Feat: Ajout confirmation restart et sauvegarde/chargement état

- Ajout dialog_restart_confirm.xml et dialog_background.xml pour la confirmation.
- Mise à jour strings.xml avec les textes de la boîte de dialogue.
- Modification de MainActivity:
  - Implémentation de showRestartConfirmationDialog.
  - Ajout logique SharedPreferences pour saveGame() dans onPause() et loadGame() dans onCreate().
- Modification de Game:
  - Ajout constructeur Game(board, score, highScore).
  - Ajout setter setHighScore(int).
  - Implémentation de serialize() et static deserialize() pour l'état du jeu.
  - updateHighScore() appelle maintenant saveHighScore() (stub).

app/src/main/java/legion/muyue/best2048/Game.java

@@ -1,23 +1,29 @@
 package legion.muyue.best2048;
 
 import java.util.ArrayList;
-import java.util.List; // Import explicite
+import java.util.List;
 import java.util.Random;
 import android.util.Log;
 
-
 public class Game {
 
     private int[][] gameBoard;
     private Random random;
     private int score = 0;
-    private int highScore = 0; // Ajout variable high score
+    private int highScore = 0;
 
 
     public Game() {
         gameBoard = new int[4][4];
         random = new Random();
-        loadHighScore(); // Charger au démarrage
+        loadHighScore();
+    }
+    // Nouveau constructeur pour désérialisation
+    public Game(int[][] board, int score, int highScore) {
+        gameBoard = board;
+        this.score = score;
+        this.highScore = highScore;
+        random = new Random(); // Toujours initialiser
     }
 
     public int getGameBoard(int x, int y) {
@@ -32,20 +38,23 @@ public class Game {
         return highScore;
     }
 
-    // Charger le meilleur score (stub)
-    private void loadHighScore() {
-        //  highScore = sharedPreferences.getInt("high_score", 0);
+    // Ajout Setter highScore
+    public void setHighScore(int highScore) {
+        this.highScore = highScore;
     }
 
-    // Sauvegarder le meilleur score (stub)
-    private void saveHighScore() {
+    public void loadHighScore() {
+        //  highScore = sharedPreferences.getInt("high_score", 0); // Stub
+    }
+
+    public void saveHighScore() {
         /* SharedPreferences.Editor editor = sharedPreferences.edit();
             editor.putInt("high_score", highScore);
-            editor.apply(); // ou editor.commit()*/
+            editor.apply(); */ // Stub
     }
 
     public void addNewNumbers() {
-        List<int[]> emptySpaces = new ArrayList<>(); // Utilisation de List
+        List<int[]> emptySpaces = new ArrayList<>();
 
         for (int x = 0; x < 4; x++) {
             for (int y = 0; y < 4; y++) {
@@ -63,7 +72,6 @@ public class Game {
             int newNumber;
             int randomNumber = random.nextInt(100);
 
-            // Switch comme dans le snippet (même si if/else if était correct aussi)
             if (randomNumber < 85) {
                 newNumber = 2;
             } else if (randomNumber < 95) {
@@ -76,43 +84,19 @@ public class Game {
         }
     }
 
