burlap.domain.singleagent.gridworld

Class GridWorldDomain.WallToPF

java.lang.Object

burlap.mdp.core.oo.propositional.PropositionalFunction

burlap.domain.singleagent.gridworld.GridWorldDomain.WallToPF

Enclosing class:

GridWorldDomain

public class GridWorldDomain.WallToPF
extends PropositionalFunction

Propositional function for indicating if a wall is in a given position relative to the agent position

Author:

James MacGlashan

Field Summary

Fields

Modifier and Type	Field and Description
protected int	xdelta The relative x distance from the agent of the cell to check
protected int	ydelta The relative y distance from the agent of the cell to check

Fields inherited from class burlap.mdp.core.oo.propositional.PropositionalFunction

name, parameterClasses, parameterOrderGroup

Constructor Summary

Constructors

Constructor and Description
WallToPF(java.lang.String name, java.lang.String[] parameterClasses, int direction) Initializes the function.

Method Summary

Modifier and Type	Method and Description
boolean	isTrue(OOState st, java.lang.String... params) Returns whether the propositional function is true for the given state with the given parameters This version is preferred to the comma delimited version.

Methods inherited from class burlap.mdp.core.oo.propositional.PropositionalFunction

allGroundings, allGroundingsFromList, equals, findPF, getName, getParameterClasses, getParameterOrderGroups, hashCode, init, someGroundingIsTrue, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

xdelta

protected int xdelta

The relative x distance from the agent of the cell to check

ydelta

protected int ydelta

The relative y distance from the agent of the cell to check

Constructor Detail

WallToPF

public WallToPF(java.lang.String name,
                java.lang.String[] parameterClasses,
                int direction)

Initializes the function.

Parameters:

name - the name of the function

parameterClasses - the object class parameter types

direction - the unit distance direction from the agent to check for a wall (0,1,2,3 corresponds to north,south,east,west).

Method Detail

isTrue

public boolean isTrue(OOState st,
                      java.lang.String... params)

Description copied from class: PropositionalFunction

Returns whether the propositional function is true for the given state with the given parameters This version is preferred to the comma delimited version.

Specified by:

isTrue in class PropositionalFunction

Parameters:

st - the state that is being checked

params - the parameters being passed in to the propositional function

Returns:

whether the propositional function is true