Module `pacai.agents.search.staydirection`

Expand source code

from pacai.agents.search.base import SearchAgent
from pacai.core.search import search
from pacai.core.search.position import PositionSearchProblem

class StayEastSearchAgent(SearchAgent):
    """
    An agent for `pacai.core.search.position.PositionSearchProblem`
    with a cost function that penalizes being on the West side of the board.

    The cost function for stepping into a position (x, y) is `(1/2)^x`.
    """

    def __init__(self, index, **kwargs):
        super().__init__(index, **kwargs)

        self.searchFunction = search.ucs
        costFn = lambda pos: 0.5 ** pos[0]
        self.searchType = lambda state: PositionSearchProblem(state, costFn)

class StayWestSearchAgent(SearchAgent):
    """
    An agent for `pacai.core.search.position.PositionSearchProblem`
    with a cost function that penalizes being on the East side of the board.

    The cost function for stepping into a position (x, y) is `2^x`.
    """

    def __init__(self, index, **kwargs):
        super().__init__(index, **kwargs)

        self.searchFunction = search.ucs
        costFn = lambda pos: 2 ** pos[0]
        self.searchType = lambda state: PositionSearchProblem(state, costFn)

Classes

class StayEastSearchAgent (index, **kwargs)

An agent for PositionSearchProblem with a cost function that penalizes being on the West side of the board.

The cost function for stepping into a position (x, y) is (1/2)^x.

Expand source code

class StayEastSearchAgent(SearchAgent):
    """
    An agent for `pacai.core.search.position.PositionSearchProblem`
    with a cost function that penalizes being on the West side of the board.

    The cost function for stepping into a position (x, y) is `(1/2)^x`.
    """

    def __init__(self, index, **kwargs):
        super().__init__(index, **kwargs)

        self.searchFunction = search.ucs
        costFn = lambda pos: 0.5 ** pos[0]
        self.searchType = lambda state: PositionSearchProblem(state, costFn)

Ancestors

Static methods

def loadAgent(name, index, args={}): Inherited from: SearchAgent.loadAgent

Load an agent with the given class name. The name can be fully qualified or just the bare class name. If the bare name is given, the class should …

Methods

def final(self, state): Inherited from: SearchAgent.final

Inform the agent about the result of a game.
def getAction(self, state): Inherited from: SearchAgent.getAction

Returns the next action in the path chosen earlier (in registerInitialState). Return Directions.STOP if there is no further action to take.
def observationFunction(self, state): Inherited from: SearchAgent.observationFunction

Make an observation on the state of the game. Called once for each round of the game.
def registerInitialState(self, state): Inherited from: SearchAgent.registerInitialState

This is the first time that the agent sees the layout of the game board. Here, we choose a path to the goal. In this phase, the agent should compute …

class StayWestSearchAgent (index, **kwargs)

An agent for PositionSearchProblem with a cost function that penalizes being on the East side of the board.

The cost function for stepping into a position (x, y) is 2^x.

Expand source code

class StayWestSearchAgent(SearchAgent):
    """
    An agent for `pacai.core.search.position.PositionSearchProblem`
    with a cost function that penalizes being on the East side of the board.

    The cost function for stepping into a position (x, y) is `2^x`.
    """

    def __init__(self, index, **kwargs):
        super().__init__(index, **kwargs)

        self.searchFunction = search.ucs
        costFn = lambda pos: 2 ** pos[0]
        self.searchType = lambda state: PositionSearchProblem(state, costFn)

Ancestors

Static methods

def loadAgent(name, index, args={}): Inherited from: SearchAgent.loadAgent

Load an agent with the given class name. The name can be fully qualified or just the bare class name. If the bare name is given, the class should …

Methods

def final(self, state): Inherited from: SearchAgent.final

Inform the agent about the result of a game.
def getAction(self, state): Inherited from: SearchAgent.getAction

Returns the next action in the path chosen earlier (in registerInitialState). Return Directions.STOP if there is no further action to take.
def observationFunction(self, state): Inherited from: SearchAgent.observationFunction

Make an observation on the state of the game. Called once for each round of the game.
def registerInitialState(self, state): Inherited from: SearchAgent.registerInitialState

This is the first time that the agent sees the layout of the game board. Here, we choose a path to the goal. In this phase, the agent should compute …