sanguis::tiles::impl::optional_orientation
sanguis::tiles::impl::decode_name(
fcppt::string const &_name
)
{
return
_name.size()
!=
fcppt::enum_size<
sanguis::tiles::direction
>::value
?
sanguis::tiles::impl::optional_orientation()
:
fcppt::algorithm::fold(
fcppt::make_enum_range<
sanguis::tiles::direction
>(),
sanguis::tiles::impl::optional_orientation(
sanguis::tiles::orientation::null()
),
[
&_name
](
sanguis::tiles::direction const _dir,
sanguis::tiles::impl::optional_orientation const _state
)
{
return
fcppt::optional::bind(
_state,
[
_dir,
&_name
](
sanguis::tiles::orientation const _orientation
)
{
typedef
fcppt::optional::object<
bool
>
optional_bool;
auto const char_to_bool(
[](
fcppt::char_type const _value
)
-> optional_bool
{
switch(
_value
)
{
case FCPPT_TEXT('0'):
return
optional_bool(
true
);
case FCPPT_TEXT('1'):
return
optional_bool(
false
);
}
return
optional_bool();
}
);
return
fcppt::optional::map(
char_to_bool(
_name[
fcppt::cast::enum_to_int<
fcppt::string::size_type
>(
_dir
)
]
),
[
_orientation,
_dir
](
bool const _value
)
-> sanguis::tiles::orientation
{
return
_value
?
_orientation
|
_dir
:
_orientation
;
}
);
}
);
}
);
}
