//File: WallDestroyer.java
//it creates a game which you have court
//and a racket and a ball and blocks
//which you have to clear.
//It has 5 levels.
//
//written by Ferudun Findik, Wednesday, March 20, 2002
import java.applet.*; //imports applet library for various methods
import java.awt.*; //imports various graphics such button
import java.lang.Math; //imports variuos math function such cos
public class WallDestroyer extends Applet implements Runnable{
// class WallDestroyer is extenden applet and implemented runnable
private Thread m_Wall_Destroyer = null;
// a m_Wall_Destroyer Thread object is null, will call by run()
Image offScreen;
// image must be obtained in a platform-specific manner
Graphics offGraphics;
// decleares offGraphics type class Graphics
AudioClip audioHit; //Decleares audioHit as Audioclip
AudioClip audioFall; //Decleares audioFall as Audioclip
AudioClip audioFinish; //Decleares audioFinish as Audioclip
Color color[]; //Declares a color array as Color class
Point ball; //point representing a ball
Point racket; //point representing a racket
int speed = 5; //speed type int set to 5 unit
int mx = (int)( speed * Math.cos(radian(45.0)));
// sets the target mx (x coordinates)
int my = (int)(-speed * Math.sin(radian(45.0)));
// sets the target my (y coordinates)
int score = 0; // declares a score and sets to 0
int incrementScore = 1; // declares the increment of the score
int restLive = 2; // declares the rest live
int Level = 0; // sets level init 0
int Level_loop = 0; // sets the loop level
boolean clear; // sets a bolean clear
boolean block[][]; // sets 2 dimensional block array type Bool
TextField textLevel; // declares textLevel as TextField
TextField textPoints; // declares textPoints as TextField
TextField textLives; // declares textLives as TextField
Choice choice; // a pop-up menu of choices
Button start_button; // declares a starts_button as Button
public void init(){ //initializing
setLayout(new BorderLayout());
// Sets the layout manager BorderLayout for this container
Panel p=new Panel();
// sets the panel p
textLevel=new TextField("push start!!", 8);
// sets textLevel "push start!!" with 8 column
textLevel.setBackground(Color.white);
// sets textLevel to color white
textPoints=new TextField(Integer.toString(score), 4);
// sets textPoints to display the score
textPoints.setBackground(Color.white);
textLives=new TextField(Integer.toString(restLive), 2);
// sets textLives to dosplay the restLive
textLives.setBackground(Color.white);
p.add(textLevel);
// adds textLevel to panel p
p.add(textPoints);
// adds textPoints to panel p
p.add(textLives);
// adds textLives to panel p
choice = new Choice();
// choice is class Choice
choice.setBackground(Color.cyan);
// choice backgroundcolor to cyan
choice.addItem("easy"); // adds "easy" to choice
choice.addItem("normal"); // adds "normal" to choice
choice.addItem("hard"); // adds "hard" to choice
p.add(choice); //adds choice to panel p
start_button = new Button("Start");
// start_button is class Button and is set "Start"
start_button.setBackground(Color.gray);
p.add(start_button);
add("South",p); //adds panel p
resize(300,350); //resizes to 300 to 350
setBackground(Color.black); // sets background to black
audioHit = getAudioClip(getDocumentBase(), "hit.au");
// sets "hit.au" as audioHit
audioFall = getAudioClip(getDocumentBase(), "fall.au");
// sets "fall.au" as audioFall
