Worked on the LimeShot/cringe-vector repository to enhance geometric precision in point-in-polygon checks by implementing a rotation-aware ray-casting algorithm with configurable radius proximity. This approach replaced a temporary bounding box heuristic in the IsBelongsShape method, enabling accurate detection of whether a point lies within a rotated polygon or near its edges. The solution addressed false positives in spatial queries, particularly for rotated shapes, and maintained performance suitable for real-time applications. The work involved algorithm implementation, geometry, and vector math, all developed in C#, and resulted in more reliable containment checks for UI and geometry-driven systems without introducing regressions.