def get_base_lesson_factory():
return LessonFactory(
max_interval=4,
note_duration_millis=500,
length=2,
hint_prefix=1,
span=5
)
def get_factory_from_lesson(lesson):
ret = LessonFactory(
max_interval=lesson.max_interval,
note_duration_millis=lesson.note_duration_millis,
length=lesson.length,
hint_prefix=lesson.hint_prefix,
span=lesson.span
)
#print '%s from %s' % (str(ret), str(lesson))
return ret
def change_interval(lesson_factory, change):
as_dict = lesson_factory._asdict()
as_dict['max_interval'] = change + lesson_factory.max_interval
return LessonFactory(
**as_dict
)
def scale_note_duration_millis(lesson_factory, factor):
as_dict = lesson_factory._asdict()
as_dict['note_duration_millis'] = int(factor * lesson_factory.note_duration_millis)
return LessonFactory(
**as_dict
)
def change_hint_prefix(lesson_factory, change):
as_dict = lesson_factory._asdict()
as_dict['hint_prefix'] = change + lesson_factory.hint_prefix
return LessonFactory(
**as_dict
)
def change_span(lesson_factory, change):
as_dict = lesson_factory._asdict()
as_dict['span'] = change + lesson_factory.span
return LessonFactory(
**as_dict
)
def change_length(lesson_factory, change):
as_dict = lesson_factory._asdict()
as_dict['length'] = change + lesson_factory.length
return LessonFactory(
**as_dict
)