-    // Les méthodes pushX appellent updateHighScore maintenant
-
     public void pushUp() {
         Log.d("Game", "Pushing Up");
         boolean[] alreadyCombined = new boolean[4];
-
         for (int y = 0; y < 4; y++) {
             alreadyCombined = new boolean[4];
             for (int x = 1; x < 4; x++) {
                 if (gameBoard[x][y] != 0) {
-                    int value = gameBoard[x][y];
-                    int currentX = x;
-
-                    while (currentX > 0 && gameBoard[currentX - 1][y] == 0) {
-                        currentX--;
-                    }
-
-                    if (currentX == 0) {
-                        gameBoard[0][y] = value;
-                        if (currentX != x)
-                            gameBoard[x][y] = 0;
-                    } else if (gameBoard[currentX - 1][y] != value) {
-                        gameBoard[currentX][y] = value;
-                        if (currentX != x)
-                            gameBoard[x][y] = 0;
-                    } else if (!alreadyCombined[currentX - 1]) {
-                        gameBoard[currentX - 1][y] *= 2;
-                        score += gameBoard[currentX - 1][y];
-                        gameBoard[x][y] = 0;
-                        alreadyCombined[currentX - 1] = true;
-                        updateHighScore(); // Appel après fusion
-                    } else {
-                        gameBoard[currentX][y] = value;
-                        if (currentX != x) {
-                            gameBoard[x][y] = 0;
-                        }
-                    }
+                    int value = gameBoard[x][y]; int currentX = x;
+                    while (currentX > 0 && gameBoard[currentX - 1][y] == 0) { currentX--; }
+                    if (currentX == 0) { gameBoard[0][y] = value; if (currentX != x) gameBoard[x][y] = 0; }
+                    else if (gameBoard[currentX - 1][y] != value) { gameBoard[currentX][y] = value; if (currentX != x) gameBoard[x][y] = 0; }
+                    else if (!alreadyCombined[currentX - 1]) { gameBoard[currentX - 1][y] *= 2; score += gameBoard[currentX - 1][y]; gameBoard[x][y] = 0; alreadyCombined[currentX - 1] = true; updateHighScore(); }
+                    else { gameBoard[currentX][y] = value; if (currentX != x) gameBoard[x][y] = 0; }
                 }
             }
         }
@@ -121,40 +105,16 @@ public class Game {
     public void pushDown() {
         Log.d("Game", "Pushing Down");
         boolean[] alreadyCombined = new boolean[4];
-
         for (int y = 0; y < 4; y++) {
             alreadyCombined = new boolean[4];
             for (int x = 2; x >= 0; x--) {
                 if (gameBoard[x][y] != 0) {
-                    int value = gameBoard[x][y];
-                    int currentX = x;
-
-                    while (currentX < 3 && gameBoard[currentX + 1][y] == 0) {
-                        currentX++;
-                    }
-
-                    if (currentX == 3) {
-                        gameBoard[3][y] = value;
-                        if(currentX != x)
-                            gameBoard[x][y] = 0;
-                    } else if (gameBoard[currentX + 1][y] != value) {
-                        gameBoard[currentX][y] = value;
-                        if(currentX != x)
-                            gameBoard[x][y] = 0;
-                    } else if (!alreadyCombined[currentX + 1]) {
-                        gameBoard[currentX + 1][y] *= 2;
-                        score += gameBoard[currentX + 1][y];
-                        gameBoard[x][y] = 0;
-                        alreadyCombined[currentX + 1] = true;
-                        updateHighScore(); // Appel après fusion
-
-                    }
-                    else {
-                        gameBoard[currentX][y] = value;
-                        if (currentX != x) {
-                            gameBoard[x][y] = 0;
-                        }
-                    }
+                    int value = gameBoard[x][y]; int currentX = x;
+                    while (currentX < 3 && gameBoard[currentX + 1][y] == 0) { currentX++; }
+                    if (currentX == 3) { gameBoard[3][y] = value; if(currentX != x) gameBoard[x][y] = 0; }
+                    else if (gameBoard[currentX + 1][y] != value) { gameBoard[currentX][y] = value; if(currentX != x) gameBoard[x][y] = 0; }
+                    else if (!alreadyCombined[currentX + 1]) { gameBoard[currentX + 1][y] *= 2; score += gameBoard[currentX + 1][y]; gameBoard[x][y] = 0; alreadyCombined[currentX + 1] = true; updateHighScore(); }
+                    else { gameBoard[currentX][y] = value; if (currentX != x) gameBoard[x][y] = 0; }
