Init

Assets/ThirdParty/DestroyIt/Scripts/Runtime/Extensions/TerrainExtensions.cs

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+using UnityEngine;
+// ReSharper disable SuggestVarOrType_Elsewhere
+// ReSharper disable SuggestVarOrType_SimpleTypes
+// ReSharper disable ForCanBeConvertedToForeach
+// ReSharper disable SuggestVarOrType_BuiltInTypes
+
+namespace DestroyIt
+{
+    public static class TerrainExtensions
+    {
+        public static TerrainTree ClosestTreeToPoint(this Terrain terrain, Vector3 point)
+        {
+            TreeInstance[] trees = terrain.terrainData.treeInstances;
+            if (trees.Length == 0) return null;
+
+            TerrainTree closestTree = new TerrainTree {Index = -1};
+            float closestTreeDist = float.MaxValue;
+
+            for (int i = 0; i < trees.Length; i++)
+            {
+                Vector3 treePos = Vector3.Scale(trees[i].position, terrain.terrainData.size) + terrain.transform.position;
+                float treeDist = Vector3.Distance(treePos, point);
+
+                if (treeDist < closestTreeDist)
+                {
+                    closestTreeDist = treeDist;
+                    closestTree.Index = i;
+                    closestTree.Position = treePos;
+                    closestTree.TreeInstance = trees[i];
+                }
+            }
+
+            return closestTree;
+        }
+
+        public static Vector3 WorldPositionOfTree(this Terrain terrain, int treeIndex)
+        {
+            TreeInstance[] trees = terrain.terrainData.treeInstances;
+            if (trees.Length == 0) return Vector3.zero;
+
+            return Vector3.Scale(trees[treeIndex].position, terrain.terrainData.size) + terrain.transform.position;
+        }
+    }
+}