clean up card instantiation (hackily - transform parent dancing)

Runtime/Helpers/CoroutineRandomDelayExtensions.cs

@@ -0,0 +1,14 @@
+using System.Collections;
+using UnityEngine;
+
+namespace Crysc.Helpers
+{
+    public static class CoroutineRandomDelayExtensions
+    {
+        public static IEnumerator WithRandomDelay(this IEnumerator enumerator, float maxDelay)
+        {
+            yield return new WaitForSeconds(Random.Range(minInclusive: 0f, maxInclusive: maxDelay));
+            yield return enumerator;
+        }
+    }
+}

Runtime/Presentation/Arrangements/Arrangement.cs

@@ -19,8 +19,8 @@ public enum Alignment
             Right,
         }
 
-        public event EventHandler ElementArrangeStarted;
-        public event EventHandler ElementArrangeEnded;
+        public event EventHandler<ArrangementEventArgs> ElementArrangeStarted;
+        public event EventHandler<ArrangementEventArgs> ElementArrangeEnded;
 
         public const float ZOffset = 0.01f;
 
@@ -51,6 +51,8 @@ public enum Alignment
         public Vector2 Pivot { get; private set; } = new(x: 0.5f, y: 0.5f);
         public Vector2 SizeMultiplier { get; private set; } = Vector2.zero;
 
+        public Transform ElementsParent => ElementsParentInput;
+
         private readonly List<IElement> _elements = new();
         private readonly Dictionary<IElement, ElementPlacement> _elementsPlacements = new();
         private readonly Dictionary<IElement, ElementMovementPlan> _elementsMovementPlans = new();
@@ -142,8 +144,15 @@ IEnumerator Run()
                     foreach (ElementMovementPlan plan in _elementsMovementPlans.Values)
                     {
                         if (!plan.IsStarted)
-                            if (_animationTime > plan.StartTime) startedPlans.Add(plan);
-                            else continue;
+                            if (_animationTime > plan.StartTime)
+                            {
+                                plan.Element.Transform.SetParent(ElementsParentInput);
+                                startedPlans.Add(plan);
+                            }
+                            else
+                            {
+                                continue;
+                            }
 
                         IncrementPlan(plan: plan, time: _animationTime);
 
@@ -154,13 +163,13 @@ IEnumerator Run()
                     foreach (ElementMovementPlan plan in startedPlans)
                     {
                         _elementsMovementPlans[plan.Element] = plan.Copy(isStarted: true);
-                        ElementArrangeStarted?.Invoke(sender: this, e: EventArgs.Empty);
+                        ElementArrangeStarted?.Invoke(sender: this, e: new ArrangementEventArgs(plan));
                     }
 
                     foreach (ElementMovementPlan plan in endedPlans)
                     {
                         _elementsMovementPlans.Remove(plan.Element);
-                        ElementArrangeEnded?.Invoke(sender: this, e: EventArgs.Empty);
+                        ElementArrangeEnded?.Invoke(sender: this, e: new ArrangementEventArgs(plan));
                     }
 
                     startedPlans.Clear();

Runtime/Presentation/Arrangements/ArrangementEventArgs.cs

@@ -0,0 +1,10 @@
+using System;
+
+namespace Crysc.Presentation.Arrangements
+{
+    public class ArrangementEventArgs : EventArgs
+    {
+        public ElementMovementPlan Plan { get; }
+        public ArrangementEventArgs(ElementMovementPlan plan) { Plan = plan; }
+    }
+}