytech.ryuk.network.protocol.packets.EndGamePacket;
+import org.polytech.ryuk.network.protocol.packets.KeepAlivePacket;
+import org.polytech.ryuk.network.protocol.packets.LoginPacket;
+import org.polytech.ryuk.network.protocol.packets.PlayerJoinPacket;
+import org.polytech.ryuk.network.protocol.packets.PlayerLeavePacket;
+import org.polytech.ryuk.network.protocol.packets.StartGamePacket;
+import org.polytech.ryuk.network.protocol.packets.UpdatePlayerScorePacket;
+import org.polytech.ryuk.sudoku.io.SudokuSerializer;
+import org.polytech.ryuk.sudoku.structure.Cell;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
 
 public class ServerConnexion extends Connexion {
 
@@ -62,17 +63,20 @@ public class ServerConnexion extends Connexion {
 		for (Player p : this.server.getGame().getPlayers().values()) {
 			if (p.getId() != player.getId()) {
 				sendPacket(new PlayerJoinPacket(p));
-				sendPacket(new UpdatePlayerScorePacket(p.getId(), p.getScore()));
+				sendPacket(new UpdatePlayerScorePacket(p.getId(), p.getRemainingCells()));
 			}
 		}
 
 		this.server.broadcastPacket(new PlayerJoinPacket(player));
 		sendPacket(new ConnexionInfoPacket(player.getId()));
 
-		if (this.server.getGame().getGameState() == GameState.GameGoing) {
-			setSudoku(this.server.getGame().getDoku().clone());
+		Game game = this.server.getGame();
+
+		if (game.getGameState() == GameState.GameGoing) {
+			setSudoku(game.getDoku().clone());
 			sendPacket(
-					new StartGamePacket(SudokuSerializer.serializeSudoku(this.server.getGame().getDoku()).toString()));
+					new StartGamePacket(SudokuSerializer.serializeSudoku(game.getDoku()).toString(),
+							game.getStartTime(), game.getGameDuration()));
 		}
 	}
 
@@ -135,22 +139,29 @@ public class ServerConnexion extends Connexion {
 		}
 		if (cell.getSymbolIndex() != Cell.NOSYMBOL && packet.getNewValue() == Cell.NOSYMBOL) {
 			cell.empty();
-			player.setScore(player.getScore() + 1);
-			this.server.broadcastPacket(new UpdatePlayerScorePacket(player.getId(), player.getScore()));
+			this.server.getGame().setPlayerRemainingCells(player, player.getRemainingCells() + 1);
+			this.server.broadcastPacket(new UpdatePlayerScorePacket(player.getId(), player.getRemainingCells()));
 			return;
 		}
 		// on rajoute un chiffre à la grille
 		if (cell.trySetValue(packet.getNewValue())) {
-			player.setScore(player.getScore() - 1);
-			this.server.broadcastPacket(new UpdatePlayerScorePacket(player.getId(), player.getScore()));
+			this.server.getGame().setPlayerRemainingCells(player, player.getRemainingCells() - 1);
+			this.server.broadcastPacket(new UpdatePlayerScorePacket(player.getId(), player.getRemainingCells()));
+		}
+		checkWin();
+	}
+
+	private void checkWin() {
+		if (this.player.getRemainingCells() == 0) {
+			this.server.stopGame();
 		}
 	}
 
 	public void setSudoku(MultiDoku doku) {
 		this.doku = doku;
 		assert (player != null);
-		player.setScore(this.doku.getEmptyCells().size());
-		this.server.broadcastPacket(new UpdatePlayerScorePacket(player.getId(), player.getScore()));
+		this.server.getGame().setPlayerRemainingCells(player, this.doku.getEmptyCells().size());
+		this.server.broadcastPacket(new UpdatePlayerScorePacket(player.getId(), player.getRemainingCells()));
 	}
 
