# Java Knight ⚔️

A turn-based RPG with Roguelike elements that runs directly in the terminal.

---

### **Introduction**

**Java Knight** is a terminal-based RPG developed in Java that focuses on practicing and applying core **Object-Oriented Programming (OOP)** concepts.

In this game, players choose a hero class and explore dangerous locations filled with monsters. By defeating enemies, players gain experience, level up, and collect special keys needed to unlock the final area of the game: the **Castle**.

Inside the Castle awaits the final boss — the mighty **Dragon**.

The project was designed to demonstrate clean software architecture using concepts such as:

- Inheritance
- Encapsulation
- Polymorphism
- Abstraction
- Method Overriding
- Modular class design

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# ⚙️ How to Compile and Run

Make sure you have **Java JDK 17+** installed.

### **Compile the Project**

Open a terminal in the project root folder and run:

```bash
javac -d out src/org/project/**/*.java
```

This command compiles all Java source files and stores the compiled classes inside the `out` directory.

---

### **Run the Game**

```bash
java -cp out org.project.Main
```

The game will start in the terminal.

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# 🧱 Project Structure & Classes

The project follows a modular object-oriented design.

---

## **Main**

The entry point of the application.

Responsibilities:

- Starts the game
- Creates the `Game` object
- Runs the main game loop

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## **Game**

Controls the entire gameplay flow.

Responsibilities:

- Character selection
- Location selection
- Combat management
- XP and leveling
- Key collection
- Final boss battle

---

## **Entity**

Base class for all living characters in the game.

Shared attributes:

- Name
- Health
- Damage

Both `Player` and `Enemy` inherit from this class.

---

## **Player (Abstract Class)**

Represents the playable character.

Contains common player functionality such as:

- Health
- Mana/Stamina
- Combat actions
- XP system
- Level system

### **Player Classes**

#### **Knight 🛡️**
- High health
- Balanced combat style
- Special ability can stun enemies

#### **Wizard 🔮**
- High mana pool
- Strong magical attacks
- Special ability deals damage and heals

#### **Assassin 🗡️**
- Fast attacks
- High critical damage
- Special ability boosts burst damage

---

## **Enemy (Abstract Class)**

Base class for all enemies.

Each enemy type has unique behavior and abilities.

### **Enemy Types**

#### **Goblin**
- Low HP
- High critical chance

#### **Skeleton**
- Can resurrect once after death

#### **Vampire**
- Steals health from the player

#### **Dragon 🐉**
- Final boss
- Ignores defense abilities
- Deals massive damage

---

## **Location**

Represents explorable areas in the game.

Each location contains one specific enemy type.

### Example Locations

- Dark Forest → Goblin
- Ancient Ruins → Skeleton
- Bloody Swamp → Vampire

---

## **Item**

Represents collectible items such as keys dropped by enemies.

Keys are required to unlock the Castle.

---

## **Colors**

Utility class containing ANSI color codes for colorful terminal output.

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# 🧠 OOP Principles Used

### **Encapsulation**
Player and enemy stats are protected using methods such as:

```java
takeDamage()
heal()
```

instead of direct field access.

---

### **Inheritance**
Shared behavior is inherited from base classes.

```text
Entity
 ├── Player
 │    ├── Knight
 │    ├── Wizard
 │    └── Assassin
 │
 └── Enemy
      ├── Goblin
      ├── Skeleton
      ├── Vampire
      └── Dragon
```

---

### **Polymorphism**
Different classes override methods such as:

```java
attack()
specialAbility()
```

allowing each subclass to behave differently.

---

### **Abstraction**
Abstract classes like `Player` and `Enemy` define shared structure while forcing subclasses to implement specific behavior.

---

# 🎮 How to Play

## **1. Choose Your Class**

At the beginning of the game, choose one of three character classes:

| Class | Description |
|---|---|
| Knight | High defense and balanced damage |
| Wizard | Powerful magic attacks and healing |
| Assassin | Fast attacks and high critical damage |

---

## **2. Choose a Location**

Each location contains a different enemy type.

Example:

- Mordor → Goblins
- Ancient Bones → Skeletons
- Mystic Falls → Vampires

---

## **3. Fight Enemies**

During combat, you can choose from 5 actions:

1. Light Attack
2. Heavy Attack
3. Defend
4. Heal
5. Special Ability

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## **4. Gain XP and Level Up**

Defeating enemies grants XP.

Leveling up increases:

- Maximum Health
- Maximum Mana/Stamina

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## **5. Collect Keys 🗝️**

Enemies have a chance to drop unique keys.

You must collect all keys before entering the Castle.

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## **6. Defeat the Dragon 🐉**

Once all keys are collected, the Castle becomes accessible.

Defeat the Dragon to win the game.

If your HP reaches 0, the game ends.

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# ✅ Victory Condition

- Collect all keys
- Enter the Castle
- Defeat the Dragon

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# ❌ Game Over

- Your character dies during battle

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Good luck, warrior ⚔️