28 lines
747 B
Swift
28 lines
747 B
Swift
//
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// ComponentIdentifier.swift
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// FirebladeECS
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//
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// Created by Christian Treffs on 20.08.19.
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//
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/// Identifies a component by it's meta type
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public struct ComponentIdentifier {
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public typealias Identifier = Int
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public let id: Identifier
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}
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extension ComponentIdentifier {
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@usableFromInline
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init<C>(_ componentType: C.Type) where C: Component {
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id = Self.makeRuntimeHash(componentType)
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}
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/// object identifier hash (only stable during runtime) - arbitrary hash is ok.
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static func makeRuntimeHash<C>(_ componentType: C.Type) -> Identifier where C: Component {
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ObjectIdentifier(componentType).hashValue
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}
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}
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extension ComponentIdentifier: Equatable {}
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extension ComponentIdentifier: Hashable {}
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