stanford.karel

Class HeadlessKarel

java.lang.Object

stanford.karel.HeadlessKarel

All Implemented Interfaces:

ProgramInterface, Runnable, KarelInterface

Direct Known Subclasses:

HeadlessSuperKarel

public class HeadlessKarel
extends Object

A version of a Karel superclass that doesn't crash when run in headless (non-graphical) mode.

Field Summary

Fields inherited from interface acm.program.ProgramInterface

CENTER

Constructor Summary

Constructors

Constructor and Description
HeadlessKarel()

Method Summary

Modifier and Type	Method and Description
boolean	beepersInBag()
boolean	beepersPresent()
protected void	checkWorld(String caller)
void	exit() Exits the program.
boolean	facingEast()
boolean	facingNorth()
boolean	facingSouth()
boolean	facingWest()
boolean	frontIsBlocked()
boolean	frontIsClear()
int	getBeepersInBag()
int	getDirection()
Point	getLocation()
Set<Point>	getLocationsVisited()
protected String	getSaveFile()
String	getTitle()
KarelWorld	getWorld()
protected String	getWorldFile()
boolean	hasVisited(int x, int y)
boolean	hasVisited(Point pt)
void	init() Initializes Karel.
boolean	leftIsBlocked()
boolean	leftIsClear()
static void	main(String[] args)
void	move()
boolean	noBeepersInBag()
boolean	noBeepersPresent()
boolean	notFacingEast()
boolean	notFacingNorth()
boolean	notFacingSouth()
boolean	notFacingWest()
void	pause(double ms)
void	pickBeeper()
void	print(Object value)
void	print(String value)
void	printf(String format, Object... args)
void	println()
void	println(Object value)
void	println(String value)
void	putBeeper()
boolean	rightIsBlocked()
boolean	rightIsClear()
void	run()
void	setBeepersInBag(int nBeepers)
void	setDirection(int dir)
void	setDisplayOneFlag(boolean flag)
static void	setExitEnabled(boolean enabled)
void	setLocation(int x, int y)
void	setLocation(Point pt)
void	setParameterTable(Map<String,String> table)
void	setSaveFile(String filename)
void	setStartupObject(Object obj)
void	setTitle(String title)
void	setTrackLocationsVisited(boolean track)
void	setWorld(KarelWorld world)
void	setWorldFile(String filename)
void	start()
void	start(String[] args) Starts a KarelProgram containing this Karel instance, passing it the specified arguments.
void	turnLeft()

Methods inherited from class java.lang.Object

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

Constructor Detail

HeadlessKarel

public HeadlessKarel()

Method Detail

exit

public final void exit()

Exits the program. Saves to a file first if needed.

getLocationsVisited

public final Set<Point> getLocationsVisited()

getSaveFile

protected final String getSaveFile()

getWorldFile

protected final String getWorldFile()

hasVisited

public final boolean hasVisited(int x,
                                int y)

hasVisited

public final boolean hasVisited(Point pt)

init

public final void init()

Initializes Karel. You cannot override this method; we need it to be called as-is.

move

public final void move()

Specified by:

move in interface KarelInterface

run

public void run()

Specified by:

run in interface ProgramInterface

Specified by:

run in interface Runnable

Specified by:

run in interface KarelInterface

setExitEnabled

public static void setExitEnabled(boolean enabled)

setSaveFile

public final void setSaveFile(String filename)

setTrackLocationsVisited

public final void setTrackLocationsVisited(boolean track)

setWorldFile

public final void setWorldFile(String filename)

start

public final void start()

Specified by:

start in interface ProgramInterface

getTitle

public String getTitle()

print

public void print(Object value)

print

public void print(String value)

printf

public void printf(String format,
                   Object... args)

println

public void println()

println

public void println(Object value)

println

public void println(String value)

setTitle

public void setTitle(String title)

turnLeft

public void turnLeft()

Specified by:

turnLeft in interface KarelInterface

pickBeeper

public void pickBeeper()

Specified by:

pickBeeper in interface KarelInterface

putBeeper

public void putBeeper()

Specified by:

putBeeper in interface KarelInterface

frontIsClear

public boolean frontIsClear()

Specified by:

frontIsClear in interface KarelInterface

frontIsBlocked

public boolean frontIsBlocked()

Specified by:

frontIsBlocked in interface KarelInterface

leftIsClear

public boolean leftIsClear()

Specified by:

leftIsClear in interface KarelInterface

leftIsBlocked

public boolean leftIsBlocked()

Specified by:

leftIsBlocked in interface KarelInterface

rightIsClear

public boolean rightIsClear()

Specified by:

rightIsClear in interface KarelInterface

rightIsBlocked

public boolean rightIsBlocked()

Specified by:

rightIsBlocked in interface KarelInterface

beepersPresent

public boolean beepersPresent()

Specified by:

beepersPresent in interface KarelInterface

noBeepersPresent

public boolean noBeepersPresent()

Specified by:

noBeepersPresent in interface KarelInterface

beepersInBag

public boolean beepersInBag()

Specified by:

beepersInBag in interface KarelInterface

noBeepersInBag

public boolean noBeepersInBag()

Specified by:

noBeepersInBag in interface KarelInterface

facingNorth

public boolean facingNorth()

Specified by:

facingNorth in interface KarelInterface

facingEast

public boolean facingEast()

Specified by:

facingEast in interface KarelInterface

facingSouth

public boolean facingSouth()

Specified by:

facingSouth in interface KarelInterface

facingWest

public boolean facingWest()

Specified by:

facingWest in interface KarelInterface

notFacingNorth

public boolean notFacingNorth()

Specified by:

notFacingNorth in interface KarelInterface

notFacingEast

public boolean notFacingEast()

Specified by:

notFacingEast in interface KarelInterface

notFacingSouth

public boolean notFacingSouth()

Specified by:

notFacingSouth in interface KarelInterface

notFacingWest

public boolean notFacingWest()

Specified by:

notFacingWest in interface KarelInterface

pause

public void pause(double ms)

Specified by:

pause in interface ProgramInterface

Specified by:

pause in interface KarelInterface

main

public static void main(String[] args)

setParameterTable

public void setParameterTable(Map<String,String> table)

Specified by:

setParameterTable in interface ProgramInterface

setStartupObject

public void setStartupObject(Object obj)

Specified by:

setStartupObject in interface ProgramInterface

start

public void start(String[] args)

Starts a KarelProgram containing this Karel instance, passing it the specified arguments.

Specified by:

start in interface ProgramInterface

getLocation

public Point getLocation()

Specified by:

getLocation in interface KarelInterface

setLocation

public void setLocation(Point pt)

Specified by:

setLocation in interface KarelInterface

setLocation

public void setLocation(int x,
                        int y)

Specified by:

setLocation in interface KarelInterface

getDirection

public int getDirection()

Specified by:

getDirection in interface KarelInterface

setDirection

public void setDirection(int dir)

Specified by:

setDirection in interface KarelInterface

getBeepersInBag

public int getBeepersInBag()

Specified by:

getBeepersInBag in interface KarelInterface

setBeepersInBag

public void setBeepersInBag(int nBeepers)

Specified by:

setBeepersInBag in interface KarelInterface

getWorld

public KarelWorld getWorld()

Specified by:

getWorld in interface KarelInterface

setWorld

public void setWorld(KarelWorld world)

Specified by:

setWorld in interface KarelInterface

checkWorld

protected void checkWorld(String caller)

setDisplayOneFlag

public void setDisplayOneFlag(boolean flag)