here is the final incarnation of it, and by the way, the game loops.
//********************************************************************
//Moving Circle Author: Gabriel B.
//
//plays a 2d game of ping pong.
//********************************************************************
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.Random;
public class MovingCirclePanel extends JPanel
{
private final int WIDTH = 304, HEIGHT = 300;
static Random rand = new Random();
public boolean isFary = false;
public boolean isFarx = false;
public boolean isFarz = false;
public boolean isTrue = true;
public boolean isTrue2 = true;
public boolean coloryellow = true;
public boolean sumoIsTrue = false;
public boolean isSuperSpeed = false;
public boolean isHighStakes = false;
public boolean isSloMo = false;
public boolean isSpeedball = false;
public boolean modifiersON = true;
public boolean isBigBall = false;
Timer timer;
public static int renew = 0;
public static int count;
public static int countGain = 1;
public static int count2;
public static int countGain2 = 1;
public static int sloMo = 0;
public static int speedball = 0;
public static int sumo = 0;
public static int superSpeed = 0;
public static int highStakes = 0;
public static int obstruction = 0;
public static int bigBall = 0;
public static int powerups = 0;
public static int z = 0;
public static int z_decay = 5;
public static int x = rand.nextInt(250);
public static int x_decay = 4;
public static int y = rand.nextInt(250);
public static int y_decay = 6;
public static int ballSize = 10;
public static int lengthAI = 50;
public static int lengthYou = 50;
public static int w = 0;
public static int w_decay = 25;
//-----------------------------------------------------------------
// Constructor: Sets up this panel and loads the images.
//-----------------------------------------------------------------
public MovingCirclePanel()
{
addKeyListener (new DirectionListener());
timer = new Timer(20, new ReboundListener());
setBackground (Color.black);
setPreferredSize (new Dimension(WIDTH, HEIGHT));
setFocusable(true);
timer.start();
}
//-----------------------------------------------------------------
// Draws the image in the current location.
//-----------------------------------------------------------------
public void paintComponent (Graphics page)
{
super.paintComponent (page);
page.setColor(Color.gray);//background
page.fillRect(0, 0, 304, 300);
page.setColor (Color.yellow);
page.fillOval (x, y, ballSize, ballSize);//ball
page.fillRect(277, z, 2, lengthAI);//AI paddle
page.fillRect(23, w, 2, lengthYou);//your paddle
if(coloryellow)
{
page.setColor (Color.yellow);
}
else
{
page.setColor (Color.blue);
}
page.fillRect(0, 0, 2, 300);
page.fillRect(302, 0, 2, 300);
if (isSloMo)
{
page.drawString("Slow Mo", 135, 145);
}
else
{
}
if(sumoIsTrue)
{
page.drawString("Sumo", 135, 145);
}
else
{
}
if(((obstruction > 1449 && obstruction < 1531) || (obstruction > 3009 && obstruction < 30)) && modifiersON)
{
page.fillRect(70, 70, 180, 160);//Obstruction
page.setColor(Color.black);
page.drawString("Obstruction", 135, 145);
obstruction++;
page.setColor(Color.yellow);
}
else
{
obstruction++;
}
if(isBigBall)
{
page.drawString("Big Ball", 135, 165);
}
else
{
}
if(isHighStakes)
{
page.drawString("High Stakes", 135, 145);
}
if(isSuperSpeed)
{
page.drawString("SuperSpeed", 135, 145);
}
else
{
}
if (isSpeedball)
{
page.drawString("Speedball", 135, 145);
}
else
{
}
if(count >= 12)
{
if(renew < 80)
{
page.setColor (Color.white);
page.fillRect(0, 0, 310, 310);
page.setColor (Color.black);
page.drawString("You Win", 115, 10);
count2 = 0;
renew++;
}
else
{
count = 0;
count2 = 0;
sloMo = 0;
speedball = 0;
sumo = 0;
superSpeed = 0;
highStakes = 0;
obstruction = 0;
renew = 0;
}
}
else if(count2 >= 12)
{
if(renew < 80)
{
page.setColor (Color.white);
page.fillRect(0, 0, 310, 310);
page.setColor (Color.black);
page.drawString("Computer wins", 110, 10);
count = 0;
renew++;
}
else
{
count = 0;
count2 = 0;
sloMo = 0;
speedball = 0;
sumo = 0;
superSpeed = 0;
highStakes = 0;
obstruction = 0;
renew = 0;
}
}
else
{
page.drawString("player points: "+count, 105, 10);
page.drawString("AI points: "+count2, 105, 30);
}
}
private class ReboundListener implements ActionListener
{
public void actionPerformed (ActionEvent event)
{
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
if(powerups >2500)//resets modifiers
{
sloMo = 0;
speedball = 0;
sumo = 0;
superSpeed = 0;
highStakes = 0;
obstruction = 0;
powerups = 0;
powerups++;
}
else
{
powerups++;
}
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
if(((bigBall > 400) && (bigBall < 600)) || ((bigBall >1300) && (bigBall < 1500)) && modifiersON)//makes the ball larger for a period of time.
