def __init__(self, actions):
for i, a in enumerate(actions):
for a2 in actions[i + 1:]:
assert a is not a2
assert a2 not in a.mutex
assert a not in a2.mutex
self.actions = actions
self.must_bits = BitMask.all_union([a.must_bits for a in actions])
self.then_bits = BitMask.all_union([a.then_bits for a in actions])
def score_accomplishment_pool(self, pool, goal, start):
"""Scores an ActionPool, given a goal and initial state.
This returns a tuple, with each item being a different tie-breaker"""
remaining = goal.unset_from_action(pool.then_bits)
requirement = pool.must_bits
union = BitMask.all_union([remaining, requirement])
if start:
start_score = start.difference(union).count_set()
else:
start_score = 0
if hasattr(pool, "action_count"):
count_score = pool.action_count()
else:
count_score = 0
score = (remaining.count_set(), union.count_set(), start_score, count_score)
return score