import java.util.*;

public class Main { private static final Scanner scanner = new Scanner(System.in); private static final Random rand = new Random(); private static final Random nums = new Random(); private static double goldz = 0; private static double goldMultiplier = 1; private static boolean mazeEntered = false; private static Set inventory = new HashSet<>(); private static int health = 100; private static int mazeX = 0; private static int mazeY = 0;

public static void gold() {
    while (true) {
        System.out.printf("You have %.0f gold.\n", goldz);

        if (goldz >= 1000 && !mazeEntered) {
            System.out.println("\nYou’ve reached 1000 gold!");
            System.out.println("Choose an option:");
            System.out.println("1. Spend Gold");
            System.out.println("2. Enter the Maze. --WARNING, ONCE ENTERED, YOU CANNOT LEAVE--: ");
            System.out.println("3. Keep Mining");

            String choice = scanner.nextLine();

            switch (choice) {
                case "1":
                    shop();
                    break;
                case "2":
                    enterMaze();
                    break;
                case "3":
                    break;
                default:
                    System.out.println("Invalid input. Please try again.");
                    continue;
            }
        }

        System.out.println("Press 'a' to mine, or 'b' to visit the shop");
        String input = scanner.nextLine();

        if (input.equals("a")) {
            goldz += goldMultiplier;
        } else if (input.equals("b")) {
            shop();
        } else {
            System.out.println("Invalid input. Please try again.");
        }
    }
}

public static void shop() {
    while (true) {
        System.out.println("\n=== Shop Menu ===");
        System.out.println("1. Wooden Pickaxe: +2 gold (25 gold)");
        System.out.println("2. Stone Pickaxe: +5 gold (50 gold)");
        System.out.println("3. Iron Pickaxe: +15 gold (300 gold)");
        System.out.println("4. Buy Sword (150 gold)");
        System.out.println("5. Buy Shield (150 gold)");
        System.out.println("6. Buy Torch (150 gold)");
        System.out.println("Type number to buy, or 'L' to leave.");

        String shopInput = scanner.nextLine();

        switch (shopInput) {
            case "1":
                if (goldz >= 25) {
                    goldz -= 25;
                    goldMultiplier = 2;
                    System.out.println("You bought the Wooden Pickaxe.");
                } else {
                    System.out.println("Not enough gold.");
                }
                break;

            case "2":
                if (goldz >= 50) {
                    goldz -= 50;
                    goldMultiplier = 5;
                    System.out.println("You bought the Stone Pickaxe.");
                } else {
                    System.out.println("Not enough gold.");
                }
                break;

            case "3":
                if (goldz >= 300) {
                    goldz -= 300;
                    goldMultiplier = 15;
                    System.out.println("You bought the Iron Pickaxe.");
                } else {
                    System.out.println("Not enough gold.");
                }
                break;

            case "4":
                if (goldz >= 150 && !inventory.contains("Sword")) {
                    goldz -= 150;
                    inventory.add("Sword");
                    System.out.println("You bought a Sword.");
                } else {
                    System.out.println("Not enough gold or you already have it.");
                }
                break;

            case "5":
                if (goldz >= 150 && !inventory.contains("Shield")) {
                    goldz -= 150;
                    inventory.add("Shield");
                    System.out.println("You bought a Shield.");
                } else {
                    System.out.println("Not enough gold or you already have it.");
                }
                break;

            case "6":
                if (goldz >= 150 && !inventory.contains("Torch")) {
                    goldz -= 150;
                    inventory.add("Torch");
                    System.out.println("You bought a Torch.");
                } else {
                    System.out.println("Not enough gold or you already have it.");
                }
                break;

            case "l":
            case "L":
                System.out.println("Leaving the shop...");
                return;

            default:
                System.out.println("Invalid choice.");
        }

        System.out.printf("Gold: %.0f\n", goldz);
        System.out.println("Inventory: " + inventory);
    }
}

public static void enterMaze() {
    mazeEntered = true;
    System.out.println("You step into the Maze...");
    System.out.println("Use W (up), A (left), S (down), D (right) to move.");
    mazeLoop();
}

public static void mazeLoop() {
    while (true) {
        System.out.printf("\nYou are at position (%d, %d).\n", mazeX, mazeY);
        System.out.println("Enter direction (W/A/S/D)");
        String move = scanner.nextLine().toLowerCase();

        switch (move) {
            case "w":
                mazeY++;
                break;
            case "s":
                mazeY--;
                break;
            case "a":
                mazeX--;
                break;
            case "d":
                mazeX++;
                break;
            default:
                System.out.println("Invalid direction.");
                continue;
        }

        if (mazeY > 10 || mazeY < -10 || mazeX > 10 || mazeX < -10) {
            System.out.println("Reached end of map. Spawning back at 0,0...");
            mazeX = 0;
            mazeY = 0;
        }

        randomMazeEvent();

        if (mazeX == 10 && mazeY == -15) {
            System.out.println("--!!YOU WIN!!--");
            System.exit(0);
        }

        if (health <= 0) {
            System.out.println("You have perished in the maze.");
            System.exit(0);
        }
    }
}

public static void randomMazeEvent() {
    int event = rand.nextInt(6);  // Now includes case 5

    switch (event) {
        case 0:
        case 1:
            System.out.println("Nothing here. You move cautiously...");
            break;

        case 2:
            System.out.println("You found treasure! +100 gold.");
            goldz += 100;
            break;

        case 3:
            System.out.println("A trap is triggered!");
            if (inventory.contains("Shield")) {
                System.out.println("Your shield blocks the damage.");
            } else {
                System.out.println("You take 25 damage!");
                health -= 25;
            }
            break;

        case 4:
            System.out.println("A wild enemy appears!");
            if (inventory.contains("Sword")) {
                System.out.println("You defeat it with your sword!");
            } else {
                System.out.println("You have no weapon! You take 50 damage!");
                health -= 50;
            }
            break;

        case 5:
            System.out.println("Heavy fog has blurred your vision.");
            if (inventory.contains("Torch")) {
                System.out.println("Fog cleared.");
            } else {
                int randomNums = nums.nextInt(5);
                System.out.println("You got lost.");
                mazeX = randomNums;
                mazeY = randomNums;
            }
            break;
    }

    System.out.println("Current Health: " + health);
    System.out.printf("Current Gold: %.0f\n", goldz);
}

}