Check if Move is Legal LeetCode solution in C++

1
class Solution {
2
 public:
3
  bool inBoard(vector<vector<char>> &board, int x, int y) {
4
    return x >= 0 && x < board.size() && y >= 0 && y < board[0].size();
5
  }
6

7
  bool isLegal(vector<vector<char>> &board, int x, int y, char color) {
8
    if (color == 'B') return board[x][y] == 'W';
9
    if (color == 'W') return board[x][y] == 'B';
10
    return false;
11
  }
12

13
  bool checkMove(vector<vector<char>> &board, int rMove, int cMove, char color) {
14
    vector<int> dir_x = {0, 0, 1, 1, 1, -1, -1, -1}, dir_y = {1, -1, 1, -1, 0, 1, -1, 0};
15
    for (int i = 0; i < 8; i++) {
16
      int x = rMove + dir_x[i], y = cMove + dir_y[i], count = 0;
17
      while (inBoard(board, x, y) && isLegal(board, x, y, color)) {
18
        x += dir_x[i], y += dir_y[i];
19
        count++;
20
      }
21
      if (inBoard(board, x, y) && board[x][y] == color && count > 0) return true;
22
    }
23
    return false;
24
  }
25
};