inputexample.java

public class InputTask implements Runnable {
    private final ImmutableBag<Entity> entities;
    public InputTask(ImmutableBag<Entity> entities) {
      this.entities = entities;
    }

    @Override
    public void run() {
      for (int i = 0; i < entities.size(); i++) update(entities.get(i));
    }

    private void update(Entity e) {
      InputC input = inputMapper.get(e);
      if (input.controlling == Controlling.NotControlled) return;
      if (input.controlling == Controlling.Controlling) {
        input.keys = gdx.game.logic.Input.keys;
        input.camDir = CameraHelper.getDirection();
      }
      input.process(e);
    }
  }

public class InputC extends Component {
  public enum Controlling {
    Controlling,
    OtherControlled,
    NotControlled
  }
  public Controlling controlling;
  public BitSet keys;
  public Vector2 camDir;

  private final InputBehavior inputBehavior;

  public InputC(Controlling controlling, InputBehavior inputBehavior) {
    this.controlling = controlling;
    this.inputBehavior = inputBehavior;
  }

  public void process(Entity e) {
    inputBehavior.process(e);
  }
}

public interface InputBehavior {
  public void process(Entity e);
}


public class ShipInputBehavior implements InputBehavior {
  @Override
  public void process(Entity ship) {
    if(input.keys.get(Keys.W) doStuff();
  }
}