set.cpp

void Board::set(int coordinate, int c){
	for (int i = 0; i < 16; ++i){
		cells[i][coordinate] = false;
	}

	base mask = 0;
	int x = coordinate /16, y = coordinate %16, block;
	mask |= (xMask << (x*16));
	mask |= (yMask << y);
	block = (x/4)*4 + y/4;
	mask |= (blockMask[block]);

	cells[c] &= ~mask;
	cells[c][coordinate] = true;
	return;
}