Added center to configuration with default 0,64,0 like before.

configuration.txt

@@ -116,6 +116,10 @@ defaultworld: world
 worlds:
   - name: world
     title: "World"
+    center:
+      x: 0
+      y: 64
+      z: 0
     maps:
       - class: org.dynmap.flat.FlatMap
         name: flat
@@ -147,6 +151,10 @@ worlds:
             maximumheight: 127
   - name: nether
     title: "Nether"
+    center:
+      x: 0
+      y: 64
+      z: 0
     maps:
       - class: org.dynmap.flat.FlatMap
         name: flat

src/main/java/org/dynmap/ClientConfigurationComponent.java

@@ -26,7 +26,7 @@ public class ClientConfigurationComponent extends Component {
                     s(wo, "name", wn.getString("name"));
                     s(wo, "title", wn.getString("title"));
                     s(wo, "center/x", wn.getFloat("center/x", 0.0f));
-                    s(wo, "center/y", wn.getFloat("center/y", 0.0f));
+                    s(wo, "center/y", wn.getFloat("center/y", 64.0f));
                     s(wo, "center/z", wn.getFloat("center/z", 0.0f));
                     a(t, "worlds", wo);