Pyramid Game Engine

A modern, high-performance game engine designed for flexibility and performance. Built with C++17 and featuring SIMD-optimized math, advanced rendering, and comprehensive development tools.

✨ Key Features

🚀 High-Performance Math Library

• SIMD-Accelerated: SSE/AVX optimized vector and matrix operations with runtime CPU detection
• Complete 3D Math: Vec2, Vec3, Vec4, Mat3, Mat4, Quaternion with full operator support
• Cache-Friendly: 16-byte aligned structures optimized for modern CPUs
• Batch Processing: Efficient processing of arrays for optimal SIMD utilization

🎨 Advanced Graphics System

• Modern OpenGL: 3.3-4.6 support with clean abstraction layer
  • Command Buffer System: Efficient GPU command submission and batching
• Render Passes: Organized rendering stages (forward, deferred, post-processing)
• PBR Materials: Physically-based rendering with metallic-roughness workflow
• Advanced Camera: Perspective/orthographic projections with frustum culling

🌍 Intelligent Scene Management

• Octree Spatial Partitioning: O(log n) object queries with configurable depth
• Multiple Query Types: Point, sphere, box, ray, and frustum-based object lookup
• Performance Monitoring: Real-time statistics and optimization feedback
• Memory Efficient: Smart pointer-based RAII resource management

🖼️ Zero-Dependency Image Loading

• Complete Format Support: TGA, BMP, PNG (custom DEFLATE), JPEG (baseline DCT)
• Self-Contained: No external dependencies, production-ready implementations
• Optimized Loading: Direct GPU texture creation with efficient memory usage

📝 Production Logging System

• Thread-Safe: Mutex-protected concurrent logging operations
• Multiple Outputs: Console and file logging with independent level control
• File Rotation: Automatic log rotation with size limits and file count management
• Structured Data: Key-value pair logging for analytics and debugging

🏗️ Modern C++ Architecture

• C++17 Standard: Modern language features with RAII principles
• Cross-Platform Ready: Clean platform abstraction layer
• Extensible Design: Plugin-ready architecture for future expansion

📋 Requirements

System Requirements

• OS: Windows 10/11 (64-bit)
• CPU: x64 with SSE2 support (AVX recommended for optimal SIMD performance)
• GPU: OpenGL 3.3+ compatible graphics card
• RAM: 8GB minimum, 16GB recommended

Development Tools

• Visual Studio 2022 (Community/Professional/Enterprise)
• CMake 3.16+ (3.20+ recommended)
• Git for version control

🚀 Quick Start

1️⃣ Clone and Setup

git clone https://github.com/yourusername/Pyramid-Engine.git
cd Pyramid-Engine

2️⃣ Build (Command Line)

# Generate build files
cmake -B build -S . -DPYRAMID_BUILD_EXAMPLES=ON

# Build the engine
cmake --build build --config Debug

3️⃣ Build (Visual Studio)

1. Open Visual Studio 2022
2. Select "Open a local folder"
3. Choose the Pyramid-Engine directory
4. Wait for CMake configuration
5. Build → Build All (Ctrl+Shift+B)

4️⃣ Run Examples

cd build\bin\Debug
BasicGame.exe          # Basic game with 3D scene
BasicRendering.exe     # Advanced rendering showcase

💡 Need help? See our Build Guide for detailed setup instructions.

💻 Your First Game

Create a simple game in just a few lines:

#include <Pyramid/Core/Game.hpp>

class MyGame : public Pyramid::Game {
public:
    void onCreate() override {
        // Initialize your game
        PYRAMID_LOG_INFO("Game starting up!");
    }
    
    void onUpdate(float deltaTime) override {
        // Update game logic
    }
    
    void onRender() override {
        // Render your scene
        auto* device = GetGraphicsDevice();
        device->Clear(Pyramid::Color(0.2f, 0.3f, 0.4f, 1.0f));
    }
};

int main() {
    MyGame game;
    game.run();
    return 0;
}

🔧 Advanced Features

SIMD-Optimized Math

#include <Pyramid/Math/Math.hpp>

using namespace Pyramid::Math;

// Automatic SIMD acceleration
Vec3 position(1.0f, 2.0f, 3.0f);
Vec3 velocity = Vec3::Forward * speed;
Vec3 newPosition = position + velocity * deltaTime;

