напиши как там создаются последовательности которые нужно повторить? распиши все методы которые в этом участвуют только
package com.example.memorymaster;

import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Color;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.widget.Button;
import android.widget.GridLayout;
import android.widget.TextView;
import android.app.AlertDialog;
import android.view.animation.AccelerateDecelerateInterpolator;
import android.animation.ObjectAnimator;
import android.animation.PropertyValuesHolder;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;
import androidx.constraintlayout.widget.ConstraintLayout;

import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;

import nl.dionsegijn.konfetti.KonfettiView;
import nl.dionsegijn.konfetti.models.Shape;
import nl.dionsegijn.konfetti.models.Size;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.Random;
import java.util.Set;
import android.util.Log; // Добавьте импорт для логирования

public class MemoryGame extends AppCompatActivity {

    private GridLayout gridLayout;
    private ArrayList<Button> squares;
    private TextView title;
    private TextView level;
    private TextView scoreText;
    private Button startButton;
    private Button nextLevelButton;
    private ArrayList<Button> correctSeq;
    private int currentLevel;
    private int currentScore;
    private int userIndex;
    private int tileCount;
    private String difficulty;
    private Handler handler;
    private SharedPreferences preferences;
    private String playerUserId; // Используем userId вместо nickname
    private int attemptsLeft = 3;
    private int currentTilePoints = 50;
    private SoundManager soundManager;

    private TextView timerTextView;
    private Handler timerHandler = new Handler();
    private Runnable timerRunnable;
    private long startTime;
    private long endTime;

    private final int COLOR_BACKGROUND = Color.parseColor("#D3D3D3"); // Светло-серый фон
    private final int COLOR_BUTTON_NORMAL = Color.parseColor("#800080"); // Фиолетовый
    private final int COLOR_BUTTON_FLASH = Color.parseColor("#008000"); // Зеленый
    private final int COLOR_BUTTON_CORRECT = Color.parseColor("#0000FF"); // Синий
    private final int COLOR_BUTTON_WRONG = Color.parseColor("#F44336"); // Красный
    private final int COLOR_TEXT = Color.parseColor("#FFA500"); // Светло-оранжевый
    private final int COLOR_TILE_NORMAL = Color.parseColor("#FFFFFF"); // Белый
    private boolean gameStarted = false;
    private KonfettiView konfettiView;

    private FirebaseHelper firebaseHelper;

    private static final String TAG = "MemoryGame";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_memory_game);
        konfettiView = findViewById(R.id.konfettiView);

        soundManager = SoundManager.getInstance(this);
        gridLayout = findViewById(R.id.gridLayout);

        // Инициализация SharedPreferences
        preferences = getSharedPreferences("game_prefs", MODE_PRIVATE);
        // Получаем userId из SharedPreferences или напрямую из FirebaseAuth
        FirebaseUser currentUser = FirebaseAuth.getInstance().getCurrentUser();
        if (currentUser != null) {
            playerUserId = currentUser.getUid();
        } else {
            Intent intent = new Intent(MemoryGame.this, LoginActivity.class);
            startActivity(intent);
            finish();
            return;
        }

        tileCount = getIntent().getIntExtra("tileCount", 9);
        difficulty = getDifficultyLabel(tileCount);

        title = findViewById(R.id.title);
        level = findViewById(R.id.level);
        scoreText = findViewById(R.id.score);
        startButton = findViewById(R.id.startBtn);
        nextLevelButton = findViewById(R.id.nextLevelBtn);
        timerTextView = findViewById(R.id.timerTextView);


        nextLevelButton.setVisibility(View.GONE);

        correctSeq = new ArrayList<>();
        currentLevel = 1;
        currentScore = 0;
        handler = new Handler();

        firebaseHelper = new FirebaseHelper();

        setupUI();
        setupGameGrid();
        updateUI();

        timerRunnable = new Runnable() {
            @Override
            public void run() {
                long millis = System.currentTimeMillis() - startTime;
                int seconds = (int) (millis / 1000);
                int minutes = seconds / 60;
                seconds = seconds % 60;

                timerTextView.setText(String.format("%d:%02d", minutes, seconds));
                timerHandler.postDelayed(this, 500);
            }
        };

