"Legacy" unlock loading

core/src/io/anuke/mindustry/game/Unlocks.java

@@ -1,6 +1,8 @@
 package io.anuke.mindustry.game;
 
+import com.badlogic.gdx.utils.Array;
 import com.badlogic.gdx.utils.ObjectMap;
+import com.badlogic.gdx.utils.ObjectMap.Entry;
 import com.badlogic.gdx.utils.ObjectSet;
 import io.anuke.mindustry.game.EventType.UnlockEvent;
 import io.anuke.mindustry.type.ContentType;
@@ -65,8 +67,27 @@ public class Unlocks{
         save();
     }
 
+    /**Loads 'legacy' unlocks. Will be removed in final release.*/
+    public void tryLoadLegacy(){
+        try{
+            ObjectMap<String, ObjectMap<ContentType, Array<String>>> sets = Settings.getObject("content-sets", ObjectMap.class, ObjectMap::new);
+            for(Entry<ContentType, Array<String>> entry : sets.get("root").entries()){
+                unlocked.put(entry.key, new ObjectSet<>());
+                unlocked.get(entry.key).addAll(entry.value);
+            }
+        }catch(Throwable t){
+            t.printStackTrace();
+        }
+        Settings.prefs().remove("content-sets");
+        Settings.save();
+    }
+
     public void load(){
         unlocked = Settings.getObject("unlockset", ObjectMap.class, ObjectMap::new);
+
+        if(Settings.has("content-sets")){
+            tryLoadLegacy();
+        }
     }
 
     public void save(){