def result(self, state: str, action: Action):
""" Return the state that results from executing the given
action in the given state. The action must be one of
self.actions(state).
:param state: state entering node
:param action: Action applied
:return: resulting state after action
"""
# TODO implement
new_state = FluentState([], [])
kb = PropKB()
old_state = decode_state(state, self.state_map)
new_state.pos = old_state.pos
new_state.neg = old_state.neg
for f in action.effect_add:
if f in old_state.neg:
new_state.neg.remove(f)
new_state.pos.append(f)
elif f in old_state.pos:
break
else:
new_state.pos.append(f)
for f in action.effect_rem:
if f in old_state.pos:
new_state.pos.remove(f)
new_state.neg.append(f)
elif f in old_state.neg:
break
else:
new_state.neg.append(f)
return encode_state(new_state, self.state_map)
def result(self, state: str, action: Action):
""" Return the state that results from executing the given
action in the given state. The action must be one of
self.actions(state).
:param state: state entering node
:param action: Action applied
:return: resulting state after action
"""
new_state = FluentState([], [])
old_state = decode_state(state, self.state_map)
# Add positive state fluents
new_state.pos = [fluent for fluent in old_state.pos \
if fluent not in action.effect_rem]
new_state.pos.extend([fluent for fluent in action.effect_add \
if fluent not in new_state.pos])
# Add negative state fluents
new_state.neg = [fluent for fluent in old_state.neg \
if fluent not in action.effect_add]
new_state.neg.extend([fluent for fluent in action.effect_rem \
if fluent not in new_state.neg])
return encode_state(new_state, self.state_map)
def result(self, state: str, action: Action):
""" Return the state that results from executing the given
action in the given state. The action must be one of
self.actions(state).
:param state: state entering node
:param action: Action applied
:return: resulting state after action
"""
# TODO implement
new_state = FluentState([], [])
current_state = decode_state(state, self.state_map)
pos = []
neg = []
for fluent in current_state.pos:
if fluent not in action.effect_rem:
pos.append(fluent)
for fluent in current_state.neg:
if fluent not in action.effect_add:
neg.append(fluent)
for fluent in action.effect_add:
if fluent not in pos:
pos.append(fluent)
for fluent in action.effect_rem:
if fluent not in neg:
neg.append(fluent)
new_state.pos = pos
new_state.neg = neg
return encode_state(new_state, self.state_map)
def result(self, state: str, action: Action):
""" Return the state that results from executing the given
action in the given state. The action must be one of
self.actions(state).
:param state: state entering node
:param action: Action applied
:return: resulting state after action
"""
# TODO implement
# if action.name not in self.actions(state):
# print("available actions: ", )
# for atn in self.actions(state):
# print(atn.name, atn.args,)
# raise AssertionError("action {}{} is not applicable for state {} {}".format(action.name, action.args,state, self.state_map))
new_state = FluentState([], [])
fs = decode_state(state, self.state_map)
new_state.pos = list((set(fs.pos) | set(action.effect_add)) -
set(action.effect_rem))
new_state.neg = list((set(fs.neg) - set(action.effect_add))
| set(action.effect_rem))
#state_map should not change!
#self.state_map = new_state.pos + new_state.neg
#print("state {} after action {}{} is state {}({})".format(state, action.name, action.args, encode_state(new_state, self.state_map), self.state_map))
return encode_state(new_state, self.state_map)
def result(self, state: str, action: Action):
""" Return the state that results from executing the given
action in the given state. The action must be one of
self.actions(state).
:param state: state entering node
:param action: Action applied
:return: resulting state after action
"""
# TODO implement
new_state = FluentState([], [])
# form set of current positive and negative states
pos_state_actions = set(
[self.state_map[i] for i, a in enumerate(state) if a == 'T'])
neg_state_actions = set(
[self.state_map[i] for i, a in enumerate(state) if a == 'F'])
# update actions by removing concurrent effects and adding them to the correct groups
new_state.pos = list(pos_state_actions - set(action.effect_rem)
| set(action.effect_add))
new_state.neg = list(neg_state_actions - set(action.effect_add)
| set(action.effect_rem))
return encode_state(new_state, self.state_map)
def result(self, state: str, action: Action):
""" Return the state that results from executing the given
action in the given state. The action must be one of
self.actions(state).
