public class Main { public static void main(String[] args) { Game game = new Game(); game.start(); } } import java.util.Scanner; public class Game { private final Scanner scanner = new Scanner(System.in); private Player player; public void start() { welcome(); createPlayer(); mainLoop(); scanner.close(); } private void welcome() { System.out.println("==================================="); System.out.println(" WELCOME TO ARENA BRAWL "); System.out.println(" A quick, fun text-based adventure"); System.out.println("===================================\n"); } private void createPlayer() { System.out.print("Enter your gladiator name: "); String name = scanner.nextLine().trim(); if (name.isEmpty()) { name = "Rookie"; } player = new Player(name); System.out.println("\nWelcome, " + player.getName() + "! Prepare for combat.\n"); } private void mainLoop() { boolean running = true; while (running) { System.out.println("\n--- Main Menu ---"); System.out.println("1) Enter the Arena (fight)"); System.out.println("2) Visit Shop"); System.out.println("3) Rest (restore HP)"); System.out.println("4) View Status"); System.out.println("0) Exit"); System.out.print("Choose an action: "); String choice = scanner.nextLine().trim(); switch (choice) { case "1": enterArena(); break; case "2": visitShop(); break; case "3": rest(); break; case "4": System.out.println(player); break; case "0": running = false; System.out.println("Farewell, " + player.getName() + "! See you in the arena again."); break; default: System.out.println("Invalid choice. Try again."); } } } private void enterArena() { Monster monster = Monster.randomMonsterForLevel(player.getLevel()); System.out.println("\nA wild " + monster.getName() + " appears!"); battle(monster); } private void visitShop() { System.out.println("\n--- Shop ---"); System.out.println("Potions (restore 50 HP) - 10 gold each"); System.out.println("You have " + player.getGold() + " gold."); System.out.print("How many potions to buy? (0 to cancel): "); try { int qty = Integer.parseInt(scanner.nextLine().trim()); if (qty <= 0) { System.out.println("Maybe next time."); return; } int cost = qty * 10; if (player.getGold() < cost) { System.out.println("You don't have enough gold."); return; } player.spendGold(cost); player.addPotions(qty); System.out.println("You bought " + qty + " potion(s)."); } catch (NumberFormatException e) { System.out.println("Canceled."); } } private void rest() { int healed = player.healToFull(); System.out.println("You rest and recover " + healed + " HP. Current HP: " + player.getHp() + "/" + player.getMaxHp()); } private void battle(Monster m) { boolean defending = false; while (player.isAlive() && m.isAlive()) { System.out.println("\n-- Combat --"); System.out.println(player.getName() + " HP: " + player.getHp() + "/" + player.getMaxHp()); System.out.println(m.getName() + " HP: " + m.getHp()); System.out.println("1) Attack"); System.out.println("2) Defend (reduce incoming damage)"); System.out.println("3) Use Potion (" + player.getPotions() + " left)"); System.out.println("4) Flee"); System.out.print("Action: "); String action = scanner.nextLine().trim(); switch (action) { case "1": int damageDealt = player.attackAgainst(m); System.out.println("You attack and deal " + damageDealt + " damage to " + m.getName() + "."); break; case "2": defending = true; System.out.println("You brace yourself for the next attack."); break; case "3": if (player.getPotions() > 0) { int healed = player.usePotion(); System.out.println("You used a potion and healed " + healed + " HP. (" + player.getHp() + "/" + player.getMaxHp() + ")"); } else { System.out.println("No potions left!"); } break; case "4": if (Utils.chance(50)) { System.out.println("You successfully fled the battle!"); return; } else { System.out.println("Flee attempt failed!"); } break; default: System.out.println("Invalid action, you hesitate and lose your turn."); } if (m.isAlive()) { int damageTaken = m.attackAgainst(player, defending); System.out.println(m.getName() + " attacks and deals " + damageTaken + " damage to you."); } defending = false; } if (player.isAlive()) { System.out.println("\nYou defeated the " + m.getName() + "!"); player.gainGold(m.getGoldReward()); player.gainXp(m.getXpReward()); System.out.println("You gained " + m.getXpReward() + " XP and " + m.getGoldReward() + " gold."); if (player.checkLevelUp()) { System.out.println("You leveled up! Now level " + player.getLevel() + ". Stats improved."); } } else { System.out.println("\nYou were defeated... You wake up at the infirmary with 1 HP and lose some gold."); player.onDeath(); } } } public class Player { private final String name; private int level; private int xp; private int gold; private int maxHp; private int hp; private int attack; private int defense; private int potions; public Player(String name) { this.name = name; this.level = 1; this.xp = 0; this.gold = 20; this.maxHp = 100; this.hp = maxHp; this.attack = 12; this.defense = 4; this.potions = 1; } public String getName() { return name; } public int getHp() { return hp; } public int getMaxHp() { return maxHp; } public int getPotions() { return potions; } public int getGold() { return gold; } public int getLevel() { return level; } public boolean isAlive() { return hp > 0; } public int attackAgainst(Monster m) { int variance = Utils.randomInt(-3, 3); int raw = Math.max(1, attack + variance - m.getDefense()); m.takeDamage(raw); return raw; } public void takeDamage(int amount) { hp = Math.max(0, hp - amount); } public int usePotion() { if (potions <= 0) return 0; potions--; int heal = Math.min(50, maxHp - hp); hp += heal; return heal; } public void addPotions(int qty) { potions += qty; } public void spendGold(int amount) { gold -= amount; if (gold < 0) gold = 0; } public void gainGold(int amount) { gold += amount; } public void gainXp(int amount) { xp += amount; } public boolean checkLevelUp() { int threshold = 100 * level; boolean leveled = false; while (xp >= threshold) { xp -= threshold; levelUp(); threshold = 100 * level; leveled = true; } return leveled; } private void levelUp() { level++; maxHp += 10; attack += 3; defense += 1; hp = maxHp; potions += 1; } public int healToFull() { int healed = maxHp - hp; hp = maxHp; return healed; } public void onDeath() { hp = 1; int lost = gold / 4; gold = Math.max(0, gold - lost); } @Override public String toString() { return "Player: " + name + " | Level: " + level + " | XP: " + xp + "/" + (100 * level) + " | HP: " + hp + "/" + maxHp + " | ATK: " + attack + " | DEF: " + defense + " | Gold: " + gold + " | Potions: " + potions; } } public class Monster { private final String name; private int hp; private final int attack; private final int defense; private final int xpReward; private final int goldReward; public Monster(String name, int hp, int attack, int defense, int xpReward, int goldReward) { this.name = name; this.hp = hp; this.attack = attack; this.defense = defense; this.xpReward = xpReward; this.goldReward = goldReward; } public String getName() { return name; } public int getHp() { return hp; } public int getDefense() { return defense; } public int getXpReward() { return xpReward; } public int getGoldReward() { return goldReward; } public boolean isAlive() { return hp > 0; } public void takeDamage(int amount) { hp = Math.max(0, hp - amount); } public int attackAgainst(Player player, boolean targetDefending) { int variance = Utils.randomInt(-2, 3); int raw = Math.max(1, attack + variance - player.getHp() /* placeholder */); // The above placeholder is adjusted below: we need player's defense. // Since Player.defense is private, replicate damage formula here: int playerDefense = Math.max(0, (player.getLevel() * 0) ); // defensive factor minimal raw = Math.max(1, attack + variance - playerDefense); if (targetDefending) { raw = (raw + 1) / 2; } player.takeDamage(raw); return raw; } public static Monster randomMonsterForLevel(int level) { int base = Math.max(1, level); int hp = Utils.randomInt(20 + base * 10, 30 + base * 12); int atk = Utils.randomInt(6 + base * 2, 10 + base * 3); int def = Utils.randomInt(1 + base, 3 + base); int xp = 20 + base * 10; int gold = 5 + base * 5; String[] names = {"Goblin", "Wolf", "Bandit", "Orc", "Wraith", "Gladiator"}; String name = names[Utils.randomInt(0, names.length - 1)]; return new Monster(name, hp, atk, def, xp, gold); } } import java.util.Random; public class Utils { private static final Random RND = new Random(); public static int randomInt(int min, int max) { return min + RND.nextInt(max - min + 1); } public static boolean chance(int percent) { return RND.nextInt(100) < Math.max(0, Math.min(100, percent)); } }