diff --git a/java/org/artisanlogiciel/games/maze/LabyModel.java b/java/org/artisanlogiciel/games/maze/LabyModel.java
index 8930dae..358fd1a 100644
--- a/java/org/artisanlogiciel/games/maze/LabyModel.java
+++ b/java/org/artisanlogiciel/games/maze/LabyModel.java
@@ -35,6 +35,8 @@ public class LabyModel implements WallsProvider {
     public final static short RIGHT = Brick.RIGHT << FLAGLENGTH | DIRECTION | HORIZONTAL | POSITIVE;
     public final static short UP = Brick.UP << FLAGLENGTH | DIRECTION | VERTICAL | NEGATIVE;
 
+    public final static short EMPTY = LEFT | DOWN | RIGHT | UP ;
+
     // flag when a wall should be open to access this for entry
     public final static short ENTRY = Brick.ENTRY << FLAGLENGTH;
     // flag when a wall should be open to access this for exit
@@ -100,7 +102,7 @@ public class LabyModel implements WallsProvider {
     /**
      * construct LabyModel from an InputStream, yet only "raw" is supported
      **/
-    public LabyModel(int width, int heigh, short [][] t) {
+    public LabyModel(int width, int height, short [][] t) {
         random = null;
         this.width = width;
         this.height = height;
diff --git a/java/org/artisanlogiciel/games/maze/gui/Display.java b/java/org/artisanlogiciel/games/maze/gui/Display.java
index f6649bb..c4a81e4 100644
--- a/java/org/artisanlogiciel/games/maze/gui/Display.java
+++ b/java/org/artisanlogiciel/games/maze/gui/Display.java
@@ -368,11 +368,25 @@ implements StatusListener
 
                 }
             };
-            JButton loadOsmButton = new JButton(labels.getString("load" ) + " Osm");
-            loadOsmButton.addActionListener(loadOsmAction);
+            loadMenu.add(newLoadButton("osm", loadOsmAction));
 
-            loadMenu.add(loadOsmButton);
+            loadMenu.add(newLoadButton("we",
+                    new AbstractAction() {
+                        public void actionPerformed(ActionEvent evt) {
+                            //
+                            addStatus("load WoldEdit");
 
+                            String filename = loadName.getText();
+
+                            if ((filename.length() > 0)) {
+                                setMazeName(filename);
+                                loadWorldEdit(false);
+                                refresh();
+                            }
+
+                        }
+                    }
+                    ));
             return loadMenu;
         }
 
@@ -459,12 +473,20 @@ implements StatusListener
 
         }
 
-        private JButton newSaveButton(String format, Action action) {
-            final JButton saveTextButton = new JButton(labels.getString("save") + " " + format);
+        private JButton newActionButton(String actionName, String format, Action action) {
+            final JButton saveTextButton = new JButton(labels.getString(actionName) + " " + format);
             saveTextButton.addActionListener(action);
             return saveTextButton;
         }
 
+        private JButton newSaveButton(String format, Action action) {
+            return newActionButton("save",format,action);
+        }
+
+        private JButton newLoadButton(String format, Action action) {
+            return newActionButton("load",format,action);
+        }
+
         private JPanel createResolveQuitBar() {
             JPanel resolveQuitBar = new JPanel(new FlowLayout());
 
