beet_flow

Beet Flow is an ECS control flow library, built with Bevy Observers. Being ECS first gives Beet a level of flexibility and modularity not usually found in control flow libraries.

Currently implemented paradigms:

• Behavior Trees
• Long Running
• State Machines
• Utility AI

Hello World

A demonstration of a Sequence control flow common in behavior trees

Using BeetDebugPlugin will log the name of each action as it is triggered.

use bevy::prelude::*;
use beet_flow::prelude::*;
let mut app = App::new();
app
	.add_plugins((
		BeetFlowPlugin::default(),
		BeetDebugPlugin::default()
	))
	.world_mut()
  .spawn((
		Name::new("My Behavior"), 
		Sequence
	))
		.with_child((
			Name::new("Hello"),
			ReturnWith(RunResult::Success),
		))
		.with_child((
			Name::new("World"),
			ReturnWith(RunResult::Success),
		))
		.trigger(OnRun::local());
app.world_mut().flush();

TODO

• When we get OnMutate observers, they should probably replace most OnInsert observers we're using