From 002e78046af8da5ca68e36c8abd7cad178ac943a Mon Sep 17 00:00:00 2001
From: Kosuke-KIDO-datalabs
 <103032063+Kosuke-KIDO-datalabs@users.noreply.github.com>
Date: Mon, 5 Aug 2024 22:36:54 +0900
Subject: [PATCH] feat: refactor control classes to use readonly for target
 property (#370)

---
 src/controls/ArcballControls.ts     | 2 +-
 src/controls/FirstPersonControls.ts | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/controls/ArcballControls.ts b/src/controls/ArcballControls.ts
index c64a77a3..8a65882d 100644
--- a/src/controls/ArcballControls.ts
+++ b/src/controls/ArcballControls.ts
@@ -190,7 +190,7 @@ class ArcballControls extends EventDispatcher {
   public minZoom: number
   public maxZoom: number
 
-  private target: Vector3
+  readonly target: Vector3
   private _currentTarget: Vector3
 
   private _tbRadius: number
diff --git a/src/controls/FirstPersonControls.ts b/src/controls/FirstPersonControls.ts
index 79fdd5de..e6bbd251 100644
--- a/src/controls/FirstPersonControls.ts
+++ b/src/controls/FirstPersonControls.ts
@@ -49,7 +49,7 @@ export class FirstPersonControls extends EventDispatcher {
 
   private lookDirection = new Vector3()
   private spherical = new Spherical()
-  private target = new Vector3()
+  readonly target = new Vector3()
 
   constructor(object: Camera, domElement?: HTMLElement | null) {
     super()