Added KD tree

2025-02-10 14:06:14 +01:00
parent 854d14af03
commit ea24f92a2f
38 changed files with 2639 additions and 89 deletions
--- a/Runtime/KDTree/KDBounds.cs
+++ b/Runtime/KDTree/KDBounds.cs
@@ -0,0 +1,73 @@
+/*MIT License
+
+Copyright(c) 2018 Vili Volčini / viliwonka
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+using UnityEngine;
+using UnityEditor;
+
+namespace DataStructures.ViliWonka.KDTree {
+
+    public struct KDBounds {
+
+        public Vector3 min;
+        public Vector3 max;
+
+        public Vector3 size {
+
+            get {
+                return max - min;
+            }
+        }
+
+        // returns unity bounds
+        public Bounds Bounds {
+
+            get {
+                return new Bounds(
+                    (min + max) / 2,
+                    (max - min)
+                );
+            }
+        }
+
+        
+        public Vector3 ClosestPoint(Vector3 point) {
+
+            // X axis
+            if(point.x < min.x) point.x = min.x;
+            else 
+            if(point.x > max.x) point.x = max.x;
+            
+            // Y axis
+            if(point.y < min.y) point.y = min.y;
+            else 
+            if(point.y > max.y) point.y = max.y;
+            
+            // Z axis
+            if(point.z < min.z) point.z = min.z;
+            else 
+            if(point.z > max.z) point.z = max.z;
+            
+            return point;
+        }
+    }
+}