From 14c16746f3c81719e061da43fb89ed1b744bd121 Mon Sep 17 00:00:00 2001
From: Raul Santos <raulsntos@gmail.com>
Date: Fri, 13 Jan 2023 18:49:13 +0100
Subject: Add `IsZeroApprox` to C# vectors

---
 modules/mono/glue/GodotSharp/GodotSharp/Core/Mathf.cs   |  5 +++--
 modules/mono/glue/GodotSharp/GodotSharp/Core/Vector2.cs | 12 ++++++++++++
 modules/mono/glue/GodotSharp/GodotSharp/Core/Vector3.cs | 12 ++++++++++++
 modules/mono/glue/GodotSharp/GodotSharp/Core/Vector4.cs | 12 ++++++++++++
 4 files changed, 39 insertions(+), 2 deletions(-)

(limited to 'modules/mono')

diff --git a/modules/mono/glue/GodotSharp/GodotSharp/Core/Mathf.cs b/modules/mono/glue/GodotSharp/GodotSharp/Core/Mathf.cs
index 3f9e986f62..cef31a7679 100644
--- a/modules/mono/glue/GodotSharp/GodotSharp/Core/Mathf.cs
+++ b/modules/mono/glue/GodotSharp/GodotSharp/Core/Mathf.cs
@@ -460,10 +460,11 @@ namespace Godot
         }
 
         /// <summary>
-        /// Returns <see langword="true"/> if <paramref name="s"/> is approximately zero.
+        /// Returns <see langword="true"/> if <paramref name="s"/> is zero or almost zero.
         /// The comparison is done using a tolerance calculation with <see cref="Epsilon"/>.
         ///
-        /// This method is faster than using <see cref="IsEqualApprox(real_t, real_t)"/> with one value as zero.
+        /// This method is faster than using <see cref="IsEqualApprox(real_t, real_t)"/> with
+        /// one value as zero.
         /// </summary>
         /// <param name="s">The value to check.</param>
         /// <returns>A <see langword="bool"/> for whether or not the value is nearly zero.</returns>
diff --git a/modules/mono/glue/GodotSharp/GodotSharp/Core/Vector2.cs b/modules/mono/glue/GodotSharp/GodotSharp/Core/Vector2.cs
index 4c60080ee9..0760f1668f 100644
--- a/modules/mono/glue/GodotSharp/GodotSharp/Core/Vector2.cs
+++ b/modules/mono/glue/GodotSharp/GodotSharp/Core/Vector2.cs
@@ -988,6 +988,18 @@ namespace Godot
             return Mathf.IsEqualApprox(x, other.x) && Mathf.IsEqualApprox(y, other.y);
         }
 
+        /// <summary>
+        /// Returns <see langword="true"/> if this vector's values are approximately zero,
+        /// by running <see cref="Mathf.IsZeroApprox(real_t)"/> on each component.
+        /// This method is faster than using <see cref="IsEqualApprox"/> with one value
+        /// as a zero vector.
+        /// </summary>
+        /// <returns>Whether or not the vector is approximately zero.</returns>
+        public readonly bool IsZeroApprox()
+        {
+            return Mathf.IsZeroApprox(x) && Mathf.IsZeroApprox(y);
+        }
+
         /// <summary>
         /// Serves as the hash function for <see cref="Vector2"/>.
         /// </summary>
diff --git a/modules/mono/glue/GodotSharp/GodotSharp/Core/Vector3.cs b/modules/mono/glue/GodotSharp/GodotSharp/Core/Vector3.cs
index fefdee33a5..e000e3994d 100644
--- a/modules/mono/glue/GodotSharp/GodotSharp/Core/Vector3.cs
+++ b/modules/mono/glue/GodotSharp/GodotSharp/Core/Vector3.cs
@@ -1059,6 +1059,18 @@ namespace Godot
             return Mathf.IsEqualApprox(x, other.x) && Mathf.IsEqualApprox(y, other.y) && Mathf.IsEqualApprox(z, other.z);
         }
 
+        /// <summary>
+        /// Returns <see langword="true"/> if this vector's values are approximately zero,
+        /// by running <see cref="Mathf.IsZeroApprox(real_t)"/> on each component.
+        /// This method is faster than using <see cref="IsEqualApprox"/> with one value
+        /// as a zero vector.
+        /// </summary>
+        /// <returns>Whether or not the vector is approximately zero.</returns>
+        public readonly bool IsZeroApprox()
+        {
+            return Mathf.IsZeroApprox(x) && Mathf.IsZeroApprox(y) && Mathf.IsZeroApprox(z);
+        }
+
         /// <summary>
         /// Serves as the hash function for <see cref="Vector3"/>.
         /// </summary>
diff --git a/modules/mono/glue/GodotSharp/GodotSharp/Core/Vector4.cs b/modules/mono/glue/GodotSharp/GodotSharp/Core/Vector4.cs
index 3191e8adc0..dc2380c083 100644
--- a/modules/mono/glue/GodotSharp/GodotSharp/Core/Vector4.cs
+++ b/modules/mono/glue/GodotSharp/GodotSharp/Core/Vector4.cs
@@ -856,6 +856,18 @@ namespace Godot
             return Mathf.IsEqualApprox(x, other.x) && Mathf.IsEqualApprox(y, other.y) && Mathf.IsEqualApprox(z, other.z) && Mathf.IsEqualApprox(w, other.w);
         }
 
+        /// <summary>
+        /// Returns <see langword="true"/> if this vector's values are approximately zero,
+        /// by running <see cref="Mathf.IsZeroApprox(real_t)"/> on each component.
+        /// This method is faster than using <see cref="IsEqualApprox"/> with one value
+        /// as a zero vector.
+        /// </summary>
+        /// <returns>Whether or not the vector is approximately zero.</returns>
+        public readonly bool IsZeroApprox()
+        {
+            return Mathf.IsZeroApprox(x) && Mathf.IsZeroApprox(y) && Mathf.IsZeroApprox(z) && Mathf.IsZeroApprox(w);
+        }
+
         /// <summary>
         /// Serves as the hash function for <see cref="Vector4"/>.
         /// </summary>
-- 
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