 }

app/src/main/java/org/polytech/ryuk/network/server/ServerLogicThread.java

@@ -1,4 +1,4 @@
-package network.server;
+package org.polytech.ryuk.network.server;
 
 public class ServerLogicThread extends Thread {
 
@@ -19,7 +19,7 @@ public class ServerLogicThread extends Thread {
 			try {
 				Thread.sleep(50);
 			} catch (InterruptedException e) {
-				// e.printStackTrace();
+				e.printStackTrace();
 				break;
 			}
 		}

app/src/main/java/org/polytech/ryuk/sudoku/Main.java

@@ -1,9 +1,9 @@
 /*
  * This Java source file was generated by the Gradle 'init' task.
  */
-package sudoku;
+package org.polytech.ryuk.sudoku;
 
-import sudoku.io.ConsoleInterface;
+import org.polytech.ryuk.sudoku.io.ConsoleInterface;
 
 public class Main {
     public String getGreeting() {

app/src/main/java/org/polytech/ryuk/sudoku/constraint/BlockConstraint.java

@@ -1,7 +1,7 @@
-package sudoku.constraint;
+package org.polytech.ryuk.sudoku.constraint;
 
-import sudoku.structure.Block;
-import sudoku.structure.Sudoku;
+import org.polytech.ryuk.sudoku.structure.Block;
+import org.polytech.ryuk.sudoku.structure.Sudoku;
 
 public class BlockConstraint implements IConstraint{
 

app/src/main/java/org/polytech/ryuk/sudoku/constraint/ColumnConstraint.java

@@ -1,7 +1,7 @@
-package sudoku.constraint;
+package org.polytech.ryuk.sudoku.constraint;
 
-import sudoku.structure.Cell;
-import sudoku.structure.Sudoku;
+import org.polytech.ryuk.sudoku.structure.Cell;
+import org.polytech.ryuk.sudoku.structure.Sudoku;
 
 public class ColumnConstraint implements IConstraint {
 

app/src/main/java/org/polytech/ryuk/sudoku/constraint/Constraint.java

@@ -1,8 +1,8 @@
-package sudoku.constraint;
+package org.polytech.ryuk.sudoku.constraint;
 
 import java.util.List;
 
-import sudoku.structure.Sudoku;
+import org.polytech.ryuk.sudoku.structure.Sudoku;
 
 public enum Constraint {
 

app/src/main/java/org/polytech/ryuk/sudoku/constraint/DiagonalConstraint.java

@@ -1,6 +1,6 @@
-package sudoku.constraint;
+package org.polytech.ryuk.sudoku.constraint;
 
-import sudoku.structure.Sudoku;
+import org.polytech.ryuk.sudoku.structure.Sudoku;
 
 public class DiagonalConstraint implements IConstraint {
 

app/src/main/java/org/polytech/ryuk/sudoku/constraint/IConstraint.java

@@ -1,9 +1,9 @@
-package sudoku.constraint;
+package org.polytech.ryuk.sudoku.constraint;
 
 import java.util.ArrayList;
 import java.util.List;
 
-import sudoku.structure.Sudoku;
+import org.polytech.ryuk.sudoku.structure.Sudoku;
 
 public interface IConstraint {
 

app/src/main/java/org/polytech/ryuk/sudoku/constraint/LineConstraint.java

@@ -1,6 +1,6 @@
-package sudoku.constraint;
+package org.polytech.ryuk.sudoku.constraint;
 
-import sudoku.structure.Sudoku;
+import org.polytech.ryuk.sudoku.structure.Sudoku;
 
 public class LineConstraint implements IConstraint {
 

app/src/main/java/org/polytech/ryuk/sudoku/io/ConsoleInterface.java

@@ -1,15 +1,15 @@
-package sudoku.io;
+package org.polytech.ryuk.sudoku.io;
 
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Scanner;
 
