def heuristic(state):
# type: (State) -> float
"""
Estimate the value of this state: -1.0 is a certain win for player 2, 1.0 is a certain win for player 1
:param state:
:return: A heuristic evaluation for the given state (between -1.0 and 1.0)
"""
return util.ratio_points(state, 1) * 2.0 - 1.0, None
def heuristic(state, leadcount):
# type: (State, int) -> float
"""
Estimate the value of this state: -1.0 is a certain win for player 2, 1.0 is a certain win for player 1
:param state:
:return: A heuristic evaluation for the given state (between -1.0 and 1.0)
"""
leadcount_heuristic = leadcount / 10
ratio_heuristic = util.ratio_points(state, 1) * 2.0 - 1.0
if
evaluation = leadcount_heuristic + ratio_heuristic
return evaluation, None
def heuristic(self, state, player):
return util.ratio_points(state, player)
def heuristic(state): # Returns value between 1.0 and -1.0 of given state according to heuristic evaluating whether player 1 or 2 is better off.
return util.ratio_points(state, 1) * 2.0 - 1.0, None
def Update(self, terminalState):
""" Update this node - increment the visit count by one, and increase the win count by the result of terminalState for self.playerJustMoved.
"""
self.visits += 1
if self.playerJustMoved is not None:
self.wins += util.ratio_points(terminalState, self.playerJustMoved)
def evaluation(self, state):
return util.ratio_points(state, self.player)
