dfhack/library/include/df/custom/block_burrow.methods.inc

inline bool getassignment( const df::coord2d &xy )
{
    return getassignment(xy.x,xy.y);
}
inline bool getassignment( int x, int y )
{
    return (tile_bitmask[y] & (1 << x));
}
inline void setassignment( const df::coord2d &xy, bool bit )
{
    return setassignment(xy.x,xy.y, bit);
}
inline void setassignment( int x, int y, bool bit )
{
    if(bit)
        tile_bitmask[y] |= (1 << x);
    else
        tile_bitmask[y] &= ~(1 << x);
}
bool has_assignments()
{
    for (int i = 0; i < 16; i++)
        if (tile_bitmask[i])
            return true;
    return false;
}