import java.util.Arrays;
import java.util.Scanner;

public class SeaBattle2 {
    private static final int FIELD_SIZE = 15;
    private static final int SHIP_SIZE = 3;
    private static final int SHIPS_QUANTITY = 3;
    private static char[] gameField = new char[FIELD_SIZE];
    private static int[] shipsOnField = new int[FIELD_SIZE];
    private static int shipFieldsCount = SHIP_SIZE * SHIPS_QUANTITY;
    private static Scanner scanner = new Scanner(System.in);

    public static void main(String[] args) {
        startGame();
    }

    private static void startGame() {
        initialize();
        System.out.println("Игра Морской бой");
        do {
            showGameField();
            int index;
            while (true) {
                System.out.printf("Задайте ячейку от 0 до %d:%n", FIELD_SIZE - 1);
                if (scanner.hasNextInt()) {
                    index = scanner.nextInt();
                    scanner.nextLine();
                    break;
                } else {
                    scanner.nextLine();
                }
            }
            if (index < 0 || index > FIELD_SIZE - 1) {
                continue;
            }
            switch (gameField[index]) {
                case 'X':
                    gameField[index] = '#';
                    shipFieldsCount--;
                    if (isKilled(index)) {
                        System.out.println("Убит!");
                    } else {
                        System.out.println("Ранен!");
                    }
                    break;
                case '*':
                case '#':
                    System.out.println("Уже стреляли.");
                    break;
                default:
                    System.out.println("Промах.");
                    gameField[index] = '*';
            }
        } while (shipFieldsCount > 0);
        System.out.println("Победа! Все корабли потоплены.");
        System.out.println();
        showGameField();
    }

    private static void initialize() {
        Arrays.fill(gameField, '_');

        int leftBound = 0;
        int rightBound;
        int startIndex;
        int remainingQuantity = SHIPS_QUANTITY;
        while (remainingQuantity > 0) {
            rightBound = FIELD_SIZE - (SHIP_SIZE + 1) * (remainingQuantity - 1) - SHIP_SIZE;
            startIndex = getRandom(leftBound, rightBound + 1);
            for (int i = 0; i < SHIP_SIZE; i++) {
                gameField[startIndex + i] = 'X';
                shipsOnField[startIndex + i] = remainingQuantity;
            }
            leftBound = startIndex + SHIP_SIZE + 1;
            remainingQuantity--;
        }
    }

    private static void showGameField() {
        System.out.println(Arrays.toString(gameField));
        System.out.println();
    }

    private static int getRandom(int from, int to) {
        return (int) (from + Math.random() * (to - from));
    }

    private static boolean isKilled(int index) {
        int shipIndex = shipsOnField[index];
        shipsOnField[index] = -1;
        for (int value : shipsOnField) {
            if (value == shipIndex) {
                return false;
            }
        }
        return true;
    }
}