Fix compilation for visionOS (#44)

README.md

@@ -41,6 +41,7 @@ If you still have a question, enhancement, or a way to improve Pow, this project
 - iOS 15.0+
 - macOS 12.0
 - Mac Catalyst 15.0+
+- visionOS beta 6 (requires Xcode 15.1 beta 3)
 
 ## Change Effects
 

Sources/Pow/Effects/SmokeEffect.swift

@@ -54,7 +54,7 @@ private struct SmokeEffect: ViewModifier, Continuous {
         GeometryReader { proxy in
             ZStack {
                 ForEach(Array(particles.enumerated()), id: \.element) { (offset, particle) in
-                    #if os(iOS)
+                    #if os(iOS) || os(visionOS)
                     let image = UIImage(named: particle, in: .module, with: nil)!.cgImage!
                     #elseif os(macOS)
                     let image = Bundle.module.image(forResource: particle)!.cgImage(forProposedRect: nil, context: nil, hints: nil)!
@@ -67,7 +67,7 @@ private struct SmokeEffect: ViewModifier, Continuous {
     }
 }
 
-#if os(iOS)
+#if os(iOS) || os(visionOS)
 private class EmitterView: UIView {
     override class var layerClass : AnyClass {
        return CAEmitterLayer.self

Sources/Pow/Infrastructure/ViewRepresentable.swift

@@ -1,6 +1,6 @@
 import SwiftUI
 
-#if os(iOS) || os(tvOS)
+#if os(iOS) || os(tvOS) || os(visionOS)
 protocol ViewRepresentable: UIViewRepresentable {
     associatedtype ViewType = UIViewType
     func makeView(context: Context) -> ViewType