Class Ball

java.lang.Object
  |
  +--Ball

All Implemented Interfaces:

SimThing

public class Ball

extends java.lang.Object

implements SimThing

A small ball object that wanders randomly around a bounded area. CSE143 lecture demo Au01, Sp03

Version:

10/18/01, 4/16/03

Author:

Hal Perkins

Constructor Summary

Ball(int x, int y, int dx, int dy, java.awt.Color c, int diameter, int maxx, int maxy)
Construct a new Ball

Method Summary

void	action() Perform an appropriate action on each cycle of the simulation
void	paintComponent(java.awt.Graphics g) Display this ball on the given graphics context
java.lang.String	toString() Return a String representation of this Ball

Methods inherited from class java.lang.Object

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

Constructor Detail

Ball

public Ball(int x,
            int y,
            int dx,
            int dy,
            java.awt.Color c,
            int diameter,
            int maxx,
            int maxy)

Construct a new Ball

Parameters:

x - initial x pixel coordinate of center of the ball

y - initial y pixel coordinate of center of the ball

dx - initial velocity in x direction in pixels per cycle

dy - initial velocity in y direction in pixels per cycle

c - color of the ball

diameter - diameter of the ball in pixels

maxx - largest possible x coordinate

maxy - largest possible y coordinate

Method Detail

action

public void action()

Perform an appropriate action on each cycle of the simulation

Specified by:

action in interface SimThing

paintComponent

public void paintComponent(java.awt.Graphics g)

Display this ball on the given graphics context

Specified by:

paintComponent in interface SimThing

Parameters:

g - the graphics context where this ball should be drawn

toString

public java.lang.String toString()

Return a String representation of this Ball

Overrides:

toString in class java.lang.Object