Function enable_updates_at

plugins/steam-engine.cpp:96–105

};

void enable_updates_at(df::coord pos, bool flow, bool temp)
{
    static const int delta[4][2] = { { -1, -1 }, { 1, -1 }, { -1, 1 }, { 1, 1 } };

    for (int i = 0; i < 4; i++)
    {
        auto blk = Maps::getTileBlock(pos.x+delta[i][0], pos.y+delta[i][1], pos.z);
        Maps::enableBlockUpdates(blk, flow, temp);
    }
}

void decrement_flow(df::coord pos, int amount)
{