lisk77/comet
1
0
Fork 0
mirror of https://github.com/lisk77/comet.git synced 2025-10-23 21:38:50 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

feat(ecs): limited the creation of archetypes to three unique components to lower the creation to polynomial complexity

Browse source
This commit is contained in:
lisk77 2025-07-26 01:13:23 +02:00
parent 0da5200916
commit d04c706a94
5 changed files with 409 additions and 421 deletions
Download patch file Download diff file Expand all files Collapse all files

30
crates/comet_ecs/src/scene.rs
View file

@ -215,16 +215,14 @@ impl Scene {
self.create_archetype(new_component_set.clone());
}
let powerset = ComponentSet::powerset(new_component_set.to_vec());
let subsets = ComponentSet::compute_subsets_up_to_size_3(new_component_set.to_vec());
for subset in powerset {
let component_set = ComponentSet::from_ids(subset.iter().cloned().collect());
if !self.archetypes.contains_archetype(&component_set) {
self.create_archetype(component_set.clone());
for subset in subsets {
if !self.archetypes.contains_archetype(&subset) {
self.create_archetype(subset.clone());
}
self.add_entity_to_archetype(entity_id as u32, component_set);
self.add_entity_to_archetype(entity_id as u32, subset);
}
info!(
@ -256,16 +254,14 @@ impl Scene {
self.create_archetype(new_component_set.clone());
}
let powerset = ComponentSet::powerset(new_component_set.to_vec());
let subsets = ComponentSet::compute_subsets_up_to_size_3(new_component_set.to_vec());
for subset in powerset {
let component_set = ComponentSet::from_ids(subset.iter().cloned().collect());
if !self.archetypes.contains_archetype(&component_set) {
self.create_archetype(component_set.clone());
for subset in subsets {
if !self.archetypes.contains_archetype(&subset) {
self.create_archetype(subset.clone());
}
self.add_entity_to_archetype(entity_id as u32, component_set);
self.add_entity_to_archetype(entity_id as u32, subset);
}
}
@ -295,6 +291,10 @@ impl Scene {
/// Returns a list of entities that have the given components.
pub fn get_entities_with(&self, components: Vec<TypeId>) -> Vec<usize> {
let component_set = ComponentSet::from_ids(components);
if component_set.size() > 3 {
error!("An entity query should only contain at most 3 different components!");
return Vec::new();
}
if self.archetypes.contains_archetype(&component_set) {
return self
.archetypes
@ -316,7 +316,7 @@ impl Scene {
}
}
/// Iterates over all entities that have the given components and calls the given function.
/// Iterates over all entities that have the two 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(vec![C::type_id(), K::type_id()]);
for entity in entities {