ks.client.gamefactory.skin
Class BouncingBalls

java.lang.Object
  |
  +--ks.client.gamefactory.skin.BouncingBalls

All Implemented Interfaces:

java.lang.Runnable

public class BouncingBalls

extends java.lang.Object

implements java.lang.Runnable

Class for presenting a ball bouncing around, and off the various widgets, using the same background color.

While an object is being dragged by the container, no bouncing will occur

Field Summary

protected java.util.Vector	balls Balls in motion.
protected Container	container Container over which we are operating; we need to have dragging.
protected java.awt.Rectangle	containerBounds Bounds for container -- used to detect off the screen movement.
protected int	delay Delay between bounces.
protected java.awt.Graphics	myGraphics Graphics context in which to draw.
protected boolean	onePerChild Should there just be a single ball, or one per RectangleHierarchy child?
protected int	radius size of ball radius.
protected java.lang.Thread	thread The thread to oversee the scrolling.
protected boolean	visible Assume we are originally visible.

Constructor Summary

BouncingBalls(Container container)
ImageScroller constructor with a single Bouncing Ball.

BouncingBalls(Container container, boolean onePerChild)
ImageScroller constructor.

Method Summary

int	getDelay() Return delay between image scrolling.
int	getRadius() Return size of Ball.
boolean	isVisible() Determine whether image is visible.
void	offsetBallPosition() For each ball in play, update its new position.
protected int	randomOffset(int width) Returns a number from (-width/2) ..
void	run() Thread will operate by pausing n milliseconds and then checking if container is in a drag.
void	setDelay(int newDelay) Set the time delay between image scrolling.
void	setRadius(int newRadius) Set size of ball.
void	setVisible(boolean newVisible) Setting to invisible will cause this thread to stop.
void	visit(RectangleHierarchy node) Copy the appropriate image onto Graphics g at (x,y,width,height) taking into account the scrolling image.
void	visit(RectangleHierarchy node, java.awt.Rectangle clip) Copy the appropriate image onto Graphics g at (x,y,width,height) taking into account the scrolling image.

Methods inherited from class java.lang.Object

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

Field Detail

balls

protected java.util.Vector balls

Balls in motion.

delay

protected int delay

Delay between bounces.

onePerChild

protected boolean onePerChild

Should there just be a single ball, or one per RectangleHierarchy child?

myGraphics

protected java.awt.Graphics myGraphics

Graphics context in which to draw.

container

protected Container container

Container over which we are operating; we need to have dragging.

containerBounds

protected java.awt.Rectangle containerBounds

Bounds for container -- used to detect off the screen movement.

radius

protected int radius

size of ball radius.

thread

protected java.lang.Thread thread

The thread to oversee the scrolling.

visible

protected boolean visible

Assume we are originally visible.

Constructor Detail

BouncingBalls

public BouncingBalls(Container container)

ImageScroller constructor with a single Bouncing Ball.

BouncingBalls

public BouncingBalls(Container container,
                     boolean onePerChild)

ImageScroller constructor.

Method Detail

getDelay

public int getDelay()

Return delay between image scrolling.

Returns:

int

getRadius

public int getRadius()

Return size of Ball. Creation date: (1/5/02 12:17:41 AM)

Returns:

int

isVisible

public boolean isVisible()

Determine whether image is visible.

Returns:

boolean

offsetBallPosition

public void offsetBallPosition()

For each ball in play, update its new position.

randomOffset

protected int randomOffset(int width)

Returns a number from (-width/2) .. 0 .. (width/2)

run

public void run()

Thread will operate by pausing n milliseconds and then checking if container is in a drag. Once it is verified that we can scroll, we do so, and the entire container background is redrawn.

Specified by:

run in interface java.lang.Runnable

setDelay

public void setDelay(int newDelay)

Set the time delay between image scrolling.

Parameters:

newDelay - int

setRadius

public void setRadius(int newRadius)

Set size of ball. Creation date: (1/5/02 12:17:41 AM)

Parameters:

newRadius - int

setVisible

public void setVisible(boolean newVisible)

Setting to invisible will cause this thread to stop.

Parameters:

newVisible - boolean

visit

public void visit(RectangleHierarchy node)

Copy the appropriate image onto Graphics g at (x,y,width,height) taking into account the scrolling image.

visit

public void visit(RectangleHierarchy node,
                  java.awt.Rectangle clip)

Copy the appropriate image onto Graphics g at (x,y,width,height) taking into account the scrolling image.

Note: only Leaf nodes are drawn.

Clip to the given Rectangle clip area. [clip is unaffected by this invocation.]