        // Установите слушатели с воспроизведением звука
        startButton.setOnClickListener(v -> {
            soundManager.playButtonClickSound();
            startGame();
        });
        nextLevelButton.setOnClickListener(v -> {
            soundManager.playButtonClickSound();
            startGame();
        });
    }

    private void setupUI() {
        title.setTextColor(COLOR_TEXT);
        level.setTextColor(COLOR_TEXT);
        scoreText.setTextColor(COLOR_TEXT);

        startButton.setBackgroundColor(COLOR_BUTTON_NORMAL);
        startButton.setTextColor(COLOR_TEXT);

        nextLevelButton.setBackgroundColor(COLOR_BUTTON_NORMAL);
        nextLevelButton.setTextColor(COLOR_TEXT);
    }

    private String getDifficultyLabel(int tileCount) {
        switch (tileCount) {
            case 4:
                return "easy";
            case 9:
                return "medium";
            case 12:
                return "hard";
            default:
                return "medium";
        }
    }

    private void setupGameGrid() {
        squares = new ArrayList<>();
        gridLayout.removeAllViews();

        int columnCount = (int) Math.sqrt(tileCount);
        gridLayout.setColumnCount(columnCount);

        int screenWidth = getResources().getDisplayMetrics().widthPixels;
        int screenHeight = getResources().getDisplayMetrics().heightPixels;

        int availableWidth = screenWidth - 40;
        int availableHeight = screenHeight - 300;

        int tileSize = Math.min(availableWidth / columnCount, availableHeight / columnCount) - 10;

        for (int i = 0; i < tileCount; i++) {
            Button button = new Button(this);
            button.setId(View.generateViewId());

            GridLayout.LayoutParams params = new GridLayout.LayoutParams();
            params.width = tileSize;
            params.height = tileSize;
            params.setMargins(5, 5, 5, 5);
            button.setLayoutParams(params);

            button.setBackgroundColor(COLOR_TILE_NORMAL);
            button.setTextColor(COLOR_TEXT);
            button.setTextSize(20);

            button.setOnClickListener(this::checkSequence);
            squares.add(button);
            gridLayout.addView(button);
        }
    }

    private void resetTileColors() {
        for (Button button : squares) {
            button.setBackgroundColor(COLOR_TILE_NORMAL);
            button.setText("");
        }
    }

    private void startGame() {
        gameStarted = true;
        isCheckingSequence = false;
        if (currentLevel == 1) {
            startTime = System.currentTimeMillis();
        }
        timerHandler.postDelayed(timerRunnable, 0);
        nextLevelButton.setVisibility(View.GONE);

        int maxLevel = 4;
        if (currentLevel > maxLevel) {
            showVictoryMessage();
            return;
        }

        correctSeq.clear();
        userIndex = 0;
        currentTilePoints = 50;
        title.setText("Запоминай последовательность!");
        level.setText("Уровень " + currentLevel + " | Попыток: " + attemptsLeft);
        disableSquares();
        startButton.setVisibility(View.INVISIBLE);

        resetTileColors();
        showPattern();
    }

    private void showPattern() {
        disableSquares();
        int delay = preferences.getInt("sequence_speed", 700); // Теперь preferences гарантированно инициализирован

        Set<String> unlockedDifficulties = new HashSet<>(preferences.getStringSet("unlocked_difficulties", new HashSet<>(Collections.singletonList("easy"))));
        for (int i = 0; i < currentLevel; i++) {
            int finalI = i;
            handler.postDelayed(() -> {
                Random random = new Random();
                int randomIndex = random.nextInt(squares.size());
                Button randomSq = squares.get(randomIndex);
                flashButton(randomSq, false);
                correctSeq.add(randomSq);

                if (finalI == currentLevel - 1) {
                    handler.postDelayed(this::playerTurn, 700);
                }
            }, delay);
            delay += preferences.getInt("sequence_speed", 700);
        }
    }

    private void flashButton(Button button, boolean isPlayerTurn) {
        int color = isPlayerTurn ? COLOR_BUTTON_CORRECT : COLOR_BUTTON_FLASH;
        animateButton(button, color, "");
        soundManager.playButtonClickSound();
    }

    private void playerTurn() {
        enableSquares();
        title.setText("Повтори последовательность");
    }

