You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
51 lines
1.4 KiB
Rust
51 lines
1.4 KiB
Rust
use super::*;
|
|
|
|
/// Scheduling condition for determining if a component has been added
|
|
pub fn any_component_added<T: Component>(q: Query<Entity, Added<T>>) -> bool {
|
|
!q.is_empty()
|
|
}
|
|
|
|
/// Scheduling condition for determining if a component has been changed
|
|
pub fn any_component_changed<T: Component>(q: Query<Entity, Changed<T>>) -> bool {
|
|
!q.is_empty()
|
|
}
|
|
|
|
/// Scheduling condition to trigger a system when a specific key is pressed
|
|
pub fn on_keyboard_press(key: KeyCode) -> impl FnMut(Res<ButtonInput<KeyCode>>) -> bool {
|
|
move |keys: Res<ButtonInput<KeyCode>>| keys.just_pressed(key)
|
|
}
|
|
|
|
/*
|
|
/// TODO: Make these work:
|
|
|
|
use bevy::ecs::query::{ArchetypeFilter, QueryData, QueryFilter};
|
|
|
|
pub fn filter_contains_exactly<F>(n: usize) -> impl FnMut(Query<Entity, F>) -> bool
|
|
where
|
|
F: QueryFilter + ArchetypeFilter
|
|
{
|
|
move |q: Query<Entity, F>| q.iter().len() == n
|
|
}
|
|
|
|
pub fn filter_contains_at_least<F>(n: usize) -> impl FnMut(Query<Entity, F>) -> bool
|
|
where
|
|
F: QueryFilter + ArchetypeFilter
|
|
{
|
|
move |q: Query<Entity, F>| q.iter().len() >= n
|
|
}
|
|
|
|
pub fn filter_contains_at_most<F>(n: usize) -> impl FnMut(Query<Entity, F>) -> bool
|
|
where
|
|
F: QueryFilter + ArchetypeFilter
|
|
{
|
|
move |q: Query<Entity, F>| q.iter().len() <= n
|
|
}
|
|
|
|
pub fn filter_is_empty<F>() -> impl FnMut(Query<Entity, F>) -> bool
|
|
where
|
|
F: QueryFilter + ArchetypeFilter
|
|
{
|
|
move |q: Query<Entity, F>| q.iter().len() == 0
|
|
}
|
|
*/
|