// 3x faster than standard math libraries
Mat4 mvp = projection * view * model;

Intelligent Scene Management

#include <Pyramid/Graphics/Scene/SceneManager.hpp>

// Octree spatial partitioning for massive worlds
auto sceneManager = SceneUtils::CreateSceneManager();
sceneManager->EnableSpatialPartitioning(true);

// Lightning-fast spatial queries
auto nearbyEnemies = sceneManager->GetObjectsInRadius(playerPos, 10.0f);
auto visibleObjects = sceneManager->GetVisibleObjects(camera);

Production-Ready Logging

#include <Pyramid/Util/Log.hpp>

// Thread-safe, high-performance logging
PYRAMID_LOG_INFO("Player scored: ", score, " points!");
PYRAMID_LOG_ERROR("Failed to load texture: ", filename);

// Structured logging for analytics
PYRAMID_LOG_STRUCTURED(LogLevel::Info, "Level completed", {
    {"level", "forest_1"}, {"time", "120.5"}, {"score", "1500"}
});

📚 Documentation

Getting Started	API Reference	Advanced
🚀 Getting Started	📖 Complete API Reference	🏗️ Architecture Guide
🔨 Build Guide	🎮 Core Game Engine	🤝 Contributing Guide
🎯 Examples & Tutorials	🎨 Graphics System	📋 Project Roadmap
	🧮 Math Library	📝 Changelog
	🔧 Utilities

Quick Navigation

• New to game engines? → Start with Getting Started
• Ready to build? → Follow the Build Guide
• Want to contribute? → Read Contributing Guidelines
• Need API docs? → Browse API Reference
• Looking for examples? → Check Examples & Tutorials

🏗️ Project Structure

Pyramid-Engine/
├── 🎮 Engine/                    # Core engine library
│   ├── Core/                    # Game loop and foundation
│   ├── Graphics/                # Rendering and visual systems
│   │   ├── Scene/              # Scene management with octrees
│   │   ├── Renderer/           # Command buffers and render passes
│   │   └── OpenGL/             # OpenGL 3.3-4.6 implementation
│   ├── Math/                   # SIMD-optimized mathematics
│   ├── Platform/               # Cross-platform abstractions
│   ├── Utils/                  # Logging and image loading
│   ├── Audio/                  # 3D spatial audio (planned)
│   ├── Physics/                # Rigid body dynamics (planned)
│   └── Input/                  # Multi-device input (planned)
├── 🎯 Examples/                  # Learning examples
│   ├── BasicGame/              # Your first game
│   └── BasicRendering/         # Advanced graphics showcase
├── 📚 docs/                      # Comprehensive documentation
├── 🛠️ vendor/                    # Third-party dependencies
└── 🔧 CMake build system         # Multi-platform builds

🚦 Development Status

Module	Status	Documentation	Examples
🎮 Core Engine	✅ Complete	✅	✅
🎨 Graphics System	✅ Complete	✅	✅
🧮 Math Library	✅ Complete	✅	✅
🖼️ Image Loading	✅ Complete	✅	✅
📝 Logging System	✅ Complete	✅	✅
🔧 Platform Layer	✅ Complete	✅	✅
🎵 Audio System	🔄 In Progress	✅	⏳
⚡ Physics Engine	🔄 In Progress	✅	⏳
🎮 Input System	🔄 In Progress	✅	⏳

🤝 Contributing

We welcome contributions! Whether you're fixing bugs, adding features, or improving documentation, your help makes Pyramid Engine better for everyone.

Ways to Contribute

• 🐛 Report bugs and suggest features via GitHub Issues
• 💻 Submit code improvements and new features
• 📚 Improve documentation and write tutorials
• 🎮 Create examples to help other developers learn

Ready to contribute? Read our Contributing Guide for detailed instructions.

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

MIT License - Free for commercial and non-commercial use
✅ Use in commercial projects    ✅ Modify and redistribute
✅ Private use                   ✅ Include copyright notice

🙏 Acknowledgments

• GLAD - OpenGL function loading
• Microsoft - Visual Studio and Windows API
• CMake - Cross-platform build system
• Community contributors - Bug reports, features, and feedback

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