many things

core/src/mindustry/entities/abilities/Ability.java

@@ -2,7 +2,16 @@ package mindustry.entities.abilities;
 
 import mindustry.gen.*;
 
-public interface Ability{
-    default void update(Unit unit){}
-    default void draw(Unit unit){}
+public abstract class Ability implements Cloneable{
+    public void update(Unit unit){}
+    public void draw(Unit unit){}
+
+    public Ability copy(){
+        try{
+            return (Ability)clone();
+        }catch(CloneNotSupportedException e){
+            //I am disgusted
+            throw new RuntimeException("java sucks", e);
+        }
+    }
 }