-import sudoku.constraint.Constraint;
-import sudoku.solver.RandomSolver;
-import sudoku.structure.Difficulty;
-import sudoku.structure.MultiDoku;
-import sudoku.structure.Sudoku;
-import sudoku.structure.SudokuFactory;
+import org.polytech.ryuk.sudoku.constraint.Constraint;
+import org.polytech.ryuk.sudoku.solver.RandomSolver;
+import org.polytech.ryuk.sudoku.structure.Difficulty;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
+import org.polytech.ryuk.sudoku.structure.Sudoku;
+import org.polytech.ryuk.sudoku.structure.SudokuFactory;
 
 public class ConsoleInterface {
     public Scanner reader = new Scanner(System.in);

app/src/main/java/org/polytech/ryuk/sudoku/io/SudokuFile.java

@@ -0,0 +1,7 @@
+package org.polytech.ryuk.sudoku.io;
+
+public class SudokuFile {
+
+	
+
+}

app/src/main/java/org/polytech/ryuk/sudoku/io/SudokuPrinter.java

@@ -1,7 +1,7 @@
-package sudoku.io;
+package org.polytech.ryuk.sudoku.io;
 
-import sudoku.structure.MultiDoku;
-import sudoku.structure.Sudoku;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
+import org.polytech.ryuk.sudoku.structure.Sudoku;
 
 public class SudokuPrinter {
 

app/src/main/java/org/polytech/ryuk/sudoku/io/SudokuSave.java

@@ -1,4 +1,4 @@
-package sudoku.io;
+package org.polytech.ryuk.sudoku.io;
 
 public class SudokuSave {
 

app/src/main/java/org/polytech/ryuk/sudoku/io/SudokuSerializer.java

@@ -1,4 +1,4 @@
-package sudoku.io;
+package org.polytech.ryuk.sudoku.io;
 
 import java.io.File;
 import java.io.FileWriter;
@@ -10,12 +10,11 @@ import java.util.List;
 
 import org.json.JSONArray;
 import org.json.JSONObject;
-
-import sudoku.constraint.Constraint;
-import sudoku.structure.Block;
-import sudoku.structure.Cell;
-import sudoku.structure.MultiDoku;
-import sudoku.structure.Sudoku;
+import org.polytech.ryuk.sudoku.constraint.Constraint;
+import org.polytech.ryuk.sudoku.structure.Block;
+import org.polytech.ryuk.sudoku.structure.Cell;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
+import org.polytech.ryuk.sudoku.structure.Sudoku;
 
 public class SudokuSerializer {
 

app/src/main/java/org/polytech/ryuk/sudoku/solver/BacktrackingSolver.java

@@ -1,10 +1,10 @@
-package sudoku.solver;
+package org.polytech.ryuk.sudoku.solver;
 
 import java.util.List;
 import java.util.concurrent.CancellationException;
 
-import sudoku.structure.Cell;
-import sudoku.structure.MultiDoku;
+import org.polytech.ryuk.sudoku.structure.Cell;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
 
 public class BacktrackingSolver implements Solver {
 

app/src/main/java/org/polytech/ryuk/sudoku/solver/HumanSolver.java

@@ -1,13 +1,13 @@
-package sudoku.solver;
+package org.polytech.ryuk.sudoku.solver;
 
 import java.util.List;
 import java.util.concurrent.CancellationException;
 import java.util.logging.Level;
 
-import sudoku.io.SudokuPrinter;
-import sudoku.structure.Cell;
-import sudoku.structure.MultiDoku;
-import sudoku.structure.Sudoku;
+import org.polytech.ryuk.sudoku.io.SudokuPrinter;
+import org.polytech.ryuk.sudoku.structure.Cell;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
+import org.polytech.ryuk.sudoku.structure.Sudoku;
 
 public class HumanSolver implements Solver {
 

app/src/main/java/org/polytech/ryuk/sudoku/solver/MixedSolver.java

@@ -1,14 +1,14 @@
-package sudoku.solver;
+package org.polytech.ryuk.sudoku.solver;
 
 import java.util.List;
 import java.util.Random;
 import java.util.concurrent.CancellationException;
 import java.util.logging.Level;
 
