ecs: add not filter, improve the code for inserting components into entity, bundle cleanup and improvements
This commit is contained in:
parent
01a74ab9a6
commit
4a0d003181
GPG Key ID:
FEC9E2FC15235964
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@ -1,6 +1,6 @@
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use std::{ptr::{NonNull, self}, alloc::{self, Layout, alloc, dealloc}, mem, collections::HashMap, cell::{RefCell, Ref, RefMut, BorrowError, BorrowMutError}, ops::DerefMut};
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use crate::{world::ArchetypeEntityId, bundle::Bundle, component_info::ComponentInfo, DynTypeId, Tick, Entity};
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use crate::{bundle::Bundle, component_info::ComponentInfo, world::ArchetypeEntityId, DynTypeId, Entities, Entity, Record, Tick};
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#[derive(Clone)]
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pub struct ComponentColumn {
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@ -295,21 +295,32 @@ impl Archetype {
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self.capacity = new_cap;
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}
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debug_assert_eq!(self.entity_ids.len(), self.entities.len(), "Somehow the Archetype's entity storage got unsynced");
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self.ensure_synced();
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let entity_index = ArchetypeEntityId(self.entity_ids.len() as u64);
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self.entity_ids.insert(entity, entity_index);
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self.entities.push(entity);
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bundle.take(|data, type_id, _size| {
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let col = self.get_column_mut(type_id).unwrap();
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unsafe { col.insert_entity(entity_index.0 as usize, data, *tick); }
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bundle.take(|data, type_id, info| {
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self.put_component_at(tick, data, type_id, info.layout().size(), entity_index.0 as _);
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});
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entity_index
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}
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/// Removes an entity from the Archetype and frees its components. Returns the entity record
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/// that took its place in the component column.
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pub(crate) fn put_component_at(&mut self, tick: &Tick, ptr: NonNull<u8>, type_id: DynTypeId, size: usize, index: usize) {
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let _ = size;
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let col = self.get_column_mut(type_id).unwrap();
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//unsafe { col.set_at(index, ptr, *tick) };
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unsafe { col.insert_entity(index, ptr, *tick); }
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}
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/// Removes an entity from the Archetype and frees its components.
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///
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/// Inside the component columns, the entities are swap-removed. Meaning that the last
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/// entity in the column is moved in the position of the entity that was removed.
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/// If there was an entity that was swapped, this function returns the entity, and its
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/// new index in the archetype that was put in place of the removed entity.
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pub(crate) fn remove_entity(&mut self, entity: Entity, tick: &Tick) -> Option<(Entity, ArchetypeEntityId)> {
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let entity_index = self.entity_ids.remove(&entity)
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.expect("The entity is not in this Archetype!");
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@ -343,7 +354,7 @@ impl Archetype {
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let removed = self.entities.swap_remove(entity_index.0 as _);
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assert_eq!(removed, entity);
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// now change the ArchetypeEntityId to be the index that the moved entity was moved into.
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removed_entity.map(|(e, _a)| (e, entity_index))
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}
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@ -389,6 +400,11 @@ impl Archetype {
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self.capacity = new_capacity;
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}
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/// Attempts to find the column storing components of `type_id`
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pub fn get_column_at(&self, idx: usize) -> Option<&ComponentColumn> {
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self.columns.get(idx)
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}
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/// Attempts to find the column storing components of `type_id`
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pub fn get_column<I: Into<DynTypeId>>(&self, type_id: I) -> Option<&ComponentColumn> {
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let type_id = type_id.into();
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@ -436,7 +452,7 @@ impl Archetype {
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/// The entity IS NOT removed from the old archetype. You must manually call [`Archetype::remove_entity`](crate::Archetype).
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/// It was done this way because I had some borrow check issues when writing [`World::insert`](crate::World)
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/// related to borrowing mutably from self more than once.
