Method interactiveEntityNear

source/game/StarEntityMap.cpp:291–325

}

InteractiveEntityPtr EntityMap::interactiveEntityNear(Vec2F const& pos, float maxRadius) const {
  auto rect = RectF::withCenter(pos, Vec2F::filled(maxRadius));
  InteractiveEntityPtr interactiveEntity;
  double bestDistance = maxRadius + 100;
  double bestCenterDistance = maxRadius + 100;
  m_spatialMap.forEach(m_geometry.splitRect(rect), [&](EntityPtr const& entity) {
      if (auto ie = as<InteractiveEntity>(entity)) {
        if (ie->isInteractive()) {
          if (auto tileEntity = as<TileEntity>(entity)) {
            for (Vec2I space : tileEntity->interactiveSpaces()) {
              auto dist = m_geometry.diff(pos, centerOfTile(space + tileEntity->tilePosition())).magnitude();
              auto centerDist = m_geometry.diff(tileEntity->metaBoundBox().center() + tileEntity->position(), pos).magnitude();
              if ((dist < bestDistance) || ((dist == bestDistance) && (centerDist < bestCenterDistance))) {
                interactiveEntity = ie;
                bestDistance = dist;
                bestCenterDistance = centerDist;
              }
            }
          } else {
            auto box = ie->interactiveBoundBox().translated(entity->position());
            auto dist = m_geometry.diffToNearestCoordInBox(box, pos).magnitude();
            auto centerDist = m_geometry.diff(box.center(), pos).magnitude();
            if ((dist < bestDistance) || ((dist == bestDistance) && (centerDist < bestCenterDistance))) {
              interactiveEntity = ie;
              bestDistance = dist;
              bestCenterDistance = centerDist;
            }
          }
        }
      }
    });
  if (bestDistance <= maxRadius)
    return interactiveEntity;
  return {};
}

bool EntityMap::tileIsOccupied(Vec2I const& pos, bool includeEphemeral) const {
  RectF rect(Vec2F(pos[0], pos[1]), Vec2F(pos[0] + 1, pos[1] + 1));