fn update_idle_grenades(
commands: Commands<'_>,
entities: Res<'_, Entities>,
items_used: Comp<'_, ItemUsed>,
element_handles: Comp<'_, ElementHandle>,
assets: Res<'_, AssetServer>,
audio_center: ResMut<'_, AudioCenter>,
idle_grenades: CompMut<'_, IdleGrenade>,
animated_sprites: CompMut<'_, AnimatedSprite>,
)