Prism Game Engine

Description

My take on a 3D game engine, something i have been working on for quite a while as a hobby project also as a school assignment. Mainly working on it to learn game engine development and modern c++ techniques. Key focus being rouge like mechanics. The current version is very barebones and more like a OpenGL wrapper, the key tasks other than planned features would be:

• Better error handling and asserts on the release build
• Rditor and engine separation
• Scene graph
• ECS integration

Planned Features

• Major rewrite/redesign planned

• Scene Renderer
• Deffered Shading
• Shadow Mapping
• Post Processing (AO, Bloom, ect...)
• Multithreaded Game Event System
• Multithreaded Rendering Queue
• Procedural Level/World Generation
• Audio Engine (OpenAL)
• Networking Layer (Asio)
• Embeded Scripting Language probably lua

Getting Started

Clone the repository and get all the submodules

git clone --recursive https://github.com/stojanov/prism
cd prism

It is ment to but run directly into an IDE that supports the cmake system, you can also try to generate the project files manually

# Unix
cmake ./
# Windows
cmake -G "Visual Studio 16" -A "Win64" ./

Once you compile you will be ready to peek around the source code, the best way to start is of course main.cpp found under src/game/main.cpp:

Prism::Application app(1280, 720, "Prism");
	
app.CreateLayer<Prism::Examples::VoxelExample>("Voxel Example");
	
app.Run();

Here we can attach a layer/state to be run on the engine, create a layer and plug it into the Prism::Application, that should fairly simple just follow the interface src/prism/Interfaces/ILayer.h which contains the base methods for running a layer.

Keep in mind that every layer should have a constructor that recives a Ref<Core::SharedContext> and a name, you can check out some of the src/prism/Examples for implementing a layer.

Built in systems

• Voxels

  
  • Voxel mesh generation based on a height map(Perlin Noise) and infinite world generation
  • All of the voxel modules can be found under the src/prism/Voxels
  • Chunk mesh generation only supports generating a mesh for a height map but will add more features in the future
  • Chunk mesh generation offloaded into a background thread via a thread pool can be found in src/prism/Voxels/ChunkManager.cpp

Work in Progress

• Major Refactor/Restructure
• Camera System/Controller Rework
• Entity Component System
• Base Editor Controls
• Better documentation

Changelog

• Added a base entity component system (The system part is still under development)
• Added phmap as a module

Credits

TheCherno ChiliTomatoNoodle TheThinMatrix Hopson for the inpiration

License

GPL