Method scanAnchor

source/game/StarDungeonGenerator.cpp:851–902

  }

  void Part::scanAnchor() {
    int cx, cy, cc;
    cx = cy = cc = 0;
    int lowestAir = m_size[1];
    int highestGound = -1;
    int highestLiquid = -1;
    try {
      m_reader->forEachTile([&](Vec2I pos, Tile const& tile) -> bool {
        int x = pos.x(), y = pos.y();
        if (tile.collidesWithPlaces()) {
          cx += x;
          cy += y;
          cc++;
        }
        if (tile.requiresOpen()) {
          if ((int)y < lowestAir)
            lowestAir = y;
        }
        if (tile.requiresSolid()) {
          if ((int)y > highestGound)
            highestGound = y;
        }
        if (tile.requiresLiquid()) {
          if ((int)y > highestLiquid)
            highestLiquid = y;
        }
        return false;
      });
    } catch (std::exception& e) {
      throw DungeonException(strf("Exception {} in part {}", outputException(e, true), m_name));
    }

    highestGound = max(highestGound, highestLiquid);
    if (highestGound == -1)
      highestGound = lowestAir - 1;

    if (lowestAir == (int)m_size[1])
      lowestAir = highestGound + 1;

    if (cc == 0) {
      cx = m_size[0] / 2;
      cy = m_size[1] / 2;
    } else {
      cx /= cc;
      cy /= cc;
    }

    if (highestGound != -1)
      cy = highestGound + 1;

    m_anchorPoint = {cx, cy};
  }

  bool WorldGenMustContainSolidRule::checkTileCanPlace(Vec2I position, DungeonGeneratorWriter* writer) const {
    return writer->checkSolid(position, layer);