fireblade-engine / ecs Goto Github PK

A dependency free, lightweight, fast Entity-Component System (ECS) implementation in Swift

License: MIT License

Swift 99.56% Makefile 0.44%

ecs entity entity-component-system entitycomponentsystem fireblade-engine game-development game-engine gamedev ios linux macos spm swift swift-package-manager windows

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vyo classdojo igorkravchenko utahwithak alteregosdev stackotter angouo itsjakov ichaplenko

ecs's Issues

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This issue lists Renovate updates and detected dependencies. Read the Dependency Dashboard docs to learn more.

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Update actions/upload-artifact action to v3.1.3
Update codecov/codecov-action action to v3.1.6
Update swiftwasm/swiftwasm-action action to v5.9
Update actions/checkout action to v4
Update actions/upload-artifact action to v4
Update codecov/codecov-action action to v4
Click on this checkbox to rebase all open PRs at once

Detected dependencies

github-actions

.github/workflows/ci-linux.yml

actions/checkout v3

codecov/codecov-action v3.1.3

.github/workflows/ci-macos.yml

actions/checkout v3

actions/upload-artifact v3.1.2

codecov/codecov-action v3.1.3

actions/upload-artifact v3.1.2

.github/workflows/ci-wasm.yml

actions/checkout v3

swiftwasm/swiftwasm-action v5.8

.github/workflows/ci-windows.yml

actions/checkout v3

.github/workflows/documentation.yml

SwiftDocOrg/swift-doc 1.0.0-rc.1

.github/workflows/markdown-link-check.yml

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Iterate all entities in a `Nexus`?

Hi there,

is there a way to iterate over all entities in a Nexus without the need for a family? There is no way to create a FamilyTraitSet for "all" components without explicitly giving all possible components types(!).

What I try to achieve: I have a component instance(!) and try to find out which entity holds that component. Something along these lines:

  func componentChanged(_ component: Component) { // this can be any component
       guard let entity = nexus.getEntity(ofComponent: component.identifier) else { return }
       ...
  }

with

  extension Nexus {

       func getEntity(ofComponent: ComponentIdenfier) -> Entity? {
           ...
       }
  }

Unfortunately Nexus.componentIdsByEntity is not available outside of the module and there is no EntityIterator provided by Nexus to iterate over all entities.

Thanks,
Kaweh

Contiguous memory storage for your ECS buffers.

Hello! I stumbled upon this project while looking for something completely different and I immediately took interest since I've been writing a Swift hobby game engine and so Fireblade is really interesting to me! I have a suggestion based on my own learnings about Swift to make this ECS system much faster, and I figured I'd drop it here in case it's useful!

Something I learnt from writing my own Swift engine with a data oriented design is that at the moment it's impossible to (easily) contiguously allocate instances of classes in memory... Swift's memory model just doesn't allow for it. In your Component protocol, you enforce an 'AnyObject' inheritance, which means that your components will be reference types and allocated by the swift runtime (which ultimately calls malloc), and the pointers to these objects will be allocated to wherever malloc thinks is appropriate, in a non ecs/cache friendly way. ContiguousArray unfortunately won't fix this problem since it'll just allocate a contiguous array of references to your class instances. ContiguousArray isn't truly 'contiguous' for reference types, as far as I've investigated.

This means that whenever one of your systems is iterating over a group of entity/components, it will likely incur a large amount of cache misses as you access/process the data in every component, and won't be very performant.

I actually stumbled into this problem myself, and even went as far as trying to hack into the Swift runtime in order to solve this issue (and it is somewhat ultimately solveable, with very involved hacking), but ultimately it felt like I was working against the language design, and so I just decided to use value types for my components, so that any contiguous buffers are actually contiguous and cache friendly.

My suggestion is to go with value types for your ECS system, which should solve the problem neatly.

Great job on Fireblade! I really hope to see this develop. :)

Segmentation fault during compile for Swift 5.3 (XCode 12 Beta)

Hey!