-import sudoku.io.SudokuPrinter;
-import sudoku.structure.Cell;
-import sudoku.structure.MultiDoku;
-import sudoku.structure.Sudoku;
+import org.polytech.ryuk.sudoku.io.SudokuPrinter;
+import org.polytech.ryuk.sudoku.structure.Cell;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
+import org.polytech.ryuk.sudoku.structure.Sudoku;
 
 public class MixedSolver implements Solver{
 
@@ -17,8 +17,6 @@ public class MixedSolver implements Solver{
      * backtracking.
      *
      * @param doku MultiDoku, MultiDoku à résoudre.
-     * @param rand Random, pour tester aléatoirement les symboles, lors du
-     *             backtracking.
      * @return boolean, valant true si le MultiDoku est résolu, false sinon.
      */
 	@Override
@@ -40,28 +38,19 @@ public class MixedSolver implements Solver{
             return true;
         }
 
-        List<Cell> cellsToFill = doku.getEmptyCells();
-        if (cellsToFill.isEmpty()) {
+        Cell cellToFill = doku.getFirstEmptyCell();
+        if (cellToFill == null) {
             return false;
         }
 
-        // Règles de déduction
-        for (Cell cellToFill : cellsToFill) {
-
         List<Integer> possibleSymbols = cellToFill.getPossibleSymbols();
-            if (possibleSymbols.size() != 1) {
-                continue;
-            }
 
+        if (possibleSymbols.size() == 1) {
             cellToFill.setSymbolIndex(possibleSymbols.getFirst());
-
-            return this.solve(doku);
+            if (this.solve(doku)) {
+                return true;
+            }
         }
-
-        // Si ça ne marche pas
-        // On fait du backtracking
-        Cell cellToFill = doku.getRandomEmptyCell(rand);
-        List<Integer> possibleSymbols = cellToFill.getPossibleSymbols();
 
         while (!possibleSymbols.isEmpty()) {
             int nextPossibleSymbolIndex = rand.nextInt(possibleSymbols.size());
@@ -71,9 +60,9 @@ public class MixedSolver implements Solver{
             if (this.solve(doku)) {
                 return true;
             }
-
             cellToFill.setSymbolIndex(Cell.NOSYMBOL);
             possibleSymbols.remove(nextPossibleSymbolIndex);
+
         }
 
         return false;

app/src/main/java/org/polytech/ryuk/sudoku/solver/RandomSolver.java

@@ -1,14 +1,14 @@
-package sudoku.solver;
+package org.polytech.ryuk.sudoku.solver;
 
 import java.util.List;
 import java.util.Random;
 import java.util.concurrent.CancellationException;
 import java.util.logging.Level;
 
-import sudoku.io.SudokuPrinter;
-import sudoku.structure.Cell;
-import sudoku.structure.MultiDoku;
-import sudoku.structure.Sudoku;
+import org.polytech.ryuk.sudoku.io.SudokuPrinter;
+import org.polytech.ryuk.sudoku.structure.Cell;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
+import org.polytech.ryuk.sudoku.structure.Sudoku;
 
 public class RandomSolver implements Solver {
 

app/src/main/java/org/polytech/ryuk/sudoku/solver/Solver.java

@@ -1,10 +1,10 @@
-package sudoku.solver;
+package org.polytech.ryuk.sudoku.solver;
 
 import java.util.List;
 import java.util.logging.Logger;
 
-import sudoku.structure.Cell;
-import sudoku.structure.MultiDoku;
+import org.polytech.ryuk.sudoku.structure.Cell;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
 
 public interface Solver {
 

app/src/main/java/org/polytech/ryuk/sudoku/solver/StupidSolver.java

@@ -1,9 +1,9 @@
-package sudoku.solver;
+package org.polytech.ryuk.sudoku.solver;
 
 import java.util.concurrent.CancellationException;
 
