TODO

Core:
  [ ] Get asset management loading working
  [ ] Get hot reload for assets working
    [ ] Dependent file hot reloads (for shader includes, etc?)
  [✔] Fix virtual file system (registry + more formats)
  [ ] Get top-level crash handler working
  [✔] Allow reads from buffers and textures
  [✔] Finalize core maths library
  [ ] Add lots of tests
  [ ] Fix up lifetimes for core types (graphics, etc)
  [ ] Give documentation a bit of love
  [ ] Swap to stable (instead of nightly)?
  [✔] Scene graph
  [ ] Scene graph loader
  [ ] Symmetric matrices for intersection tests, etc?
  [ ] Support for custom allocators? (A frame arena for scratch work, perhaps?)
  [ ] Use static pointers for graphics server, audio server, etc?
  [ ] Add matrix inversion and more core linear algebra or instead use an existing crate
  [ ] Lightweight entity component system?
  [ ] In-game console (with command history, interpreter, etc)
  [ ] Configuration variables (cvars, doom-like but more ergonomic?)
  [ ] Better core smart pointer type instead of using Rc<RefCell>, etc.

AI:
  [ ] Basic automata
    [ ] Behaviour trees?
    [ ] Decision trees?
    [ ] State machines?
  [✔] Path-finding support (A*)
  [ ] Navigation meshes?
  [ ] Dijkstra maps for 2d flow finding?

Graphics:
  [ ] Add bitmap fonts
  [ ] Add vector fonts
  [ ] Improve vector font rendering and caching
  [✔] Get #[derive(Vertex)] working
  [ ] Font layout/galley system
  [ ] Add sprite pivots, transforms, etc
  [ ] Add sprite animations
  [ ] Add tilemap pivots, transforms, etc
  [ ] Add tilemap animations
  [ ] Add texture atlases?
  [ ] Automatic sprite atlas baking/packing?
  [ ] Draw lists? (load/store actions, render targets, command buffer and post processing)
  [✔] Sprite transforms for rotations/shear/etc
  [✔] Sprite batching that supports multiple textures per draw call
  [✔] Fix sprite batching when there are implicit textures in a material (i.e. slots are relative to material)
  [ ] Swap to WGPU and consider implementing a resource abstraction system (ala jdh)
  [ ] Custom shading language ala GDShader.

Audio:
  [ ] Get audio backend playing simple buffered sounds
  [ ] Support buffered audio
  [ ] Support streaming audio

Scripting:
  [ ] Finish Lox implementation and basic virtual machine
  [ ] Add Lisp implementation and virtual machine
  [ ] Add BASIC implementation and virtual machine, and lots of common operations
  [ ] Consider other languages and ideas
  [ ] Custom scripting language ala GDScript.
  [ ] Time-travelling debugger with snapshots?

Physics:
  [ ] Basic 2d physics
  [ ] Basic 3d physics

Editor:
  [ ] Tauri-based editor with web frontend technologies
  [ ] How to integrate render target output from UI into Tauri/Canvas?
  [ ] Integrate the editor into VSCode and use it to provide basic scene editing/etc?
    [ ] Define the scene file format, and other data structures as well?
    [ ] Consider visual graph models for state machines, behaviour trees, etc
    [ ] Consider visual timeline editor for sprite animations and events?
  [ ] Graph editor for VS Code symlinked into the project folder?

User Interface:
  [ ] `egui` based UI Rust framework?
    [ ] `rsx` style markup for egui function invocations.
    [ ] `redux` style state management in a central store