delete unnecessary

config.json

@@ -1,10 +1,20 @@
 {
-  "maps": {
-    "map1": {
-      "a": 123
-    },
-    "map2": {
-      "b": 456
+  "maps": [
+    {
+      "id": "map1",
+      "name": "Map 1",
+      "roads": [
+        { "x0": 0, "y0": 0, "x1": 40 },
+        { "x0": 40, "y0": 0, "y1": 30 },
+        { "x0": 40, "y0": 30, "x1": 0 },
+        { "x0": 0, "y0": 0, "y1": 30 }
+      ],
+      "buildings": [
+        { "x": 5, "y": 5, "w": 30, "h": 20 }
+      ],
+      "offices": [
+        { "id": "o0", "x": 40, "y": 30, "offsetX": 5, "offsetY": 0 }
+      ]
     }
-  }
-}
+  ]
+}