-import sudoku.structure.MultiDoku;
-import sudoku.structure.Sudoku;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
+import org.polytech.ryuk.sudoku.structure.Sudoku;
 
 /**
  * Class de test non utilisé

app/src/main/java/org/polytech/ryuk/sudoku/structure/Block.java

@@ -1,4 +1,4 @@
-package sudoku.structure;
+package org.polytech.ryuk.sudoku.structure;
 
 import java.util.ArrayList;
 import java.util.List;

app/src/main/java/org/polytech/ryuk/sudoku/structure/Cell.java

@@ -1,4 +1,4 @@
-package sudoku.structure;
+package org.polytech.ryuk.sudoku.structure;
 
 import java.util.ArrayList;
 import java.util.List;

app/src/main/java/org/polytech/ryuk/sudoku/structure/Coordinate.java

@@ -1,4 +1,4 @@
-package sudoku.structure;
+package org.polytech.ryuk.sudoku.structure;
 
 /**
  * Représente les coordonnées d'une Cell

app/src/main/java/org/polytech/ryuk/sudoku/structure/Difficulty.java

@@ -1,4 +1,4 @@
-package sudoku.structure;
+package org.polytech.ryuk.sudoku.structure;
 
 //TODO: melvyn va passer par là
 public enum Difficulty {

app/src/main/java/org/polytech/ryuk/sudoku/structure/MultiDoku.java

@@ -1,4 +1,4 @@
-package sudoku.structure;
+package org.polytech.ryuk.sudoku.structure;
 
 import java.util.ArrayList;
 import java.util.HashSet;
@@ -6,7 +6,7 @@ import java.util.List;
 import java.util.Random;
 import java.util.Set;
 
-import sudoku.io.SudokuSerializer;
+import org.polytech.ryuk.sudoku.io.SudokuSerializer;
 
 /**
  * @class MultiDoku
@@ -183,6 +183,15 @@ public class MultiDoku {
 		return emptyCells.get(randomIndex);
 	}
 
+	public void clearMutableCells() {
+		for (Sudoku s : getSubGrids()) {
+			for (Cell cell : s.getCells()) {
+				if (cell.isMutable())
+					cell.clearCurrentSymbol();
+			}
+		}
+	}
+
 	public MultiDoku clone() {
 		//TODO: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaah
 		return SudokuSerializer.deserializeSudoku(SudokuSerializer.serializeSudoku(this));

app/src/main/java/org/polytech/ryuk/sudoku/structure/StateManager.java

@@ -1,4 +1,4 @@
-package sudoku.structure;
+package org.polytech.ryuk.sudoku.structure;
 
 import java.util.HashMap;
 import java.util.Map;

app/src/main/java/org/polytech/ryuk/sudoku/structure/Sudoku.java

@@ -1,13 +1,10 @@
-package sudoku.structure;
-
-import sudoku.constraint.BlockConstraint;
-import sudoku.constraint.Constraint;
-import sudoku.constraint.IConstraint;
-import sudoku.io.SudokuPrinter;
+package org.polytech.ryuk.sudoku.structure;
 
 import java.util.ArrayList;
 import java.util.List;
 
+import org.polytech.ryuk.sudoku.constraint.Constraint;
+
 /**
  * @class Sudoku
  * @brief Représent un Sudoku

app/src/main/java/org/polytech/ryuk/sudoku/structure/SudokuFactory.java

@@ -1,4 +1,4 @@
-package sudoku.structure;
+package org.polytech.ryuk.sudoku.structure;
 
 import java.io.IOException;
 import java.nio.file.Files;
@@ -9,10 +9,10 @@ import java.util.List;
 import java.util.Map;
 import java.util.Random;
 
