IK shenanigans

README.md

@@ -3,6 +3,6 @@ Testing branch for experimental version of ChilloutVR.
 **Build 2022r170ex3:**
 | Full name | Short name | Latest version | Current Status | Notes |
 |-----------|------------|----------------|----------------|-------|
-| Avatar Motion Tweaker | ml_amt | 1.1.9-experimental | Partially working | FBT behaviour problems
+| Avatar Motion Tweaker | ml_amt | 1.1.9-ex2 | Working |
 | Four Point Tracking | ml_fpt | 1.0.9 | Deprecated | In-game feature |
-| Leap Motion Extension | ml_lme | 1.2.8-ex2 | Yes | Working |
+| Leap Motion Extension | ml_lme | 1.2.8-ex2 | Working |

ml_amt/Main.cs

@@ -9,6 +9,8 @@ namespace ml_amt
 
         MotionTweaker m_localTweaker = null;
 
+        static int ms_calibrationCounts = 0;
+
         public override void OnInitializeMelon()
         {
             if(ms_instance == null)
@@ -26,6 +28,21 @@ namespace ml_amt
                 null,
                 new HarmonyLib.HarmonyMethod(typeof(AvatarMotionTweaker).GetMethod(nameof(OnSetupAvatar_Postfix), BindingFlags.Static | BindingFlags.NonPublic))
             );
+            HarmonyInstance.Patch(
+                typeof(ABI_RC.Systems.IK.SubSystems.BodySystem).GetMethod(nameof(ABI_RC.Systems.IK.SubSystems.BodySystem.Calibrate)),
+                null,
+                new HarmonyLib.HarmonyMethod(typeof(AvatarMotionTweaker).GetMethod(nameof(OnCalibrate_Postfix), BindingFlags.Static | BindingFlags.NonPublic))
+            );
+            HarmonyInstance.Patch(
+                typeof(ABI_RC.Systems.IK.SubSystems.BodySystem).GetMethod(nameof(ABI_RC.Systems.IK.SubSystems.BodySystem.FBTAvailable)),
+                new HarmonyLib.HarmonyMethod(typeof(AvatarMotionTweaker).GetMethod(nameof(OnFBTAvailable_Prefix), BindingFlags.Static | BindingFlags.NonPublic)),
+                null
+            );
+            HarmonyInstance.Patch(
+                typeof(PlayerSetup).GetMethod(nameof(PlayerSetup.ReCalibrateAvatar)),
+                new HarmonyLib.HarmonyMethod(typeof(AvatarMotionTweaker).GetMethod(nameof(OnReCalibrateAvatar_Prefix), BindingFlags.Static | BindingFlags.NonPublic)),
+                null
+            );
 
             MelonLoader.MelonCoroutines.Start(WaitForLocalPlayer());
         }
@@ -75,6 +92,8 @@ namespace ml_amt
         {
             try
             {
+                ms_calibrationCounts = 0;
+
                 if(m_localTweaker != null)
                     m_localTweaker.OnSetupAvatar();
             }
@@ -83,5 +102,35 @@ namespace ml_amt
                 MelonLoader.MelonLogger.Error(l_exception);
             }
         }
+
+        static void OnCalibrate_Postfix() => ms_instance?.OnCalibrate();
+        void OnCalibrate()
+        {
+            try
+            {
+                if(m_localTweaker != null)
+                    m_localTweaker.OnCalibrate();
+            }
+            catch(System.Exception l_exception)
+            {
+                MelonLoader.MelonLogger.Error(l_exception);
+            }
+        }
+
+        static void OnReCalibrateAvatar_Prefix()
+        {
+            MotionTweaker.ms_fptActive = false;
+            ms_calibrationCounts++;
+        }
+
+        static bool OnFBTAvailable_Prefix(ref bool __result)
+        {
+            if(MotionTweaker.ms_fptActive || (ms_calibrationCounts == 0))
+            {
+                __result = false;
+                return false;
+            }
+            return true;
+        }
     }
 }

ml_amt/MotionTweaker.cs

@@ -1,4 +1,5 @@
 using ABI_RC.Core.Player;
+using ABI_RC.Systems.IK.SubSystems;
 using ABI_RC.Systems.MovementSystem;
 using RootMotion.FinalIK;
 using System.Collections.Generic;
@@ -53,6 +54,7 @@ namespace ml_amt
         Transform m_avatarHips = null;
         float m_viewPointHeight = 1f;
         bool m_isInVR = false;
+        public static bool ms_fptActive = false;
 
         bool m_avatarReady = false;
         bool m_compatibleAvatar = false;
@@ -137,10 +139,10 @@ namespace ml_amt
                 m_upright = Mathf.Clamp(((l_avatarViewHeight > 0f) ? (l_currentHeight / l_avatarViewHeight) : 0f), 0f, 1f);
                 PoseState l_poseState = (m_upright <= m_proneLimit) ? PoseState.Proning : ((m_upright <= m_crouchLimit) ? PoseState.Crouching : PoseState.Standing);
 
