mirror of
https://github.com/nexus-stc/hyperboria
synced 2024-12-05 01:12:55 +01:00
22 lines
821 B
Python
22 lines
821 B
Python
|
import random
|
||
|
|
|
||
|
|
|
||
|
|
class Promotioner:
|
||
|
|
"""
|
||
|
|
Promotioner is used to select promotion randomly based on weights of every promotion.
|
||
|
|
"""
|
||
|
|
def __init__(self, promotions: list[dict]):
|
||
|
|
self.promotions = promotions
|
||
|
|
self.partial_sums: list = [self.promotions[0]['weight']]
|
||
|
|
for promotion in self.promotions[1:]:
|
||
|
|
self.partial_sums.append(promotion['weight'] + self.partial_sums[-1])
|
||
|
|
|
||
|
|
def choose_promotion(self, language: str = 'en') -> str:
|
||
|
|
pivot = random.randrange(self.partial_sums[-1])
|
||
|
|
for partial_sum, promotion in zip(self.partial_sums, self.promotions):
|
||
|
|
if partial_sum <= pivot:
|
||
|
|
continue
|
||
|
|
if language in promotion['texts']:
|
||
|
|
return promotion['texts'][language]
|
||
|
|
return promotion['texts']['en']
|