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feat: added delete_entities_with, foreach and has to the Scene and interface of App

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lisk77 2025-03-12 08:18:24 +01:00
parent 1ae32c7384
commit e1906371be
2 changed files with 37 additions and 99 deletions
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25
crates/comet_ecs/src/scene.rs
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@ -200,6 +200,10 @@ impl Scene {
self.components.get_component_mut::<C>(entity_id)
}
pub fn has<C: Component + 'static>(&self, entity_id: usize) -> bool {
self.components.get_component::<C>(entity_id).is_some()
}
/// Returns a list of entities that have the given components.
pub fn get_entities_with(&self, components: ComponentSet) -> Vec<usize> {
if self.archetypes.contains_archetype(&components) {
@ -208,4 +212,25 @@ impl Scene {
error!("The given components {:?} are not registered in the scene!", components);
Vec::new()
}
/// Deletes all entities that have the given components.
pub fn delete_entities_with(&mut self, components: ComponentSet) {
let entities = self.get_entities_with(components);
for entity in entities {
self.delete_entity(entity);
}
}
/// Iterates over all entities that have the given components and calls the given function.
pub fn foreach<C: Component, K: Component>(&mut self, func: fn(&mut C,&mut K)) {
let entities = self.get_entities_with(ComponentSet::from_ids(vec![C::type_id(), K::type_id()]));
for entity in entities {
let c_ptr = self.get_component_mut::<C>(entity).unwrap() as *mut C;
let k_ptr = self.get_component_mut::<K>(entity).unwrap() as *mut K;
unsafe {
func(&mut *c_ptr, &mut *k_ptr);
}
}
}
}