#ifndef VIEWS_H_98651096
#define VIEWS_H_98651096

#include "entity.h"
#include <range/v3/all.hpp>

namespace views {

  inline auto isMoving()
  {
    return ranges::view::filter([] (const Entity& entity) {
      return entity.moving;
    });
  }

  inline auto isNotMoving()
  {
    return ranges::view::filter([] (const Entity& entity) {
      return !entity.moving;
    });
  }

  inline auto isControllable()
  {
    return ranges::view::filter([] (const Entity& entity) {
      return entity.controllable;
    });
  }

  inline auto isTrack()
  {
    return ranges::view::filter([] (const Entity& entity) {
      return entity.isTrack;
    });
  }

  inline auto isScheduled()
  {
    return ranges::view::filter([] (const Entity& entity) {
      return entity.scheduled;
    });
  }

  inline auto isOnLayer(Layer layer)
  {
    return ranges::view::filter([layer] (const Entity& entity) {
      return entity.layer == layer;
    });
  }

  inline auto canBePushedBy(ColliderType ctype)
  {
    return ranges::view::filter([ctype] (const Entity& entity) {
      return entity.canBePushedBy.count(ctype);
    });
  }

  inline auto atGridPos(vec2s pos)
  {
    return ranges::view::filter([pos] (const Entity& entity) {
      return entity.gridPos == pos;
    });
  }

  inline auto isMovingTo(vec2s pos)
  {
    return ranges::view::filter([pos] (const Entity& entity) {
      return entity.moving && entity.destPos == pos;
    });
  }



}

#endif /* end of include guard: VIEWS_H_98651096 */