                 }
             }
         }
@@ -163,37 +123,16 @@ public class Game {
     public void pushLeft() {
         Log.d("Game", "Pushing Left");
         boolean[] alreadyCombined = new boolean[4];
-
         for (int x = 0; x < 4; x++) {
             alreadyCombined = new boolean[4];
             for (int y = 1; y < 4; y++) {
                 if (gameBoard[x][y] != 0) {
-                    int value = gameBoard[x][y];
-                    int currentY = y;
-
-                    while (currentY > 0 && gameBoard[x][currentY - 1] == 0) {
-                        currentY--;
-                    }
-
-                    if (currentY == 0) {
-                        gameBoard[x][0] = value;
-                        if(currentY != y)
-                            gameBoard[x][y] = 0;
-                    } else if (gameBoard[x][currentY - 1] != value) {
-                        gameBoard[x][currentY] = value;
-                        if(currentY != y)
-                            gameBoard[x][y] = 0;
-                    } else if (!alreadyCombined[currentY - 1]) {
-                        gameBoard[x][currentY - 1] *= 2;
-                        score += gameBoard[x][currentY - 1];
-                        gameBoard[x][y] = 0;
-                        alreadyCombined[currentY - 1] = true;
-                        updateHighScore(); // Appel après fusion
-                    } else {
-                        gameBoard[x][currentY] = value;
-                        if(currentY != y)
-                            gameBoard[x][y] = 0;
-                    }
+                    int value = gameBoard[x][y]; int currentY = y;
+                    while (currentY > 0 && gameBoard[x][currentY - 1] == 0) { currentY--; }
+                    if (currentY == 0) { gameBoard[x][0] = value; if(currentY != y) gameBoard[x][y] = 0; }
+                    else if (gameBoard[x][currentY - 1] != value) { gameBoard[x][currentY] = value; if(currentY != y) gameBoard[x][y] = 0; }
+                    else if (!alreadyCombined[currentY - 1]) { gameBoard[x][currentY - 1] *= 2; score += gameBoard[x][currentY - 1]; gameBoard[x][y] = 0; alreadyCombined[currentY - 1] = true; updateHighScore(); }
+                    else { gameBoard[x][currentY] = value; if(currentY != y) gameBoard[x][y] = 0; }
                 }
             }
         }
@@ -202,52 +141,58 @@ public class Game {
     public void pushRight() {
         Log.d("Game", "Pushing Right");
         boolean[] alreadyCombined = new boolean[4];
-
         for (int x = 0; x < 4; x++) {
             alreadyCombined = new boolean[4];
             for (int y = 2; y >= 0; y--) {
                 if (gameBoard[x][y] != 0) {
-                    int value = gameBoard[x][y];
-                    int currentY = y;
-
-                    while (currentY < 3 && gameBoard[x][currentY + 1] == 0) {
-                        currentY++;
-                    }
-
-                    if (currentY == 3) {
-                        gameBoard[x][3] = value;
-                        if (currentY != y)
-                            gameBoard[x][y] = 0;
-                    } else if (gameBoard[x][currentY + 1] != value) {
-                        gameBoard[x][currentY] = value;
-                        if(currentY != y)
-                            gameBoard[x][y] = 0;
-                    } else if (!alreadyCombined[currentY + 1]) {
-                        gameBoard[x][currentY + 1] *= 2;
-                        score += gameBoard[x][currentY + 1];
-                        gameBoard[x][y] = 0;
-                        alreadyCombined[currentY + 1] = true;
-                        updateHighScore(); // Appel après fusion
-                    }
-                    else{
-                        gameBoard[x][currentY] = value;
-                        if (currentY != y)
-                            gameBoard[x][y] = 0;
-                    }
+                    int value = gameBoard[x][y]; int currentY = y;
+                    while (currentY < 3 && gameBoard[x][currentY + 1] == 0) { currentY++; }
+                    if (currentY == 3) { gameBoard[x][3] = value; if (currentY != y) gameBoard[x][y] = 0; }
+                    else if (gameBoard[x][currentY + 1] != value) { gameBoard[x][currentY] = value; if(currentY != y) gameBoard[x][y] = 0; }
+                    else if (!alreadyCombined[currentY + 1]) { gameBoard[x][currentY + 1] *= 2; score += gameBoard[x][currentY + 1]; gameBoard[x][y] = 0; alreadyCombined[currentY + 1] = true; updateHighScore(); }
+                    else { gameBoard[x][currentY] = value; if (currentY != y) gameBoard[x][y] = 0; }
                 }
             }
         }
     }
 
