Java RPG Project

A small console-based Java RPG where the player selects a character class and fights a fixed sequence of enemies: Vampire, Goblin, Skeleton, and Dragon.

Gameplay

The game flow is handled in Main.java:

1. The player enters a name.
2. The player chooses a class:
   • Knight
   • Wizard
   • Assassin
3. The game creates four locations and enemies:
   • Overworld -> Vampire
   • Village -> Goblin
   • Nether -> Skeleton
   • End -> Dragon
4. The player fights each enemy in sequence.
5. If the player dies, the game ends.
6. If all enemies are defeated, the player wins.

Combat System

Each battle is turn-based.

Player actions

The player can choose from:

• light attack
• normal attack
• heavy attack
• heal
• skip

Enemy actions

Enemies attack after the player’s turn. Some enemies have special behavior:

• Vampire can restore health while attacking
• Goblin can land critical hits
• Skeleton revives once after being defeated
• Dragon acts as a boss enemy with high HP

Core Interfaces and Classes

Entity

Common contract for all combatants.

It defines shared behavior such as:

• attack(Entity target)
• heal(int health)
• fillMana(int mana)
• takeDamage(int damage)
• getMaxHP()
• getMaxMP()

Player

Abstract base class for all player characters.

It stores:

• name
• weapon
• armor
• current and maximum HP/MP
• base damage
• alive status

It also provides:

• normal attack
• heavy attack
• damage handling with armor defense
• healing
• mana restoration

Enemy

Abstract base class for enemies.

It stores:

• weapon
• HP/MP
• base damage
• alive status

It handles damage directly and leaves defeat behavior to subclasses through getKilled().

Player Classes

Knight

• HP: 100
• MP: 10
• Base damage: 10

A durable melee fighter with strong base damage.

Wizard

• HP: 150
• MP: 10
• Base damage: 4

A high-HP character using the shared Player behavior.

Assassin

• HP: 80
• MP: 20
• Base damage: 5

A lighter character with more mana than the Knight.

Enemy Classes

Vampire

• HP: 50
• MP: 50

Attacks and restores part of the damage dealt as health.

Goblin

• HP: 30
• MP: 50

Randomly performs either a normal or critical attack.

Skeleton

• HP: 50
• MP: 50
• Base damage: 10

Revives once after death, then dies permanently the second time.

Dragon

• HP: 500
• Base damage: 2

A boss-style enemy with a fire-breath themed attack and custom death handling.

Items

Weapon

Abstract item type for damage-dealing equipment.

It includes:

• damage
• mana cost

Sword

A weapon with low damage and a mana cost.

It also includes a unique ability that can damage multiple targets.

DragonBreath

A stronger weapon used for dragon-related combat behavior.

Armor

Armor

Abstract armor type with:

• defense
• maximum defense
• durability
• maximum durability
• broken state

Armor can be repaired, and when durability reaches zero, its defense drops to zero.

KnightArmor

A concrete armor type used by the player in the main game flow.

Flask

A healing item that restores a fraction of the target’s maximum HP.

Location

Location is a simple class that stores a location name and one enemy.