ManOWar_with_List/MidExamRetake6August2019

package PastMidExams.MidExamRetake6August2019;

        import java.util.Arrays;
        import java.util.List;
        import java.util.Scanner;
        import java.util.stream.Collectors;

public class ManOWarList {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        List<Integer> pirateShipStatus = Arrays.stream(scanner.nextLine().split(">")).map(Integer::parseInt).collect(Collectors.toList());
        List<Integer> warShipStatus = Arrays.stream(scanner.nextLine().split(">")).map(Integer::parseInt).collect(Collectors.toList());

        int maxHealth = Integer.parseInt(scanner.nextLine());

        String command = scanner.nextLine();

        while(!command.equals("Retire")) {
            String[] tokens = command.split(" ");

            int damagePoints = 0;

            switch (tokens[0]) {
                case "Fire":
                    int indexToDamage = Integer.parseInt(tokens[1]);
                    damagePoints = Integer.parseInt(tokens[2]);

                    if (indexToDamage >= 0 && indexToDamage < warShipStatus.size()) {
                        warShipStatus.set(indexToDamage, (warShipStatus.get(indexToDamage) - damagePoints));
                        if (warShipStatus.get(indexToDamage) <= 0) {
                            System.out.println("You won! The enemy ship has sunken.");
                            return;
                        }

                    }
                    break;
                case "Defend":
                    int startIndex = Integer.parseInt(tokens[1]);
                    int endIndex = Integer.parseInt(tokens[2]);
                    damagePoints = Integer.parseInt(tokens[3]);

                    if (startIndex >= 0 && startIndex <= endIndex && endIndex < pirateShipStatus.size()) {
                        for (int i = startIndex; i <= endIndex; i++) {
                            pirateShipStatus.set(i, (pirateShipStatus.get(i) - damagePoints));
                            if (pirateShipStatus.get(i) <= 0) {
                                System.out.println("You lost! The pirate ship has sunken.");
                                return;
                            }
                        }
                    }
                    break;
                case "Repair":
                    int indexToRepair = Integer.parseInt(tokens[1]);
                    int health = Integer.parseInt(tokens[2]);

                    if (indexToRepair >= 0 && indexToRepair < pirateShipStatus.size()) {
                        pirateShipStatus.set(indexToRepair, (pirateShipStatus.get(indexToRepair) + health));

                        if (pirateShipStatus.get(indexToRepair) > maxHealth) {
                            pirateShipStatus.set(indexToRepair, maxHealth);
                        }
                    }
                    break;
                case "Status":
                    int sectionsCounter = 0;
                    for (int i = 0; i < pirateShipStatus.size(); i++) {
                        if (pirateShipStatus.get(i) < (0.2 * maxHealth)) {
                            sectionsCounter++;
                        }
                    }
                    System.out.printf("%d sections need repair.%n", sectionsCounter);
                    break;
            }
            command = scanner.nextLine();
        }
        int pirateShipSum = pirateShipStatus.stream().mapToInt(Integer::valueOf).sum();
        int warShipSum = warShipStatus.stream().mapToInt(Integer::valueOf).sum();
        System.out.printf("Pirate ship status: %d%n", pirateShipSum);
        System.out.printf("Warship status: %d%n", warShipSum);
    }
}