-    // Nouvelle méthode pour mettre à jour le high score
     private void updateHighScore() {
         if (score > highScore) {
             highScore = score;
-            saveHighScore(); // Sauvegarder (même si le stub est vide)
+            saveHighScore(); // Appel stub
         }
     }
 
-    // La méthode printArray reste définie comme dans l'extrait précédent
+    // Nouvelle méthode Sérialisation
+    public String serialize() {
+        StringBuilder sb = new StringBuilder();
+        for (int x = 0; x < 4; x++) {
+            for (int y = 0; y < 4; y++) {
+                sb.append(gameBoard[x][y]).append(",");
+            }
+        }
+        sb.append(score).append(",");
+        sb.append(highScore); // Ajout highScore
+        return sb.toString();
+    }
+
+    // Nouvelle méthode Désérialisation
+    public static Game deserialize(String serializedData) {
+        String[] data = serializedData.split(",");
+        int[][] board = new int[4][4];
+        int index = 0;
+        for (int x = 0; x < 4; x++) {
+            for (int y = 0; y < 4; y++) {
+                board[x][y] = Integer.parseInt(data[index++]);
+            }
+        }
+        int score = Integer.parseInt(data[index++]);
+        int highScore = Integer.parseInt(data[index++]); // Lecture highScore
+
+        return new Game(board, score, highScore); // Appel nouveau constructeur
+    }
+
+    // printArray reste défini
     public void printArray() {
         for (int[] row : gameBoard) {
             String rowString = String.format("%6d%6d%6d%6d%n", row[0], row[1], row[2], row[3]);

app/src/main/java/legion/muyue/best2048/MainActivity.java

@@ -1,19 +1,20 @@
 package legion.muyue.best2048;
 
+import android.app.AlertDialog; // Ajout
+import android.content.SharedPreferences; // Ajout
 import android.os.Bundle;
 import android.util.TypedValue;
 import android.view.Gravity;
-import android.view.animation.AnimationUtils; // Ajout pour Animation
+import android.view.LayoutInflater; // Ajout
+import android.view.View; // Ajout
+import android.view.animation.AnimationUtils;
 import android.widget.TextView;
 
 import androidx.activity.EdgeToEdge;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.core.content.ContextCompat;
 import androidx.gridlayout.widget.GridLayout;
-import android.widget.Button; // Ajout pour Button
-import androidx.core.view.WindowCompat;
-import androidx.core.view.WindowInsetsCompat;
-import androidx.core.view.WindowInsetsControllerCompat;
+import android.widget.Button;
 
 
 public class MainActivity extends AppCompatActivity {
@@ -22,10 +23,16 @@ public class MainActivity extends AppCompatActivity {
     private TextView scoreTextView;
     private TextView highScoreTextView;
     private Game game;
+    private SharedPreferences sharedPreferences; // Ajout
+
+    // Constantes SharedPreferences
+    private static final String PREFS_NAME = "MyPrefs";
+    private static final String GAME_STATE_KEY = "gameState";
+    private static final String HIGH_SCORE_KEY = "highScore";
+
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
-
         EdgeToEdge.enable(this);
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
@@ -33,19 +40,19 @@ public class MainActivity extends AppCompatActivity {
         gameBoardLayout = findViewById(R.id.gameBoard);
         scoreTextView = findViewById(R.id.scoreLabel);
         highScoreTextView = findViewById(R.id.highScoreLabel);
-        Button restartButton = findViewById(R.id.restartButton); // Initialisation
-        Button statsButton = findViewById(R.id.statsButton); // Initialisation
-        Button menuButton = findViewById(R.id.menuButton); // Initialisation
-        Button multiplayerButton = findViewById(R.id.multiplayerButton); // Initialisation
+        Button restartButton = findViewById(R.id.restartButton);
+        Button statsButton = findViewById(R.id.statsButton);
+        Button menuButton = findViewById(R.id.menuButton);
+        Button multiplayerButton = findViewById(R.id.multiplayerButton);
 
