pacworld

Class PacPercept

java.lang.Object

agent.Percept

pacworld.PacPercept

public class PacPercept
extends Percept

A percept in the package delivery world.

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	bump
static double	DESTINATION_NOISE
protected VisiblePackage	heldPackage
static double	LOCATION_NOISE
protected java.lang.String[]	messages
static double	PHANTOM_PACKAGE_NOISE
static int	VIS_RADIUS
protected java.util.ArrayList<VisibleAgent>	visAgents
protected java.util.ArrayList<VisiblePackage>	visPackages
protected int	worldSize

Constructor Summary

Constructors

Constructor and Description
PacPercept(PackageState state, Agent agent) Construct a package delivery world percept.

Method Summary

Modifier and Type	Method and Description
boolean	feelBump() Returns true if the percept reflects that the agent bumped into an obstacle as a result of its most recent action.
VisiblePackage	getHeldPackage() Returns the visible package that the agent is currently holding.
java.lang.String[]	getMessages() Returns an array of strings representing messages sent since the agent's last turn.
VisibleAgent[]	getVisAgents() Returns an array of the visible agents.
VisiblePackage[]	getVisPackages() Return an array of the visible packages.
int	getWorldSize() Returns the length of the world.
protected boolean	inRange(int ax, int ay, int tx, int ty)
void	printPercept()

Methods inherited from class java.lang.Object

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

Field Detail

bump

protected boolean bump

visAgents

protected java.util.ArrayList<VisibleAgent> visAgents

visPackages

protected java.util.ArrayList<VisiblePackage> visPackages

messages

protected java.lang.String[] messages

heldPackage

protected VisiblePackage heldPackage

worldSize

protected int worldSize

VIS_RADIUS

public static final int VIS_RADIUS

See Also:

Constant Field Values

LOCATION_NOISE

public static double LOCATION_NOISE

PHANTOM_PACKAGE_NOISE

public static double PHANTOM_PACKAGE_NOISE

DESTINATION_NOISE

public static double DESTINATION_NOISE

Constructor Detail

PacPercept

public PacPercept(PackageState state,
                  Agent agent)

Construct a package delivery world percept. The agents can see everything in 9x9 grid centered on it. If the agent moved into an obstacle on the previous turn the agent will feel a bump.

Method Detail

feelBump

public boolean feelBump()

Returns true if the percept reflects that the agent bumped into an obstacle as a result of its most recent action.

getWorldSize

public int getWorldSize()

Returns the length of the world. Note, the world is a square, so this also doubles as its height.

getVisAgents

public VisibleAgent[] getVisAgents()

Returns an array of the visible agents. Each element is of type VisibleAgent.

getVisPackages

public VisiblePackage[] getVisPackages()

Return an array of the visible packages. Each element is of type VisiblePackage. Only packages that have not been delivered will appear.

getMessages

public java.lang.String[] getMessages()

Returns an array of strings representing messages sent since the agent's last turn. There are only as many elements as messages sent, and there is no identification of which agent sent which message.

getHeldPackage

public VisiblePackage getHeldPackage()

Returns the visible package that the agent is currently holding. If the agent is not holding a package, returns null. Note, since the agent can see all packages in the 9x9 square centered on itself, this package is also returned by getVisPackages().

Returns:

printPercept

public void printPercept()

inRange

protected boolean inRange(int ax,
                          int ay,
                          int tx,
                          int ty)