it is done

core/src/mindustry/game/Objectives.java

@@ -0,0 +1,96 @@
+package mindustry.game;
+
+import arc.*;
+import arc.util.ArcAnnotate.*;
+import mindustry.type.*;
+import mindustry.world.*;
+
+/** Holds objective classes. */
+public class Objectives{
+
+    //TODO
+    public static class Wave implements Objective{
+        public int wave;
+
+        public Wave(int wave){
+            this.wave = wave;
+        }
+
+        protected Wave(){}
+
+        @Override
+        public boolean complete(){
+            return false;
+        }
+
+        @Override
+        public String display(){
+            //TODO
+            return null;
+        }
+    }
+
+    public static class Unlock implements Objective{
+        public @NonNull Block block;
+
+        public Unlock(Block block){
+            this.block = block;
+        }
+
+        protected Unlock(){}
+
+        @Override
+        public boolean complete(){
+            return block.unlocked();
+        }
+
+        @Override
+        public String display(){
+            return Core.bundle.format("requirement.unlock", block.localizedName);
+        }
+    }
+
+    public static class ZoneWave extends ZoneObjective{
+        public int wave;
+
+        public ZoneWave(Zone zone, int wave){
+            this.zone = zone;
+            this.wave = wave;
+        }
+
+        protected ZoneWave(){}
+
+        @Override
+        public boolean complete(){
+            return zone.bestWave() >= wave;
+        }
+
+        @Override
+        public String display(){
+            return Core.bundle.format("requirement.wave", wave, zone.localizedName);
+        }
+    }
+
+    public static class Launched extends ZoneObjective{
+
+        public Launched(Zone zone){
+            this.zone = zone;
+        }
+
+        protected Launched(){}
+
+        @Override
+        public boolean complete(){
+            return zone.hasLaunched();
+        }
+
+        @Override
+        public String display(){
+            return Core.bundle.format("requirement.core", zone.localizedName);
+        }
+    }
+
+    public abstract static class ZoneObjective implements Objective{
+        public @NonNull Zone zone;
+    }
+}