-        game = new Game();
+        // Initialisation SharedPreferences
+        sharedPreferences = getSharedPreferences(PREFS_NAME, MODE_PRIVATE);
 
         initGameBoardLayout();
 
-        // Initialisation du jeu et de l'UI via restartGame
-        restartGame();
+        // Chargement du jeu (ou création si pas de sauvegarde)
+        loadGame();
 
-        // Ajout des listeners de swipe
         setupSwipeListener();
 
         //Listeners des boutons
@@ -53,9 +60,10 @@ public class MainActivity extends AppCompatActivity {
             v.startAnimation(AnimationUtils.loadAnimation(this, R.anim.button_press));
             showMultiplayerScreen();
         });
-        restartButton.setOnClickListener(v -> restartGame()); // Lambda pour restart
-        statsButton.setOnClickListener(v -> showStats()); // Lambda pour stats
-        menuButton.setOnClickListener(v -> showMenu()); // Lambda pour menu
+        // restartGame appelle maintenant la dialog
+        restartButton.setOnClickListener(v -> restartGame());
+        statsButton.setOnClickListener(v -> showStats());
+        menuButton.setOnClickListener(v -> showMenu());
     }
 
     private void initGameBoardLayout() {
@@ -65,14 +73,13 @@ public class MainActivity extends AppCompatActivity {
     }
 
     private void updateUI() {
-        gameBoardLayout.removeAllViews(); // Efface les tuiles précédentes
+        gameBoardLayout.removeAllViews();
 
         for (int x = 0; x < 4; x++) {
             for (int y = 0; y < 4; y++) {
                 TextView tileTextView = new TextView(this);
                 int value = game.getGameBoard(x, y);
 
-                // Utilisation d'une méthode pour définir l'arrière-plan et le texte
                 setTileAppearance(tileTextView, value);
 
                 GridLayout.LayoutParams params = new GridLayout.LayoutParams();
@@ -80,7 +87,6 @@ public class MainActivity extends AppCompatActivity {
                 params.height = 0;
                 params.rowSpec = GridLayout.spec(x, 1f);
                 params.columnSpec = GridLayout.spec(y, 1f);
-                // Utilisation des dimensions pour les marges
                 params.setMargins(
                         (int) getResources().getDimension(R.dimen.tile_margin),
                         (int) getResources().getDimension(R.dimen.tile_margin),
@@ -92,23 +98,18 @@ public class MainActivity extends AppCompatActivity {
                 gameBoardLayout.addView(tileTextView);
             }
         }
-        // Met à jour les TextViews du score et du high score en utilisant getString
-        scoreTextView.setText(getString(R.string.score, game.getScore()));
-        highScoreTextView.setText(getString(R.string.high_score, game.getHighScore()));
-
+        scoreTextView.setText(getString(R.string.score_placeholder, game.getScore()));
+        highScoreTextView.setText(getString(R.string.high_score_placeholder, game.getHighScore()));
     }
 
-    // Méthode refactorisée pour l'apparence des tuiles
     private void setTileAppearance(TextView tile, int value) {
-        // int drawableId; // N'est plus utilisé directement
         int textColorId;
         int textSizeId;
 
