florianvazelle / engine

A small data-driven game engine

engine

It's a work in progress small game engine, usable like a C++ library.

Features

• No allocation during game loop (Object pooling)
• Custom run-time type identification
• Data-driven oriented design with Entity, Component and System
• Multithreading system with Thread Pool
• Basic SIMD operations
• Event System

RTTI

• Compile-time hashing (with constexpr and CRC32)
• Disabling default C++ RTTI (with -fno-rtti flags)

ECS

• Entity type is just an alias of uint32_t
• Using of Factory Design to allocate Component in Pools
• We can GetEntitiesWithTags to retrieve entities with certain components

Building

Build and run the standalone target

Use the following command to build and run the executable target.

cmake -Bbuild
cmake --build build
./build/bin/pong

Build single include

python .\scripts\amalgamate.py -c .\scripts\config.json -s .

Dependencies

• C++17 compiler :
  • Visual Studio 2016
  • GCC 7+ or Clang 8+
• Git for cmake automatic dependencies
• CMake for build system creation (>= 3.12)
• Doxygen for generate documentation (>= 1.8, optional)

References

• Pool and Arena
• ECS Tutorial
• SIMD Matrix Multiplication, Inverse
• Fixed-Step Game Loop
• Event and Delegate
• Double-check locking