Method refreshFloodFill

source/gamemap/GameMap.cpp:2219–2275

}

void GameMap::refreshFloodFill(Seat* seat, Tile* tile)
{
    std::vector<uint32_t> colors(static_cast<uint32_t>(FloodFillType::nbValues), Tile::NO_FLOODFILL);

    // If the tile has opened a new place, we use the same floodfillcolor for all the areas
    for(uint32_t i = 0; i < colors.size(); ++i)
    {
        FloodFillType type = static_cast<FloodFillType>(i);
        if(!tile->isFloodFillPossible(seat, type))
            continue;

        for(Tile* neigh : tile->getAllNeighbors())
        {
            uint32_t neighColor = neigh->getFloodFillValue(seat, type);
            if(neighColor == Tile::NO_FLOODFILL)
                continue;

            colors[i] = neighColor;
            break;
        }
    }

    // Now, we fill floodfill if no color was found on any neighboor tile
    // That might happen if a tile surrounded by water is dug
    for(uint32_t i = 0; i < colors.size(); ++i)
    {
        FloodFillType type = static_cast<FloodFillType>(i);
        if(colors[i] != Tile::NO_FLOODFILL)
            continue;

        if(!tile->isFloodFillPossible(seat, type))
            continue;

        colors[i] = nextUniqueFloodFillValue();
    }

    // Now, we update the tile and its neighboors
    for(uint32_t i = 0; i < colors.size(); ++i)
    {
        const uint32_t& color = colors[i];
        FloodFillType type = static_cast<FloodFillType>(i);
        if(color == Tile::NO_FLOODFILL)
            continue;

        tile->replaceFloodFill(seat, type, color);
        for(Tile* neigh : tile->getAllNeighbors())
        {
            uint32_t neighColor = neigh->getFloodFillValue(seat, type);
            if(neighColor == Tile::NO_FLOODFILL)
                continue;
            if(neighColor == color)
                continue;

            replaceFloodFill(seat, type, neighColor, color);
        }
    }
}