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+title: Chickadee 0.9.0 released
+date: 2022-10-25 08:00:00
+tags: guile, gamedev, chickadee, release
+summary: Chickadee 0.9.0 has been released
+---
+
+I'm happy to announce that Chickadee 0.9.0 has been released!
+
+Chickadee is a game development toolkit for Guile.  Chickadee aims to
+provide all the features that parenthetically inclined game developers
+need to make 2D and 3D games in Scheme.
+
+Notable improvements and changes:
+
+* The `(chickadee graphics font)` module has been renamed to
+  `(chickadee graphics text)`.
+* SDL2_image has been dropped in favor of using libjpeg-turbo and
+  libpng directly.
+* New `join` procedure for scripts that mimicks traditional thread
+  joining.
+* Improved error messages in `chickadee play`.
+* Languages other than Scheme can now be used with `chickadee play`,
+  such as [Wisp](https://www.draketo.de/software/wisp).  Thanks to
+  Arne Babenhauserheide for their contribution!
+* New `matrix4-inverse`, `matrix4-inverse!`, `matrix4=`, and
+  `matrix3=`, `matrix3-copy`, `matrix3-copy!`, `matrix4-copy`, and
+  `matrix4-copy!` procedures in `(chickadee math matrix)` module.
+* `matrix4-transform!` has been replaced with two procedures:
+  `matrix4-transform-vec2!` and `matrix4-transform-vec3!`.
+* New `#:shear` keyword argument for `draw-sprite` and
+  `sprite-batch-add!` procedures in `(chickadee graphics sprite)`.
+* New `ignore-files` configuration option for `chickadee bundle`.
+
+Bug fixes:
+
+* Games no longer crash if there is no audio device available.
+* Transformation matrices are now properly applied to the origins of
+  vector paths.
+* Shearing is now calculated correctly in `matrix4-2d-transform!` in
+  `(chickadee math matrix)`.
+* `set-vec3-z!` is now exported from the `(chickadee math vector)`
+  module.
+* Fixed issue with inverted Y coordinates when using bitmap fonts.
+* Fixed `agenda-clear` not resetting state correctly in `(chickadee
+  scripting agenda)` module.
+* Cube map usage in PBR/Phong shaders now work on older OpenGL
+  versions.
+* Fixed multiple bugs in `chickadee bundle`.
+* Fixed `vec2-clamp-to-rect` implementation in `(chickadee math
+  rect)`.
+
+source tarball: <https://files.dthompson.us/chickadee/chickadee-0.9.0.tar.gz>
+
+signature: <https://files.dthompson.us/chickadee/chickadee-0.9.0.tar.gz.asc>
+
+See the [Chickadee project page](/projects/chickadee.html) for more
+information.
+
+Bug reports, bug fixes, feature requests, and patches are welcomed.
+
+Have fun!
+
+P.S. - The [2022 Lisp Game
+Jam](https://itch.io/jam/lisp-game-jam-2022) is coming up on October
+28th!  Consider joining in on the fun!