    private boolean isCheckingSequence = false;
    private void checkSequence(View view) {
        if (!gameStarted || isCheckingSequence) {
            return;
        }

        soundManager.playButtonClickSound();
        isCheckingSequence = true;
        Button clickedButton = (Button) view;

        if (clickedButton == correctSeq.get(userIndex)) {
            soundManager.playCorrectSound();
            animateButton(clickedButton, COLOR_BUTTON_CORRECT, "✔");

            userIndex++;
            level.setText(userIndex + "/" + currentLevel);

            currentScore += currentTilePoints;
            currentTilePoints += 25;

            updateUI();

            if (userIndex == currentLevel) {
                currentLevel++;
                soundManager.playLevelUpSound();
                handler.postDelayed(this::startNextLevel, 1000);
            } else {
                handler.postDelayed(() -> {
                    isCheckingSequence = false;
                    enableSquares();
                }, 500);
            }
        } else {
            soundManager.playWrongSound();
            animateButton(clickedButton, COLOR_BUTTON_WRONG, "✖");

            int penaltyPoints = 50; // Штрафные очки за ошибку
            currentScore = Math.max(0, currentScore - penaltyPoints); // Уменьшаем очки, но не ниже нуля
            updateUI();

            attemptsLeft--;
            if (attemptsLeft > 0) {
                handler.postDelayed(this::resetLevel, 1000);
            } else {
                handler.postDelayed(this::gameOver, 1000);
            }
        }
    }

    @Override
    protected void onResume() {
        super.onResume();
        FirebaseUser currentUser = FirebaseAuth.getInstance().getCurrentUser();

        // Если пользователь не вошёл, переходим к экрану входа
        if (currentUser == null) {
            Intent intent = new Intent(MemoryGame.this, LoginActivity.class);
            startActivity(intent);
            finish();  // Закрываем MemoryGame, чтобы предотвратить возврат
        } else {
            // Дополнительная логика, если необходимо
            Log.d(TAG, "Пользователь вошёл: " + currentUser.getUid());
        }
    }

    @Override
    protected void onPause() {
        super.onPause();
        if (soundManager != null) {
            soundManager.pauseBackgroundMusic();
        }
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        if (soundManager != null) {
            soundManager.release();
        }
    }

    private void startNextLevel() {
        title.setText("Уровень пройден! Готовы к следующему?");
        nextLevelButton.setVisibility(View.VISIBLE);
        disableSquares();
        isCheckingSequence = false;
    }

    private void resetLevel() {
        title.setText("Новая последовательность! Попыток: " + attemptsLeft);
        disableSquares();
        isCheckingSequence = false;
        handler.postDelayed(this::startGame, 1000);
    }

    private void gameOver() {
        gameStarted = false;
        isCheckingSequence = false;
        timerHandler.removeCallbacks(timerRunnable);
        title.setText("Игра окончена!");

        endTime = System.currentTimeMillis();
        long totalTime = (endTime - startTime) / 1000;

        disableSquares();
        startButton.setVisibility(View.VISIBLE);

        showDefeatDialog();
    }

    private void showDefeatDialog() {
        AlertDialog.Builder builder = new AlertDialog.Builder(this, R.style.AlertDialogCustom);
        builder.setTitle("Игра окончена!")
                .setMessage("Вы исчерпали все попытки. Хотите попробовать снова или вернуться в главное меню?")
                .setPositiveButton("Попробовать снова", (dialog, which) -> {
                    currentLevel = 1;
                    currentScore = 0;
                    currentTilePoints = 50;
                    attemptsLeft = 3;
                    startGame();
                })
                .setNegativeButton("Главное меню", (dialog, which) -> {
                    Intent intent = new Intent(MemoryGame.this, MainActivity.class);
                    startActivity(intent);
                    finish();
                })
                .setCancelable(false)
                .show();
    }

    private void showVictoryMessage() {
        endTime = System.currentTimeMillis();
        long totalTime = (endTime - startTime) / 1000;

        // Разблокировка следующей сложности
        unlockNextDifficulty();

