NET/worlds/scape/UndoablSet.java


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package NET.worlds.scape;

class UndoablSet implements Undoable {
   private Property prop;
   private Object obj;

   UndoablSet(Property prop, Object newObj) {
      this.prop = prop;
      this.obj = prop.get();
      prop.set(newObj);
   }

   @Override
   public void undo() {
      this.prop.set(this.obj);
   }
}