read a .we minetest schema

- use ground has maze walls

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));
+    }
+}