Bevy Simple State Machine

Plugin for the Bevy Engine which implements a rudimentary animation state machine system.

To use this, you have to add the SimpleStateMachinePlugin to you app:

rust App::new() .add_plugins(DefaultPlugins) .add_plugin(SimpleStateMachinePlugin::new());

And then insert an AnimationStateMachine component on your entities:

```rust fn setup(mut commands: Commands) { let startingstate = "idle"; let mystatesmap = HashMap::from([ ("idle".tostring(), AnimationState{ name: "idle".tostring(), clip: idlecliphandle, interruptible: true, }), ("run".tostring(), AnimationState{ name: "run".tostring(), clip: runcliphandle, interruptible: true, }), ]); let mystatestransitionsvec = vec![ StateMachineTransition { startstate: AnimationStateRef::fromstring("idle"), endstate: AnimationStateRef::fromstring("run"), trigger: StateMachineTrigger::from(|vars| vars["run"].isbool(true)), }]; let statemachinevars = HashMap::from([ ("run".tostring(), StateMachineVariableType::Bool(false)),
]);

commands.spawn_bundle(SpatialBundle::default())
    .insert(AnimationPlayer::default())
    .insert(AnimationStateMachine::new(
        starting_state,
        my_states_map,
        my_states_transitions_vec,
        state_machine_vars,
    ));

} ```

And then you can control it changing the values of the state machine variables

rust state_machine.update_variable("run", StateMachineVariableType::Bool(true));

Currently supported features:

• Custom transition conditions
• Transitions from wildcard state AnyState
• Events emitted on transition end
• Internal state machine variables

Currently, transitions end on the same frame they are triggered.

Animation blending and transition duration are not implemented.

Bevy Compatibility:

| Bevy Version | Plugin Version | |--------------|----------------------| | 0.9 | main | | 0.9 | 0.2.0 | | 0.8 | 0.1.0 |