update

Packages/app.rive.rive-unity/Runtime/DataBinding/Values/ViewModelInstanceNumberProperty.cs

@@ -0,0 +1,38 @@
+using System;
+using System.Runtime.InteropServices;
+
+namespace Rive
+{
+    /// <summary>
+    /// A view model instance property that holds a number.
+    /// </summary>
+    public sealed class ViewModelInstanceNumberProperty : ViewModelInstancePrimitiveProperty<float>
+    {
+        internal ViewModelInstanceNumberProperty(IntPtr instanceValuePtr, ViewModelInstance rootInstance) : base(instanceValuePtr, rootInstance)
+        {
+        }
+
+        /// <summary>
+        /// The value of the property.
+        /// </summary>
+        public override float Value
+        {
+            get
+            {
+                ThrowIfOwnerDisposed();
+                return getViewModelInstanceNumberValue(InstancePropertyPtr);
+            }
+            set
+            {
+                ThrowIfOwnerDisposed();
+                setViewModelInstanceNumberValue(InstancePropertyPtr, value);
+            }
+        }
+
+        [DllImport(NativeLibrary.name)]
+        private static extern float getViewModelInstanceNumberValue(IntPtr instanceProperty);
+
+        [DllImport(NativeLibrary.name)]
+        private static extern void setViewModelInstanceNumberValue(IntPtr instanceProperty, float value);
+    }
+}