github.com/faiface/pixel (go): Package pixel implements platform and backend agnostic core of the Pixel game development library.  It specifies the core Target, Triangles, Picture pattern and implements standard elements, such as Sprite, Batch, Vec, Matrix and RGBA in addition to the basic Triangles and Picture implementations: TrianglesData and PictureData.
Keywords: game-engine|gamedev|gamedev-library|go|golang|graphics|library|window