Flappy-Bird-in-OOP-Java

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🕹️ Flappy Bird Game

A JavaFX-based Flappy Bird clone featuring object-oriented design, dynamic difficulty, sound effects, theme customization, and persistent leaderboards. Built to demonstrate advanced Java programming and OOP concepts.

Implementation.Demo.mp4

🚀 Key Features

1. Player Customization: Enter your name and track high scores with a serialized leaderboard (scores.dat).

2. Dynamic Difficulty: Speed and gravity adjust as score increases (adjustDifficulty()).

3. Audio Integration:

• Sound effects for jumps, collisions, and UI interactions (Voice class with MediaPlayer).

• Background music loop during gameplay.

• Theme Support: Switch between day/night modes (ThemeSelection class).

4. Responsive UI:

• Stylish buttons with hover/click effects (StyledButton).

• Animated countdown and game-over screens.

🧩 Class Structure & OOP Principles

1. Encapsulation

• FlappyBird encapsulates game logic (bird physics, pipe generation, collision detection).

• Scoreboard data is managed via serialization (saveScores(), loadScores()).

2. Inheritance

• JavaFX components extended (e.g., GameView inherits Pane, FlappyBird extends StackPane).

3. Polymorphism

• Overloaded playSong() in Voice class for different sound effects.

• Dynamic UI updates via method overrides (e.g., draw() in GameView).

4. Abstraction

• Separated game logic (FlappyBird) from UI rendering (GameView).

• Abstracted pipe behavior into Pipe nested class.

🛠️ Technical Implementation

Game Loop:

Uses JavaFX AnimationTimer for smooth rendering.

Physics-based bird movement (velocityY, gravity variables).

Collision System:

Pixel-perfect collision detection between bird/pipes (collision() method).

File I/O:

Scores persisted via ObjectOutputStream/ObjectInputStream.

Dependency Management:

Image/sound files loaded from absolute paths (customize with relative paths for portability).

🔌 Dependencies & Imports JavaFX: Used for UI rendering (Scene, Canvas, AnimationTimer).

Media Handling: javafx.scene.media for audio playback.

File I/O: java.io.Serializable for leaderboard persistence.

🎯 Skills Demonstrated

1. Advanced OOP: Clean separation of concerns between game logic, UI, and audio.

2. JavaFX Mastery: Custom animations, event handling, and responsive layouts.

3. Resource Management:

• Image loading from disk (new Image("file:path.png")).

• Audio integration with threading via PauseTransition.

4. Code Quality:

• Constants (WIDTH, HEIGHT) for maintainability.

• Modular collision detection and physics systems.

📦 How to Run

Requirements:

Java 17+ with JavaFX SDK configured.

Run:

bash Copy javac --module-path $PATH_TO_JAVAFX --add-modules javafx.controls,javafx.media application/*.java
java --module-path $PATH_TO_JAVAFX --add-modules javafx.controls,javafx.media application.PlayFlappyBirdApp