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Optimize Nexus storage

This commit is contained in:
Christian Treffs 2019-08-20 17:00:56 +02:00
parent d68b935e2e
commit b692d5de92
1 changed files with 20 additions and 16 deletions
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36
Sources/FirebladeECS/Nexus.swift
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@ -5,25 +5,29 @@
// Created by Christian Treffs on 09.10.17.
//
public class Nexus {
public weak var delegate: NexusEventDelegate?
public final class Nexus {
public final weak var delegate: NexusEventDelegate?
/// - Index: index value matching entity identifier shifted to Int
/// - Value: each element is a entity instance
@usableFromInline var entityStorage: UnorderedSparseSet<Entity>
/// Main entity storage.
/// Entities are tightly packed by EntityIdentifier.
@usableFromInline final var entityStorage: UnorderedSparseSet<Entity>
/// - Key: component type identifier
/// - Value: each element is a component instance of the same type (uniform). New component instances are appended.
@usableFromInline internal var componentsByType: [ComponentIdentifier: ManagedContiguousArray<Component>]
/// - Key: ComponentIdentifier aka component type.
/// - Value: Array of component instances of same type (uniform).
/// New component instances are appended.
@usableFromInline final var componentsByType: [ComponentIdentifier: ManagedContiguousArray<Component>]
/// - Key: entity id as index
/// - Value: each element is a component identifier associated with this entity
@usableFromInline internal var componentIdsByEntity: [EntityIdentifier: Set<ComponentIdentifier>]
/// - Key: EntityIdentifier aka entity index
/// - Value: Set of unique component types (ComponentIdentifier).
/// Each element is a component identifier associated with this entity.
@usableFromInline final var componentIdsByEntity: [EntityIdentifier: Set<ComponentIdentifier>]
/// - Values: entity ids that are currently not used
@usableFromInline internal var freeEntities: ContiguousArray<EntityIdentifier>
/// Entity ids that are currently not used.
@usableFromInline final var freeEntities: ContiguousArray<EntityIdentifier>
@usableFromInline internal var familyMembersByTraits: [FamilyTraitSet: UnorderedSparseSet<EntityIdentifier>]
/// - Key: FamilyTraitSet aka component types that make up one distinct family.
/// - Value: Tightly packed EntityIdentifiers that represent the association of an entity to the family.
@usableFromInline final var familyMembersByTraits: [FamilyTraitSet: UnorderedSparseSet<EntityIdentifier>]
public init() {
entityStorage = UnorderedSparseSet<Entity>()
@ -60,7 +64,7 @@ public class Nexus {
// MARK: - Equatable
extension Nexus: Equatable {
public static func == (lhs: Nexus, rhs: Nexus) -> Bool {
@inlinable public static func == (lhs: Nexus, rhs: Nexus) -> Bool {
return lhs.entityStorage == rhs.entityStorage &&
lhs.componentIdsByEntity == rhs.componentIdsByEntity &&
lhs.freeEntities == rhs.freeEntities &&
@ -84,6 +88,6 @@ extension Nexus {
// MARK: - CustomDebugStringConvertible
extension Nexus: CustomDebugStringConvertible {
public var debugDescription: String {
return "Nexus<Entities:\(numEntities) Components:\(numComponents) Families:\(numFamilies)>"
return "<Nexus entities:\(numEntities) components:\(numComponents) families:\(numFamilies)>"
}
}