--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/csharp/jp.ac.u-ryukyu.ie.cr/jungle-main/store/impl/DefaultTreeEditor.cs	Sun Oct 23 07:40:50 2016 +0900
@@ -0,0 +1,58 @@
+using UnityEngine;
+using System.Collections;
+using System.Collections.Generic;
+public class DefaultTreeEditor : TreeEditor {
+	private Traverser traverser;
+	public DefaultTreeEditor(Traverser traverser){
+		this.traverser = traverser;
+	}
+
+	public Either<Error,LoggingNode> edit(TreeNode root,NodePath path, NodeEditor editor){
+		DefaultEvaluator e = new DefaultEvaluator (path);
+		Either<Error, Traversal> either = traverser.traverse (root, e);
+
+		if (either.isA ()) {
+			return DefaultEither<Error, LoggingNode>.newA (either.a ());
+		}
+		Traversal t = either.b ();
+		return clone (t, editor);
+	}
+
+	private Either<Error, LoggingNode> clone(Traversal t, NodeEditor editor){
+		List<Direction<TreeNode>> path = new List<Direction<TreeNode>> ();
+
+		foreach (Direction<TreeNode> direction in t) {
+			path = path.addLast (direction);
+		}
+
+		Direction<TreeNode> targetDirection = path.headList ();
+		TreeNode target = targetDirection.getTarget ();
+		Either<Error, LoggingNode> either = editor.edit (target);
+		if (either.isA ()) {
+			return DefaultEither<Error, LoggingNode>.newA (either.a ());
+		}
+
+		LoggingNode newWrap = either.b ();
+
+		int pos = targetDirection.getPosition ();
+		TreeNode child = newWrap.getWrap ();
+
+		foreach (Direction<TreeNode> parentDirection in path.deleteHead()) {
+			TreeNodeChildren chs = parentDirection.getTarget ().getChildren ();
+
+			Either<Error, TreeNode> ret = chs.replaceNode (pos, child);
+			if (ret.isA ()) {
+				return DefaultEither<Error, LoggingNode>.newA (ret.a ());
+			}
+
+			child = ret.b ();
+			pos = parentDirection.getPosition ();
+		}
+
+		TreeNode newRoot = child;
+		LoggingNode logNode = editor.wrap (newRoot, newWrap.getOperationLog ());
+		return DefaultEither<Error, LoggingNode>.newB (logNode);
+
+	}
+
+}