add empty exit url

maps/Lerngruppenevent/entry.json

@@ -9,6 +9,33 @@
  "height":50,
  "infinite":true,
  "layers":[
+        {
+         "chunks":[
+                {
+                 "data":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0],
+                 "height":16,
+                 "width":16,
+                 "x":0,
+                 "y":-16
+                }],
+         "height":16,
+         "id":8,
+         "name":"exit",
+         "opacity":1,
+         "properties":[
+                {
+                 "name":"exitUrl",
+                 "type":"string",
+                 "value":""
+                }],
+         "startx":0,
+         "starty":-16,
+         "type":"tilelayer",
+         "visible":true,
+         "width":16,
+         "x":0,
+         "y":0
+        }, 
         {
          "chunks":[
                 {
@@ -151,7 +178,7 @@
          "height":32,
          "id":7,
          "name":"collision",
-         "opacity":1,
+         "opacity":0,
          "startx":-16,
          "starty":-16,
          "type":"tilelayer",
@@ -160,7 +187,7 @@
          "x":0,
          "y":0
         }],
- "nextlayerid":8,
+ "nextlayerid":9,
  "nextobjectid":1,
  "orientation":"orthogonal",
  "renderorder":"right-down",