@@ -759,6 +781,29 @@ implements StatusListener
         }
     }
 
+    private void loadWorldEdit(boolean add) {
+        if ( maze != null ) {
+                    File infile = new File(params.getSaveDir(), params.getName() + ".we");
+                    FileInputStream inputStream = null;
+                    try {
+                        inputStream = new FileInputStream(infile);
+                        model = new MazePersistWorldEdit().parseInputStream("we",inputStream);
+                    } catch (IOException io) {
+                        io.printStackTrace(System.err);
+                        statusField.setText("[ERROR] Can't load " + infile.getAbsolutePath());
+                    } finally {
+                        if (inputStream != null) {
+                            // cleanup
+                            try {
+                                inputStream.close();
+                            } catch (Exception any) {
+                                // don't care really
+                            }
+                        }
+                    }
+        }
+    }
+
     private JButton addDirection(final JPanel panel, final String direction, String key, Action goAction) {
         String actionName = "go" + direction;
         JButton button = new JButton(direction);
diff --git a/java/org/artisanlogiciel/games/maze/persist/MazePersistWorldEdit.java b/java/org/artisanlogiciel/games/maze/persist/MazePersistWorldEdit.java
index 2bc2c9a..99f296a 100644
--- a/java/org/artisanlogiciel/games/maze/persist/MazePersistWorldEdit.java
+++ b/java/org/artisanlogiciel/games/maze/persist/MazePersistWorldEdit.java
@@ -2,9 +2,8 @@ package org.artisanlogiciel.games.maze.persist;
 
 import org.artisanlogiciel.games.maze.Brick;
 import org.artisanlogiciel.games.maze.LabyModel;
-import org.artisanlogiciel.games.minetest.Material;
-import org.artisanlogiciel.games.minetest.Node;
-import org.artisanlogiciel.games.minetest.WorlEditGenerator;
+import org.artisanlogiciel.games.minetest.*;
+
 import java.io.*;
 
 import static org.artisanlogiciel.games.minetest.Material.GRASS_MATERIAL;
@@ -18,6 +17,10 @@ public class MazePersistWorldEdit {
         this.model = model;
     }
 
+    public MazePersistWorldEdit() {
+        //
+    }
+
     void addNode(Node node)
     {
         if (node != null )
@@ -110,13 +113,71 @@ public class MazePersistWorldEdit {
         // TODO using WorldEditGenerator
         if ((pFormat == null) || (pFormat.equals("we"))) {
             // DataInputStream in = new DataInputStream(pIn);
-            throw new IOException("Format " + pFormat + " Not yet implemented.");
-            // should be at end of stream ? Not necessary can stream multiple
-            // labs ( or tiling ).
+            WorldEditReader reader = new WorldEditReader(pIn);
+            // skip header "5.return " hacky way ...
+            byte[] b = new byte[9];
+            pIn.read(b);
+            // System.out.println(new String(b));
+            World world = reader.read();
+            // need to convert world into a LabyModel ...
+            // get level z = 0
+            Slice ground = world.getSlice(0);
+            if ( ground != null )
+            {
+                model = getModelFromSlice(ground);
+                System.out.println(model);
+            }
+            else
+            {
+                System.err.println("no ground !");
+            }
+            return model;
         } else {
             throw new IOException("Format " + pFormat + " Not yet implemented.");
         }
 
     }
 
+    private LabyModel getModelFromSlice(Slice ground) {
+        // TODO
+        if ( ! ground.isEmpty() )
+        {
+            int width = ground.getRangeSize();
+            Range rawRange = ground.getRawRange();
+            int height =  rawRange.getRangeSize();
+            int up = rawRange.getMin();
+
+            short [][] t = new short[width][height];
+            int left = ground.getMin();
+            for ( int x = ground.getMin() ; x < ground.getMax() ; x ++)
+            {
+                // work on raws ...
+                Raw raw = ground.getRaw(new Integer(x));
+                if ( raw != null )
+                {
+                    for ( int y = raw.getMin() ; y < raw.getMax(); y ++) {
+                        // full closed place ... ( lazzy ... )
+                        Node node = raw.getNode(y);
+                        short move = LabyModel.EMPTY | 32;
+                        if ( node != null ) {
+                            move = 0;
+                        }
+                        int newx = x - left;
+                        int newy = y - up;
+                        System.out.println( " " + newx + " " + newy  + " =" + move );
+                        t[newx][newy] = move;
+                    }
+                }
+            }
+            model = new LabyModel(width,height, t);
+            return model;
+        }
+        else
+        {
+            System.out.println("empty ground");
+        }
+
+        return null;
+    }
+
 }
diff --git a/java/org/artisanlogiciel/games/minetest/Material.java b/java/org/artisanlogiciel/games/minetest/Material.java
index 429aaf8..fc4db5e 100644
--- a/java/org/artisanlogiciel/games/minetest/Material.java
+++ b/java/org/artisanlogiciel/games/minetest/Material.java
@@ -19,6 +19,6 @@ public class Material {
 
