T Out Parameter for Get Nearest Point

Runtime/SplineImporter.cs

@@ -4,16 +4,19 @@ using System;
 using UnityEditor;
 using UnityEngine;
 using UnityEngine.Splines;
-using static SplineImporter;
-using static SplineData;
 using System.IO;
 using System.Text;
 using Unity.Mathematics;
 using System.Collections.Generic;
 
-[CustomEditor(typeof(SplineImporter))]
+namespace FrameJosh.SplineImporter
-public class SplineImporterEditor : Editor
 {
+    using static SplineImporter;
+    using static SplineData;
+
+    [CustomEditor(typeof(SplineImporter))]
+    public class SplineImporterEditor : Editor
+    {
         public override void OnInspectorGUI()
         {
             DrawDefaultInspector();
@@ -126,11 +129,11 @@ public class SplineImporterEditor : Editor
                 AssetDatabase.Refresh();
             }
         }
-}
+    }
 
-[RequireComponent(typeof(SplineContainer))]
+    [RequireComponent(typeof(SplineContainer))]
-public class SplineImporter : MonoBehaviour
+    public class SplineImporter : MonoBehaviour
-{
+    {
         public TextAsset splineData;
 
         public float scale = 1;
@@ -149,11 +152,11 @@ public class SplineImporter : MonoBehaviour
                 z = vector.y
             };
         }
-}
+    }
 
-[Serializable]
+    [Serializable]
-public class SplineData
+    public class SplineData
-{
+    {
         [Serializable]
         public struct Position
         {
@@ -185,6 +188,7 @@ public class SplineData
         }
 
         public Spline[] splines = new Spline[0];
-}
+    }
 
 #endif
+}

Runtime/SplinePlus.cs

@@ -2,13 +2,15 @@ using Unity.Mathematics;
 using UnityEngine;
 using UnityEngine.Splines;
 
-public class SplinePlus : MonoBehaviour
+namespace FrameJosh.SplineImporter
 {
+    public class SplinePlus : MonoBehaviour
+    {
         public SplineContainer splineContainer;
 
         public SplineContainer deformContainer;
 
-    public int resolution;
+        public int resolution = 1;
 
         public void Evaluate(int splineIndex, float anchor, float distance, out Vector3 position, out Quaternion rotation)
         {
@@ -30,6 +32,40 @@ public class SplinePlus : MonoBehaviour
                 EvaluateSpline(t, out position, out rotation);
         }
 
+        public void GetNearestPoint(int splineIndex, Vector3 point, out Vector3 position, out Quaternion rotation, out float t)
+        {
+            position = Vector3.zero;
+
+            rotation = Quaternion.identity;
+
+            t = 0;
+
+            float nearestDistance = Mathf.Infinity;
+
+            for (int i = 0; i < splineContainer.Splines.Count; i++)
+            {
+                int resolutionScale = Mathf.CeilToInt(splineContainer.Splines[i].GetLength()) * resolution;
+
+                for (float j = 0; j <= resolutionScale; j++)
+                {
+                    Evaluate(i, j / resolutionScale, 0, out Vector3 thisPosition, out Quaternion thisRotation);
+
+                    float thisDistance = Vector3.Distance(point, thisPosition);
+
+                    if (thisDistance < nearestDistance)
+                    {
+                        position = thisPosition;
+
+                        rotation = thisRotation;
+
+                        t = j / resolutionScale;
+
+                        nearestDistance = thisDistance;
+                    }
+                }
+            }
+        }
+
         public void GetNearestPoint(Vector3 point, out Vector3 position, out Quaternion rotation)
         {
             position = Vector3.zero;
@@ -168,7 +204,7 @@ public class SplinePlus : MonoBehaviour
             upVector = splineContainer.transform.TransformDirection(upVector);
         }
 
-    void OnDrawGizmos()
+        void OnDrawGizmosSelected()
         {
             if (!splineContainer || !deformContainer) return;
 
@@ -192,4 +228,5 @@ public class SplinePlus : MonoBehaviour
                 }
             }
         }
+    }
 }

Samples/SplineEvaluateDebug.cs

@@ -1,8 +1,10 @@
 using Unity.Mathematics;
 using UnityEngine;
 
-public class SplineEvaluateDebug : MonoBehaviour
+namespace FrameJosh.SplineImporter.Samples
 {
+    public class SplineEvaluateDebug : MonoBehaviour
+    {
         [SerializeField] SplinePlus splinePlus;
 
         [SerializeField] float anchor;
@@ -45,4 +47,5 @@ public class SplineEvaluateDebug : MonoBehaviour
 
             Gizmos.DrawRay(position, transform.forward * matrixSize);
         }
+    }
 }

Samples/SplineNearestPointDebug.cs

@@ -1,7 +1,9 @@
 using UnityEngine;
 
-public class SplineNearestPointDebug : MonoBehaviour
+namespace FrameJosh.SplineImporter.Samples
 {
+    public class SplineNearestPointDebug : MonoBehaviour
+    {
         [SerializeField] SplinePlus splinePlus;
 
         [SerializeField] float cubeSize;
@@ -14,4 +16,5 @@ public class SplineNearestPointDebug : MonoBehaviour
 
             Gizmos.DrawCube(position, Vector3.one * cubeSize);
         }
+    }
 }