When trying to compile the project with XCode 12 and Swift 5.3 with SPM integration, XCode can't compile the project because of Segmentation fault:

CompileSwift normal x86_64 /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Family5.swift (in target 'FirebladeECS' from project 'FirebladeECS')
    cd /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs
    /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -c /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Component.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/ComponentIdentifier.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Entity+Component.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Entity.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/EntityIdentifier.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/EntityIdentifierGenerator.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Family+Coding.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Family.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Family1.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Family2.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Family3.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Family4.swift -primary-file /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Family5.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/FamilyProtocols.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/FamilyTraitSet.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Foundation+Extensions.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Hashing.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/ManagedContiguousArray.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Nexus+Component.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Nexus+ComponentsBuilder.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Nexus+Entity.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Nexus+Family.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Nexus+Internal.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Nexus+SceneGraph.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Nexus.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/NexusEventDelegate.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/NexusEvents.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Single.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/UnorderedSparseSet.swift -emit-module-path /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Intermediates.noindex/FirebladeECS.build/Debug/FirebladeECS.build/Objects-normal/x86_64/Family5\~partial.swiftmodule -emit-module-doc-path /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Intermediates.noindex/FirebladeECS.build/Debug/FirebladeECS.build/Objects-normal/x86_64/Family5\~partial.swiftdoc -emit-module-source-info-path /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Intermediates.noindex/FirebladeECS.build/Debug/FirebladeECS.build/Objects-normal/x86_64/Family5\~partial.swiftsourceinfo -serialize-diagnostics-path /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Intermediates.noindex/FirebladeECS.build/Debug/FirebladeECS.build/Objects-normal/x86_64/Family5.dia -emit-dependencies-path /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Intermediates.noindex/FirebladeECS.build/Debug/FirebladeECS.build/Objects-normal/x86_64/Family5.d -emit-reference-dependencies-path /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Intermediates.noindex/FirebladeECS.build/Debug/FirebladeECS.build/Objects-normal/x86_64/Family5.swiftdeps -target x86_64-apple-macos10.10 -enable-objc-interop -sdk /Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.0.sdk -I /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Products/Debug -I /Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Products/Debug -F /Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -enable-testing -g -module-cache-path /Users/kaspik/Library/Developer/Xcode/DerivedData/ModuleCache.noindex -swift-version 5 -enforce-exclusivity\=checked -Onone -D SWIFT_PACKAGE -D DEBUG -D Xcode -serialize-debugging-options -Xcc -working-directory -Xcc /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs -enable-anonymous-context-mangled-names -Xcc -I/Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Intermediates.noindex/FirebladeECS.build/Debug/FirebladeECS.build/swift-overrides.hmap -Xcc -I/Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Products/Debug/include -Xcc -I/Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Intermediates.noindex/FirebladeECS.build/Debug/FirebladeECS.build/DerivedSources-normal/x86_64 -Xcc -I/Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Intermediates.noindex/FirebladeECS.build/Debug/FirebladeECS.build/DerivedSources/x86_64 -Xcc -I/Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Intermediates.noindex/FirebladeECS.build/Debug/FirebladeECS.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -target-sdk-version 11.0 -module-name FirebladeECS -o /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Intermediates.noindex/FirebladeECS.build/Debug/FirebladeECS.build/Objects-normal/x86_64/Family5.o -index-store-path /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Index/DataStore -index-system-modules

