0ptr/nullptr/missions/__init__.py

from nullptr.missions.survey import SurveyMission
from nullptr.missions.mine import MiningMission
from nullptr.missions.haul import HaulMission
from nullptr.missions.travel import TravelMission
from nullptr.missions.probe import ProbeMission

def get_mission_class( mtype):
  types = {
    'survey': SurveyMission,
    'mine': MiningMission,
    'haul': HaulMission,
    'travel': TravelMission,
    'probe': ProbeMission
  }
  if mtype not in types:
    raise ValueError(f'invalid mission type {mtype}')
  return types[mtype]
  
def create_mission(mtype, ship, store, api):
  typ = get_mission_class(mtype)
  m = typ(ship, store, api)
  return m