Ians Final Project
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Requires the boing.wav file found under Fr. Chris's Bounce under Final Projects
Click here for a working demonstration
CrazyBall.java
import java.awt.event.*;
import java.applet.Applet;
import java.awt.*;
import javax.swing.*;
public class CrazyBall extends Applet implements ActionListener, MouseMotionListener
{
Sound boing;
Timer timer;
Image virtualMem;
Graphics gBuffer;
Ball ball1, ball2, ball3, ball4;
Player player1;
Wall top,bottom,left,right;
int appletWidth;
int appletHeight;
int frame;
int lastFrame;
Button myButton;
int count;
int score;
// OUR CLASS IS A SUBCLASS OF APPLET
/**
* this init() method will be run at the beginning
* and where we create the Listeners
*/
public void init()
{
boing = new Sound("boing.wav",this);
ball1 = new Ball(10);
ball2 = new Ball(10);
ball3 = new Ball(10);
ball4 = new Ball(10);
player1 = new Player(10);
top = new Wall(0,0,800,10);
bottom = new Wall(0,470,800,10);
left = new Wall(0,10,10,590);
right = new Wall(630,10,10,590);
appletWidth = 640;
appletHeight = 480;
score=0;
timer=new Timer(1, this);
lastFrame=appletWidth;
virtualMem = createImage(appletWidth,appletHeight);
gBuffer = virtualMem.getGraphics();
gBuffer.setColor(Color.white);
gBuffer.fillRect(0,0,appletWidth,appletHeight);
resize(640, 480);
myButton= new Button("Do It Again");
//the class is its own button listener
myButton.addActionListener (this);
add(myButton);
this.addMouseMotionListener(this);
}
public void paint(Graphics g)
{
//We draw using the object methods of
// the graphics buffer, not what is
// currently on the screen
gBuffer.setColor(Color.white);
gBuffer.fillRect(0,0,appletWidth,appletHeight);gBuffer.setColor(Color.black);
gBuffer.setColor(Color.black);
gBuffer.drawString("Score: "+score, 20, 20);
ball1.draw(gBuffer);
ball2.draw(gBuffer);
ball3.draw(gBuffer);
ball4.draw(gBuffer);
player1.draw(gBuffer);
top.draw(gBuffer);
bottom.draw(gBuffer);
left.draw(gBuffer);
right.draw(gBuffer);
//Now we send the result to the screen
g.drawImage(virtualMem,0,0,this);
}
public void update(Graphics g)
{
paint(g); //get rid of flicker with this method
}
/**
* ActionListener is an interface and
* requires the actionPerformed() method
* to be defined..in this case we
* look for a restart button being pressed
*/
public void actionPerformed(ActionEvent e)
{
Object source = e.getSource();
if (source == timer)
{
score++;
frame++;
frame%=100;
ball1.move();
ball2.move();
ball3.move();
ball4.move();
if (top.touches(ball1) || bottom.touches(ball1))
{
ball1.bounceVertical();
boing.play();
count++;
}
if (left.touches(ball1) || right.touches(ball1))
{
ball1.bounceHorizontal();
boing.play();
count++;
}
if (top.touches(ball2) || bottom.touches(ball2))
{
ball2.bounceVertical();
boing.play();
count++;
}
if (left.touches(ball2) || right.touches(ball2))
{
ball2.bounceHorizontal();
boing.play();
count++;
}
if (top.touches(ball3) || bottom.touches(ball3))
{
ball3.bounceVertical();
boing.play();
count++;
}
if (left.touches(ball3) || right.touches(ball3))
{
ball3.bounceHorizontal();
boing.play();
count++;
}
if (top.touches(ball4) || bottom.touches(ball4))
{
ball4.bounceVertical();
boing.play();
count++;
}
if (left.touches(ball4) || right.touches(ball4))
{
ball4.bounceHorizontal();
boing.play();
count++;
}
if (player1.touches(ball1) || player1.touches(ball2) || player1.touches(ball3) || player1.touches(ball4))
{
timer.stop();
myButton.setLabel("Play Again");
ball1.setVisable(false);
ball2.setVisable(false);
ball3.setVisable(false);
ball4.setVisable(false);
}
}
else
{//restart button pressed
