func (b Board) SearchWinPath(limit time.Duration) (*EVnode, error) {
mnode := C.mnode_new(C.board_copy(b.b, b.ctx), b.ctx)
defer C.mnode_free(mnode)
Search_lock.Lock()
defer Search_lock.Unlock()
Search_limit = time.Now().Add(limit)
Search_limit_exceeded = false
enode := C.searchWinPath(mnode, b.ctx)
if Search_limit_exceeded {
return (*EVnode)(enode), errors.New("Time limit exceeded")
}
return (*EVnode)(enode), nil
}
func (b Board) Copy() Board {
cpy := Board{}
cpy.b = C.board_copy(b.b, b.ctx)
cpy.ctx = C.context_new((*b.ctx).nHoles, (*b.ctx).totalStones)
return cpy
}