Class Robot

java.lang.Object
  java.lang.Thread
      objectdraw.ActiveObject
          Robot

All Implemented Interfaces:

Runnable

Direct Known Subclasses:

ClingerRobot, RandomRobot, StupidRobot

public abstract class Robot
extends objectdraw.ActiveObject

Robot moves around a bunch of obstacles. -- including its bounding rectangle, which is made up of four filledRects starts at Location passed in to constructor abstract method handleObstacles() -- used to modify motion if obstacle hit

Version:

21x06

Author:

Rhys Price Jones

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

protected objectdraw.DrawingCanvas	mycanvas
(package private) Image	myImage
(package private) objectdraw.VisibleImage	myVimage
protected Vector<Obstacle>	obstacles
protected static double	PAUSETIME
protected static int	SIZE
protected double	xSpeed
protected double	ySpeed

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Robot(Image portrait, objectdraw.DrawingCanvas canvas, objectdraw.Location point, Vector<Obstacle> obstacles)
Constructor for objects of class Robot note -- do not follow the textbook advice to end the constructor with start() It makes it difficult to extend the class Since this is abstract, that would be a disaster!

Method Summary

abstract void	handleObstacles(objectdraw.Location lastLoc) abstract handleObstacles what to do if we hit one of the obstacles
void	run() Method run -- invoked by start()
void	setSpeed() setSpeed used to set initial speed components xSpeed and ySpeed must make assignment to xSpeed and ySpeed
void	step()

Methods inherited from class objectdraw.ActiveObject

defer, getTime, pause, pause, pause, yield

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString

Methods inherited from class java.lang.Object

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

Field Detail

mycanvas

protected objectdraw.DrawingCanvas mycanvas

myImage

Image myImage

myVimage

objectdraw.VisibleImage myVimage

obstacles

protected Vector<Obstacle> obstacles

PAUSETIME

protected static final double PAUSETIME

See Also:

Constant Field Values

SIZE

protected static final int SIZE

See Also:

Constant Field Values

xSpeed

protected double xSpeed

ySpeed

protected double ySpeed

Constructor Detail

Robot

public Robot(Image portrait,
             objectdraw.DrawingCanvas canvas,
             objectdraw.Location point,
             Vector<Obstacle> obstacles)

Constructor for objects of class Robot note -- do not follow the textbook advice to end the constructor with start() It makes it difficult to extend the class Since this is abstract, that would be a disaster!

Parameters:

portrait - an image of me

canvas - in which it will be drawn

point - my starting position

obstacles - the obstacles in my pit

Method Detail

handleObstacles

public abstract void handleObstacles(objectdraw.Location lastLoc)

abstract handleObstacles what to do if we hit one of the obstacles

Parameters:

lastLoc - -- the most recent good position I was in

run

public void run()

Method run -- invoked by start()

Specified by:

run in interface Runnable

Overrides:

run in class Thread

setSpeed

public void setSpeed()

setSpeed used to set initial speed components xSpeed and ySpeed must make assignment to xSpeed and ySpeed

step

public void step()