public/bluebey-studio: ドラッグで体が回らないようにする

非表示の回転ギズモが、three では隠れていてもポインタを取ってしまうため、ぶるべーをつかんで動かすと master ボーンが回り、体の向きが変わっていた。ギズモを表示していないときは TransformControls を無効にした（表示中は今までどおり操作できる）。

1 files changed, 10 insertions, 0 deletions

diff --git a/public/bluebey-studio/src/rig.js b/public/bluebey-studio/src/rig.js
index e06c337..1afe669 100644
--- a/public/bluebey-studio/src/rig.js
+++ b/public/bluebey-studio/src/rig.js
@@ -36,6 +36,12 @@ export class Rig {
     this.controls.setMode('rotate');
     this.controls.setSpace('local');
     this.controls.setSize(0.8);
+    // A *hidden* TransformControls still grabs the pointer in three: its picker
+    // stays raycastable even when the helper is not drawn, so grabbing the body
+    // (the rings sit on the `master` bone, right where you grab) silently turned
+    // the character. Keep the controls disabled until the gizmo is actually
+    // shown, so the mouse can only move the character (see setGizmoVisible).
+    this.controls.enabled = false;
     this.helper = this.controls.getHelper();
     this.helper.visible = false;
     // Whether the user wants the gizmo at all. It starts OFF: the model is the
@@ -65,6 +71,8 @@ export class Rig {
       this.controls.detach();
       this.helper.visible = false;
     }
+    // Only an actually-shown gizmo may take the pointer (see the constructor).
+    this.controls.enabled = this.helper.visible;
     if (!silent) this.onChange?.(this.selected);
   }
 
@@ -138,6 +146,8 @@ export class Rig {
   setGizmoVisible(visible) {
     this.gizmoWanted = visible !== false;
     this.helper.visible = this.gizmoWanted && this.selected != null;
+    // A hidden gizmo must not grab the pointer (see the constructor).
+    this.controls.enabled = this.helper.visible;
   }
 
   dispose() {