Add: LinkBehaviour to AddTo

src/LitMotion/Assets/LitMotion/Runtime/Internal/MotionHandleLinker.cs

@@ -8,17 +8,47 @@ namespace LitMotion
     [AddComponentMenu("")]
     internal sealed class MotionHandleLinker : MonoBehaviour
     {
-        FastListCore<MotionHandle> handleList = new(8);
+        FastListCore<MotionHandle> cancelOnDestroyList = new(8);
+        FastListCore<MotionHandle> cancelOnDisableList = new(8);
+        FastListCore<MotionHandle> completeOnDisableList = new(8);
 
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public void Register(MotionHandle handle)
+        public void Register(MotionHandle handle, LinkBehaviour linkBehaviour)
         {
-            handleList.Add(handle);
+            switch (linkBehaviour)
+            {
+                case LinkBehaviour.CancelOnDestroy:
+                    cancelOnDestroyList.Add(handle);
+                    break;
+                case LinkBehaviour.CancelOnDisable:
+                    cancelOnDisableList.Add(handle);
+                    break;
+                case LinkBehaviour.CompleteOnDisable:
+                    completeOnDisableList.Add(handle);
+                    break;
+            }
+        }
+
+        void OnDisable()
+        {
+            var cancelSpan = cancelOnDisableList.AsSpan();
+            for (int i = 0; i < cancelSpan.Length; i++)
+            {
+                ref var handle = ref cancelSpan[i];
+                if (handle.IsActive()) handle.Cancel();
+            }
+
+            var completeSpan = completeOnDisableList.AsSpan();
+            for (int i = 0; i < completeSpan.Length; i++)
+            {
+                ref var handle = ref completeSpan[i];
+                if (handle.IsActive()) handle.Complete();
+            }
         }
 
         void OnDestroy()
         {
-            var span = handleList.AsSpan();
+            var span = cancelOnDestroyList.AsSpan();
             for (int i = 0; i < span.Length; i++)
             {
                 ref var handle = ref span[i];

src/LitMotion/Assets/LitMotion/Runtime/LinkBehaviour.cs

@@ -0,0 +1,12 @@
+namespace LitMotion
+{
+    /// <summary>
+    /// Specifies the behavior when linking motion to GameObject with AddTo.
+    /// </summary>
+    public enum LinkBehaviour
+    {
+        CancelOnDestroy = 0,
+        CancelOnDisable = 1,
+        CompleteOnDisable = 2
+    }
+}

src/LitMotion/Assets/LitMotion/Runtime/MotionHandleExtensions.cs

@@ -57,7 +57,19 @@ public static MotionHandle AddTo(this MotionHandle handle, CompositeMotionHandle
         /// <param name="target">Target object</param>
         public static MotionHandle AddTo(this MotionHandle handle, GameObject target)
         {
-            GetOrAddComponent<MotionHandleLinker>(target).Register(handle);
+            GetOrAddComponent<MotionHandleLinker>(target).Register(handle, LinkBehaviour.CancelOnDestroy);
+            return handle;
+        }
+
+        /// <summary>
+        /// Link the motion lifecycle to the target object.
+        /// </summary>
+        /// <param name="handle">This motion handle</param>
+        /// <param name="target">Target object</param>
+        /// <param name="linkBehaviour">Link behaviour</param>
+        public static MotionHandle AddTo(this MotionHandle handle, GameObject target, LinkBehaviour linkBehaviour)
+        {
+            GetOrAddComponent<MotionHandleLinker>(target).Register(handle, linkBehaviour);
             return handle;
         }
 
@@ -68,7 +80,19 @@ public static MotionHandle AddTo(this MotionHandle handle, GameObject target)
         /// <param name="target">Target object</param>
         public static MotionHandle AddTo(this MotionHandle handle, Component target)
         {
-            GetOrAddComponent<MotionHandleLinker>(target.gameObject).Register(handle);
+            GetOrAddComponent<MotionHandleLinker>(target.gameObject).Register(handle, LinkBehaviour.CancelOnDestroy);
+            return handle;
+        }
+
+        /// <summary>
+        /// Link the motion lifecycle to the target object.
+        /// </summary>
+        /// <param name="handle">This motion handle</param>
+        /// <param name="target">Target object</param>
+        /// <param name="linkBehaviour">Link behaviour</param>
+        public static MotionHandle AddTo(this MotionHandle handle, Component target, LinkBehaviour linkBehaviour)
+        {
+            GetOrAddComponent<MotionHandleLinker>(target.gameObject).Register(handle, linkBehaviour);
             return handle;
         }
 

src/LitMotion/Assets/LitMotion/Tests/Runtime/AddToTest.cs

@@ -21,6 +21,34 @@ public IEnumerator Test_AddTo()
             Assert.IsTrue(canceled);
         }
 
+        [UnityTest]
+        public IEnumerator Test_AddTo_CancelOnDisable()
+        {
+            var canceled = false;
+            var obj = new GameObject("Target");
+            var handle = LMotion.Create(0f, 1f, 2f)
+                .WithOnCancel(() => canceled = true)
+                .RunWithoutBinding()
+                .AddTo(obj, LinkBehaviour.CancelOnDisable);
+            yield return new WaitForSeconds(0.1f);
+            obj.SetActive(false);
+            Assert.IsTrue(canceled);
+        }
+
+        [UnityTest]
+        public IEnumerator Test_AddTo_CompleteOnDisable()
+        {
+            var completed = false;
+            var obj = new GameObject("Target");
+            var handle = LMotion.Create(0f, 1f, 2f)
+                .WithOnComplete(() => completed = true)
+                .RunWithoutBinding()
+                .AddTo(obj, LinkBehaviour.CompleteOnDisable);
+            yield return new WaitForSeconds(0.1f);
+            obj.SetActive(false);
+            Assert.IsTrue(completed);
+        }
+
         [UnityTest]
         public IEnumerator Test_AddTo_MonoBehaviour()
         {