audioFinish = getAudioClip(getDocumentBase(), "finish.au");
// sets "finish.au" as audioFinish
Dimension d=size();
// d as Class Dimension size
offScreen=createImage(d.width,d.height);
// offScreen assigned as size d's width and height
offGraphics=offScreen.getGraphics();
// Creates graphics context for drawing to an offscreen image
block = new boolean[10][6]; //creates a 2D block array(bool)
color = new Color[6]; //creates a color array
color[0] = Color.red; //first element is red
color[1] = Color.blue; //second element is blue
color[2] = Color.yellow; //third element is yellow
color[3] = Color.green; //fourth element is green
color[4] = Color.cyan; //fifth element is cyan
color[5] = Color.pink; //sixth element is pink
Level_set(); // calls Level_sets function
}
public void Level_set(){
// sets each levels begining
ball = new Point(145, 288);
// sets the pall position to 145 to 288
racket = new Point(135, 305);
// sets the racket position to 135 to 305
mx = (int) ( speed * Math.cos(radian(45.0)));
// sets the destination of ball x coordinate
my = (int) (-speed * Math.sin(radian(45.0)));
// sets the destination of ball y coordinate
// sets each level for blocks
for(int i = 0; i < 6; i++)
{
for(int j = 0; j < 10; j++)
{
block[j][i] = true;
}
}// first level is all blocks
switch (Level_loop)
{
case 0 : break;
case 1 :
{
for (int i = 0; i < 6; i++)
{
for (int j = 0; j < 10; j += 3)
{
block[j][i] = false;
}
}
break;
}// second level each 3rd column is free
case 2 :
{
for (int i = 0; i < 6; i += 2)
{
for (int j = 0; j < 10; j += 3)
{
block[j][i] = false;
}
}
break;
}// third level
case 3 :
{
for (int i = 0; i < 6; i += 2)
{
for (int j = 0; j < 10; j += 4)
{
block[j][i] = false;
}
}
break;
}// fourth level
case 4 :
{
for (int i = 0; i < 6; i += 2)
{
for (int j = 0; j < 10; j += 2)
{
block[j][i] = false;
}
}
break;
}// fifth level
}
} // end of functtion set level
public void destroy(){// required through the class library
}
public void stop(){
// required through the class library
if (m_Wall_Destroyer != null)
{
m_Wall_Destroyer.stop();
m_Wall_Destroyer = null;
}
}
public void paint(Graphics g){
// paints the graphics
Dimension d=size();
offGraphics.setColor(getBackground());
offGraphics.fillRect(0, 0, d.width, d.height);
//shows the blocks with different color for each coloumn
for (int i = 0; i < 6; i++)
{
offGraphics.setColor(color[i]);
// set i th colomun to i th color
for (int j = 0; j < 10; j++)
{
if (block[j][i])
// block of [j][i] is true
offGraphics.fillRect((j*30)+1,(i*16)+30, 28, 8);
// paint a rectangle 28 times 8 pixel
}
}
offGraphics.setColor(Color.magenta);
offGraphics.fillOval(ball.x, ball.y, 8, 8);
//paint ball in the defined point color magenta
offGraphics.setColor(Color.blue);
offGraphics.fillRect(racket.x, racket.y, 35, 6);
// paint racket in the defined point color blue
g.drawImage(offScreen, 0, 0, null);
// draw the g(whole)
}
public void update(Graphics g){
// update with paint
paint(g);
}
public void run(){ // run function
audioHit.play();
audioHit.stop();
audioFall.play();
audioFall.stop();
audioFinish.play();
audioFinish.stop();
// to load the audio files
while(true)
{
move();
//call the move function
repaint();
//call the repaint function
if (ball.y > 330)
{// if the ball out field's bottom
if(restLive == 0)
{// if the restLive is 0
textLevel.setText("Game over!");
// set textLevel "Game over!"
