🛡️ Java‑Knight RPG

A console‑based fantasy RPG written entirely in pure Java.

Fight monsters, explore mythical locations, manage your inventory, unlock abilities and defeat the Dragon of Valhalla.

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📚 Table of Contents

• Overview
• Core Features
• Player Classes
• Systems & Managers
• Items & Equipment
• Combat System
• Locations
• Boss Fight
• Project Structure
• How to Run
• Future Improvements
• Example Output
• Author

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⚔️ Overview

Java‑Knight is a modular turn‑based RPG engine built with Java and object‑oriented design.

The project focuses on:

• Clean OOP architecture
• Modular manager systems
• Expandable combat mechanics
• Class‑based gameplay
• Status effect system
• Inventory & equipment system

The GameLoop controls the main gameplay cycle including player actions, combat resolution and movement between locations.

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🧩 Core Features

🎮 Gameplay Loop

The GameLoop manages:

• Player creation
• Class selection
• Location movement
• Enemy spawning
• Combat handling
• Inventory usage

Locations are interconnected and enemies spawn dynamically.

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🧙 Player Classes

Each class has its own stats, armor and special ability.

Class	Ability	Description
Knight	Guardian Oath	Heals and increases damage
Wizard	Arcane Storm	Powerful magic attack
Assassin	Poison Dagger	Poison damage and burst attack

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🛠 Systems & Managers

The architecture separates game logic into managers.

Manager	Responsibility
ActionDecisionManager	Handles combat decisions
InventoryManager	Equipment & item usage
ManaCostManager	Mana cost calculations
SpecialAbilityManager	Executes abilities
StatusEffectManager	Applies burn, poison, freeze
TotalAttackCalculator	Calculates final damage

This modular design keeps the GameLoop clean and maintainable.

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⚗️ Items & Equipment

⚔ Weapons

• Sword
• Dagger

Weapons can receive special effects.

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🌫 Weapon Effects

Effect	Description
BurnEffect	Damage over time
FreezeEffect	Slows or freezes target
PoisonEffect	Gradual HP drain

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🛡 Armor

Each class uses its own armor type.

Examples:

• KnightArmor
• WizardArmor
• AssassinArmor

Armor increases defense and survivability.

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🧴 Consumables

Consumables are located in:

org.project.item.consumables

Available items:

• HealFlask → restores HP
• ManaFlask → restores MP

These can be used during gameplay from the Inventory menu.

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🧠 Combat System

Combat is turn‑based.

Each round:

1. Status effects update
2. Player action
3. Enemy AI action

Features:

• Damage calculation system
• Defense mechanics
• Status effects
• Ability cooldowns
• Mana system
• XP rewards
• Key drop system

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🗺 Locations

Location	Description
Valhalla	Starting realm
Elysium	Sacred plains
Niflheim	Frozen undead land
Castle	Dragon battlefield

Moving between locations spawns enemies:

• Goblin
• Skeleton
• Vampire

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🐉 Boss Fight

To unlock the final boss you must collect:

• GoblinKey
• SkeletonKey
• VampireKey

After collecting all keys you can trigger:

Fight Dragon

Defeat the Dragon of Valhalla to win the game.

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🎨 Console Colors

ANSI colors are used for better terminal visuals.

Colors.RED    = "\u001B[31m";
Colors.GREEN  = "\u001B[32m";
Colors.YELLOW = "\u001B[33m";
Colors.CYAN   = "\u001B[36m";
Colors.RESET  = "\u001B[0m";

Example:

Guardian Oath: Sir Duncan heals +5 HP and gains 50% increased damage.

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🧩 Project Structure

org.project
 ┣ abilities
 ┃ ┣ ArcaneStorm.java
 ┃ ┣ BoneStrike.java
 ┃ ┣ GuardianOath.java
 ┃ ┣ InfernoBreath.java
 ┃ ┣ LifeSteal.java
 ┃ ┣ PoisonDagger.java
 ┃ ┗ SpecialAbility.java
 ┣ combat
 ┃ ┣ AttackResult.java
 ┃ ┗ TotalAttackCalculator.java
 ┣ entity
 ┃ ┣ players
 ┃ ┗ enemies
 ┣ item
 ┃ ┣ armors
 ┃ ┣ weapons
 ┃ ┗ consumables
 ┣ managers
 ┃ ┣ InventoryManager.java
 ┃ ┣ ActionDecisionManager.java
 ┃ ┣ ManaCostManager.java
 ┃ ┣ SpecialAbilityManager.java
 ┃ ┗ StatusEffectManager.java
 ┣ weaponEffects
 ┃ ┣ BurnEffect.java
 ┃ ┣ FreezeEffect.java
 ┃ ┗ PoisonEffect.java
 ┣ location
 ┃ ┗ Location.java
 ┣ Colors.java
 ┣ GameLoop.java
 ┗ Main.java

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🚀 How to Run

Compile the project:

javac -d out src/main/java/org/project/Main.java

Run the game:

java -cp out org.project.Main

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💬 Example Console Output

====== JAVA KNIGHT ======
Choose class:
1. Knight   (HP:150 MP:80 DMG:12)
2. Wizard   (HP:80 MP:200 DMG:10)
3. Assassin (HP:90 MP:120 DMG:15)

1
==== GAME MENU ====
Location: Valhalla
Enemy: vampire{MAX_HP : 90 | MAX_MP : 80 | XP_REWARD : 80 | BASE_DAMAGE : 12 | personalArmor = vampire armor | Type: MEDIUM | Defense: 16 | Durability: 30/30}

1. Fight
2. Inventory
3. Move
0. Exit

1
⚔ COMBAT STARTED! ⚔
==== YOUR TURN ====
Sir Duncan-> HP: 150 | MP: 80 | level: 1 | XP: 0
Vampire-> HP: 90 | MP: 80


Choose attack type:

1.lightAttack
2.heavyAttack
3.heal
4.defend
5.ability
6.shielBash
7.inventory
2
Vampire got 34 damage


==== ENEMY TURN ====

enemy random choose action: lightAttack
Sir Duncan got 17 damage

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🧠 Future Improvements

• Multiple enemies per location
• Save / Load system
• More consumables
• More classes
• Advanced enemy AI
• Graphical version (JavaFX / LWJGL)

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🧑‍💻 Author

Created by Mohammadreza Ashrafian

2026

⚔️ May your code be strong and your armor unbreakable.