From 5e7282c27d6df67318e08a7b70c1d54d6c6717d9 Mon Sep 17 00:00:00 2001
From: victornor <1-1@hotmail.dk>
Date: Mon, 20 Mar 2023 13:33:14 +0100
Subject: [PATCH 1/3] fix: GetPosition when Segments is null

---
 Runtime/Scripts/Primitives/UILineRenderer.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Runtime/Scripts/Primitives/UILineRenderer.cs b/Runtime/Scripts/Primitives/UILineRenderer.cs
index d3b5d3d..b0db451 100644
--- a/Runtime/Scripts/Primitives/UILineRenderer.cs
+++ b/Runtime/Scripts/Primitives/UILineRenderer.cs
@@ -419,7 +419,7 @@ namespace UnityEngine.UI.Extensions
             {
                 return Segments[segmentIndex - 1][index - 1];
             }
-            else if (Segments.Count > 0)
+            else if (Segments?.Count > 0)
             {
                 var segmentIndexCount = 0;
                 var indexCount = index;
@@ -480,4 +480,4 @@ namespace UnityEngine.UI.Extensions
             }
         }
     }
-}
\ No newline at end of file
+}

From ba7b21fdae7b6b86f46070738386c35bfc5d6aba Mon Sep 17 00:00:00 2001
From: Victor <1-1@hotmail.dk>
Date: Mon, 20 Mar 2023 13:42:33 +0100
Subject: [PATCH 2/3] feat: add CalculatePointOnCurve for linerenderer

---
 Runtime/Scripts/Primitives/UILineRenderer.cs | 23 ++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/Runtime/Scripts/Primitives/UILineRenderer.cs b/Runtime/Scripts/Primitives/UILineRenderer.cs
index b0db451..902a40c 100644
--- a/Runtime/Scripts/Primitives/UILineRenderer.cs
+++ b/Runtime/Scripts/Primitives/UILineRenderer.cs
@@ -443,6 +443,29 @@ namespace UnityEngine.UI.Extensions
             }
         }
 
+		/// <summary>
+        /// Calculates the position of a point on the curve, given t (0-1), start point, control points and end point.
+        /// </summary>
+        /// <param name="t">Required Percentage between start and end point, in the range 0 to 1</param>
+		/// <param name="p1">Required Starting point</param>
+		/// <param name="p1">Required Control point 1</param>
+		/// <param name="p1">Required Control point 2</param>
+		/// <param name="p1">Required End point</param>
+        /// <returns>Vector2 position of point on curve at t percentage between p1 and p4</returns>
+		private Vector2 CalculatePointOnCurve(float t, Vector2 p1, Vector2 p2, Vector2 p3, Vector2 p4)
+        {
+            var t2 = t * t;
+            var t3 = t2 * t;
+
+            var x = p1.x + (-p1.x * 3 + t * (3 * p1.x - p1.x * t)) * t + (3 * p2.x + t * (-6 * p2.x + p2.x * 3 * t)) * t +
+                    (p3.x * 3 - p3.x * 3 * t) * t2 + p4.x * t3;
+            
+            var y = p1.y + (-p1.y * 3 + t * (3 * p1.y - p1.y * t)) * t + (3 * p2.y + t * (-6 * p2.y + p2.y * 3 * t)) * t +
+                    (p3.y * 3 - p3.y * 3 * t) * t2 + p4.y * t3;
+
+            return new Vector2(x, y);
+        }
+
         /// <summary>
         /// Get the Vector2 position of a line within a specific segment
         /// </summary>

From 7127f8bca746df5ebd34d9f76b823beec3e1072b Mon Sep 17 00:00:00 2001
From: Victor <1-1@hotmail.dk>
Date: Mon, 20 Mar 2023 13:43:43 +0100
Subject: [PATCH 3/3] chore: make CalculatePointOnCurve public

---
 Runtime/Scripts/Primitives/UILineRenderer.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Runtime/Scripts/Primitives/UILineRenderer.cs b/Runtime/Scripts/Primitives/UILineRenderer.cs
index 902a40c..7225145 100644
--- a/Runtime/Scripts/Primitives/UILineRenderer.cs
+++ b/Runtime/Scripts/Primitives/UILineRenderer.cs
@@ -452,7 +452,7 @@ namespace UnityEngine.UI.Extensions
 		/// <param name="p1">Required Control point 2</param>
 		/// <param name="p1">Required End point</param>
         /// <returns>Vector2 position of point on curve at t percentage between p1 and p4</returns>
-		private Vector2 CalculatePointOnCurve(float t, Vector2 p1, Vector2 p2, Vector2 p3, Vector2 p4)
+		public Vector2 CalculatePointOnCurve(float t, Vector2 p1, Vector2 p2, Vector2 p3, Vector2 p4)
         {
             var t2 = t * t;
             var t3 = t2 * t;