C++ Animation System

This project is a C++ implementation of core animation systems commonly found in game engines, built entirely from scratch without external libraries. It covers a state machine, a 1D blend tree, a skeleton hierarchy using a Structure of Arrays layout, a pose blending system with weight normalization, and a two-bone IK solver using the law of cosines.

All math primitives (Vector3, Quaternion, Matrix4x4, Transform) are implemented manually, and each system is covered by a dedicated test suite.