-        // Utilisation d'un switch pour déterminer la couleur de fond, texte et taille.
         switch (value) {
             case 2:
-                tile.setBackgroundResource(R.drawable.tile_background); // Utilise le drawable générique
-                tile.getBackground().setTint(ContextCompat.getColor(this, R.color.tile_2_color)); // Applique la teinte
+                tile.setBackgroundResource(R.drawable.tile_background);
+                tile.getBackground().setTint(ContextCompat.getColor(this, R.color.tile_2_color));
                 textColorId = R.color.text_tile_low;
                 textSizeId = R.dimen.text_size_tile_small;
                 break;
@@ -121,32 +122,32 @@ public class MainActivity extends AppCompatActivity {
             case 8:
                 tile.setBackgroundResource(R.drawable.tile_background);
                 tile.getBackground().setTint(ContextCompat.getColor(this, R.color.tile_8_color));
-                textColorId = R.color.text_tile_low; // Couleur texte change à partir de 8 dans le code final, mais pas dans ce snippet
+                textColorId = R.color.text_tile_low; // Devrait être high
                 textSizeId = R.dimen.text_size_tile_small;
                 break;
             case 16:
                 tile.setBackgroundResource(R.drawable.tile_background);
                 tile.getBackground().setTint(ContextCompat.getColor(this, R.color.tile_16_color));
-                textColorId = R.color.text_tile_low; // Devrait être text_tile_high selon la logique standard 2048
+                textColorId = R.color.text_tile_low; // Devrait être high
                 textSizeId = R.dimen.text_size_tile_small;
                 break;
             case 32:
                 tile.setBackgroundResource(R.drawable.tile_background);
                 tile.getBackground().setTint(ContextCompat.getColor(this, R.color.tile_32_color));
-                textColorId = R.color.text_tile_low; // Devrait être text_tile_high
+                textColorId = R.color.text_tile_low; // Devrait être high
                 textSizeId = R.dimen.text_size_tile_small;
                 break;
             case 64:
                 tile.setBackgroundResource(R.drawable.tile_background);
                 tile.getBackground().setTint(ContextCompat.getColor(this, R.color.tile_64_color));
-                textColorId = R.color.text_tile_low; // Devrait être text_tile_high
+                textColorId = R.color.text_tile_low; // Devrait être high
                 textSizeId = R.dimen.text_size_tile_small;
                 break;
             case 128:
                 tile.setBackgroundResource(R.drawable.tile_background);
                 tile.getBackground().setTint(ContextCompat.getColor(this, R.color.tile_128_color));
-                textColorId = R.color.text_tile_high; // Correct ici
-                textSizeId = R.dimen.text_size_tile_medium; // Taille change
+                textColorId = R.color.text_tile_high;
+                textSizeId = R.dimen.text_size_tile_medium;
                 break;
             case 256:
                 tile.setBackgroundResource(R.drawable.tile_background);
@@ -164,7 +165,7 @@ public class MainActivity extends AppCompatActivity {
                 tile.setBackgroundResource(R.drawable.tile_background);
                 tile.getBackground().setTint(ContextCompat.getColor(this, R.color.tile_1024_color));
                 textColorId = R.color.text_tile_high;
-                textSizeId = R.dimen.text_size_tile_large; // Taille change
+                textSizeId = R.dimen.text_size_tile_large;
                 break;
             case 2048:
                 tile.setBackgroundResource(R.drawable.tile_background);
@@ -172,12 +173,11 @@ public class MainActivity extends AppCompatActivity {
                 textColorId = R.color.text_tile_high;
                 textSizeId = R.dimen.text_size_tile_large;
                 break;
-            default: // Tuile vide ou > 2048
+            default:
                 tile.setBackgroundResource(R.drawable.tile_background);
                 tile.getBackground().setTint(ContextCompat.getColor(this, R.color.tile_empty_color));
-                textColorId = android.R.color.transparent; // Pas de texte
-                textSizeId = R.dimen.text_size_tile_small; // Taille par défaut
-                // Gérer les tuiles > 2048 si nécessaire (non montré dans ce snippet)
+                textColorId = android.R.color.transparent;
+                textSizeId = R.dimen.text_size_tile_small;
                 if (value > 2048) {
                     tile.getBackground().setTint(ContextCompat.getColor(this, R.color.tile_super_color));
                     textColorId = R.color.text_tile_high;
@@ -189,69 +189,69 @@ public class MainActivity extends AppCompatActivity {
         if (value > 0) {
             tile.setText(String.valueOf(value));
             tile.setTextColor(ContextCompat.getColor(this, textColorId));
-            // Utilise la dimension pour la taille du texte
             tile.setTextSize(TypedValue.COMPLEX_UNIT_PX, getResources().getDimension(textSizeId));
         } else {
-            tile.setText(""); // Efface le texte pour les tuiles vides
+            tile.setText("");
         }
         tile.setGravity(Gravity.CENTER);
     }
 