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/* pub fn move_into<B>(&self, into_arch: &mut Archetype, entity: Entity, new_components: B)
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/* pub fn move_into<B>(&mut self, entities: &mut Entities, tick: &Tick, into_arch: &mut Archetype, entity: Entity, new_components: B)
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where
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B: Bundle
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{
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@ -446,25 +462,40 @@ impl Archetype {
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// move the existing components into the new archetype
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for col in self.columns.iter() {
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let into_col = into_arch.get_column_mut(col.info.type_id).unwrap();
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let into_col = into_arch.get_column_mut(col.info.type_id()).unwrap();
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// copy from the old column into the new column, then remove it from the old one
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unsafe {
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let ptr = col.borrow_ptr();
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let ptr = NonNull::new_unchecked(ptr.as_ptr()
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.add(new_index.0 as usize * col.info.layout.size));
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into_col.set_at(new_index.0 as _, ptr);
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.add(new_index.0 as usize * col.info.layout().size()));
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into_col.set_at(new_index.0 as _, ptr, *tick);
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//into_col.set_at(new_index.0 as _, ptr);
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}
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}
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// now move the new components into the new archetype
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new_components.take(|data, type_id, _size| {
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let col = into_arch.get_column_mut(type_id).unwrap();
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unsafe { col.set_at(new_index.0 as _, data); }
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unsafe { col.set_at(new_index.0 as _, data, *tick); }
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col.len += 1;
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});
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//self.remove_entity(entity);
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if let Some((en, new_idx)) = self.remove_entity(entity, tick) {
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let moved_rec = Record {
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id: self.id,
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index: new_idx,
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};
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entities.insert_entity_record(en, moved_rec);
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}
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let new_rec = Record {
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id: into_arch.id,
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index: new_index,
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};
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entities.insert_entity_record(entity, new_rec);
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into_arch.ensure_synced();
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self.ensure_synced();
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} */
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/// Returns a borrow to the map used to find the column indices of the entity.
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@ -700,7 +731,7 @@ mod tests {
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#[test]
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fn dynamic_archetype() {
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let layout = Layout::new::<u32>();
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let info = ComponentInfo::new_unknown(DynTypeId::Unknown(100), "u32", layout);
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let info = ComponentInfo::new_unknown(Some("u32".to_string()), DynTypeId::Unknown(100), layout);
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let infos = vec![info.clone()];
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let mut a = Archetype::from_bundle_info(super::ArchetypeId(0), infos);
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@ -1,4 +1,4 @@
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use std::{ptr::NonNull, mem::size_of, alloc::Layout};
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use std::{ptr::NonNull, alloc::Layout};
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use crate::{component::Component, component_info::ComponentInfo, DynTypeId};
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@ -11,7 +11,7 @@ pub trait Bundle {
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/// Take the bundle by calling the closure with pointers to each component, its type and size.
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/// The closure is expected to take ownership of the pointer.
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fn take(self, f: impl FnMut(NonNull<u8>, DynTypeId, usize));
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fn take(self, f: impl FnMut(NonNull<u8>, DynTypeId, ComponentInfo));
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/// Returns a boolean indicating if this Bundle is dynamic. See [`DynamicBundle`]
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fn is_dynamic(&self) -> bool;
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@ -26,8 +26,8 @@ impl Bundle for () {
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vec![ComponentInfo::new::<()>()]
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}
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fn take(self, mut f: impl FnMut(NonNull<u8>, DynTypeId, usize)) {
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f(NonNull::from(&self).cast(), DynTypeId::of::<()>(), size_of::<()>());
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fn take(self, mut f: impl FnMut(NonNull<u8>, DynTypeId, ComponentInfo)) {
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f(NonNull::from(&self).cast(), DynTypeId::of::<()>(), ComponentInfo::new::<()>());
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}
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fn is_dynamic(&self) -> bool {
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@ -44,8 +44,8 @@ impl<C: Component> Bundle for C {
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vec![ComponentInfo::new::<C>()]
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}
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fn take(self, mut f: impl FnMut(NonNull<u8>, DynTypeId, usize)) {
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f(NonNull::from(&self).cast(), DynTypeId::of::<C>(), size_of::<C>());
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fn take(self, mut f: impl FnMut(NonNull<u8>, DynTypeId, ComponentInfo)) {
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f(NonNull::from(&self).cast(), DynTypeId::of::<C>(), ComponentInfo::new::<C>());
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// this must be done to avoid calling drop on heap memory that the component
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// may manage. So something like a Vec, or HashMap, etc.
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@ -70,12 +70,12 @@ macro_rules! impl_bundle_tuple {
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vec![$(ComponentInfo::new::<$name>()),+]
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}
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fn take(self, mut f: impl FnMut(NonNull<u8>, DynTypeId, usize)) {
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fn take(self, mut f: impl FnMut(NonNull<u8>, DynTypeId, ComponentInfo)) {
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// these names wont follow rust convention, but its a macro so deal with it
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let ($($name,)+) = self;
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$(
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f(NonNull::from(&$name).cast(), DynTypeId::of::<$name>(), size_of::<$name>());
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f(NonNull::from(&$name).cast(), DynTypeId::of::<$name>(), ComponentInfo::new::<$name>());
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// this must be done to avoid calling drop on heap memory that the component
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// may manage. So something like a Vec, or HashMap, etc.
