From d251b3d388171958fd9ec67314a13fc1bdc821fb Mon Sep 17 00:00:00 2001
From: Christian Treffs <ctreffs@gmail.com>
Date: Wed, 5 Aug 2020 10:29:51 +0200
Subject: [PATCH] Re-order single

---
 Sources/FirebladeECS/Single.swift | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/Sources/FirebladeECS/Single.swift b/Sources/FirebladeECS/Single.swift
index d71d931..88aeb55 100644
--- a/Sources/FirebladeECS/Single.swift
+++ b/Sources/FirebladeECS/Single.swift
@@ -9,20 +9,6 @@ public protocol SingleComponent: Component {
     init()
 }
 
-extension Nexus {
-    public func single<S>(_ component: S.Type) -> Single<S> where S: SingleComponent {
-        let family = self.family(requires: S.self)
-        precondition(family.count <= 1, "Singleton count of \(S.self) must be 0 or 1: \(family.count)")
-        let entityId: EntityIdentifier
-        if family.isEmpty {
-            entityId = createEntity(with: S()).identifier
-        } else {
-            entityId = family.memberIds.first.unsafelyUnwrapped
-        }
-        return Single<S>(nexus: self, traits: family.traits, entityId: entityId)
-    }
-}
-
 public struct Single<A> where A: SingleComponent {
     public let nexus: Nexus
     public let traits: FamilyTraitSet
@@ -49,3 +35,17 @@ extension Single where A: SingleComponent {
         nexus.get(entity: entityId).unsafelyUnwrapped
     }
 }
+
+extension Nexus {
+    public func single<S>(_ component: S.Type) -> Single<S> where S: SingleComponent {
+        let family = self.family(requires: S.self)
+        precondition(family.count <= 1, "Singleton count of \(S.self) must be 0 or 1: \(family.count)")
+        let entityId: EntityIdentifier
+        if family.isEmpty {
+            entityId = createEntity(with: S()).identifier
+        } else {
+            entityId = family.memberIds.first.unsafelyUnwrapped
+        }
+        return Single<S>(nexus: self, traits: family.traits, entityId: entityId)
+    }
+}