-
     private void setupSwipeListener() {
-        // Utilise l'interface SwipeListener
         gameBoardLayout.setOnTouchListener(new OnSwipeTouchListener(MainActivity.this, new OnSwipeTouchListener.SwipeListener() {
-            @Override
-            public void onSwipeTop() {
-                handleSwipe(Direction.UP);
-            }
-
-            @Override
-            public void onSwipeBottom() {
-                handleSwipe(Direction.DOWN);
-            }
-
-            @Override
-            public void onSwipeLeft() {
-                handleSwipe(Direction.LEFT);
-            }
-
-            @Override
-            public void onSwipeRight() {
-                handleSwipe(Direction.RIGHT);
-            }
+            @Override public void onSwipeTop() { handleSwipe(Direction.UP); }
+            @Override public void onSwipeBottom() { handleSwipe(Direction.DOWN); }
+            @Override public void onSwipeLeft() { handleSwipe(Direction.LEFT); }
+            @Override public void onSwipeRight() { handleSwipe(Direction.RIGHT); }
         }));
     }
 
-    // Méthode pour gérer les swipes via l'enum
     private void handleSwipe(Direction direction) {
         switch (direction) {
-            case UP:
-                game.pushUp();
-                break;
-            case DOWN:
-                game.pushDown();
-                break;
-            case LEFT:
-                game.pushLeft();
-                break;
-            case RIGHT:
-                game.pushRight();
-                break;
+            case UP: game.pushUp(); break;
+            case DOWN: game.pushDown(); break;
+            case LEFT: game.pushLeft(); break;
+            case RIGHT: game.pushRight(); break;
         }
         game.addNewNumbers();
         updateUI();
     }
 
-    // Méthode pour redémarrer le jeu
+    // Modifié pour montrer la dialog
     private void restartGame() {
-        game = new Game(); // Crée une nouvelle instance de Game
-        game.addNewNumbers(); // Ajoute les tuiles initiales
-        game.addNewNumbers();
-        updateUI(); // Met à jour l'interface utilisateur
+        showRestartConfirmationDialog();
     }
 
-    // Stubs pour les autres boutons
+    // Nouvelle méthode pour la dialog
+    private void showRestartConfirmationDialog() {
+        AlertDialog.Builder builder = new AlertDialog.Builder(this);
+        LayoutInflater inflater = getLayoutInflater();
+        View dialogView = inflater.inflate(R.layout.dialog_restart_confirm, null);
+        builder.setView(dialogView);
+
+        // Références vues dialog
+        TextView dialogTitle = dialogView.findViewById(R.id.dialogTitle); // Non utilisé mais présent dans snippet
+        TextView dialogMessage = dialogView.findViewById(R.id.dialogMessage); // Non utilisé mais présent dans snippet
+        Button cancelButton = dialogView.findViewById(R.id.dialogCancelButton);
+        Button confirmButton = dialogView.findViewById(R.id.dialogConfirmButton);
+
+        final AlertDialog dialog = builder.create();
+
+        cancelButton.setOnClickListener(v -> {
+            dialog.dismiss();
+        });
+
+        confirmButton.setOnClickListener(v -> {
+            dialog.dismiss();
+            game = new Game(); // Création nouveau jeu
+            game.addNewNumbers(); // Ajout tuiles initiales
+            game.addNewNumbers();
+            updateUI(); // Mise à jour UI
+        });
+
+        dialog.show();
+    }
+
+
     private void showStats() {
         //A faire
     }
@@ -263,7 +263,44 @@ public class MainActivity extends AppCompatActivity {
         //A faire
     }
 
