[Feature] Create an App API that's basically a complete rip-off of Bevy

[kanerogers]

Background

The Hotham API is kind of unpleasant to deal with.

This could make it a lot nicer.

pub struct GameState {
  splines: usize;
}

/// Called **once** before your game starts.
pub fn init_game(engine: &mut Engine, world: &mut World) -> GameState {
  // Import models, load scene, etc.
  GameState {
   splines: 0
  }
}

/// Called each frame, **after** input has been collected and the physics simulation has run, but **before** rendering occurs.
/// All Android and XR lifecycle, etc. will be handled for you.
pub fn game_system(engine: &mut Engine, world: &mut World, game_state: &mut GameState) {
  // Update the game simulation.
  game_state.splines += 1;
}

pub fn main() {
  App::builder().add_init(init_game).add_system(game_system).run();
}

[kanerogers]

I've been thinking about this a little more. On reflection it might not actually be so bad to have the user's game code drive the while loop.