Blind Man's Buff

package Advance.Exams.JavaAdvancedExam.February2023;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class BlindManBuff {
    private static final char PLAYER = 'B';
    private static final char OPPONENTS = 'P';
    private static final char OBSTACLE = 'O';
    private static final char EMPTY_SPOT = '-';
    public static void main(String[] args) throws IOException {
        BufferedReader scanner = new BufferedReader(new InputStreamReader(System.in));

        char[][] field = new char[Integer.parseInt(scanner.readLine().split("\\s")[0])][];
        fillField(field, scanner);
        int[] currentPosition = getCurrentPosition(field);
        int moves = 0;
        int touchedPlayers = 0;

        String command;
        while (touchedPlayers != 3 && !"Finish".equals(command = scanner.readLine())) {

            switch (command) {
                case "up":
                    if (!(currentPosition[0]-1 < 0)) {
                        if (field[currentPosition[0] - 1][currentPosition[1]] == OPPONENTS) {
                            touchedPlayers++;
                            moves++;
                            field[currentPosition[0]][currentPosition[1]] = EMPTY_SPOT;
                            field[currentPosition[0] -1][currentPosition[1]] = PLAYER;
                            currentPosition[0] = currentPosition[0] - 1;

                        } else if (field[currentPosition[0] - 1][currentPosition[1]] == EMPTY_SPOT) {
                            moves++;
                            field[currentPosition[0]][currentPosition[1]] = EMPTY_SPOT;
                            field[currentPosition[0] - 1][currentPosition[1]] = PLAYER;
                            currentPosition[0] = currentPosition[0] - 1;

                        }
                    }

                    break;
                case "down":
                    if (!(currentPosition[0]+1 > field.length - 1)) {
                        if (field[currentPosition[0] + 1][currentPosition[1]] == OPPONENTS) {
                            touchedPlayers++;
                            moves++;
                            field[currentPosition[0]][currentPosition[1]] = EMPTY_SPOT;
                            field[currentPosition[0] + 1][currentPosition[1]] = PLAYER;
                            currentPosition[0] = currentPosition[0] + 1;

                        } else if (field[currentPosition[0] + 1][currentPosition[1]] == EMPTY_SPOT) {
                            moves++;
                            field[currentPosition[0]][currentPosition[1]] = EMPTY_SPOT;
                            field[currentPosition[0] + 1][currentPosition[1]] = PLAYER;
                            currentPosition[0] = currentPosition[0] + 1;
                        }
                    }
                    break;
                case "right":
                    if (!(currentPosition[1]+1 > field[0].length - 1)) {
                        if (field[currentPosition[0]][currentPosition[1] + 1] == OPPONENTS) {
                            touchedPlayers++;
                            moves++;
                            field[currentPosition[0]][currentPosition[1]] = EMPTY_SPOT;
                            field[currentPosition[0]][currentPosition[1] + 1] = PLAYER;
                            currentPosition[1] = currentPosition[1] + 1;

                        } else if (field[currentPosition[0]][currentPosition[1] + 1] == EMPTY_SPOT) {
                            moves++;
                            field[currentPosition[0]][currentPosition[1]] = EMPTY_SPOT;
                            field[currentPosition[0]][currentPosition[1] + 1] = PLAYER;
                            currentPosition[1] = currentPosition[1] + 1;
                        }
                    }
                    break;
                case "left":
                    if (!(currentPosition[1]-1 < 0)) {
                        if (field[currentPosition[0]][currentPosition[1] - 1] == OPPONENTS) {
                            touchedPlayers++;
                            moves++;
                            field[currentPosition[0]][currentPosition[1]] = EMPTY_SPOT;
                            field[currentPosition[0]][currentPosition[1] - 1] = PLAYER;
                            currentPosition[1] = currentPosition[1] - 1;

                        } else if (field[currentPosition[0]][currentPosition[1] - 1] == EMPTY_SPOT) {
                            moves++;
                            field[currentPosition[0]][currentPosition[1]] = EMPTY_SPOT;
                            field[currentPosition[0]][currentPosition[1] - 1] = PLAYER;
                            currentPosition[1] = currentPosition[1] - 1;
                        }
                    }
                    break;
            }

        }

        System.out.println("Game over!");
        System.out.printf("Touched opponents: %d Moves made: %d%n", touchedPlayers, moves);
    }

    private static int[] getCurrentPosition(char[][] field) {
        int row = 0;
        int col = 0;
        for (int rows = 0; rows < field.length; rows++) {
            for (int cols = 0; cols < field[rows].length; cols++) {
                if (field[rows][cols] == PLAYER) {
                    row = rows;
                    col = cols;
                    return new int[] {row, col};
                }
            }
        }
        return new int[] {row, col};
    }

    private static void fillField(char[][] field, BufferedReader scanner) throws IOException {
        for (int i = 0; i < field.length; i++) {
            char[] newOne = scanner.readLine().replaceAll("\\s", "").toCharArray();
            field[i] = newOne;
        }
    }
}