-import sudoku.constraint.Constraint;
-import sudoku.io.SudokuSerializer;
-import sudoku.solver.RandomSolver;
-import sudoku.solver.Solver;
+import org.polytech.ryuk.sudoku.constraint.Constraint;
+import org.polytech.ryuk.sudoku.io.SudokuSerializer;
+import org.polytech.ryuk.sudoku.solver.RandomSolver;
+import org.polytech.ryuk.sudoku.solver.Solver;
 
 public class SudokuFactory {
 
@@ -145,7 +145,7 @@ public class SudokuFactory {
 			cellsThatCanBeEmptied.remove(cellToEmpty);
 		}
 
-		return newDokuFromFilledOne(doku, --nbCellsToEmpty, solver);
+		return false;
 	}
 
 	/**
@@ -181,21 +181,22 @@ public class SudokuFactory {
 	 * @param sudoku2 Sudoku, second sudoku à connecter.
 	 * @param offset  Coordinate, décalage entre les deux Sudokus.
 	 */
-	private static void linkSquareSudokus(Sudoku sudoku1, Sudoku sudoku2, Coordinate offset) {
+	private static void linkRectangleSudokus(Sudoku sudoku1, Sudoku sudoku2, Coordinate offset) {
 		int blockWidth = sudoku1.getBlockWidth();
-		for (int dx = 0; dx < blockWidth; dx++) {
+		int blockHeight = sudoku1.getSize() / blockWidth;
+		for (int dx = 0; dx < blockHeight; dx++) {
 			for (int dy = 0; dy < blockWidth; dy++) {
 				int block1X = dx + offset.getX();
 				int block1Y = dy + offset.getY();
 				int block2X = dx;
 				int block2Y = dy;
 
-				if ((block1X < blockWidth) && (block1X >= 0) && (block1Y >= 0) && (block1Y < blockWidth)) {
-					Block block1 = sudoku1.getBlocks().get(block1Y * blockWidth + block1X);
-					Block block2 = sudoku2.getBlocks().get(block2Y * blockWidth + block2X);
+				if ((block1X < blockHeight) && (block1X >= 0) && (block1Y >= 0) && (block1Y < blockWidth)) {
+					Block block1 = sudoku1.getBlocks().get(block1Y * blockHeight + block1X);
+					Block block2 = sudoku2.getBlocks().get(block2Y * blockHeight + block2X);
 
 					// on remplace le bloc
-					sudoku2.getBlocks().set(block2Y * blockWidth + block2X, block1);
+					sudoku2.getBlocks().set(block2Y * blockHeight + block2X, block1);
 					block1.getSudokus().add(sudoku2);
 
 					// on remplace les cellules
@@ -231,10 +232,10 @@ public class SudokuFactory {
 		Sudoku sudoku4 = createSquareSudoku(size, constraints);
 		Sudoku sudoku5 = createSquareSudoku(size, constraints);
 
-		linkSquareSudokus(sudoku1, sudoku2, new Coordinate(1 - size, 1 - size));
-		linkSquareSudokus(sudoku1, sudoku3, new Coordinate(size - 1, 1 - size));
-		linkSquareSudokus(sudoku1, sudoku4, new Coordinate(1 - size, size - 1));
-		linkSquareSudokus(sudoku1, sudoku5, new Coordinate(size - 1, size - 1));
+		linkRectangleSudokus(sudoku1, sudoku2, new Coordinate(1 - size, 1 - size));
+		linkRectangleSudokus(sudoku1, sudoku3, new Coordinate(size - 1, 1 - size));
+		linkRectangleSudokus(sudoku1, sudoku4, new Coordinate(1 - size, size - 1));
+		linkRectangleSudokus(sudoku1, sudoku5, new Coordinate(size - 1, size - 1));
 
 		return new MultiDoku(Arrays.asList(sudoku1, sudoku2, sudoku3, sudoku4, sudoku5));
 	}
@@ -263,10 +264,10 @@ public class SudokuFactory {
 		Sudoku sudoku4 = createRectangleSudoku(width, height, constraints);
 		Sudoku sudoku5 = createRectangleSudoku(width, height, constraints);
 
