Function IsTiletypeChanged

plugins/remotefortressreader/remotefortressreader.cpp:652–666

std::map<DFCoord, uint16_t> hashes;

bool IsTiletypeChanged(DFCoord pos)
{
    uint16_t hash;
    df::map_block * block = Maps::getBlock(pos);
    if (block)
        hash = fletcher16((uint8_t*)(block->tiletype), 16 * 16 * (sizeof(df::enums::tiletype::tiletype)));
    else
        hash = 0;
    if (hashes[pos] != hash)
    {
        hashes[pos] = hash;
        return true;
    }
    return false;
}

std::map<DFCoord, uint16_t> waterHashes;