73 lines
2.4 KiB
Swift
73 lines
2.4 KiB
Swift
//
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// Nexus.swift
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// FirebladeECS
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//
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// Created by Christian Treffs on 09.10.17.
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//
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/// entity id ^ component identifier hash
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public typealias EntityComponentHash = Int
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public typealias ComponentIdsByEntityIndex = Int
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public typealias ComponentTypeHash = Int // component object identifier hash value
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public typealias UniformComponents = ContiguousComponentArray
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public typealias ComponentIdentifiers = ContiguousArray<ComponentIdentifier>
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public typealias ComponentSet = Set<ComponentIdentifier>
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public typealias Entities = ContiguousArray<Entity>
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public typealias EntityIdSet = Set<EntityIdentifier>
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public typealias FamilyTraitSetHash = Int
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public typealias TraitEntityIdHash = Int
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public typealias EntityIdInFamilyIndex = Int
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public typealias TraitEntityIdHashSet = [TraitEntityIdHash: EntityIdInFamilyIndex]
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public class Nexus {
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/// - Index: index value matching entity identifier shifted to Int
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/// - Value: each element is a entity instance
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var entityStorage: Entities
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/// - Key: component type identifier
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/// - Value: each element is a component instance of the same type (uniform). New component instances are appended.
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var componentsByType: [ComponentIdentifier: UniformComponents]
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/// - Key: entity id as index
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/// - Value: each element is a component identifier associated with this entity
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var componentIdsByEntity: [EntityIndex: ComponentIdentifiers]
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/// - Key 'entity id' - 'component type' hash that uniquely links both
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/// - Value: each element is an index pointing to the component identifier per entity in the componentIdsByEntity map
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var componentIdsByEntityLookup: [EntityComponentHash: ComponentIdsByEntityIndex]
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/// - Values: entity ids that are currently not used
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var freeEntities: ContiguousArray<EntityIdentifier>
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var familiyByTraitHash: [FamilyTraitSetHash: Family]
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var familyMembersByTraitHash: [FamilyTraitSetHash: [EntityIdentifier]] // SparseSet for EntityIdentifier
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var familyContainsEntityId: [TraitEntityIdHash: Bool]
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public init() {
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entityStorage = Entities()
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componentsByType = [:]
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componentIdsByEntity = [:]
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componentIdsByEntityLookup = [:]
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freeEntities = ContiguousArray<EntityIdentifier>()
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familiyByTraitHash = [:]
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familyMembersByTraitHash = [:]
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familyContainsEntityId = [:]
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}
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}
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extension Nexus {
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func notify(_ event: Event) {
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//Log.debug(event)
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// TODO: implement
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}
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func report(_ message: String) {
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// TODO: implement
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}
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}
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