burlap.domain.singleagent.cartpole

Class CartPoleDomain.MovementAction

java.lang.Object

burlap.oomdp.singleagent.Action

burlap.domain.singleagent.cartpole.CartPoleDomain.MovementAction

Enclosing class:

CartPoleDomain

protected static class CartPoleDomain.MovementAction
extends Action

A movement action which applies force in the specified direction.

Author:

James MacGlashan

Field Summary

Fields inherited from class burlap.oomdp.singleagent.Action

actionObservers, domain, name, parameterClasses, parameterOrderGroup

Constructor Summary

Constructors

Constructor and Description
CartPoleDomain.MovementAction(java.lang.String name, Domain domain, double dir, CartPoleDomain.CPPhysicsParams physParams) Initializes.

Method Summary

Methods

Modifier and Type	Method and Description
java.util.List<TransitionProbability>	getTransitions(State s, java.lang.String[] params) Returns the transition probabilities for applying this action in the given state with the given set of parameters.
protected State	performActionHelper(State s, java.lang.String[] params) This method determines what happens when an action is applied in the given state with the given parameters.

Methods inherited from class burlap.oomdp.singleagent.Action

addActionObserver, applicableInState, applicableInState, clearAllActionsObservers, deterministicTransition, equals, getAllApplicableGroundedActions, getAllApplicableGroundedActionsFromActionList, getDomain, getName, getParameterClasses, getParameterOrderGroups, getTransitions, hashCode, init, isPrimitive, parametersAreObjects, performAction, performAction

Methods inherited from class java.lang.Object

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

Constructor Detail

CartPoleDomain.MovementAction

public CartPoleDomain.MovementAction(java.lang.String name,
                             Domain domain,
                             double dir,
                             CartPoleDomain.CPPhysicsParams physParams)

Initializes.

Parameters:

name - the name of the action.

domain - the domain object to which this action will be associated.

dir - the direction of force applied to the cart.

physParams - the CartPoleDomain.CPPhysicsParams object specifying the physics to use for movement

Method Detail

performActionHelper

protected State performActionHelper(State s,
                        java.lang.String[] params)

Description copied from class: Action

This method determines what happens when an action is applied in the given state with the given parameters. The State object s may be directly modified in this method since the parent method first copies the input state to pass to this helper method. The resulting state (which may be s) should then be returned.

Specified by:

performActionHelper in class Action

Parameters:

s - the state to perform the action on

params - a String array specifying the action object parameters

Returns:

the resulting State from performing this action

getTransitions

public java.util.List<TransitionProbability> getTransitions(State s,
                                                   java.lang.String[] params)

Description copied from class: Action

Returns the transition probabilities for applying this action in the given state with the given set of parameters. Transition probabilities are specified as list of TransitionProbability objects. The list is only required to contain transitions with non-zero probability. Since not all planning algorithms require the full transition dynamics (and since it's impossible to enumerate them in some infinite state space domains), this method is not requried to be implemented. However, it will throw an UnsupportedOperationException if it is not overriden by the Action subclass if it is called by an algorithm that requires it.

Overrides:

getTransitions in class Action

Parameters:

s - the state from which the transition probabilities when applying this action will be returned.

params - a String array specifying the action object parameters

Returns:

a List of transition probabilities for applying this action in the given state with the given set of parameters