common-utils

A C++ utility library for the OpenBuilder demo project, providing 3D math primitives, logging, and JSON-based configuration.

Features

• Vector3 — 3D vector with arithmetic operators, dot/cross product, normalize, magnitude
• Matrix4x4 — 4×4 transformation matrix with identity, rotation, translation, scale, multiply, inverse
• Logger — spdlog-based logger with CU_LOG_INFO/WARN/ERROR/DEBUG macros
• Config — nlohmann_json-based config loader with dot-notation key access

Dependencies

• spdlog ≥ 1.9
• nlohmann_json ≥ 3.10

Install via Homebrew:

brew install spdlog nlohmann-json

Build

cmake -S . -B build -G Ninja
cmake --build build

Test

cd build && ctest --output-on-failure

Install

cmake --install build --prefix /usr/local

Headers are installed to include/common_utils/.