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std::mem::forget($name);
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@ -136,8 +136,6 @@ impl DynamicBundle {
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where
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C: Component
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{
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let info = ComponentInfo::new::<C>();
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// an owned pointer must be created from the provided component since comp would drop
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// out of scope and the data would become invalid
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let ptr = unsafe {
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@ -146,17 +144,43 @@ impl DynamicBundle {
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let layout = Layout::new::<C>();
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let alloc_ptr = NonNull::new_unchecked(std::alloc::alloc(layout)).cast::<C>();
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std::ptr::copy_nonoverlapping(data.as_ptr(), alloc_ptr.as_ptr(), 1);
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// this must be done to avoid calling drop on heap memory that the component
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// may manage. So something like a Vec, or HashMap, etc.
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std::mem::forget(comp);
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alloc_ptr.cast()
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};
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let info = ComponentInfo::new::<C>();
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self.bundle.push((ptr, info));
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}
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/// Push an unknown type to the bundle
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/// Push an unknown type to the end of the bundle.
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pub fn push_unknown(&mut self, data: NonNull<u8>, info: ComponentInfo) {
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self.bundle.push((data, info));
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}
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/// Push a bundle to the end of this dynamic bundle.
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pub fn push_bundle<B>(&mut self, bundle: B)
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where
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B: Bundle
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{
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bundle.take(|ptr, _, info| {
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// unfortunately the components in the bundle must be copied since there is no guarantee that
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// `bundle` lasts for as long as the `DynamicBundle`. If the data wasn't copied, the pointers
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// could be invalid later.
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let p = unsafe {
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let alloc_ptr = NonNull::new_unchecked(std::alloc::alloc(info.layout()));
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std::ptr::copy_nonoverlapping(ptr.as_ptr(), alloc_ptr.as_ptr(), info.layout().size());
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alloc_ptr
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};
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self.push_unknown(p, info);
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});
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}
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}
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impl Bundle for DynamicBundle {
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@ -168,9 +192,9 @@ impl Bundle for DynamicBundle {
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self.bundle.iter().map(|b| b.1).collect()
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}
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fn take(self, mut f: impl FnMut(NonNull<u8>, DynTypeId, usize)) {
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for (data, info) in self.bundle.iter() {
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f(*data, info.type_id(), info.layout().size());
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fn take(self, mut f: impl FnMut(NonNull<u8>, DynTypeId, ComponentInfo)) {
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for (data, info) in self.bundle.into_iter() {
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f(data, info.type_id(), info);
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}
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}
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@ -67,7 +67,7 @@ impl ComponentInfo {
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}
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/// Create ComponentInfo from a type that is not known to rust
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pub fn new_unknown<D>(type_id: D, name: &str, layout: Layout) -> Self
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pub fn new_unknown<D>(name: Option<String>, type_id: D, layout: Layout) -> Self
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where
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D: Into<DynTypeId>,
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{
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@ -11,6 +11,16 @@ pub struct Entity {
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pub(crate) generation: u64,
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}
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impl Entity {
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pub fn id(&self) -> EntityId {
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self.id
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}
