swift6 updates reflected as of Xcode16-beta3

Sources/Lindenmayer/Examples/Examples3D.swift

@@ -422,14 +422,14 @@ public enum Examples3D: Sendable {
             let upper: Float = 45.0
             let lower: Float = 15.0
 
-            if await rng.p(0.5) {
-                return await [
+            if rng.p(0.5) {
+                return [
                     StaticStem2(length: 2),
                     Modules.PitchDown(angle: Angle(degrees: Double(rng.randomFloat(in: lower ... upper)))),
                     Stem2(length: stem.length),
                 ]
             } else {
-                return await [
+                return [
                     StaticStem2(length: 2),
                     Modules.PitchUp(angle: Angle(degrees: Double(rng.randomFloat(in: lower ... upper)))),
                     Stem2(length: stem.length),

Sources/Lindenmayer/LSystemTypes/ParameterizedRandomContextualLSystem.swift

@@ -72,7 +72,6 @@ import Foundation
 ///
 /// ### Updating the L-system
 ///
-/// - ``ParameterizedRandomContextualLSystem/setSeed(seed:)``
 /// - ``ParameterizedRandomContextualLSystem/setParameters(params:)``
 /// - ``ParameterizedRandomContextualLSystem/set(seed:params:)``
 ///
@@ -154,18 +153,18 @@ public struct ParameterizedRandomContextualLSystem<PType, PRNG>: LindenmayerSyst
     }
 
     public func reset() async -> Self {
-        await prng.resetRNG(seed: prng.seed)
+        await prng.resetRNG()
         return ParameterizedRandomContextualLSystem<PType, PRNG>(axiom: axiom, state: nil, newStateIndicators: nil, parameters: parameters, prng: prng, rules: rules)
     }
 
-    /// Sets the seed for the pseudo-random number generator to the value you provide.
-    /// - Parameter seed: The seed value to set within the pseudo-random generator.
-    /// - Returns: The L-system with the seed value updated.
-    @discardableResult
-    public func setSeed(seed: UInt64) async -> Self {
-        await prng.resetRNG(seed: seed)
-        return self
-    }
+//    /// Sets the seed for the pseudo-random number generator to the value you provide.
+//    /// - Parameter seed: The seed value to set within the pseudo-random generator.
+//    /// - Returns: The L-system with the seed value updated.
+//    @discardableResult
+//    public func setSeed(seed: UInt64) async -> Self {
+//        await prng.resetRNG(seed: seed)
+//        return self
+//    }
 
     /// Sets the parameters for the L-system to the value you provide.
     /// - Parameter params: The updated value for the parameter type of the L-system.
@@ -174,17 +173,6 @@ public struct ParameterizedRandomContextualLSystem<PType, PRNG>: LindenmayerSyst
     public func setParameters(params: PType) -> Self {
         Self(axiom: axiom, state: state, newStateIndicators: newStateIndicators, parameters: params, prng: prng, rules: rules)
     }
-
-    /// Sets the seed for the pseudo-random number generator and the parameters for the L-system to the value you provide.
-    /// - Parameters:
-    ///   - seed: The seed value to set within the pseudo-random generator.
-    ///   - params: The updated value for the parameter type of the L-system.
-    /// - Returns: The L-system with the seed value and parameters value updated.
-    @discardableResult
-    public func set(seed: UInt64) async -> Self {
-        await prng.resetRNG(seed: seed)
-        return self
-    }
 }
 
 // - MARK: Rewrite rules including RNG and Parameters from the LSystem

Sources/Lindenmayer/LSystemTypes/RandomContextualLSystem.swift

@@ -54,10 +54,6 @@ import Foundation
 /// - ``RandomContextualLSystem/rewriteWithRNG(directContext:rightContext:where:produces:)``
 /// - ``RandomContextualLSystem/rewriteWithRNG(leftContext:directContext:rightContext:where:produces:)``
 ///
-/// ### Updating the L-system
-///
-/// - ``RandomContextualLSystem/setSeed(seed:)``
-///
 /// ### Evolving the L-system
 ///
 /// - ``RandomContextualLSystem/evolve()``
@@ -129,18 +125,9 @@ public struct RandomContextualLSystem<PRNG>: LindenmayerSystem where PRNG: Seede
     /// Resets the L-system to it's initial state, wiping out an existing state while keeping the rules.
     /// - Returns: A new L-system with it's state reset to the initial state you set when you created the L-system.
     public func reset() async -> Self {
-        await prng.resetRNG(seed: prng.seed)
+        await prng.resetRNG()
         return RandomContextualLSystem(axiom: axiom, state: nil, newStateIndicators: nil, prng: prng, rules: rules)
     }
-
-    /// Sets the seed for the pseudo-random number generator to the value you provide.
-    /// - Parameter seed: The seed value to set within the pseudo-random generator.
-    /// - Returns: The L-system with the seed value updated.
-    @discardableResult
-    public func setSeed(seed: UInt64) async -> Self {
-        await prng.resetRNG(seed: seed)
-        return self
-    }
 }
 
 // - MARK: Rewrite rules including PRNG from the LSystem

Sources/Lindenmayer/PRNG/RNGWrapper.swift

@@ -39,8 +39,9 @@ public actor RNGWrapper<PRNG>: Sendable where PRNG: SeededRandomNumberGenerator
         _prng.position
     }
 
-    public func resetRNG(seed: UInt64) {
-        _prng = PRNG(seed: seed)
+    public func resetRNG() {
+        let originalSeed = _prng.seed
+        _prng = PRNG(seed: originalSeed)
         #if DEBUG
             _invokeCount = 0
         #endif

Sources/LindenmayerViews/LSystem3DModel.swift

@@ -5,7 +5,7 @@
 //  Created by Joseph Heck on 1/8/22.
 //
 
-@preconcurrency import Combine
+import Combine
 import Foundation
 import Lindenmayer
 import SceneKit
@@ -17,7 +17,7 @@ import SwiftUI
 /// The module manages the number of evolutions of an L-system, and provides updated 3D SceneKit scenes as you change the number of evolutions.
 /// The model emits `ObservableObject` change notifications when the number of iterations is changed.
 @MainActor
-public class LSystem3DModel: ObservableObject {
+public class LSystem3DModel: @preconcurrency ObservableObject {
     @Published public var system: LindenmayerSystem
     let renderer = SceneKitRenderer()
     let _baseSystem = Examples3D.sympodialTree
@@ -36,7 +36,8 @@ public class LSystem3DModel: ObservableObject {
     }
 
     func evolveBy(iterations: Int) async {
-        system = await _baseSystem.evolved(iterations: _iterations)
+        system = await _baseSystem.evolved(iterations: iterations)
+        _iterations = iterations
         objectWillChange.send()
         (_scene, _transformSequence) = renderer.generateScene(lsystem: system)
         let headingIndicator = DebugNodes.headingIndicator()