shipyard 0.5.0

Entity Component System
Documentation 
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mod inserted;
mod inserted_or_modified;
mod modified;
mod not;

use super::abstract_mut::AbstractMut;
use crate::entity_id::EntityId;
use crate::sparse_set::{FullRawWindowMut, SparseSet};
use crate::sparse_set::{SparseArray, BUCKET_SIZE};
use crate::type_id::TypeId;
use crate::view::{View, ViewMut};

// Allows to make ViewMut's sparse and dense fields immutable
// This is necessary to index into them
#[doc(hidden)]
#[allow(clippy::len_without_is_empty)]
pub trait IntoAbstract {
    type AbsView: AbstractMut;
    type Pack;

    fn into_abstract(self) -> Self::AbsView;
    fn len(&self) -> Option<(usize, bool)>;
    fn is_tracking_insertion(&self) -> bool;
    fn is_tracking_modification(&self) -> bool;
    fn type_id(&self) -> TypeId;
    fn dense(&self) -> *const EntityId;
    #[inline]
    fn sparse(&self) -> *const SparseArray<[EntityId; BUCKET_SIZE]> {
        core::ptr::null()
    }
}

impl<'a, T: 'static> IntoAbstract for &'a View<'_, T> {
    type AbsView = &'a SparseSet<T>;
    type Pack = T;

    #[inline]
    fn into_abstract(self) -> Self::AbsView {
        &self
    }
    #[inline]
    fn len(&self) -> Option<(usize, bool)> {
        Some(((**self).len(), true))
    }
    fn is_tracking_insertion(&self) -> bool {
        SparseSet::is_tracking_insertion(&self)
    }
    fn is_tracking_modification(&self) -> bool {
        SparseSet::is_tracking_modification(&self)
    }
    #[inline]
    fn type_id(&self) -> TypeId {
        TypeId::of::<SparseSet<T>>()
    }
    #[inline]
    fn dense(&self) -> *const EntityId {
        self.dense.as_ptr()
    }
}

impl<'a: 'b, 'b, T: 'static> IntoAbstract for &'b ViewMut<'a, T> {
    type AbsView = &'b SparseSet<T>;
    type Pack = T;

    #[inline]
    fn into_abstract(self) -> Self::AbsView {
        &self
    }
    #[inline]
    fn len(&self) -> Option<(usize, bool)> {
        Some(((**self).len(), true))
    }
    fn is_tracking_insertion(&self) -> bool {
        SparseSet::is_tracking_insertion(&self)
    }
    fn is_tracking_modification(&self) -> bool {
        SparseSet::is_tracking_modification(&self)
    }
    #[inline]
    fn type_id(&self) -> TypeId {
        TypeId::of::<SparseSet<T>>()
    }
    #[inline]
    fn dense(&self) -> *const EntityId {
        self.dense.as_ptr()
    }
}

impl<'a: 'b, 'b, T: 'static> IntoAbstract for &'b mut ViewMut<'a, T> {
    type AbsView = FullRawWindowMut<'b, T>;
    type Pack = T;

    #[inline]
    fn into_abstract(self) -> Self::AbsView {
        self.full_raw_window_mut()
    }
    #[inline]
    fn len(&self) -> Option<(usize, bool)> {
        Some(((**self).len(), true))
    }
    fn is_tracking_insertion(&self) -> bool {
        SparseSet::is_tracking_insertion(&self)
    }
    fn is_tracking_modification(&self) -> bool {
        SparseSet::is_tracking_modification(&self)
    }
    #[inline]
    fn type_id(&self) -> TypeId {
        TypeId::of::<SparseSet<T>>()
    }
    #[inline]
    fn dense(&self) -> *const EntityId {
        self.dense.as_ptr()
    }
}