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pub fn generation(&self) -> u64 {
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self.generation
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}
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}
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pub struct Entities {
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pub(crate) arch_index: HashMap<EntityId, Record>,
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dead: VecDeque<Entity>,
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@ -111,7 +111,7 @@ mod tests {
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#[test]
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fn single_dynamic_view() {
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let comp_layout = Layout::new::<u32>();
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let comp_info = ComponentInfo::new_unknown(DynTypeId::Unknown(100), "u32", comp_layout);
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let comp_info = ComponentInfo::new_unknown(Some("u32".to_string()), DynTypeId::Unknown(100), comp_layout);
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let mut dynamic_bundle = DynamicBundle::default();
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let comp = 50u32;
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@ -2,4 +2,7 @@ pub mod has_component;
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pub use has_component::*;
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pub mod or;
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pub use or::*;
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pub use or::*;
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pub mod not;
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pub use not::*;
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@ -0,0 +1,45 @@
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use std::marker::PhantomData;
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use crate::{query::{AsQuery, Query}, Archetype, World};
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#[derive(Default)]
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pub struct Not<Q: Query> {
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q: Q,
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_marker: PhantomData<Q>
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}
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impl<Q: Query> Copy for Not<Q> {}
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impl<Q: Query> Clone for Not<Q> {
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fn clone(&self) -> Self {
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Self {
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q: self.q.clone(),
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_marker: self._marker.clone()
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}
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}
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}
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impl<Q: Query> Query for Not<Q> {
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type Item<'a> = ();
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type Fetch<'a> = ();
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fn new() -> Self {
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Not {
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q: Q::new(),
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_marker: PhantomData
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}
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}
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fn can_visit_archetype(&self, archetype: &Archetype) -> bool {
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!self.q.can_visit_archetype(archetype)
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}
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unsafe fn fetch<'a>(&self, _world: &'a World, _: &'a Archetype, _: crate::Tick) -> Self::Fetch<'a> {
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()
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}
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}
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impl<Q: Query> AsQuery for Not<Q> {
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type Query = Self;
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}
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@ -2,7 +2,7 @@ use std::{any::TypeId, collections::HashMap, ptr::NonNull};
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use atomic_refcell::{AtomicRef, AtomicRefMut};
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use crate::{archetype::{Archetype, ArchetypeId}, bundle::Bundle, query::{dynamic::DynamicView, AsQuery, Query, ViewState, ViewIter, ViewOne}, resource::ResourceData, ComponentInfo, DynTypeId, Entities, Entity, ResourceObject, Tick, TickTracker};
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use crate::{archetype::{Archetype, ArchetypeId}, bundle::Bundle, query::{dynamic::DynamicView, AsQuery, Query, ViewIter, ViewOne, ViewState}, resource::ResourceData, ComponentInfo, DynTypeId, DynamicBundle, Entities, Entity, ResourceObject, Tick, TickTracker};
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/// The id of the entity for the Archetype.
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///
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@ -144,37 +144,32 @@ impl World {
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let current_arch = self.archetypes.get(&record.id).unwrap();
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let current_arch_len = current_arch.len();
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let mut col_types: Vec<DynTypeId> = current_arch.columns.iter().map(|c| c.info.type_id()).collect();
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let orig_col = col_types.clone();
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col_types.extend(bundle.type_ids());
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// contains the type ids for the old component columns + the ids for the new components