Stack dump:
0.	Program arguments: /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -c /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Component.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/ComponentIdentifier.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Entity+Component.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Entity.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/EntityIdentifier.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/EntityIdentifierGenerator.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Family+Coding.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Family.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Family1.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Family2.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Family3.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Family4.swift -primary-file /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Family5.swift -primary-file /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/FamilyProtocols.swift -primary-file /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/FamilyTraitSet.swift -primary-file /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Foundation+Extensions.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Hashing.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/ManagedContiguousArray.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Nexus+Component.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Nexus+ComponentsBuilder.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Nexus+Entity.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Nexus+Family.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Nexus+Internal.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Nexus+SceneGraph.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Nexus.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/NexusEventDelegate.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/NexusEvents.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Single.swift /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/UnorderedSparseSet.swift -supplementary-output-file-map /var/folders/z7/pq6rp3ss6ks4gm6bdnw7tpzr0000gn/T/supplementaryOutputs-2158a9 -target x86_64-apple-macos10.10 -enable-objc-interop -sdk /Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.0.sdk -I /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Products/Debug -I /Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Products/Debug -F /Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -enable-testing -g -module-cache-path /Users/kaspik/Library/Developer/Xcode/DerivedData/ModuleCache.noindex -swift-version 5 -enforce-exclusivity=checked -Onone -D SWIFT_PACKAGE -D DEBUG -D Xcode -serialize-debugging-options -Xcc -working-directory -Xcc /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs -enable-anonymous-context-mangled-names -Xcc -I/Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Intermediates.noindex/FirebladeECS.build/Debug/FirebladeECS.build/swift-overrides.hmap -Xcc -I/Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Products/Debug/include -Xcc -I/Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Intermediates.noindex/FirebladeECS.build/Debug/FirebladeECS.build/DerivedSources-normal/x86_64 -Xcc -I/Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Intermediates.noindex/FirebladeECS.build/Debug/FirebladeECS.build/DerivedSources/x86_64 -Xcc -I/Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Intermediates.noindex/FirebladeECS.build/Debug/FirebladeECS.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG=1 -target-sdk-version 11.0 -module-name FirebladeECS -o /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Intermediates.noindex/FirebladeECS.build/Debug/FirebladeECS.build/Objects-normal/x86_64/Family5.o -o /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Intermediates.noindex/FirebladeECS.build/Debug/FirebladeECS.build/Objects-normal/x86_64/FamilyProtocols.o -o /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Intermediates.noindex/FirebladeECS.build/Debug/FirebladeECS.build/Objects-normal/x86_64/FamilyTraitSet.o -o /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Build/Intermediates.noindex/FirebladeECS.build/Debug/FirebladeECS.build/Objects-normal/x86_64/Foundation+Extensions.o -index-store-path /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/Index/DataStore -index-system-modules 
1.	Apple Swift version 5.3 (swiftlang-1200.0.22.4 clang-1200.0.25.1)
2.	While evaluating request TypeCheckSourceFileRequest(source_file "/Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Family5.swift")
3.	While type-checking extension of Requires5 (at /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Family5.swift:59:1)
4.	While type-checking protocol conformance to 'FamilyEncoding' (at /Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/FamilyProtocols.swift:25:8) for type 'Requires5<A, B, C, D, E>' (declared at [/Users/kaspik/Library/Developer/Xcode/DerivedData/MonsterWorld-bvwotptpsysxciczgxwvsgdqzbpe/SourcePackages/checkouts/ecs/Sources/FirebladeECS/Family5.swift:12:8 - line:57:1] RangeText="struct Requires5<A, B, C, D, E>: FamilyRequirementsManaging where A: Component, B: Component, C: Component, D: Component, E: Component {
    public let componentTypes: [Component.Type]

    public init(_ types: (A.Type, B.Type, C.Type, D.Type, E.Type)) {
        componentTypes = [A.self, B.self, C.self, D.self, E.self]
    }

    public static func components(nexus: Nexus, entityId: EntityIdentifier) -> (A, B, C, D, E) {
        let compA: A = nexus.get(unsafeComponentFor: entityId)
        let compB: B = nexus.get(unsafeComponentFor: entityId)
        let compC: C = nexus.get(unsafeComponentFor: entityId)
        let compD: D = nexus.get(unsafeComponentFor: entityId)
        let compE: E = nexus.get(unsafeComponentFor: entityId)
        return (compA, compB, compC, compD, compE)
    }

    public static func entityAndComponents(nexus: Nexus, entityId: EntityIdentifier) -> (Entity, A, B, C, D, E) {
        let entity = nexus.get(unsafeEntity: entityId)
        let compA: A = nexus.get(unsafeComponentFor: entityId)
        let compB: B = nexus.get(unsafeComponentFor: entityId)
        let compC: C = nexus.get(unsafeComponentFor: entityId)
        let compD: D = nexus.get(unsafeComponentFor: entityId)
        let compE: E = nexus.get(unsafeComponentFor: entityId)
        return (entity, compA, compB, compC, compD, compE)
    }