if (timer.isRunning())
{
timer.stop();
myButton.setLabel("Start");
ball1.setVisable(false);
ball2.setVisable(false);
ball3.setVisable(false);
ball4.setVisable(false);
}
else
{
score=0;
timer.start();
myButton.setLabel("Stop");
ball1=new Ball(10);
ball1.setVisable(true);
ball2=new Ball(10);
ball2.setVisable(true);
ball3=new Ball(10);
ball3.setVisable(true);
ball4=new Ball(10);
ball4.setVisable(true);
boing.play();
}
}
repaint();
}
@Override
public void mouseDragged(MouseEvent arg0)
{
}
@Override
public void mouseMoved(MouseEvent e)
{
player1.move(e.getX(), e.getY());
repaint();
}
}
Sound.java
import java.applet.*;
import java.net.URL;
public class Sound
{
private AudioClip clip;
public Sound(String fileName, Applet a)
{
URL soundToPlay = getClass().getResource(fileName);
clip = a.getAudioClip(soundToPlay);
}
public void play()
{
clip.play();
}
public void loop()
{
clip.loop();
}
}
Wall.java
import java.awt.Color;
import java.awt.Graphics;
import java.awt.geom.Rectangle2D;
public class Wall
{
private Rectangle2D.Double rect;
private Color color;
private int x,y,width,height;
public Wall(int x, int y, int width, int height)
{
rect=new Rectangle2D.Double(x, y, width, height);
this.x=x;
this.y=y;
this.width=width;
this.height=height;
setColor(Color.BLACK);
}
public boolean touches(Ball ball)
{
return rect.intersects(ball.area());
}
public void draw(Graphics g)
{
Color c=g.getColor();
g.setColor(color);
g.fillRect(x, y, width, height);
g.setColor(c);
}
public void setColor(Color color)
{
this.color = color;
}
public Color getColor()
{
return color;
}
}
Player.java
import java.awt.Color;
import java.awt.Graphics;
public class Player
{
private int radius;
private int x;
private int y;
public Player(int radius)
{
x=randInt(350,450);
y=randInt(250,350);
this.radius=radius;
}
public void move(int x, int y){
this.x = x;
this.y = y;
}
public void draw(Graphics g)
{
Color c = g.getColor();
g.setColor(Color.RED);
g.fillOval(x-radius, y-radius, 2*radius, 2*radius);
g.setColor(c);
}
public int randInt(int min, int max)
{
return min+(int)((max-min)*Math.random());
}
public boolean touches(Ball ball)
{
boolean result = false;
if (((ball.getX()-x)*(ball.getX()-x))+((ball.getY()-y)*(ball.getY()-y)) <= 400)
return true;
return result;
}
}
Ball.java
import java.awt.Color;
import java.awt.Graphics;
import java.awt.geom.Rectangle2D;
public class Ball
{
private int x;
private int y;
private int radius;
private int rise;
private int run;
private boolean visable;
public Ball(int radius)
{
x=randInt(350,450);
y=randInt(250,350);
this.radius=radius;
rise=randInt(1,8);
run=randInt(-8,8);
setVisable(false);
}
public int randInt(int min, int max)
{
return min+(int)((max-min)*Math.random());
}
public void move()
{
x+=run;
y+=rise;
}
public void bounceVertical()
{
rise*=-1;
}
public void bounceHorizontal()
{
run*=-1;
}
public void draw(Graphics g)
{
if (visable){
Color c=g.getColor();
g.setColor(Color.BLUE);
g.fillOval(x-radius, y-radius, 2*radius, 2*radius);
g.setColor(c);
}
}
public void setVisable(boolean visable)
{
this.visable = visable;
}
public boolean isVisable()
{
return visable;
}
public Rectangle2D area()
{
return new Rectangle2D.Double(x-radius, y-radius, 2*radius, 2*radius);
}
public void setRise(int rise)
{
this.rise=rise;
}
public void setRun(int run)
{
this.run=run;
}
public int getRise()
{
return rise;
}
public int getRun()
{
return run;
}
public void setX(int x)
{
this.x=x;
}
public void setY(int y)
{
this.y=y;
}
public int getX()
{
return x;//center x
}
public int getY()
{
return y;//center y
}
public int getRadius()
{
return radius;
}
}