From 67126399e66bce06b07bf5aa8abc7b63b8053b88 Mon Sep 17 00:00:00 2001
From: Pascal Serrarens <pascal@passervr.com>
Date: Fri, 8 Nov 2024 14:05:58 +0100
Subject: [PATCH] Recognise a hips bone without Avatar Animator

---
 .../HumanoidControl/Scripts/HumanoidControl.cs   |  8 ++++++++
 .../Scripts/Targets/HipsTarget.cs                |  6 ++++++
 .../Scripts/Targets/HumanoidTarget.cs            | 16 +++++++++++++++-
 3 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/Runtime/HumanoidControl/Scripts/HumanoidControl.cs b/Runtime/HumanoidControl/Scripts/HumanoidControl.cs
index 69fb2d3..de1d38a 100644
--- a/Runtime/HumanoidControl/Scripts/HumanoidControl.cs
+++ b/Runtime/HumanoidControl/Scripts/HumanoidControl.cs
@@ -620,6 +620,14 @@ namespace Passer.Humanoid {
                     return animators[i];
                 }
             }
+
+            SkinnedMeshRenderer[] meshRenderers = avatarRoot.GetComponentsInChildren<SkinnedMeshRenderer>();
+            for (int i = 0; i < meshRenderers.Length; i++) {
+                if (meshRenderers[i].rootBone != null) {
+                    Debug.Log("Found a skinned mesh with bones");
+                }
+            }
+
             return null;
         }
 
diff --git a/Runtime/HumanoidControl/Scripts/Targets/HipsTarget.cs b/Runtime/HumanoidControl/Scripts/Targets/HipsTarget.cs
index 9df45f2..d78f9f3 100644
--- a/Runtime/HumanoidControl/Scripts/Targets/HipsTarget.cs
+++ b/Runtime/HumanoidControl/Scripts/Targets/HipsTarget.cs
@@ -270,6 +270,12 @@ namespace Passer.Humanoid {
                 boneId = Bone.Hips;
             }
 
+            public override void RetrieveBones(HumanoidControl humanoid) {
+                base.RetrieveBones(humanoid);
+                if (bone.transform == null)
+                    HumanoidTarget.GetDefaultBone(humanoid.transform, ref bone.transform, "Default_simple|Hips");
+            }
+
             public Vector3 GetForward() {
                 HumanoidControl humanoid = hipsTarget.humanoid;
                 if (humanoid.rightFootTarget.upperLeg.bone.transform == null || humanoid.leftFootTarget.upperLeg.bone.transform == null)
diff --git a/Runtime/HumanoidControl/Scripts/Targets/HumanoidTarget.cs b/Runtime/HumanoidControl/Scripts/Targets/HumanoidTarget.cs
index f7b485b..4fbd9b2 100644
--- a/Runtime/HumanoidControl/Scripts/Targets/HumanoidTarget.cs
+++ b/Runtime/HumanoidControl/Scripts/Targets/HumanoidTarget.cs
@@ -224,6 +224,20 @@ namespace Passer.Humanoid {
                 if (boneTransform != null)
                     return;
             }
+        }
+
+        public static void GetDefaultBone(Transform root, ref Transform boneTransform, params string[] boneNames) {
+            if (boneTransform != null)
+                return;
+
+            for (int i = 0; i < boneNames.Length; i++) {
+                if (boneNames[i] == null)
+                    continue;
+
+                boneTransform = root.FindDeepChild(boneNames[i]);
+                if (boneTransform != null)
+                    return;
+            }
 
         }
 
@@ -401,7 +415,7 @@ namespace Passer.Humanoid {
                 return obj.transform;
             }
 
-            public void RetrieveBones(HumanoidControl humanoid) {
+            public virtual void RetrieveBones(HumanoidControl humanoid) {
                 if (humanoid.targetsRig != null)
                     GetDefaultTargetBone(humanoid.targetsRig, ref target.transform, boneId);
                 if (humanoid.avatarRig != null)