-                if(m_followHips && (m_avatarHips != null))
+                if(m_avatarHips != null)
                 {
-                    Vector4 l_hipsToPlayer = (PlayerSetup.Instance.transform.GetMatrix().inverse * m_avatarHips.GetMatrix()) * ms_pointVector;
+                    Vector4 l_hipsToPoint = (PlayerSetup.Instance.transform.GetMatrix().inverse * m_avatarHips.GetMatrix()) * ms_pointVector;
-                    m_hipsToPlayer.Set(l_hipsToPlayer.x, 0f, l_hipsToPlayer.z);
+                    m_hipsToPlayer.Set(l_hipsToPoint.x, 0f, l_hipsToPoint.z);
                 }
 
                 if(m_isInVR && (m_vrIk != null) && m_vrIk.enabled)
@@ -255,6 +257,7 @@ namespace ml_amt
             m_avatarHips = null;
             m_viewPointHeight = 1f;
             m_parameters.Clear();
+            ms_fptActive = false;
         }
 
         public void OnSetupAvatar()
@@ -310,13 +313,30 @@ namespace ml_amt
                 if(m_customLocomotionOffset)
                     m_vrIk.solver.locomotion.offset = m_locomotionOffset;
 
-                m_vrIk.solver.OnPreUpdate += this.OnIKPreUpdate;
+                // Place our pre-solver listener first
-                m_vrIk.solver.OnPostUpdate += this.OnIKPostUpdate;
+                m_vrIk.onPreSolverUpdate.AddListener(this.OnIKPreUpdate);
+                m_vrIk.onPostSolverUpdate.AddListener(this.OnIKPostUpdate);
             }
 
             m_avatarReady = true;
         }
 
+        public void OnCalibrate()
+        {
+            if(m_avatarReady && BodySystem.enableHipTracking && !BodySystem.enableRightFootTracking && !BodySystem.enableLeftFootTracking && !BodySystem.enableLeftKneeTracking && !BodySystem.enableRightKneeTracking)
+            {
+                BodySystem.isCalibratedAsFullBody = false;
+                BodySystem.TrackingLeftLegEnabled = false;
+                BodySystem.TrackingRightLegEnabled = false;
+                BodySystem.TrackingLocomotionEnabled = true;
+
+                if(m_vrIk != null)
+                    m_vrIk.solver.spine.maxRootAngle = 25f; // I need to rotate my legs, ffs!
+
+                ms_fptActive = true;
+            }
+        }
+
         void OnIKPreUpdate()
         {
             bool l_legsOverride = false;
@@ -327,7 +347,6 @@ namespace ml_amt
             if(m_detectEmotes && m_emoteActive)
                 m_vrIk.solver.IKPositionWeight = 0f;
 
-            // Game doesn't manages VRIK for desktop itself anymore
             if((m_ikOverrideCrouch && (m_poseState != PoseState.Standing)) || (m_ikOverrideProne && (m_poseState == PoseState.Proning)))
             {
                 m_vrIk.solver.locomotion.weight = 0f;
@@ -347,8 +366,11 @@ namespace ml_amt
 
             bool l_solverActive = !Mathf.Approximately(m_vrIk.solver.IKPositionWeight, 0f);
 
-            if(l_legsOverride && l_solverActive && m_followHips && (!m_moving || m_poseState == PoseState.Proning) && m_isInVR)
+            if(l_legsOverride && l_solverActive && m_followHips && (!m_moving || (m_poseState == PoseState.Proning)) && m_isInVR && !BodySystem.isCalibratedAsFullBody)
+            {
+                ABI_RC.Systems.IK.IKSystem.VrikRootController.enabled = false;
                 PlayerSetup.Instance._avatar.transform.localPosition = m_hipsToPlayer;
+            }
         }
 
         void OnIKPostUpdate()

ml_amt/Properties/AssemblyInfo.cs

@@ -4,7 +4,7 @@
 [assembly: AssemblyVersion("1.1.9")]
 [assembly: AssemblyFileVersion("1.1.9")]
 
-[assembly: MelonLoader.MelonInfo(typeof(ml_amt.AvatarMotionTweaker), "AvatarMotionTweaker", "1.1.9-experimental", "SDraw", "https://github.com/SDraw/ml_mods_cvr")]
+[assembly: MelonLoader.MelonInfo(typeof(ml_amt.AvatarMotionTweaker), "AvatarMotionTweaker", "1.1.9-ex2", "SDraw", "https://github.com/SDraw/ml_mods_cvr")]
 [assembly: MelonLoader.MelonGame(null, "ChilloutVR")]
 [assembly: MelonLoader.MelonPlatform(MelonLoader.MelonPlatformAttribute.CompatiblePlatforms.WINDOWS_X64)]
 [assembly: MelonLoader.MelonPlatformDomain(MelonLoader.MelonPlatformDomainAttribute.CompatibleDomains.MONO)]

ml_amt/README.md

@@ -37,3 +37,6 @@ Available additional parameters for AAS animator:
 
 Additional avatars tweaks:
 * If avatar has child object with name `LocomotionOffset` its local position will be used for offsetting VRIK locomotion mass center.
+
+Additional mod's behaviour:
+* Disables FBT state in 4PT mode (head, hands, hips). Be sure to enable only hips tracking in `Settings - IK` tab.