Make head tilts smooth

KK_SexFaces/ChaControlExtensions.cs

@@ -0,0 +1,26 @@
+using System.Collections;
+using UnityEngine;
+
+namespace SexFaces
+{
+    public static class ChaControlExtensions
+    {
+        public static void MoveNeck(this ChaControl chaControl, Quaternion end)
+            => chaControl.StartCoroutine(SlerpNeck(chaControl, end));
+
+        private static IEnumerator SlerpNeck(ChaControl chaControl, Quaternion end)
+        {
+            const float durationSecs = 1f;
+            float startTime = Time.unscaledTime;
+            var start = Hooks.NeckLookCalcHooks.GetNeckRotation(chaControl);
+            while (Time.unscaledTime - startTime < durationSecs)
+            {
+                var t = (Time.unscaledTime - startTime) / durationSecs;
+                t = 1f - (1f - t) * (1f - t);
+                var rotation = Quaternion.Slerp(start, end, t);
+                Hooks.NeckLookCalcHooks.SetNeckRotation(chaControl, rotation);
+                yield return new WaitForEndOfFrame();
+            }
+        }
+    }
+}

KK_SexFaces/FacialExpression.cs

@@ -82,7 +82,7 @@ public void Apply(ChaControl chaControl)
             }
             chaControl.mouthCtrl.ChangeFace(StringToDict(MouthExpression), true);
             chaControl.ChangeMouthOpenMax(MouthOpenMax);
-            Hooks.NeckLookCalcHooks.SetNeckRotation(chaControl, NeckRot ?? Quaternion.identity);
+            chaControl.MoveNeck(NeckRot ?? Quaternion.identity);
         }
 
         private static bool IsLookingAtFixedPosition(ChaControl chaControl)