Emit delta only when it makes sense

OpenTabletDriver · Nov 27, 2023 · 55d24f6 · 55d24f6
1 parent 5d3d8e2
commit 55d24f6
Showing 1 changed file with 9 additions and 4 deletions.
diff --git a/OpenTabletDriver.Desktop/Interop/Input/Absolute/MacOSAbsolutePointer.cs b/OpenTabletDriver.Desktop/Interop/Input/Absolute/MacOSAbsolutePointer.cs
@@ -12,8 +12,8 @@ namespace OpenTabletDriver.Desktop.Interop.Input.Absolute
     public class MacOSAbsolutePointer : MacOSVirtualMouse, IAbsolutePointer
     {
         private Vector2 offset;
-        private Vector2 lastPos;
-        private Vector2 delta;
+        private Vector2? lastPos;
+        private Vector2? delta;
 
         public MacOSAbsolutePointer()
         {
@@ -33,12 +33,17 @@ public void SetPosition(Vector2 pos)
         protected override void SetPendingPosition(IntPtr mouseEvent, float x, float y)
         {
             CGEventSetLocation(mouseEvent, new CGPoint(x, y));
-            CGEventSetDoubleValueField(mouseEvent, CGEventField.mouseEventDeltaX, delta.X);
-            CGEventSetDoubleValueField(mouseEvent, CGEventField.mouseEventDeltaY, delta.Y);
+            if (delta is not null)
+            {
+                CGEventSetDoubleValueField(mouseEvent, CGEventField.mouseEventDeltaX, delta.Value.X);
+                CGEventSetDoubleValueField(mouseEvent, CGEventField.mouseEventDeltaY, delta.Value.Y);
+            }
         }
 
         protected override void ResetPendingPosition(IntPtr mouseEvent)
         {
+            lastPos = null;
+            delta = null;
         }
     }
 }