Solar System Simulator 🌌

A 3D interactive solar system simulator built with Unity where players can explore and interact with planets using meteor projectiles.

🎮 Game Features

Core Gameplay

• 3D Solar System: Navigate through a realistic solar system with planets orbiting around the sun
• Player Movement: Free-roam 3D movement using WASD keys and mouse scroll
• Meteor Launcher: Press SPACE to fire meteors towards the sun
• Planetary Destruction: Meteors can destroy planets, creating spectacular fragment effects
• Realistic Physics: All objects follow physics-based movement and collisions

Included Planets

• Sun (central star)
• Mercury
• Venus
• Earth
• Mars
• Jupiter
• Saturn

🕹️ Controls

Input	Action
W/A/S/D	Move around the solar system
Mouse Scroll	Move forward/backward
Space	Fire meteor
Mouse	Camera automatically looks at the sun

🎯 How to Play

1. Explore: Use WASD and mouse scroll to navigate around the solar system
2. Aim: Your view is always directed towards the sun
3. Fire: Press SPACE to launch meteors from your position
4. Destroy: Watch as meteors hit planets, creating beautiful destruction effects with fragments
5. Physics: Meteors have random sizes (1-10x scale) and travel towards the sun

💥 Destruction System

• Planet Hit: When a meteor hits a planet, the planet is destroyed and spawns 30 colorful fragments
• Sun Hit: When a meteor reaches the sun, it creates 20 fragments
• Fragment Physics: All fragments have random velocities and disappear after 3 seconds

🛠️ Technical Details

Built With

• Unity 3D - Game engine
• C# - Programming language
• 3D Physics - Rigidbody components for realistic movement

Scripts Overview

• playerMovement.cs - Handles player camera and movement controls
• planet_movement.cs - Controls planetary orbiting around the sun
• meteor_movement.cs - Manages meteor physics and collision detection
• fire_meteor.cs - Handles meteor spawning when space is pressed
• fragment_script.cs - Controls fragment behavior and lifetime

📁 Project Structure

Assets/
├── Materials/          # Planet and object textures
├── Scenes/            # Main game scene
├── scripts/           # All C# game logic
├── textures/          # Texture assets
├── fragment.prefab    # Fragment prefab for destruction effects
└── meteor.prefab      # Meteor projectile prefab

🚀 Setup Instructions

1. Clone the repository

   git clone [your-repo-url]

2. Open in Unity

   • Open Unity Hub
   • Click "Open Project"
   • Select the cloned folder
   • Unity version used: [Add your Unity version]

3. Run the Game

   • Open the mainScene in the Scenes folder
   • Press the Play button in Unity Editor

🎓 Educational Purpose

This project was created as part of a Computer Graphics course assignment, demonstrating:

• 3D scene management
• Physics simulation
• Collision detection
• Particle effects
• Player input handling
• Object instantiation and destruction

📋 Requirements

• Unity 3D (recommended version: 2020.3 LTS or later)
• Windows/Mac/Linux compatible

🤝 Contributing

This is an educational project, but feel free to fork and experiment with:

• Adding more planets or celestial bodies
• Implementing different meteor types
• Creating power-ups or special effects
• Adding sound effects and music

📄 License

This project is for educational purposes. Feel free to use and modify for learning.

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Developed as part of Computer Graphics coursework at University of Ioannina 🎓