1 files changed, 107 insertions, 0 deletions
diff --git a/Assets/Samples/XR Interaction Toolkit/3.1.2/Hands Interaction Demo/HandsDemoSceneAssets/Scripts/PokeBlendShapeAnimator.cs b/Assets/Samples/XR Interaction Toolkit/3.1.2/Hands Interaction Demo/HandsDemoSceneAssets/Scripts/PokeBlendShapeAnimator.cs
new file mode 100644
index 0000000..f70af26
--- /dev/null
+++ b/Assets/Samples/XR Interaction Toolkit/3.1.2/Hands Interaction Demo/HandsDemoSceneAssets/Scripts/PokeBlendShapeAnimator.cs
@@ -0,0 +1,107 @@
+using Unity.XR.CoreUtils.Bindings;
+using UnityEngine.XR.Interaction.Toolkit.AffordanceSystem.State;
+using UnityEngine.XR.Interaction.Toolkit.Filtering;
+using UnityEngine.XR.Interaction.Toolkit.Interactables;
+using UnityEngine.XR.Interaction.Toolkit.Utilities.Tweenables.Primitives;
+
+namespace UnityEngine.XR.Interaction.Toolkit.Samples.Hands
+{
+    /// <summary>
+    /// Animates a blend shape on a SkinnedMeshRenderer based on the interaction strength of a poke.
+    /// </summary>
+    public class PokeBlendShapeAnimator : MonoBehaviour
+    {
+        [SerializeField]
+        [Tooltip("The PokeFilter to use to determine the interaction strength.")]
+        XRPokeFilter m_PokeFilter;
+
+        [SerializeField]
+        [Tooltip("The SkinnedMeshRenderer to animate.")]
+        SkinnedMeshRenderer m_SkinnedMeshRenderer;
+
+        [SerializeField]
+        [Tooltip("The index of the blend shape to animate.")]
+        int m_BlendShapeIndex;
+
+        [SerializeField]
+        [Tooltip("The minimum blend shape value.")]
+        float m_BlendShapeMin;
+
+        [SerializeField]
+        [Tooltip("The maximum blend shape value.")]
+        float m_BlendShapeMax = 100f;
+
+        readonly BindingsGroup m_BindingsGroup = new BindingsGroup();
+
+        IXRHoverInteractable m_HoverInteractable;
+        IXRInteractionStrengthInteractable m_InteractionStrengthInteractable;
+#pragma warning disable CS0618 // Type or member is obsolete
+        readonly FloatTweenableVariable m_TweenableVariable = new FloatTweenableVariable();
+#pragma warning restore CS0618 // Type or member is obsolete
+
+        float m_TweenTarget;
+
+        /// <summary>
+        /// See <see cref="MonoBehaviour"/>.
+        /// </summary>
+        void OnEnable()
+        {
+            if (m_PokeFilter == null || m_SkinnedMeshRenderer == null)
+            {
+                enabled = false;
+                return;
+            }
+
+            m_HoverInteractable = m_PokeFilter.GetComponent<IXRHoverInteractable>();
+            m_InteractionStrengthInteractable = m_PokeFilter.GetComponent<IXRInteractionStrengthInteractable>();
+
+            m_BindingsGroup.AddBinding(m_PokeFilter.pokeStateData.Subscribe(data =>
+            {
+                var blendShapeValue = Mathf.Lerp(m_BlendShapeMin, m_BlendShapeMax, data.interactionStrength);
+                m_TweenTarget = blendShapeValue;
+            }));
+
+            m_BindingsGroup.AddBinding(m_TweenableVariable.SubscribeAndUpdate(newValue =>
+            {
+                m_SkinnedMeshRenderer.SetBlendShapeWeight(m_BlendShapeIndex, newValue);
+            }));
+        }
+
+        /// <summary>
+        /// See <see cref="MonoBehaviour"/>.
+        /// </summary>
+        void OnDisable()
+        {
+            m_BindingsGroup.Clear();
+        }
+
+        /// <summary>
+        /// See <see cref="MonoBehaviour"/>.
+        /// </summary>
+        void Update()
+        {
+            m_TweenableVariable.HandleTween(Time.deltaTime * 16f);
+            if (m_HoverInteractable.interactorsHovering.Count == 0)
+                return;
+
+            var pokeInteractorStrength = 0f;
+            var largestNonPokeInteractorStrength = 0f;
+            for (var index = 0; index < m_HoverInteractable.interactorsHovering.Count; ++index)
+            {
+                var interactor = m_HoverInteractable.interactorsHovering[index];
+                var interactionStrength = m_InteractionStrengthInteractable.GetInteractionStrength(interactor);
+                var isPokeProvider = interactor is IPokeStateDataProvider;
+                if (isPokeProvider)
+                {
+                    pokeInteractorStrength = interactionStrength;
+                }
+                else
+                {
+                    largestNonPokeInteractorStrength = Mathf.Max(largestNonPokeInteractorStrength, interactionStrength);
+                }
+            }
+
+            m_TweenableVariable.target = pokeInteractorStrength > largestNonPokeInteractorStrength ? m_TweenTarget : 0f;
+        }
+    }
+}