From ef50f540fbf2de983c0899ce36f57e50cdd10fe9 Mon Sep 17 00:00:00 2001
From: Mugen87 <michael.herzog@human-interactive.org>
Date: Mon, 18 Dec 2023 11:04:27 +0100
Subject: [PATCH] Sphere: Add `isSphere` flag.

---
 docs/api/ar/math/Sphere.html       |  3 +++
 docs/api/en/math/Sphere.html       |  3 +++
 docs/api/it/math/Sphere.html       |  5 +++++
 docs/api/zh/math/Sphere.html       |  5 +++++
 src/math/Sphere.js                 |  2 ++
 test/unit/src/math/Sphere.tests.js | 10 ++++++++++
 6 files changed, 28 insertions(+)

diff --git a/docs/api/ar/math/Sphere.html b/docs/api/ar/math/Sphere.html
index 65962669f86c73..8de44b98fbe407 100644
--- a/docs/api/ar/math/Sphere.html
+++ b/docs/api/ar/math/Sphere.html
@@ -28,6 +28,9 @@ <h3>[property:Vector3 center]</h3>
 		[page:Vector3] يحدد مركز الكرة. الافتراضي هو `(0، 0،
 		0)`.
 		</p>
+
+		<h3>[property:Boolean isSphere]</h3>
+		<p>علامة للقراءة فقط للتحقق مما إذا كان كائنًا معينًا من نوع [name].</p>
 	 
 		<h3>[property:Float radius]</h3>
 		<p>نصف قطر الكرة. الافتراضي هو -1.</p>
diff --git a/docs/api/en/math/Sphere.html b/docs/api/en/math/Sphere.html
index 91fe283fd723b6..11867bef220a86 100644
--- a/docs/api/en/math/Sphere.html
+++ b/docs/api/en/math/Sphere.html
@@ -29,6 +29,9 @@ <h3>[property:Vector3 center]</h3>
 			0)`.
 		</p>
 
+		<h3>[property:Boolean isSphere]</h3>
+		<p>Read-only flag to check if a given object is of type [name].</p>
+
 		<h3>[property:Float radius]</h3>
 		<p>The radius of the sphere. Default is -1.</p>
 
diff --git a/docs/api/it/math/Sphere.html b/docs/api/it/math/Sphere.html
index a1e4be8375bb98..14903a611eb1ad 100644
--- a/docs/api/it/math/Sphere.html
+++ b/docs/api/it/math/Sphere.html
@@ -28,6 +28,11 @@ <h2>Proprietà</h2>
 		<h3>[property:Vector3 center]</h3>
 		<p>Un [page:Vector3] che definisce il centro della sfera. Il valore predefinito è `(0, 0, 0)`.</p>
 
+		<h3>[property:Boolean isSphere]</h3>
+		<p>
+			Flag di sola lettura per verificare se l'oggetto dato è di tipo [name].
+		</p>
+
 		<h3>[property:Float radius]</h3>
 		<p>Il raggio della sfera. Il valore predefinito è -1.</p>
 
diff --git a/docs/api/zh/math/Sphere.html b/docs/api/zh/math/Sphere.html
index 36934895b0af49..500c9bce938a08 100644
--- a/docs/api/zh/math/Sphere.html
+++ b/docs/api/zh/math/Sphere.html
@@ -28,6 +28,11 @@ <h2>属性</h2>
 		<h3>[property:Vector3 center]</h3>
 		<p>A [page:Vector3]定义了球心的位置，默认值位于(0, 0, 0)。</p>
 
+		<h3>[property:Boolean isSphere]</h3>
+		<p>
+			Read-only flag to check if a given object is of type [name].
+		</p>
+
 		<h3>[property:Float radius]</h3>
 		<p>球的半径，默认值为-1。</p>
 
diff --git a/src/math/Sphere.js b/src/math/Sphere.js
index 64a60e30da1d05..76e3d130357c8d 100644
--- a/src/math/Sphere.js
+++ b/src/math/Sphere.js
@@ -9,6 +9,8 @@ class Sphere {
 
 	constructor( center = new Vector3(), radius = - 1 ) {
 
+		this.isSphere = true;
+
 		this.center = center;
 		this.radius = radius;
 
diff --git a/test/unit/src/math/Sphere.tests.js b/test/unit/src/math/Sphere.tests.js
index 2e2887008d6058..87af6178e82245 100644
--- a/test/unit/src/math/Sphere.tests.js
+++ b/test/unit/src/math/Sphere.tests.js
@@ -30,6 +30,16 @@ export default QUnit.module( 'Maths', () => {
 		} );
 
 		// PUBLIC
+		QUnit.test( 'isSphere', ( assert ) => {
+
+			const a = new Sphere();
+			assert.ok( a.isSphere === true, 'Passed!' );
+
+			const b = new Box3();
+			assert.ok( ! b.isSphere, 'Passed!' );
+
+		} );
+
 		QUnit.test( 'set', ( assert ) => {
 
 			const a = new Sphere();