-		linkSquareSudokus(sudoku1, sudoku2, new Coordinate(1 - width, 1 - height));
-		linkSquareSudokus(sudoku1, sudoku3, new Coordinate(width - 1, 1 - height));
-		linkSquareSudokus(sudoku1, sudoku4, new Coordinate(1 - width, height - 1));
-		linkSquareSudokus(sudoku1, sudoku5, new Coordinate(width - 1, height - 1));
+		linkRectangleSudokus(sudoku1, sudoku2, new Coordinate(1 - height, 1 - width));
+		linkRectangleSudokus(sudoku1, sudoku3, new Coordinate(height - 1, 1 - width));
+		linkRectangleSudokus(sudoku1, sudoku4, new Coordinate(1 - height, width - 1));
+		linkRectangleSudokus(sudoku1, sudoku5, new Coordinate(height - 1, width - 1));
 
 		return new MultiDoku(Arrays.asList(sudoku1, sudoku2, sudoku3, sudoku4, sudoku5));
 	}
@@ -276,9 +277,6 @@ public class SudokuFactory {
 		solver.solve(doku);
 		int nbCellsToEmpty = (int) (difficulty.getFactor() * doku.getNbCells());
 		boolean successfull = newDokuFromFilledOne(doku, nbCellsToEmpty, solver);
-		if (!successfull) {
-			throw new Exception("Canno't create this doku with this difficulty");
-		}
 		doku.setFilledCellsImmutable();
 	}
 

app/src/main/java/sudoku/io/SudokuFile.java

@@ -1,7 +0,0 @@
-package sudoku.io;
-
-public class SudokuFile {
-
-	
-
-}

app/src/test/java/sudoku/AppTest.java

@@ -1,14 +0,0 @@
-/*
- * This Java source file was generated by the Gradle 'init' task.
- */
-package sudoku;
-
-import org.junit.jupiter.api.Test;
-import static org.junit.jupiter.api.Assertions.*;
-
-class AppTest {
-    @Test void appHasAGreeting() {
-        Main classUnderTest = new Main();
-        assertNotNull(classUnderTest.getGreeting(), "app should have a greeting");
-    }
-}

app/src/test/java/sudoku/SudokuSerializerTest.java

@@ -8,11 +8,10 @@ import java.util.Random;
 
 import org.json.JSONObject;
 import org.junit.jupiter.api.Test;
-
-import sudoku.io.SudokuSerializer;
-import sudoku.solver.RandomSolver;
-import sudoku.structure.MultiDoku;
-import sudoku.structure.SudokuFactory;
+import org.polytech.ryuk.sudoku.io.SudokuSerializer;
+import org.polytech.ryuk.sudoku.solver.RandomSolver;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
+import org.polytech.ryuk.sudoku.structure.SudokuFactory;
 
 public class SudokuSerializerTest {
 

app/src/test/java/sudoku/solver/SolverTest.java

@@ -1,18 +1,19 @@
 package sudoku.solver;
 
-import org.junit.jupiter.api.Test;
-import sudoku.io.SudokuPrinter;
-import sudoku.io.SudokuSerializer;
-import sudoku.structure.Cell;
-import sudoku.structure.MultiDoku;
-import sudoku.structure.Sudoku;
-import sudoku.structure.SudokuFactory;
-
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.util.List;
 import java.util.Random;
 
+import org.junit.jupiter.api.Test;
+import org.polytech.ryuk.sudoku.io.SudokuPrinter;
+import org.polytech.ryuk.sudoku.io.SudokuSerializer;
+import org.polytech.ryuk.sudoku.solver.RandomSolver;
+import org.polytech.ryuk.sudoku.structure.Cell;
+import org.polytech.ryuk.sudoku.structure.MultiDoku;
+import org.polytech.ryuk.sudoku.structure.Sudoku;
+import org.polytech.ryuk.sudoku.structure.SudokuFactory;
+
 class SolverTest {
 
 	@Test