        // Логирование перед обновлением статистики
        Log.d(TAG, "Обновление статистики игры: userId=" + playerUserId + ", difficulty=" + difficulty + ", score=" + currentScore + ", time=" + totalTime);

        firebaseHelper.updateMemoryGameStats(playerUserId, difficulty, currentScore, totalTime, new FirebaseHelper.UpdateStatsCallback() {
            @Override
            public void onUpdateCompleted(boolean isNewRecord) {
                if (isNewRecord) {
                    soundManager.playNewRecordSound();
                    showConfetti();
                } else {
                    soundManager.playVictorySound();
                }

                AlertDialog.Builder builder = new AlertDialog.Builder(MemoryGame.this, R.style.AlertDialogCustom);
                String message = isNewRecord ?
                        "Поздравляем! Вы установили новый рекорд!\n" :
                        "Вы успешно прошли игру!\n";

                builder.setTitle("Поздравляем!")
                        .setMessage(message)
                        .setPositiveButton("Назад в главное меню", (dialog, which) -> {
                            Intent intent = new Intent(MemoryGame.this, MainActivity.class);
                            startActivity(intent);
                            finish();
                        })
                        .setNegativeButton("Выбрать сложность", (dialog, which) -> {
                            Intent intent = new Intent(MemoryGame.this, DifficultySelectionActivity.class);
                            startActivity(intent);
                            finish();
                        })
                        .setCancelable(false)
                        .show();
            }

            @Override
            public void onUpdateFailed(Exception e) {
                Toast.makeText(MemoryGame.this, "Ошибка обновления статистики: " + e.getMessage(), Toast.LENGTH_LONG).show();
                Log.e(TAG, "Ошибка обновления статистики", e);
            }
        });
    }

    private void unlockNextDifficulty() {
        SharedPreferences preferences = getSharedPreferences("game_prefs", MODE_PRIVATE);
        Set<String> unlockedDifficulties = new HashSet<>(preferences.getStringSet("unlocked_difficulties", new HashSet<>(Collections.singletonList("easy"))));
        boolean updated = false;

        if ("easy".equals(difficulty) && !unlockedDifficulties.contains("medium")) {
            unlockedDifficulties.add("medium");
            updated = true;
        } else if ("medium".equals(difficulty) && !unlockedDifficulties.contains("hard")) {
            unlockedDifficulties.add("hard");
            updated = true;
        }

        if (updated) {
            SharedPreferences.Editor editor = preferences.edit();
            editor.putStringSet("unlocked_difficulties", unlockedDifficulties);
            editor.apply();
            Log.d(TAG, "Новая сложность разблокирована: " + difficulty + " -> " + unlockedDifficulties.toString());
        }
    }

    private void updateUI() {
        scoreText.setText("Очки: " + currentScore);
        level.setText("Уровень: " + currentLevel + " | Попыток: " + attemptsLeft);
    }

    private void enableSquares() {
        for (Button square : squares) {
            square.setClickable(true);
        }
    }

    private void disableSquares() {
        for (Button square : squares) {
            square.setClickable(false);
        }
    }

    private void animateButton(final Button button, int color, String text) {
        button.setBackgroundColor(color);
        button.setText(text);

        PropertyValuesHolder scaleX = PropertyValuesHolder.ofFloat(View.SCALE_X, 1f, 1.2f, 1f);
        PropertyValuesHolder scaleY = PropertyValuesHolder.ofFloat(View.SCALE_Y, 1f, 1.2f, 1f);
        ObjectAnimator scaleAnimator = ObjectAnimator.ofPropertyValuesHolder(button, scaleX, scaleY);
        scaleAnimator.setDuration(300);
        scaleAnimator.setInterpolator(new AccelerateDecelerateInterpolator());

        scaleAnimator.start();

        handler.postDelayed(() -> {
            button.setBackgroundColor(COLOR_TILE_NORMAL);
            button.setText("");
        }, 500);
    }

    private void showConfetti() {
        konfettiView.build()
                .addColors(Color.YELLOW, Color.GREEN, Color.MAGENTA)
                .setDirection(0.0, 359.0)
                .setSpeed(1f, 5f)
                .setFadeOutEnabled(true)
                .setTimeToLive(2000L)
                .addShapes(Shape.Square.INSTANCE, Shape.Circle.INSTANCE)
                .addSizes(new Size(12, 5f))
                .setPosition(-50f, konfettiView.getWidth() + 50f, -50f, -50f)
                .streamFor(300, 5000L);
    }
}