🚀 Space Invaders SAD

A simple and fun project inspired by the classic Space Invaders, developed as a C# Console Application for the Systems Analysis and Development (SAD) course.

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🎮 About the Project

The game was developed using fundamental concepts such as:

• Object-Oriented Programming (OOP)
• Loops and Iteration Structures
• List Manipulation
• Collision Detection
• Game Loop Architecture
• Console Keyboard Input Handling
• Code Refactoring and Organization

The player's objective is to destroy all aliens before they reach the spaceship.

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🕹️ Gameplay

Controls

• Move the spaceship:

  • ⬅️ Left Arrow
  • ➡️ Right Arrow

• Shoot:

  • 🔫 Space Bar

• Exit the game:

  • ❌ ESC

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📸 Features

✅ Spaceship movement system
✅ Shooting system with cooldown
✅ Collective alien movement
✅ Collision detection system
✅ Lives system
✅ Score tracking system
✅ Victory screen
✅ Game Over screen
✅ Dynamic HUD
✅ Sound effects using Console.Beep()
✅ Refactored and optimized code

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🏗️ Project Structure

SpaceInvadersSAD/
│
├── SpaceInvadersSAD.cs
├── README.md

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🧠 Class Structure

🔹 Entity (Abstract Class)

Base class responsible for common properties:

• X/Y Position
• Symbol
• Color

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🔹 Spaceship

Responsible for:

• Player movement
• Life management
• Screen boundary control

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🔹 Alien

Represents the game's enemies.

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🔹 Bullet

Handles shooting and projectile logic.

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⚙️ Technologies Used

• Language: C#
• Platform: .NET
• Interface: Console Application

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▶️ How to Run

1️⃣ Clone the Repository

git clone https://github.com/your-username/space-invaders-sad.git

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2️⃣ Navigate to the Project Folder

cd space-invaders-sad

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3️⃣ Build and Run

dotnet run

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📚 Concepts Applied

• Object-Oriented Programming
• Encapsulation
• Inheritance
• Polymorphism
• LINQ
• Conditional Statements
• Loop Structures
• Collection Manipulation
• FPS Control

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📈 Version History

Date	Change
2026-03-12	Initial project creation
2026-03-14	Entity classes refactoring
2026-03-15	Screen size and FPS adjustments
2026-03-18	Victory and Game Over screens added
2026-03-19	Complete refactoring and optimization

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👨‍💻 Author

Luis Felipe Dias de Souza

Software Development student focused on Full Stack Development, databases, and software engineering. Passionate about building scalable applications and continuously improving technical skills through hands-on projects.

• GitHub: https://github.com/luf3ds
• LinkedIn: https://www.linkedin.com/in/luis-felipe-dias-s-155b84378/
• Email: lufeds@outlook.com

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📄 License

This project is open for educational purposes, learning, and modifications.