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let mut combined_column_types: Vec<DynTypeId> = current_arch.columns.iter().map(|c| c.info.type_id()).collect();
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combined_column_types.extend(bundle.type_ids());
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let mut col_infos: Vec<ComponentInfo> = current_arch.columns.iter().map(|c| c.info).collect();
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col_infos.extend(bundle.info());
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// contains the ComponentInfo for the old component columns + the info for the new components
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let mut combined_column_infos: Vec<ComponentInfo> = current_arch.columns.iter().map(|c| c.info).collect();
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combined_column_infos.extend(bundle.info());
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let col_ptrs: Vec<(NonNull<u8>, ComponentInfo)> = current_arch.columns.iter()
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// pointers only for the old columns
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let old_columns: Vec<(NonNull<u8>, ComponentInfo)> = current_arch.columns.iter()
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.map(|c| unsafe { (NonNull::new_unchecked(c.borrow_ptr().as_ptr()), c.info) })
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.collect();
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if let Some(arch) = self.archetypes.values_mut().find(|a| a.is_archetype_for(&col_types)) {
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let res_index = arch.reserve_one(entity);
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for (col_type, (col_ptr, col_info)) in orig_col.into_iter().zip(col_ptrs.into_iter()) {
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if let Some(arch) = self.archetypes.values_mut().find(|a| a.is_archetype_for(&combined_column_types)) {
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let mut dbun = DynamicBundle::new();
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// move old entity components into new archetype columns
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for (col_ptr, col_info) in old_columns.into_iter() {
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unsafe {
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let ptr = NonNull::new_unchecked(col_ptr.as_ptr()
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.add(record.index.0 as usize * col_info.layout().size()));
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let col = arch.get_column_mut(col_type).unwrap();
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// set_at is used since the entity was reserved
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col.set_at(res_index.0 as _, ptr, tick);
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dbun.push_unknown(ptr, col_info);
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}
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}
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dbun.push_bundle(bundle);
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bundle.take(|data, type_id, _size| {
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let col = arch.get_column_mut(type_id).unwrap();
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// set_at is used since the entity was reserved
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unsafe { col.set_at(res_index.0 as _, data, tick); }
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});
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arch.entity_ids.insert(entity, res_index);
|
||||
let res_index = arch.add_entity(entity, dbun, &tick);
|
||||
arch.ensure_synced();
|
||||
|
||||
let new_record = Record {
|
||||
|
|
@ -187,25 +182,24 @@ impl World {
|
|||
// if this entity is the only entity for this archetype, add more columns to it
|
||||
let current_arch = self.archetypes.get_mut(&record.id).unwrap();
|
||||
current_arch.extend(&tick, vec![bundle]);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
let new_arch_id = self.next_archetype_id.increment();
|
||||
let mut archetype = Archetype::from_bundle_info(new_arch_id, col_infos);
|
||||
let entity_arch_id = archetype.add_entity(entity, bundle, &tick);
|
||||
let mut archetype = Archetype::from_bundle_info(new_arch_id, combined_column_infos);
|
||||
|
||||
// move the old components into the new archetype
|
||||
for (column_ptr, column_info) in col_ptrs.into_iter() {
|
||||
let mut dbun = DynamicBundle::new();
|
||||
for (column_ptr, column_info) in old_columns.into_iter() {
|
||||
unsafe {
|
||||
// ptr of component for the entity
|
||||
let comp_ptr = NonNull::new_unchecked(column_ptr.as_ptr()
|
||||
.add(record.index.0 as usize * column_info.layout().size()));
|
||||
|
||||
let col = archetype.get_column_mut(column_info.type_id()).unwrap();
|
||||
col.insert_entity(entity_arch_id.0 as _, comp_ptr, tick);
|
||||
dbun.push_unknown(comp_ptr, column_info);
|
||||
}
|
||||
}
|
||||
dbun.push_bundle(bundle);
|
||||
|
||||
let entity_arch_id = archetype.add_entity(entity, dbun, &tick);
|
||||
|
||||
self.archetypes.insert(new_arch_id, archetype);
|
||||
|
||||
|
|
@ -219,12 +213,103 @@ impl World {
|
|||
}
|
||||
|
||||
let current_arch = self.archetypes.get_mut(&record.id).unwrap();
|
||||
if current_arch.len() > 1 {
|
||||
current_arch.remove_entity(entity, &tick);
|
||||
} else if current_arch.len() == 1 {
|
||||
// The old archetype will only be removed if there was another archetype that would
|
||||
// work for the entity's components, and the old archetype only had a single entity.
|
||||
self.archetypes.remove(&record.id).unwrap();
|
||||
if let Some((en, enar)) = current_arch.remove_entity(entity, &tick) {
|
||||
let rec = Record {
|
||||
id: current_arch.id(),
|
||||
index: enar
|
||||
};
|
||||
self.entities.insert_entity_record(en, rec);
|
||||
}
|
||||
|
||||
current_arch.ensure_synced();
|
||||
}
|
||||
|
||||
/// A method used for debugging implementation details of the ECS.
