NumbersPuzle, MainActivity.java, 02.10.2021

package com.example.mynumberspuzzle;

import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {
    Puzzle myPuzzle;
    TextView tvMovesCount;
    Button[][] btnsBoard;

    int rows;
    int cols;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);


        Intent intent = getIntent();
        rows = intent.getIntExtra("ROWS_COUNT", 4);
        cols = intent.getIntExtra("COLS_COUNT", 4);

        // Todo make code for general size
        myPuzzle = new Puzzle(rows, cols);
        btnsBoard = new Button[myPuzzle.getRows()][myPuzzle.getCols()];

        tvMovesCount = findViewById(R.id.tvMovesCount);
        for (int r = 0; r < myPuzzle.getRows(); r++) {
            for (int c = 0; c < myPuzzle.getCols(); c++) {
                int id = getResources().getIdentifier("button" + r + c, "id", getPackageName());
                Log.d("debug-id", id + "");
                btnsBoard[r][c] = findViewById(id);
            }
        }

        restart();
    }

    private void restart() {
        myPuzzle.restart();

        // display puzzle on screen
        tvMovesCount.setText(myPuzzle.getMovesCount() + "");
        for (int r = 0; r < myPuzzle.getRows(); r++) {
            for (int c = 0; c < myPuzzle.getCols(); c++) {
                btnsBoard[r][c].setText("" + myPuzzle.getBoard()[r][c]);
                btnsBoard[r][c].setVisibility(View.VISIBLE);
            }
        }

        btnsBoard[myPuzzle.getBlankRow()][myPuzzle.getBlankCol()].setVisibility(View.INVISIBLE);
    }

    public void handleClick(View view) {
        int clickedId = view.getId();
        int clickedRow = 0, clickedCol = 0;

        for (int r = 0; r < myPuzzle.getRows(); r++) {
            for (int c = 0; c < myPuzzle.getCols(); c++) {
                if (clickedId == btnsBoard[r][c].getId()) {
                    clickedRow = r;
                    clickedCol = c;
                }
            }
        }

        if (myPuzzle.move(clickedRow, clickedCol)) {
            for (int r = 0; r < myPuzzle.getRows(); r++) {
                for (int c = 0; c < myPuzzle.getCols(); c++) {
                    btnsBoard[r][c].setText("" + myPuzzle.getBoard()[r][c]);
                    btnsBoard[r][c].setVisibility(View.VISIBLE);
                }
            }

            btnsBoard[myPuzzle.getBlankRow()][myPuzzle.getBlankCol()].setVisibility(View.INVISIBLE);
            btnsBoard[myPuzzle.getBlankRow()][myPuzzle.getBlankCol()].setVisibility(View.INVISIBLE);

            tvMovesCount.setText(myPuzzle.getMovesCount() + "");
        }

        if (myPuzzle.isGameOver()) {
            Toast.makeText(this, "You win", Toast.LENGTH_LONG).show();
        }
        if (myPuzzle.getMovesCount() == 0) {
            restart();
        }
    }
}