aima.probability.decision.cellworld
Class CellWorld

java.lang.Object
  aima.probability.decision.cellworld.CellWorld

All Implemented Interfaces:

MDPSource<CellWorldPosition,java.lang.String>

public class CellWorld
extends java.lang.Object
implements MDPSource<CellWorldPosition,java.lang.String>

Field Summary

static java.lang.String	DOWN
static java.lang.String	LEFT
static java.lang.String	NO_OP
static java.lang.String	RIGHT
static java.lang.String	UP

Constructor Summary

CellWorld(int numberOfRows, int numberOfColumns, double initialReward)

Method Summary

MDP<CellWorldPosition,java.lang.String>	asMdp()
MDPPerception<CellWorldPosition>	execute(CellWorldPosition position, java.lang.String action, Randomizer r)
java.util.List<java.lang.String>	getAllActions()
java.util.List<CellWorldPosition>	getFinalStates()
CellWorldPosition	getInitialState()
java.util.List<CellWorldPosition>	getNonFinalStates()
MDPRewardFunction<CellWorldPosition>	getRewardFunction()
MDPTransitionModel<CellWorldPosition,java.lang.String>	getTransitionModel()
double	getTransitionProbability(CellWorldPosition startingPosition, java.lang.String actionDesired, CellWorldPosition endingPosition)
boolean	isBlocked(Pair<java.lang.Integer,java.lang.Integer> p)
void	markBlocked(int i, int j)
CellWorldPosition	moveProbabilisticallyFrom(int i, int j, java.lang.String direction, Randomizer r)
void	setReward(int i, int j, double reward)
void	setTerminalState(CellWorldPosition position)
void	setTerminalState(int i, int j)
java.util.List<Cell>	unblockedCells()
java.util.List<CellWorldPosition>	unblockedPositions()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

LEFT

public static final java.lang.String LEFT

See Also:

Constant Field Values

RIGHT

public static final java.lang.String RIGHT

See Also:

Constant Field Values

UP

public static final java.lang.String UP

See Also:

Constant Field Values

DOWN

public static final java.lang.String DOWN

See Also:

Constant Field Values

NO_OP

public static final java.lang.String NO_OP

See Also:

Constant Field Values

Constructor Detail

CellWorld

public CellWorld(int numberOfRows,
                 int numberOfColumns,
                 double initialReward)

Method Detail

markBlocked

public void markBlocked(int i,
                        int j)

moveProbabilisticallyFrom

public CellWorldPosition moveProbabilisticallyFrom(int i,
                                                   int j,
                                                   java.lang.String direction,
                                                   Randomizer r)

setReward

public void setReward(int i,
                      int j,
                      double reward)

unblockedCells

public java.util.List<Cell> unblockedCells()

isBlocked

public boolean isBlocked(Pair<java.lang.Integer,java.lang.Integer> p)

getTransitionProbability

public double getTransitionProbability(CellWorldPosition startingPosition,
                                       java.lang.String actionDesired,
                                       CellWorldPosition endingPosition)

getTransitionModel

public MDPTransitionModel<CellWorldPosition,java.lang.String> getTransitionModel()

Specified by:

getTransitionModel in interface MDPSource<CellWorldPosition,java.lang.String>

getRewardFunction

public MDPRewardFunction<CellWorldPosition> getRewardFunction()

Specified by:

getRewardFunction in interface MDPSource<CellWorldPosition,java.lang.String>

unblockedPositions

public java.util.List<CellWorldPosition> unblockedPositions()

asMdp

public MDP<CellWorldPosition,java.lang.String> asMdp()

Specified by:

asMdp in interface MDPSource<CellWorldPosition,java.lang.String>

getNonFinalStates

public java.util.List<CellWorldPosition> getNonFinalStates()

Specified by:

getNonFinalStates in interface MDPSource<CellWorldPosition,java.lang.String>

getFinalStates

public java.util.List<CellWorldPosition> getFinalStates()

Specified by:

getFinalStates in interface MDPSource<CellWorldPosition,java.lang.String>

setTerminalState

public void setTerminalState(int i,
                             int j)

setTerminalState

public void setTerminalState(CellWorldPosition position)

getInitialState

public CellWorldPosition getInitialState()

Specified by:

getInitialState in interface MDPSource<CellWorldPosition,java.lang.String>

execute

public MDPPerception<CellWorldPosition> execute(CellWorldPosition position,
                                                java.lang.String action,
                                                Randomizer r)

Specified by:

execute in interface MDPSource<CellWorldPosition,java.lang.String>

getAllActions

public java.util.List<java.lang.String> getAllActions()

Specified by:

getAllActions in interface MDPSource<CellWorldPosition,java.lang.String>