Spawning particle effect in PostUpdate crashes

[barsoosayque]

Crate versions bevy version: 0.14.1 bevy_hanabi version: 0.12.2

Describe the bug Spawning a new entity with ParticleEffect component in PostUpdate schedule results in unwrap:

thread 'Compute Task Pool (1)' panicked at /<...>/.cargo/registry/src/index.crates.io-6f17d22bba15001f/bevy_hanabi-0.12.2/src/render/mod.rs:2107:59:
called `Option::unwrap()` on a `None` value

Expected behavior I would expect any schedule to be valid for spawning particle effects.

To Reproduce Here is a diff for examples/spawn_on_command to reproduce this crash:

Diff

```diff diff --git a/examples/spawn_on_command.rs b/examples/spawn_on_command.rs index 7b4c0b5..42f324b 100644 --- a/examples/spawn_on_command.rs +++ b/examples/spawn_on_command.rs @@ -56,12 +56,15 @@ fn main() -> Result<(), Box> { app.add_plugins(WorldInspectorPlugin::default()); app.add_systems(Startup, setup) - .add_systems(Update, (utils::close_on_esc, update)) + .add_systems(PostUpdate, (utils::close_on_esc, update)) .run(); Ok(()) } +#[derive(Resource)] +struct Storage(Handle); + #[derive(Component)] struct Ball { velocity: Vec2, @@ -119,7 +122,7 @@ fn setup( .insert(Name::new("ball")); // Set `spawn_immediately` to false to spawn on command with Spawner::reset() - let spawner = Spawner::once(100.0.into(), false); + let spawner = Spawner::once(100.0.into(), true); let writer = ExprWriter::new(); @@ -186,24 +189,17 @@ fn setup( .render(ScreenSpaceSizeModifier), ); - commands - .spawn(ParticleEffectBundle::new(effect)) - .insert(Name::new("effect")); + commands.insert_resource(Storage(effect)); } fn update( + mut commands: Commands, + storage: Res, mut balls: Query<(&mut Ball, &mut Transform)>, - mut effect: Query<(&mut EffectProperties, &mut EffectSpawner, &mut Transform), Without>, time: Res, ) { const HALF_SIZE: f32 = BOX_SIZE / 2.0 - BALL_RADIUS; - // Note: On first frame where the effect spawns, EffectSpawner is spawned during - // PostUpdate, so will not be available yet. Ignore for a frame if so. - let Ok((mut properties, mut spawner, mut effect_transform)) = effect.get_single_mut() else { - return; - }; - for (mut ball, mut transform) in balls.iter_mut() { let mut pos = transform.translation.xy() + ball.velocity * time.delta_seconds(); let mut collision = false; @@ -231,9 +227,7 @@ fn update( transform.translation = pos.extend(transform.translation.z); if collision { - // This isn't the most accurate place to spawn the particle effect, - // but this is just for demonstration, so whatever. - effect_transform.translation = transform.translation; + let mut properties = EffectProperties::default(); // Pick a random particle color let r = rand::random::(); @@ -248,7 +242,14 @@ fn update( properties.set("normal", normal.extend(0.).into()); // Spawn the particles - spawner.reset(); + commands + .spawn(ParticleEffectBundle { + effect: ParticleEffect::new(storage.0.clone()), + effect_properties: properties, + transform: transform.clone(), + ..default() + }) + .insert(Name::new("effect")); } } } ```