board_utils.dart

import '../entities/cell.dart';
import '../provider/data.dart';

class BoardUtils {

  static printGrid(List cells) {
    final String IS_MINED = 'X';
    final String IS_SAFE = '.';

    final String MINE_FOUND = '#';
    final String WRONG_MARKED_CELL = '0';
    final String EXPLORED_SAFE_CELL = '.';
    final String UNKNOWN_STATE = ' ';

    print('');
    String line = '--';
    for (var i = 0; i < cells[0].length; i++) {
      line += '-';
    }
    print(line + '  ' + line);
    for (var rowIndex = 0; rowIndex < cells.length; rowIndex++) {
      String currentLine = '';
      String solvedLine = '';
      for (var colIndex = 0; colIndex < cells[rowIndex].length; colIndex++) {
        solvedLine += cells[rowIndex][colIndex].isMined ? IS_MINED : IS_SAFE;

        String cellString = UNKNOWN_STATE;
        if (cells[rowIndex][colIndex].isExplored) {
          cellString = EXPLORED_SAFE_CELL;
        }
        if (cells[rowIndex][colIndex].isMarked) {
          if (cells[rowIndex][colIndex].isMined) {
            cellString = MINE_FOUND;
          } else {
            cellString = WRONG_MARKED_CELL;
          }
        }
        currentLine += cellString;
      }
      print('|' + currentLine + '|  |' + solvedLine + '|');
    }
    print(line + '  ' + line);
    print('');
  }

  static List createEmptyBoard(int sizeHorizontal, int sizeVertical) {
    int index = 0;
    List cells = [];
    for (var rowIndex = 0; rowIndex < sizeVertical; rowIndex++) {
      List row = [];
      for (var colIndex = 0; colIndex < sizeHorizontal; colIndex++) {
        row.add(Cell(false));
      }
      cells.add(row);
    }

    return cells;
  }

  static int getMinesCount(int sizeHorizontal, int sizeVertical, String level) {
    int minesCountRatio = 0;
    switch(level) {
      case 'easy': {
        minesCountRatio = 5;
      }
      break;
      case 'medium': {
        minesCountRatio = 10;
      }
      break;