     @Override
     public String toString() {
-        return "name";
+        return name;
     }
 }
diff --git a/java/org/artisanlogiciel/games/minetest/Node.java b/java/org/artisanlogiciel/games/minetest/Node.java
index 75b5b09..8069ff9 100644
--- a/java/org/artisanlogiciel/games/minetest/Node.java
+++ b/java/org/artisanlogiciel/games/minetest/Node.java
@@ -1,5 +1,7 @@
 package org.artisanlogiciel.games.minetest;
 
+import java.util.HashMap;
+
 public class Node {
     int x;
     int y;
@@ -20,6 +22,16 @@ public class Node {
         this.material = Material.DEFAULT;
     }
 
+    public Node(HashMap<String, Object> map)
+            throws ClassCastException, NullPointerException
+    {
+        // FIXME WARNING HACK reverse x and z ...
+        x = ((Integer) map.get("x")).intValue();
+        y = ((Integer) map.get("z")).intValue();
+        z = ((Integer) map.get("y")).intValue();
+        material = Material.getMaterialByName( (String) map.get("name"));
+    }
+
     public int getX() {
         return x;
     }
@@ -35,4 +47,14 @@ public class Node {
     public Material getMaterial() {
         return material;
     }
+
+    @Override
+    public String toString() {
+        return "Node{" +
+                "x=" + x +
+                ", y=" + y +
+                ", z=" + z +
+                ", material=" + material +
+                '}';
+    }
 }
diff --git a/java/org/artisanlogiciel/games/minetest/Range.java b/java/org/artisanlogiciel/games/minetest/Range.java
new file mode 100644
index 0000000..e29006a
--- /dev/null
+++ b/java/org/artisanlogiciel/games/minetest/Range.java
@@ -0,0 +1,71 @@
+package org.artisanlogiciel.games.minetest;
+
+public class Range {
+    int min;
+    int max;
+
+    public int getMin() {
+        return min;
+    }
+
+    public int getMax() {
+        return max;
+    }
+
+    public Range()
+    {
+        // invalid range, means empty interval
+        min = 0;
+        max = -1;
+    }
+
+    public boolean isEmpty()
+    {
+        return ( min > max );
+    }
+
+    boolean union(Range other)
+    {
+        boolean update = false;
+        if ( ! other.isEmpty()) {
+            update = updateBounds(other.getMin()) | updateBounds(other.getMax());
+        }
+        return update;
+    }
+
+    boolean updateBounds(int v)
+    {
+        boolean update = false;
+
+        // special case where previous range was unset ( min > max ).
+        if ( isEmpty() )
+        {
+            min = v;
+            max = v;
+            return true;
+        }
+        if ( v < min )
+        {
+            update = true;
+            min = v;
