Pokemon Java

Overview

Pokemon Java is a battle simulator that recreates the classic Pokemon battle mechanics in a JavaFX application. This project was built to explore game development concepts and practice object-oriented programming in Java.

Game Mechanics

The simulator faithfully recreates core Pokemon battle mechanics:

Type System

• 18 different types with strengths and weaknesses
• Type effectiveness calculations (super effective, not very effective, immune)
• Dual-type Pokemon with combined type interactions

Battle System

• Turn-based combat with move selection
• Stats system: HP, Attack, Defense, Special Attack, Special Defense, Speed
• Move categories: Physical, Special, and Status moves
• Accuracy and critical hit calculations

Pokemon Data

• Multiple Pokemon with accurate base stats
• Four moves per Pokemon with PP (Power Points)
• Level-based stat scaling

Technical Implementation

Architecture

The project follows clean OOP principles:

Pokemon
├── Stats (HP, Attack, Defense, etc.)
├── Type (Fire, Water, Grass, etc.)
└── Moves[]
    ├── Power
    ├── Accuracy
    ├── Type
    └── Category

Key Classes

• Pokemon: Core entity with stats, type, and moves
• Move: Abstract class with different move implementations
• Battle: Manages turn order, damage calculation, and win conditions
• TypeChart: Handles type effectiveness lookups
• BattleUI: JavaFX interface for the battle screen

Damage Formula

The damage calculation implements the official Pokemon formula:

Damage = ((2 * Level / 5 + 2) * Power * A/D) / 50 + 2) * Modifiers

Where modifiers include STAB, type effectiveness, critical hits, and random variation.

Features

• Battle animations for attacks and effects
• Health bar with smooth transitions
• Move selection UI with type indicators
• Battle log showing action outcomes
• AI opponent with basic move selection

Challenges

• Balancing complexity: Implementing enough mechanics to feel authentic without scope creep
• Type chart implementation: Managing the 18x18 type effectiveness matrix efficiently
• Animation timing: Synchronizing visual effects with game logic

What I Learned

• Deep dive into game state management
• Complex formula implementation and testing
• JavaFX animation and event handling
• Importance of data-driven design for game content