From 7ca52e5a0a151f0674f6fe2dfbbf3b42a53306b9 Mon Sep 17 00:00:00 2001
From: bd_ <bdunderscore@fushizen.net>
Date: Mon, 3 Oct 2022 18:29:49 -0700
Subject: [PATCH] [MergeArmature] Restore support for inferring prefix/suffix

---
 .../Editor/Inspector/MergeArmatureEditor.cs   | 56 +++++++++++++++++++
 .../Inspector/MergeArmatureEditor.cs.meta     |  3 +
 2 files changed, 59 insertions(+)
 create mode 100644 Packages/net.fushizen.modular-avatar/Editor/Inspector/MergeArmatureEditor.cs
 create mode 100644 Packages/net.fushizen.modular-avatar/Editor/Inspector/MergeArmatureEditor.cs.meta

diff --git a/Packages/net.fushizen.modular-avatar/Editor/Inspector/MergeArmatureEditor.cs b/Packages/net.fushizen.modular-avatar/Editor/Inspector/MergeArmatureEditor.cs
new file mode 100644
index 00000000..3f143917
--- /dev/null
+++ b/Packages/net.fushizen.modular-avatar/Editor/Inspector/MergeArmatureEditor.cs
@@ -0,0 +1,56 @@
+using System;
+using UnityEditor;
+using UnityEngine;
+
+namespace net.fushizen.modular_avatar.core.editor
+{
+    [CustomEditor(typeof(ModularAvatarMergeArmature))]
+    public class MergeArmatureEditor : Editor
+    {
+        public override void OnInspectorGUI()
+        {
+            var target = (ModularAvatarMergeArmature) this.target;
+            var priorMergeTarget = target.mergeTargetObject;
+
+            EditorGUI.BeginChangeCheck();
+            base.OnInspectorGUI();
+            if (EditorGUI.EndChangeCheck())
+            {
+                serializedObject.ApplyModifiedProperties();
+
+                if (target.mergeTargetObject != null && priorMergeTarget == null
+                                                     && string.IsNullOrEmpty(target.prefix)
+                                                     && string.IsNullOrEmpty(target.suffix))
+                {
+                    // We only infer if targeting the armature (below the Hips bone)
+                    var rootAnimator = RuntimeUtil.FindAvatarInParents(target.transform)?.GetComponent<Animator>();
+                    if (rootAnimator == null) return;
+
+                    var hips = rootAnimator.GetBoneTransform(HumanBodyBones.Hips);
+                    if (hips == null || hips.transform.parent != target.mergeTargetObject.transform) return;
+
+                    // We also require that the attached object has exactly one child (presumably the hips)
+                    if (target.transform.childCount != 1) return;
+
+                    // Infer the prefix and suffix by comparing the names of the mergeTargetObject's hips with the child of the
+                    // GameObject we're attached to.
+                    var baseName = hips.name;
+                    var mergeName = target.transform.GetChild(0).name;
+
+                    var prefixLength = mergeName.IndexOf(baseName, StringComparison.InvariantCulture);
+                    if (prefixLength < 0) return;
+
+                    var suffixLength = mergeName.Length - prefixLength - baseName.Length;
+
+                    target.prefix = mergeName.Substring(0, prefixLength);
+                    target.suffix = mergeName.Substring(mergeName.Length - suffixLength);
+
+                    if (!string.IsNullOrEmpty(target.prefix) || !string.IsNullOrEmpty(target.suffix))
+                    {
+                        RuntimeUtil.MarkDirty(target);
+                    }
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/Packages/net.fushizen.modular-avatar/Editor/Inspector/MergeArmatureEditor.cs.meta b/Packages/net.fushizen.modular-avatar/Editor/Inspector/MergeArmatureEditor.cs.meta
new file mode 100644
index 00000000..57774bf0
--- /dev/null
+++ b/Packages/net.fushizen.modular-avatar/Editor/Inspector/MergeArmatureEditor.cs.meta
@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: f8a400eb7fa8474fb04770eca10b1255
+timeCreated: 1664846740
\ No newline at end of file