From fa1614f2382827e3cb8439584cdeda91a05f7ba9 Mon Sep 17 00:00:00 2001
From: Syntriax <syntriax@gmail.com>
Date: Fri, 27 Jun 2025 11:44:52 +0300
Subject: [PATCH] feat: added approximately equals methods to projection 1D and
 ray 2D

---
 Engine.Core/Primitives/Projection1D.cs | 13 +++++++++++++
 Engine.Core/Primitives/Ray2D.cs        | 13 +++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/Engine.Core/Primitives/Projection1D.cs b/Engine.Core/Primitives/Projection1D.cs
index 3a664b4..d144125 100644
--- a/Engine.Core/Primitives/Projection1D.cs
+++ b/Engine.Core/Primitives/Projection1D.cs
@@ -71,6 +71,16 @@ public readonly struct Projection1D(float min, float max)
         return false;
     }
 
+    /// <summary>
+    /// Checks if two <see cref="Projection1D"/>s are approximately equal within a specified epsilon range.
+    /// </summary>
+    /// <param name="left">The first <see cref="Projection1D"/>.</param>
+    /// <param name="right">The second <see cref="Projection1D"/>.</param>
+    /// <param name="epsilon">The epsilon range.</param>
+    /// <returns><see cref="true"/> if the <see cref="Projection1D"/>s are approximately equal; otherwise, <see cref="false"/>.</returns>
+    public static bool ApproximatelyEquals(Projection1D left, Projection1D right, float epsilon = float.Epsilon)
+        => left.Min.ApproximatelyEquals(right.Min, epsilon) && left.Max.ApproximatelyEquals(right.Max, epsilon);
+
     /// <summary>
     /// Determines whether the specified object is equal to the current <see cref="Projection1D"/>.
     /// </summary>
@@ -101,4 +111,7 @@ public static class Projection1DExtensions
 
     /// <inheritdoc cref="Projection1D.Overlaps(Projection1D, Projection1D, out float)" />
     public static bool Overlaps(this Projection1D left, Projection1D right, out float depth) => Projection1D.Overlaps(left, right, out depth);
+
+    /// <inheritdoc cref="Projection1D.ApproximatelyEquals(Projection1D, Projection1D, float)" />
+    public static bool ApproximatelyEquals(this Projection1D left, Projection1D right, float epsilon = float.Epsilon) => Projection1D.ApproximatelyEquals(left, right, epsilon);
 }
diff --git a/Engine.Core/Primitives/Ray2D.cs b/Engine.Core/Primitives/Ray2D.cs
index 721dfdd..ed57996 100644
--- a/Engine.Core/Primitives/Ray2D.cs
+++ b/Engine.Core/Primitives/Ray2D.cs
@@ -56,6 +56,16 @@ public readonly struct Ray2D(Vector2D Origin, Vector2D Direction)
         return ray.Origin + ray.Direction * dot;
     }
 
+    /// <summary>
+    /// Checks if two <see cref="Ray2D"/>s are approximately equal within a specified epsilon range.
+    /// </summary>
+    /// <param name="left">The first <see cref="Ray2D"/>.</param>
+    /// <param name="right">The second <see cref="Ray2D"/>.</param>
+    /// <param name="epsilon">The epsilon range.</param>
+    /// <returns><see cref="true"/> if the <see cref="Ray2D"/>s are approximately equal; otherwise, <see cref="false"/>.</returns>
+    public static bool ApproximatelyEquals(Ray2D left, Ray2D right, float epsilon = float.Epsilon)
+        => left.Origin.ApproximatelyEquals(right.Origin, epsilon) && left.Direction.ApproximatelyEquals(right.Direction, epsilon);
+
     /// <summary>
     /// Determines whether the specified object is equal to the current <see cref="Ray2D"/>.
     /// </summary>
@@ -89,4 +99,7 @@ public static class Ray2DExtensions
 
     /// <inheritdoc cref="Ray2D.ClosestPointTo(Ray2D, Vector2D) />
     public static Vector2D ClosestPointTo(this Ray2D ray, Vector2D point) => Ray2D.ClosestPointTo(ray, point);
+
+    /// <inheritdoc cref="Ray2D.ApproximatelyEquals(Ray2D, Ray2D, float)" />
+    public static bool ApproximatelyEquals(this Ray2D left, Ray2D right, float epsilon = float.Epsilon) => Ray2D.ApproximatelyEquals(left, right, epsilon);
 }