35 lines
1.3 KiB
Python

from typing import List
from marl_factory_grid.environment.rules import Rule
from marl_factory_grid.environment import constants as c
from marl_factory_grid.utils.results import TickResult
from marl_factory_grid.modules.items import constants as i
class RespawnItems(Rule):
def __init__(self, n_items: int = 5, respawn_freq: int = 15, n_locations: int = 5):
super().__init__()
self.spawn_frequency = respawn_freq
self._next_item_spawn = respawn_freq
self.n_items = n_items
self.n_locations = n_locations
def tick_step(self, state):
if not self._next_item_spawn:
state[i.ITEM].trigger_spawn(state, self.n_items, self.spawn_frequency)
else:
self._next_item_spawn = max(0, self._next_item_spawn - 1)
return []
def tick_post_step(self, state) -> List[TickResult]:
if not self._next_item_spawn:
if spawned_items := state[i.ITEM].trigger_spawn(state, self.n_items, self.spawn_frequency):
return [TickResult(self.name, validity=c.VALID, value=spawned_items.value)]
else:
return [TickResult(self.name, validity=c.NOT_VALID, value=0)]
else:
self._next_item_spawn = max(0, self._next_item_spawn-1)
return []