|
||||
///
|
||||
/// Here's an example of the output:
|
||||
/// ```
|
||||
/// Entities
|
||||
/// 1 in archetype 0 at 0
|
||||
/// 0 in archetype 1 at 0
|
||||
/// 2 in archetype 0 at 1
|
||||
/// 3 in archetype 2 at 0
|
||||
/// Arch 1 -- 1 entities
|
||||
/// Col 175564825027445222460146453544114453753
|
||||
/// 0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 128 63 0 0 128 63 0 0 128 63 0 0 128 63 78 86 0 0
|
||||
/// Col 162279302565774655543278578489329315472
|
||||
/// 0: 0 0 32 65 0 0 32 65 0 0 32 65 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 128 63 0 0 128 63 0 0 128 63 0 0 128 63 0 0 0 0
|
||||
/// Col 24291284537013640759061027938209843602
|
||||
/// 0: 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
|
||||
/// Arch 2 -- 1 entities
|
||||
/// Col 175564825027445222460146453544114453753
|
||||
/// 0: 0 0 0 0 0 0 0 0 0 0 0 0 237 127 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 128 63 0 0 128 63 0 0 128 63 0 0 128 63 78 86 0 0
|
||||
/// Col 162279302565774655543278578489329315472
|
||||
/// 0: 0 0 76 66 0 0 170 66 0 0 136 65 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 128 63 0 0 128 63 0 0 128 63 0 0 128 63 0 0 0 0
|
||||
/// Col 142862377085187052737282554588643015580
|
||||
/// 0: 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
|
||||
/// Arch 0 -- 2 entities
|
||||
/// Col 175564825027445222460146453544114453753
|
||||
/// 0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 32 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 128 63 0 0 128 63 0 0 128 63 0 0 128 63 0 0 0 0
|
||||
/// 1: 0 0 0 0 0 0 0 0 0 0 0 0 237 127 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 128 63 0 0 128 63 0 0 128 63 0 0 128 63 78 86 0 0
|
||||
/// Col 162279302565774655543278578489329315472
|
||||
/// 0: 0 0 112 65 0 0 112 65 0 0 112 65 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 128 63 0 0 128 63 0 0 128 63 0 0 128 63 0 0 0 0
|
||||
/// 1: 0 0 27 67 0 0 184 65 0 0 192 64 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 128 63 0 0 128 63 0 0 128 63 0 0 128 63 0 0 0 0
|
||||
/// Col 142862377085187052737282554588643015580
|
||||
/// 0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
|
||||
/// 1: 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
|
||||
/// Col 24291284537013640759061027938209843602
|
||||
/// 0: 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
|
||||
/// 1: 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
|
||||
/// Arch 3 -- 0 entities
|
||||
/// Col 175564825027445222460146453544114453753
|
||||
/// Col 162279302565774655543278578489329315472
|
||||
/// ```
|
||||
///
|
||||
/// This output prints all Entity ids, the archetype they're in, and the index that they're
|
||||
/// in inside of the archetype. Additionally, the archetypes are printing, including their
|
||||
/// columns type ids, and the contents of the type ids. This output can be used to debug
|
||||
/// the contents of entities inside the archetypes.
|
||||
///
|
||||
/// Below is a template of the output:
|
||||
/// ```
|
||||
/// Entities
|
||||
/// %ENTITY_ID% in archetype %ARCHETYPE_ID% at %INDEX%
|
||||
/// Arch ID -- %ARCHETYPE_LEN% entities
|
||||
/// %FOR EACH COL%
|
||||
/// Col COLUMN_COMPONENT_TYPE_ID
|
||||
/// %FOR EACH ENTITY%
|
||||
/// %ENTITY_INDEX%: %COMPONENT_BYTES%
|
||||
/// ```
|
||||
/// If the template above doesn't help you in understanding the output, read the source code
|
||||
/// of the function. The source code is pretty simple.
|
||||
pub fn debug_print_world(&self) {
|
||||
println!("Entities");
|
||||
for (en, rec) in &self.entities.arch_index {
|
||||
println!(" {} in archetype {} at {}", en.0, rec.id.0, rec.index.0);
|
||||
}
|
||||
|
||||
for arch in self.archetypes.values() {
|
||||
println!("Arch {} -- {} entities", arch.id().0, arch.len());
|
||||
|
||||
for col in &arch.columns {
|
||||
// no clue if doing this is stable, but this is a debug function so :shrug:
|
||||
let tyid: u128 = unsafe { std::mem::transmute(col.info.type_id().as_rust()) };
|
||||
println!(" Col {}", tyid);
|
||||
|
||||
for en in 0..col.len {
|
||||
// get the ptr starting at the component
|
||||
let p = col.borrow_ptr();
|
||||
let p = unsafe { p.as_ptr().add(en * col.info.layout().size()) };
|
||||
|
||||
print!(" {}: ", en);
|
||||
// print each byte of the component
|
||||
for i in 0..col.info.layout().size() {
|
||||
let d = unsafe { *p.add(i) };
|
||||
print!("{} ", d);
|
||||
}
|
||||
println!();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -364,6 +449,10 @@ impl World {
|
|||
self.resources.get(&TypeId::of::<T>())
|
||||
.map(|d| unsafe { NonNull::new_unchecked(d.data.as_ptr() as *mut T) })
|
||||
}
|
||||
|
||||
pub fn archetype_count(&self) -> usize {
|
||||
self.archetypes.len()
|
||||
}
|
||||
}
|
||||
|
||||
// TODO: Ensure that all non-send resources are only accessible on the main thread.
|
||||
|
|
|
|||
Loading…
Reference in New Issue