WIP map objective system

core/src/mindustry/game/MapObjectives.java

@@ -0,0 +1,29 @@
+package mindustry.game;
+
+import arc.func.*;
+import arc.struct.*;
+import arc.util.*;
+
+public class MapObjectives{
+    public static Seq<Prov<MapObjective>> allObjectiveTypes = Seq.with();
+
+    public abstract class MapObjective{
+
+        public boolean complete(){
+            return false;
+        }
+
+        public void update(){
+
+        }
+
+        /** Reset internal state, if any. */
+        public void reset(){
+
+        }
+
+        public @Nullable String details(){
+            return null;
+        }
+    }
+}