:param state: state entering node
:param action: Action applied
:return: resulting state after action
"""
# TODO implement
new_state = FluentState([], [])
# current state
cur_state = decode_state(state, self.state_map)
# to execute an action, at current state
# 1. all postive preconditions remains in new_state.pos
# if they are not in the remove list as an effect of the action;
# 2. all negative preconditions remains in new_state.neg
# if they are not in the add list for the effect of the action
new_state.pos = [
fluent for fluent in cur_state.pos
if fluent not in action.effect_rem
]
new_state.neg = [
fluent for fluent in cur_state.neg
if fluent not in action.effect_add
]
# also, add remaining expr in action.effect_add to new_state.pos and
# add remaining expr in action.effect_rem to new_state.neg
new_state.pos = new_state.pos + [
fluent
for fluent in action.effect_add if fluent not in new_state.pos
]
new_state.neg = new_state.neg + [
fluent
for fluent in action.effect_rem if fluent not in new_state.neg
]
return encode_state(new_state, self.state_map)
def result(self, state: str, action: Action):
""" Return the state that results from executing the given
action in the given state. The action must be one of
self.actions(state).
:param state: state entering node
:param action: Action applied
:return: resulting state after action
"""
# implement
new_state = FluentState([], [])
old_state = decode_state(state, self.state_map)
#if a fluent is not negated it stays positive and added effects are added to the positive fluents
new_state.pos = list(set(old_state.pos).difference(set(action.effect_rem)).union(set(action.effect_add)))
#if a fluent is not added it stays negated and removed effects are added to negative fluents
new_state.neg = list(set(old_state.neg).difference(set(action.effect_add)).union(set(action.effect_rem)))
return encode_state(new_state, self.state_map)
def result(self, state: str, action: Action):
""" Return the state that results from executing the given
action in the given state. The action must be one of
self.actions(state).
:param state: state entering node
:param action: Action applied
:return: resulting state after action
"""
new_state = FluentState([], [])
old_fluent_state = decode_state(state, self.state_map)
new_state.pos = old_fluent_state.pos
new_state.neg = old_fluent_state.neg
for to_add in action.effect_add:
new_state.pos.append(to_add)
for to_remove in action.effect_rem:
new_state.pos.remove(to_remove)
return encode_state(new_state, self.state_map)
def result(self, state: str, action: Action):
""" Return the state that results from executing the given
action in the given state. The action must be one of
self.actions(state).
:param state: state entering node
:param action: Action applied
:return: resulting state after action
"""
new_state = FluentState([], [])
current_state = decode_state(state, self.state_map)
# Add positive effect to state (sets union), remove negative effect from state's positive literals (set dieferrence)
new_state.pos = list((set(current_state.pos) | set(action.effect_add)) - set(action.effect_rem))
# Add negative effect to state (sets union), remove positive effect from state's negative literals (set dieferrence)
new_state.neg = list((set(current_state.neg) | set(action.effect_rem)) - set(action.effect_add))
return encode_state(new_state, self.state_map)
def result(self, state: str, action: Action):
""" Return the state that results from executing the given
action in the given state. The action must be one of
self.actions(state).
:param state: state entering node
:param action: Action applied
:return: resulting state after action
"""
# TODO implement
new_state = FluentState([], [])
old_state = decode_state(state, self.state_map)
new_state.pos = list(
set(old_state.pos) - set(action.effect_rem)
| set(action.effect_add))
new_state.neg = list(
set(old_state.neg) - set(action.effect_add)
| set(action.effect_rem))
return encode_state(new_state, self.state_map)
def result(self, state: str, action: Action):
""" Return the state that results from executing the given
action in the given state. The action must be one of
self.actions(state).
:param state: state entering node
:param action: Action applied
:return: resulting state after action
"""
new_state = FluentState([], [])
current_state = decode_state(state, self.state_map)
new_state.pos = [
item for item in current_state.pos if item not in action.effect_rem
]
new_state.neg = [
item for item in current_state.neg if item not in action.effect_add
]
for item in action.effect_add:
if item not in new_state.pos:
new_state.pos.append(item)
for item in action.effect_rem:
if item not in new_state.neg:
new_state.neg.append(item)
return encode_state(new_state, self.state_map)