+        }
+        if ( v > max )
+        {
+            update = true;
+            max = v;
+        }
+        return update;
+    }
+
+
+    public int getRangeSize() {
+        if (isEmpty())
+        {
+            return 0;
+        }
+        else
+        {
+            return max - min;
+        }
+    }
+}
diff --git a/java/org/artisanlogiciel/games/minetest/Raw.java b/java/org/artisanlogiciel/games/minetest/Raw.java
new file mode 100644
index 0000000..4dd5f64
--- /dev/null
+++ b/java/org/artisanlogiciel/games/minetest/Raw.java
@@ -0,0 +1,25 @@
+package org.artisanlogiciel.games.minetest;
+
+import java.util.HashMap;
+
+public class Raw
+extends  Range {
+    // y is index
+    public HashMap<Integer,Node> nodes;
+
+    public Raw() {
+        super();
+        nodes = new HashMap<>();
+    }
+
+    public void addNode(Integer y, Node node)
+    {
+        updateBounds(y.intValue());
+        nodes.put(y,node);
+    }
+
+    public Node getNode( int y)
+    {
+        return nodes.get(new Integer(y));
+    }
+}
diff --git a/java/org/artisanlogiciel/games/minetest/Slice.java b/java/org/artisanlogiciel/games/minetest/Slice.java
new file mode 100644
index 0000000..6ad3879
--- /dev/null
+++ b/java/org/artisanlogiciel/games/minetest/Slice.java
@@ -0,0 +1,50 @@
+package org.artisanlogiciel.games.minetest;
+
+import java.util.HashMap;
+
+public class Slice
+    extends Range
+{
+
+    // x is index
+    HashMap<Integer, Raw> raws;
+
+    public Range getRawRange() {
+        return rawRange;
+    }
+
+    Range rawRange;
+
+    public Slice() {
+        super();
+        raws = new HashMap<>();
+        rawRange = new Range();
+    }
+
+    public void addNodeInRaw(Integer x, Node node) {
+        updateBounds(x.intValue());
+        Raw r = raws.get(x);
+        if ( r == null )
+        {
+            r = new Raw();
+            raws.put(x,r);
+        }
+        r.addNode(new Integer(node.getY()), node);
+        rawRange.union(r);
+    }
+
+    public Node getNode(int x, int y)
+    {
+        Raw r = raws.get(x);
+        if ( r == null )
+        {
+            return null;
+        }
+        return r.getNode(y);
+    }
+
+    public Raw getRaw(Integer x)
+    {
+        return raws.get(x);
+    }
+}
diff --git a/java/org/artisanlogiciel/games/minetest/WorlEditGenerator.java b/java/org/artisanlogiciel/games/minetest/WorlEditGenerator.java
index 30efbc5..e1b2b65 100644
--- a/java/org/artisanlogiciel/games/minetest/WorlEditGenerator.java
+++ b/java/org/artisanlogiciel/games/minetest/WorlEditGenerator.java
@@ -1,5 +1,8 @@
 package org.artisanlogiciel.games.minetest;
 
