Voile/TODO.md

Voile MVP

Bugfixes

• ActionJustPressed and KeyboardKeyJustPressed don't detect inputs consistently.
  • Solution: This is a problem related to custom frame pacing for fixed timestep. Raylib polls input in BeginFrame, which means certain functions related to JustPressed* may work incorrectly when polled in a separate timestep. This can be fixed if the entire input system will be moved to SDL or with a custom render + input backend altogether.
• Fix any remaining bugs with anchor positioning system.
  • Containers don't position their chilren correctly when using anchors and adding/removing them.

Core

• Add and implement interfaces for systems (ISystem, IUpdatableSystem, etc.)
• Minimize amount of possible null references.
• TextDataResource providing a convenient wrapper around TOML data files.
• Add documentation for common classes.
• Hot reloading of resources.
• Separate render and update thread.

I/O

• Use GUIDs and string ID maps for fetching resources instead of string IDs alone.
• Reimplement unloading.
• Finalize ResourceManager and ResourceLoader APIs for 1.0.
• Add async API for ResourceManager.
• Virtual file system.
• Custom PAK format using the VFS implementation.
• (stretch goal) Streamed resource loading.

Serialization

• Serialize attribute.
• Add automatic serialization of resources through source generation and System.Text.Json.
  • Make sure this serialization system works well with CLR and NativeAOT.
• Provide means for fetching key/value configuration (INI? TOML?)
  • Expose some sort of ConfigFile class for safe key/value configuration fetching.

Rendering

• API for drawing textured quads
• Camera API
• Arbitrary mesh rendering API.
• Create WebGPU renderer (StandardRenderSystem)

Audio

• Use SoLoud as a default sound engine.
• Integrate FMOD.

Misc

• Asset manager
• Separate engine and game into separate projects
• Particle system 2.0
  • Reduce the size of Particle struct by infering most parameters through lifetime.
  • Reduce cache misses by utilizing SoA.
  • SIMD acceleration.
  • Creating and removing emitters.

SceneGraph module

• Full overhaul using Entity Component architecture (not to be mistaken with ECS).
• Layers (sorting mechanism)
• Save/load scenes from file

Input

• Action system
• Nicer input mapping API using code.
• Make action system use an InputMap resource instead.
• Gamepad support

UI

• Layout
  • Containers
    • VerticalContainer
    • HorizontalContainer
    • GridContainer
    • FlexContainer
  • Positioning (anchors)
• Move layouting to Render instead of Update, use Update for input.
• Input propagation
• Basic input elements (button, text field, toggle).
• Styling.