    public static func relativesDescending(nexus: Nexus, parentId: EntityIdentifier, childId: EntityIdentifier) ->
        (parent: (A, B, C, D, E), child: (A, B, C, D, E)) {
            let pcA: A = nexus.get(unsafeComponentFor: parentId)
            let pcB: B = nexus.get(unsafeComponentFor: parentId)
            let pcC: C = nexus.get(unsafeComponentFor: parentId)
            let pcD: D = nexus.get(unsafeComponentFor: parentId)
            let pcE: E = nexus.get(unsafeComponentFor: parentId)
            let ccA: A = nexus.get(unsafeComponentFor: childId)
            let ccB: B = nexus.get(unsafeComponentFor: childId)
            let ccC: C = nexus.get(unsafeComponentFor: childId)
            let ccD: D = nexus.get(unsafeComponentFor: childId)
            let ccE: E = nexus.get(unsafeComponentFor: childId)
            return (parent: (pcA, pcB, pcC, pcD, pcE),
                    child: (ccA, ccB, ccC, ccD, ccE))
    }

    public static func createMember(nexus: Nexus, components: (A, B, C, D, E)) -> Entity {
        nexus.createEntity(with: components.0, components.1, components.2, components.3, components.4)
    }
")
0  swift                    0x0000000105c394c5 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 37
1  swift                    0x0000000105c384c5 llvm::sys::RunSignalHandlers() + 85
2  swift                    0x0000000105c39a7f SignalHandler(int) + 111
3  libsystem_platform.dylib 0x00007fff68731d7d _sigtramp + 29
4  libsystem_platform.dylib 0x00007fe400d0a360 _sigtramp + 18446743956006733312
5  swift                    0x00000001024ee53b swift::constraints::ConstraintSystem::simplifyRestrictedConstraint(swift::constraints::ConversionRestrictionKind, swift::Type, swift::Type, swift::constraints::ConstraintKind, swift::OptionSet<swift::constraints::ConstraintSystem::TypeMatchFlags, unsigned int>, swift::constraints::ConstraintLocatorBuilder) + 779
6  swift                    0x00000001024de0f0 swift::constraints::ConstraintSystem::matchTypes(swift::Type, swift::Type, swift::constraints::ConstraintKind, swift::OptionSet<swift::constraints::ConstraintSystem::TypeMatchFlags, unsigned int>, swift::constraints::ConstraintLocatorBuilder) + 14960
7  swift                    0x00000001024e93d5 swift::constraints::ConstraintSystem::repairFailures(swift::Type, swift::Type, swift::constraints::ConstraintKind, llvm::SmallVectorImpl<swift::constraints::RestrictionOrFix>&, swift::constraints::ConstraintLocatorBuilder) + 12677
8  swift                    0x00000001024de085 swift::constraints::ConstraintSystem::matchTypes(swift::Type, swift::Type, swift::constraints::ConstraintKind, swift::OptionSet<swift::constraints::ConstraintSystem::TypeMatchFlags, unsigned int>, swift::constraints::ConstraintLocatorBuilder) + 14853
9  swift                    0x00000001024de4a9 swift::constraints::ConstraintSystem::matchTypes(swift::Type, swift::Type, swift::constraints::ConstraintKind, swift::OptionSet<swift::constraints::ConstraintSystem::TypeMatchFlags, unsigned int>, swift::constraints::ConstraintLocatorBuilder) + 15913
10 swift                    0x0000000102502e70 swift::constraints::ConstraintSystem::addConstraintImpl(swift::constraints::ConstraintKind, swift::Type, swift::Type, swift::constraints::ConstraintLocatorBuilder, bool) + 96
11 swift                    0x00000001024d9e82 swift::constraints::ConstraintSystem::addConstraint(swift::constraints::ConstraintKind, swift::Type, swift::Type, swift::constraints::ConstraintLocatorBuilder, bool) + 66
12 swift                    0x000000010270a9bd llvm::Optional<swift::RequirementMatch> llvm::function_ref<llvm::Optional<swift::RequirementMatch> (swift::Type, swift::Type)>::callback_fn<swift::matchWitness(llvm::DenseMap<std::__1::pair<swift::GenericSignatureImpl const*, swift::ClassDecl const*>, swift::RequirementEnvironment, llvm::DenseMapInfo<std::__1::pair<swift::GenericSignatureImpl const*, swift::ClassDecl const*> >, llvm::detail::DenseMapPair<std::__1::pair<swift::GenericSignatureImpl const*, swift::ClassDecl const*>, swift::RequirementEnvironment> >&, swift::ProtocolDecl*, swift::ProtocolConformance*, swift::DeclContext*, swift::ValueDecl*, swift::ValueDecl*)::$_1>(long, swift::Type, swift::Type) + 93