+/**
+ * generate directly lua maps ( no intermediate LuaObject ).
+ */
 public class WorlEditGenerator
 {
 
diff --git a/java/org/artisanlogiciel/games/minetest/World.java b/java/org/artisanlogiciel/games/minetest/World.java
new file mode 100644
index 0000000..30b9d68
--- /dev/null
+++ b/java/org/artisanlogiciel/games/minetest/World.java
@@ -0,0 +1,79 @@
+package org.artisanlogiciel.games.minetest;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+
+public class World
+    extends Range
+{
+
+    List<Node> nodes;
+
+    // z range
+    HashMap<Integer,Slice> zSlices;
+
+    public World()
+    {
+        super();
+        nodes = new ArrayList<>();
+        zSlices = new HashMap<>();
+    }
+
+    public void addNode(Node node)
+    {
+        nodes.add(node);
+        addNodeInSlice(new Integer(node.getZ()),node);
+    }
+
+    private void addNodeInSlice(Integer z, Node node) {
+        updateBounds(z.intValue());
+        Slice s = zSlices.get(z);
+        Integer x = new Integer(node.getX());
+        if ( s == null )
+        {
+            s = new Slice();
+            zSlices.put(z,s);
+        }
+        s.addNodeInRaw(x,node);
+
+    }
+
+    public void addList(List<Object> objectList)
+    {
+        for (Object o : objectList)
+        {
+            if ( o instanceof HashMap )
+            {
+                HashMap<String,Object> map = (HashMap<String,Object>) o;
+                Node node = new Node(map);
+                addNode(node);
+            }
+        }
+    }
+
+    public Node getNode(int x, int y, int z)
+    {
+        Slice s = zSlices.get(new Integer(z));
+        if ( s == null )
+        {
+            return null;
+        }
+        else
+        {
+            return s.getNode(x,y);
+        }
+    }
+
+    public Slice getSlice(int z)
+    {
+        return zSlices.get(new Integer(z));
+    }
+
+    @Override
+    public String toString() {
+        return "World{" +
+                "nodes=" + nodes +
+                '}';
+    }
+}
diff --git a/java/org/artisanlogiciel/games/minetest/WorldEditReader.java b/java/org/artisanlogiciel/games/minetest/WorldEditReader.java
new file mode 100644
index 0000000..0c2c7c8
--- /dev/null
+++ b/java/org/artisanlogiciel/games/minetest/WorldEditReader.java
@@ -0,0 +1,51 @@
+package org.artisanlogiciel.games.minetest;
+
+import org.artisanlogiciel.lua.CharProvider;
+import org.artisanlogiciel.lua.LuaObject;
+import org.artisanlogiciel.lua.Parser;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.List;
+
+public class WorldEditReader {
+
+    InputStream input;
+
+    public WorldEditReader(InputStream pIn)
+    {
+        input = pIn;
+    }
+
+    public World read()
+            throws IOException
+    {
+        World world = new World();
+
+
+        BufferedReader in = new BufferedReader(new InputStreamReader(input));
+        byte b[] = new byte[128*1024];
+        input.read(b);
+        String contents = new String(b);
+        in.close();
+
+        System.out.println(contents);
+
+        CharProvider reader = new CharProvider(contents);
+        Parser parser = new Parser(reader);
+        LuaObject result = parser.parse();
+        if (result != null) {
+            System.out.println(result.toString());
+            Object we = result.wrapToJava();
+            System.out.println(we);
+            world.addList( (List<Object>) we);
+            System.out.println(world);
+        } else {
+            System.err.println("result null");
+        }
+        return world;
+    }
+
+}
diff --git a/java/org/artisanlogiciel/lua/LuaTuple.java b/java/org/artisanlogiciel/lua/LuaTuple.java
index 32cf9d6..c16ddf4 100644
--- a/java/org/artisanlogiciel/lua/LuaTuple.java
+++ b/java/org/artisanlogiciel/lua/LuaTuple.java
@@ -22,8 +22,8 @@ public class LuaTuple
 
     public String addInMap(HashMap<String,Object> map)
     {
-        String key = items.get(0).toString();
-        Object value = items.get(1);
+        String key = (String) items.get(0).wrapToJava();
+        Object value = items.get(1).wrapToJava();
 
         map.put(key,value);
 
diff --git a/java/org/artisanlogiciel/lua/Parser.java b/java/org/artisanlogiciel/lua/Parser.java
index b53a924..ca38968 100644
--- a/java/org/artisanlogiciel/lua/Parser.java
+++ b/java/org/artisanlogiciel/lua/Parser.java
@@ -1,5 +1,7 @@
 package org.artisanlogiciel.lua;
 
+import org.artisanlogiciel.games.minetest.World;
+
 import java.util.ArrayList;
 import java.util.List;
 
@@ -128,7 +130,7 @@ public class Parser {
         return new LuaNumber(number);
     }
 
-    LuaObject parse()
+    public LuaObject parse()
     {
         char c = 0;
         while ( ((c = getNextchar()) != 0 ) && ( errors == null ))
@@ -223,6 +225,9 @@ public class Parser {
             System.out.println(result.toString());
             Object we = result.wrapToJava();
             System.out.println(we);
+            World world = new World();
+            world.addList( (List<Object>) we);
+            System.out.println(world);
         }
         else
         {