feat: Physics Coroutine Manager

Engine.Physics2D/PhysicsCoroutineManager.cs

@@ -0,0 +1,62 @@
+using System.Collections;
+using System.Collections.Generic;
+
+using Syntriax.Engine.Core;
+using Syntriax.Engine.Core.Abstract;
+using Syntriax.Engine.Physics2D.Abstract;
+
+namespace Engine.Physics2D;
+
+public class PhysicsCoroutineManager : HierarchyObjectBase
+{
+    private readonly List<IEnumerator> enumerators = [];
+    private IPhysicsEngine2D? physicsEngine = null;
+
+
+    public IEnumerator CreateCoroutine(IEnumerator enumerator)
+    {
+        enumerators.Add(enumerator);
+        return enumerator;
+    }
+
+    public void StopCoroutine(IEnumerator enumerator)
+    {
+        enumerators.Remove(enumerator);
+    }
+
+    protected override void OnEnteringHierarchy(IGameManager gameManager)
+    {
+        physicsEngine = gameManager.HierarchyObjects.FindObject<IPhysicsEngine2D>();
+        if (physicsEngine is IPhysicsEngine2D foundPhysicsEngine)
+            foundPhysicsEngine.OnPhysicsStep += OnPhysicsStep;
+        else
+            gameManager.OnUpdate += OnUpdate;
+    }
+
+    private void OnPhysicsStep(IPhysicsEngine2D sender, float stepDeltaTime)
+    {
+        for (int i = enumerators.Count - 1; i >= 0; i--)
+            if (!enumerators[i].MoveNext())
+                enumerators.RemoveAt(i);
+    }
+
+    protected override void OnExitingHierarchy(IGameManager gameManager)
+    {
+        if (physicsEngine is IPhysicsEngine2D existingPhysicsEngine)
+            existingPhysicsEngine.OnPhysicsStep -= OnPhysicsStep;
+        gameManager.OnUpdate -= OnUpdate;
+    }
+
+    private void OnUpdate(IGameManager sender, EngineTime time)
+    {
+        if (GameManager is not IGameManager gameManager)
+            return;
+
+        physicsEngine = gameManager.HierarchyObjects.FindObject<IPhysicsEngine2D>();
+        if (physicsEngine is IPhysicsEngine2D foundPhysicsEngine)
+        {
+            foundPhysicsEngine.OnPhysicsStep += OnPhysicsStep;
+            gameManager.OnUpdate -= OnUpdate;
+        }
+    }
+}