Version 0.12.0 released!

[corwinkuiper]

Added

• Custom allocator support using the Allocator trait for HashMap. This means the HashMap can be used with InternalAllocator to allocate to IWRAM or the ExternalAllocator to explicitly allocate to EWRAM.
• Support for using windows on the GBA. Windows are used to selectively enable rendering of certain layers or effects.
• Support for the blend mode of the GBA. Blending allows for alpha blending between layers and fading to black and white.
• Added a new agb::sync module that contains GBA-specific synchronization primitives.
• Added support for save files.
• Added implementation of HashMap.retain().
• Added support for affine backgrounds (tiled modes 1 and 2) which allows for scaling, rotating etc of tiled backgrounds.
• Added support for 256 colour backgrounds (when working with affine ones).
• Added affine matrix module. This allows for manipulation of affine matricies for use in backgrounds and in the future objects.
• Added support for dynamic sprites generated at runtime, some parts of this may change significantly so breaking changes are expected here.

Changed

• Many of the places that originally disabled IRQs now use the sync module, reducing the chance of missed interrupts.
• HashMap iterators now implement size_hint which should result in slightly better generation of code using those iterators.
• Transparency of backgrounds is now set once in the toml file rather than once for every image.
• Palette generation now takes into account every single background a toml definition rather than one at a time, you can now find it in the PALETTES constant rather than in every individual image.
• Sound frequency is no longer a crate feature, instead set when initialising the sound mixer.
• testing is now a default feature, so you no longer need to add a separate dev-dependencies line for agb in order to enable unit tests for your project.

Fixed

• Fixed the fast magnitude function in agb_fixnum. This is also used in fast_normalise. Previously only worked for positive (x, y).
• Fixed formatting of fixed point numbers in the range (-1, 0), which previously appeared positive.