-    // Enum pour les directions
+    // Ajout onPause
+    @Override
+    protected void onPause() {
+        super.onPause();
+        saveGame(); // Sauvegarde en quittant
+    }
+
+    // Nouvelle méthode sauvegarde
+    private void saveGame() {
+        SharedPreferences.Editor editor = sharedPreferences.edit();
+        editor.putString(GAME_STATE_KEY, game.serialize()); // Sauvegarde état sérialisé
+        editor.putInt(HIGH_SCORE_KEY, game.getHighScore()); // Sauvegarde high score
+        editor.apply(); // Appliquer
+    }
+
+    // Nouvelle méthode chargement
+    private void loadGame() {
+        String gameState = sharedPreferences.getString(GAME_STATE_KEY, null); // Récupère état
+        if (gameState != null) {
+            game = Game.deserialize(gameState); // Restaure si existe
+            // game.loadHighScore(); // Pas dans le snippet loadGame
+        } else {
+            game = new Game(); // Nouveau jeu sinon
+            game.addNewNumbers();
+            game.addNewNumbers();
+        }
+        game.loadHighScore(); // Présent dans le snippet loadGame
+        updateUI(); // MAJ UI
+
+        // Logique high score séparée comme dans snippet
+        int savedHighScore = sharedPreferences.getInt(HIGH_SCORE_KEY, 0);
+        if (savedHighScore > game.getHighScore()) {
+            game.setHighScore(savedHighScore);
+            // updateUI(); // Pas de second updateUI dans le snippet ici
+        }
+
+    }
+
     private enum Direction {
         UP, DOWN, LEFT, RIGHT
     }

app/src/main/res/drawable/dialog_background.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <solid android:color="@color/white"/>
+    <corners android:radius="12dp"/>
+    <stroke android:width="1dp"
+        android:color="@color/game_board_background"/>
+</shape>

app/src/main/res/layout/activity_main.xml

@@ -12,7 +12,7 @@
         android:id="@+id/northPanel"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_marginTop="28dp"
+        android:layout_marginTop="32dp"
         android:baselineAligned="false"
         android:orientation="horizontal"
         android:padding="@dimen/padding_general"
@@ -110,6 +110,7 @@
         layout="@layout/bottom_buttons_layout"
         android:layout_width="0dp"
         android:layout_height="wrap_content"
+        android:layout_marginBottom="32dp"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent" />

app/src/main/res/layout/dialog_restart_confirm.xml

@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:padding="16dp"
+    android:background="@drawable/dialog_background">
+
+    <TextView
+        android:id="@+id/dialogTitle"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:text="@string/restart_confirm_title"
+        android:textSize="20sp"
+        android:textStyle="bold"
+        android:textColor="@color/text_tile_low"
+        android:gravity="center"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent" />
+
+    <TextView
+        android:id="@+id/dialogMessage"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:text="@string/restart_confirm_message"
+        android:textSize="16sp"
+        android:textColor="@color/text_tile_low"
+        android:gravity="center"
+        android:layout_marginTop="8dp"
+        app:layout_constraintTop_toBottomOf="@+id/dialogTitle"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent" />
+
+    <LinearLayout
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:layout_marginTop="16dp"
+        app:layout_constraintTop_toBottomOf="@+id/dialogMessage"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent">
+
+        <Button
+            android:id="@+id/dialogCancelButton"
+            style="@style/ButtonStyle"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:layout_marginEnd="8dp"
+            android:text="@string/cancel" />
+
+        <Button
+            android:id="@+id/dialogConfirmButton"
+            style="@style/ButtonStyle"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:layout_marginStart="8dp"
+            android:text="@string/confirm" />
+
+    </LinearLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/values/strings.xml

@@ -1,10 +1,16 @@
 <resources>
     <string name="app_name">Best 2048</string>
     <string name="name_2048">2048</string>
-    <string name="score">Score :\n0</string>
-    <string name="high_score">High Score :\n0</string>
+    <string name="score">Score :</string>
+    <string name="score_placeholder">Score :\n%d</string>
+    <string name="high_score_placeholder">High Score :\n%d</string>
+    <string name="high_score">High Score :</string>
     <string name="restart">Restart</string>
-    <string name="multiplayer">Multiplayer</string>
     <string name="stats">Stats</string>
     <string name="menu">Menu</string>
+    <string name="multiplayer">Multiplayer</string>
+    <string name="restart_confirm_title">Restart ?</string>
+    <string name="restart_confirm_message">Are you sure you want to restart the game ?</string>
+    <string name="cancel">Cancel</string>
+    <string name="confirm">Confirm</string>
 </resources>