13 swift                    0x00000001026ebe5a swift::matchWitness(swift::DeclContext*, swift::ValueDecl*, swift::ValueDecl*, llvm::function_ref<std::__1::tuple<llvm::Optional<swift::RequirementMatch>, swift::Type, swift::Type> ()>, llvm::function_ref<llvm::Optional<swift::RequirementMatch> (swift::Type, swift::Type)>, llvm::function_ref<swift::RequirementMatch (bool, llvm::ArrayRef<swift::OptionalAdjustment>)>) + 8778
14 swift                    0x00000001026ed993 swift::matchWitness(llvm::DenseMap<std::__1::pair<swift::GenericSignatureImpl const*, swift::ClassDecl const*>, swift::RequirementEnvironment, llvm::DenseMapInfo<std::__1::pair<swift::GenericSignatureImpl const*, swift::ClassDecl const*> >, llvm::detail::DenseMapPair<std::__1::pair<swift::GenericSignatureImpl const*, swift::ClassDecl const*>, swift::RequirementEnvironment> >&, swift::ProtocolDecl*, swift::ProtocolConformance*, swift::DeclContext*, swift::ValueDecl*, swift::ValueDecl*) + 1187
15 swift                    0x00000001026ee4e2 swift::WitnessChecker::findBestWitness(swift::ValueDecl*, bool*, swift::NormalProtocolConformance*, llvm::SmallVectorImpl<swift::RequirementMatch>&, unsigned int&, unsigned int&, bool&) + 946
16 swift                    0x00000001026f8b83 swift::ConformanceChecker::resolveWitnessViaLookup(swift::ValueDecl*) + 643
17 swift                    0x00000001026f3a65 swift::MultiConformanceChecker::checkIndividualConformance(swift::NormalProtocolConformance*, bool) + 14821
18 swift                    0x00000001026efb23 swift::MultiConformanceChecker::checkAllConformances() + 147
19 swift                    0x00000001026ff6d7 swift::TypeChecker::checkConformancesInContext(swift::DeclContext*, swift::IterableDeclContext*) + 8295
20 swift                    0x00000001026abba8 (anonymous namespace)::DeclChecker::visit(swift::Decl*) + 18344
21 swift                    0x000000010276f401 swift::TypeCheckSourceFileRequest::evaluate(swift::Evaluator&, swift::SourceFile*) const + 753
22 swift                    0x0000000102772289 llvm::Expected<swift::TypeCheckSourceFileRequest::OutputType> swift::Evaluator::getResultUncached<swift::TypeCheckSourceFileRequest>(swift::TypeCheckSourceFileRequest const&) + 953
23 swift                    0x000000010276ef84 swift::TypeCheckSourceFileRequest::OutputType swift::evaluateOrDefault<swift::TypeCheckSourceFileRequest>(swift::Evaluator&, swift::TypeCheckSourceFileRequest, swift::TypeCheckSourceFileRequest::OutputType) + 164
24 swift                    0x00000001018f04eb swift::CompilerInstance::performSemaUpTo(swift::SourceFile::ASTStage_t) + 6859
25 swift                    0x00000001017b1801 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 6849
26 swift                    0x0000000101736157 main + 1255
27 libdyld.dylib            0x00007fff68503851 start + 1
error: Segmentation fault: 11 (in target 'FirebladeECS' from project 'FirebladeECS')

Entity.assign no longer produces ComponentAdded event for NexusEventDelegate

Steps to reproduce:

import FirebladeECS

let nexus = Nexus()

class EventDelegate: NexusEventDelegate {
    func nexusEvent(_ event: NexusEvent) {
        if event is ComponentAdded {
            print("component added")
        }
    }
    
    func nexusNonFatalError(_ message: String) {}
}

let delegate = EventDelegate()
nexus.delegate = delegate

class Comp: Component {}
class Comp2: Component {}


nexus.createEntity().assign(Comp(), Comp2())

In 0.17.2 the ComponentAdded event is triggered.

Is ECS possible to build iOS application not a game？

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