Initial Commit

2025-07-04 20:33:06 +03:00
commit 8f09347ae0
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+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * Licensed under the Oculus SDK License Agreement (the "License");
+ * you may not use the Oculus SDK except in compliance with the License,
+ * which is provided at the time of installation or download, or which
+ * otherwise accompanies this software in either electronic or hard copy form.
+ *
+ * You may obtain a copy of the License at
+ *
+ * https://developer.oculus.com/licenses/oculussdk/
+ *
+ * Unless required by applicable law or agreed to in writing, the Oculus SDK
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Oculus.Interaction.Input
+{
+    public class LastKnownGoodHand : Hand
+    {
+        private readonly HandDataAsset _lastState = new HandDataAsset();
+
+        protected override void Apply(HandDataAsset data)
+        {
+            bool shouldUseData = data.IsHighConfidence ||
+                                 data.RootPoseOrigin == PoseOrigin.FilteredTrackedPose ||
+                                 data.RootPoseOrigin == PoseOrigin.SyntheticPose;
+            if (data.IsDataValid && data.IsTracked && shouldUseData)
+            {
+                _lastState.CopyFrom(data);
+            }
+            else if (_lastState.IsDataValid && data.IsConnected)
+            {
+                // No high confidence data, use last known good.
+                // Only copy pose data, not confidence/tracked flags.
+                data.CopyPosesFrom(_lastState);
+                data.RootPoseOrigin = PoseOrigin.SyntheticPose;
+                data.IsDataValid = true;
+                data.IsTracked = true;
+                data.IsHighConfidence = true;
+            }
+            else
+            {
+                // This hand is not connected, or has never seen valid data.
+                data.IsTracked = false;
+                data.IsHighConfidence = false;
+                data.RootPoseOrigin = PoseOrigin.None;
+            }
+        }
+    }
+}