Function setPriorityAt

library/include/modules/MapCache.h:555–559

        return b ? b->priorityAt(tilecoord) : -1;
    }
    bool setPriorityAt (DFCoord tilecoord, int32_t priority)
    {
        Block *b = BlockAtTile(tilecoord);
        return b ? b->setPriorityAt(tilecoord, priority) : false;
    }

    df::tile_occupancy occupancyAt (DFCoord tilecoord)
    {