{
ballSize = 20;
bigBall++;
isBigBall = true;
}
else
{
ballSize = 10;
isBigBall = false;
bigBall++;
}
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
if(((highStakes > 999 && highStakes < 1161) || (highStakes > 2349 && highStakes < 2461)) && modifiersON)//doubles score gained by each player for a limited amount of time
{
countGain = 2;
countGain2 = 2;
highStakes++;
isHighStakes = true;
}
else
{
{
countGain = 1;
countGain2 = 1;
highStakes++;
isHighStakes = false;
}
}
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
if(((sumo > 529 && sumo < 691) || (sumo > 1949 && sumo < 2101)) && modifiersON)// grows both paddles for a limited number of time
{
lengthAI = 100;
lengthYou = 100;
sumo++;
sumoIsTrue = true;
}
else
{
lengthAI = 50;
lengthYou = 50;
sumo++;
sumoIsTrue = false;
}
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
if (((speedball > 329 && speedball < 371) || (speedball > 1749 && speedball < 1801)) && modifiersON)//speeds up ball for limited number of time
{
isSpeedball = true;
x_decay = 7;
y_decay = 7;
speedball++;
}
else
{
isSpeedball = false;
x_decay = 4;
y_decay = 6;
speedball++;
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
if (((sloMo > 149 && sloMo <281) || (sloMo >1499 && sloMo < 1541)) && modifiersON)//slows down opponents paddle for a limited number of time
{
z_decay = 3;
sloMo++;
isSloMo = true;
}
else
{
isSloMo = false;
z_decay = 5;
sloMo++;
}
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
if(((superSpeed >749 && superSpeed < 861) || (superSpeed > 2719 && superSpeed< 2781)) && modifiersON)// makes the AI impossible to beat for a limited amount of time by making it super fast.
{
z_decay = 20;
superSpeed++;
isSuperSpeed = true;
}
else
{
superSpeed++;
isSuperSpeed = false;
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
if (x+ballSize > 276 && x+ballSize < 284)//checks if the ball is at the same x coordinate as the AI paddle
{
isTrue = true;
}
else
{
isTrue = false;
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
if (x < 30 && x > 8)//checks if the ball is at the same x coordinate as the player paddle
{
isTrue2 = true;
}
else
{
isTrue2 = false;
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//controls the motion of the AI bar
if ((z + lengthAI/2) > y)
{
z -= z_decay;
}
else
{
z += z_decay;
}
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//controls the motion of the ball
if(x+ballSize > 300)
{
coloryellow = true;
isFarx = true;
x -= x_decay;
count = count+countGain;
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
else if ((z + lengthAI >= y && z - 10 <= y ) && isTrue) //controls how the ball bounces of if it hits the AI bar
{
isFarx = true;
x -= x_decay;
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
else if ((w + lengthYou >= y && w - 10 <= y ) && isTrue2) //controls how the ball bounces of if it hits the player bar
{
isFarx = false;
x += x_decay;
}
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
else
{
if (isFarx)
{
if(x > 0)
{
x -= x_decay;
coloryellow = false;
}
else
{
isFarx = false;
coloryellow = true;
x += x_decay;
count2 = count2 + countGain2;
}
}
else
{
x += x_decay;
coloryellow = false;
}
}
if(y > (300-ballSize))
{
isFary = true;
y -= y_decay;
}
else
{
if(isFary)
{
if(y > 0)
{
y -= y_decay;
}
else
{
isFary = false;
{
y += y_decay;
}
}
}
else
{
y += y_decay;
}
}
repaint();
}
}
//*****************************************************************
// Represents the listener for keyboard activity.
//*****************************************************************
private class DirectionListener implements KeyListener
{
//--------------------------------------------------------------
// Responds to the user pressing arrow keys by adjusting the
// image and image location accordingly.
//--------------------------------------------------------------
public void keyPressed (KeyEvent event)
{
switch (event.getKeyCode())
{
case KeyEvent.VK_UP:
if(w <= 0)
{
}
else
{
w -= w_decay;
}
break;
case KeyEvent.VK_DOWN:
if(w >= (300 - lengthYou))
{
}
else
{
w += w_decay;
}
break;
}
repaint();
}
//--------------------------------------------------------------
// Provide empty definitions for unused event methods.
//--------------------------------------------------------------
public void keyTyped (KeyEvent event) {}
public void keyReleased (KeyEvent event) {}
}
}