audioFall.play();
// paly audioFall
break;
}
else
{// else
restLive--;
// decrease restlive by one
textLevel.setText("miss!!");
//write "miss!!" on textLevel
textLives.setText(Integer.toString(restLive));
//write the restlive on textLives
audioFall.play();
// play audioFall
ball.y = 300;
//put the ball on y 300
mx = (int)( speed * Math.cos(radian(45.0)));
my = (int)(-speed * Math.sin(radian(45.0)));
try
{
Thread.sleep(1000);
}// wait one sec
catch(InterruptedException e){}
textLevel.setText("click mouse");
// write "click mouse" on textLevel
m_Wall_Destroyer.suspend();
// suspend the thread
}
}
textPoints.setText(Integer.toString(score));
//
if (clear)
{//if clear is true
textLevel.setText(Level + "Level clear!");
// "Level clear" textLevel
audioFinish.play();
//play audioFinish
if (Level % 2 == 0) speed++;
//even numbered level the increase the speed by one
if (speed > 15) speed = 15;
// speed is bigger the 15 the set the speed to 15
Level++; //increase the level by one
Level_loop++; //increase the level_loop by one
if (Level_loop == 5) Level_loop = 0;
// leveel_loop is 5 then level_loop is 0
if (restLive < 5) restLive++;
// restLive is smaller the 5 then increase it
Level_set(); //set the level
textLives.setText(Integer.toString(restLive));
try
{
Thread.sleep(1000);
}
catch (InterruptedException e){}
textLevel.setText("click mouse");
m_Wall_Destroyer.suspend();
}
clear = false;
//set the clear to false
try
{
Thread.sleep(20);
}
catch (InterruptedException e){}
}
m_Wall_Destroyer = null;
}
public void move(){// fuction to move
if (ball.x>racket.x - 8 &&
ball.x racket.y - 8 &&
ball.y < racket.y + 6)
{// if the balls hits the racket
int tempx = ball.x + 4;
if (tempx < racket.x + 5)
{
mx = (int)(-speed * Math.cos(radian(30.0)));
my = (int)(-speed * Math.sin(radian(30.0)));
}// set destination to 30 degree
else if (tempx < racket.x + 10)
{// if it 10 units right
mx = (int)(-speed * Math.cos(radian(45.0)));
my = (int)(-speed * Math.sin(radian(45.0)));
}// then 45 degree
else if (tempx < racket.x + 15)
{// if it 15 right
mx = (int)(-speed * Math.cos(radian(30.0)));
my = (int)(-speed * Math.sin(radian(30.0)));
}//then 30 degree
else if (tempx < racket.x + 20)
{// if in teh middle
mx = (int)(-speed * Math.cos(radian(90.0)));
my = (int)(-speed * Math.sin(radian(90.0)));
}// straigth back
else if (tempx < racket.x + 25)
{
mx = (int)( speed * Math.cos(radian(60.0)));
my = (int)(-speed * Math.sin(radian(60.0)));
}// 60 degrees
else if (tempx < racket.x + 30)
{
mx = (int)( speed * Math.cos(radian(45.0)));
my = (int)(-speed * Math.sin(radian(45.0)));
}// 45 degrees
else
{
mx = (int)( speed * Math.cos(radian(30.0)));
my = (int)(-speed * Math.sin(radian(30.0)));
}// else 30 degrees
audioHit.play(); // play the audioHit
}//
ball.translate(mx, my);
//move the ball to the mx, my coordinates
if (ball.x < 0)
{// if the ball hits the right wall
ball.x = 0;
mx = -mx;
audioHit.play();
}
if (ball.x > 300)
{// if the ball hits the left wall
ball.x = 300;
mx = -mx;
audioHit.play();
}
if (ball.y < 0)
{// if the ball hits the upper wall
ball.y = 0;
my = -my;
audioHit.play();
}
clear = true;
for (int i = 0; i < 6; i++)
{
for (int j = 0; j < 10; j++)
{
if (block[j][i] &&
ball.x > (j*30)-3 &&
ball.x < ((j+1)*30)-5 &&
ball.y > (i*16)+21 &&
ball.y < ((i+1)*16)+23)
{// if the ball hits one of the bloacks
my = -my;
block[j][i] = false;
// set the hitted block false
score += incrementScore + Level;
// score is score plus incrementScore plus Level
audioHit.play();
}
if (block[j][i]) clear = false;
}
}
}//end of function move
public boolean mouseMove(Event e,int xx,int yy){
// mouseMove function
racket.x = xx; //racket's x coordinates are same as mouse
racket.y = yy; //racket's y coordinates are same as mouse
if (racket.x < -20) racket.x = -20; // racket's west border is -20
if (racket.x > 280) racket.x = 280; // racket's east border is 280
if (racket.y < 200) racket.y = 200; // racket's north border is 200
if (racket.y > 305) racket.y = 305; // racket's south border is 305
repaint(); //repaint function is called during mouseMove
return true; // mouse is moving
}// END OF MOUSEMOVE function
public boolean mouseDown(Event e, int x, int y){
// mouse is clicked on the object
m_Wall_Destroyer.resume(); // resume the thread
textLevel.setText("Level" + Level);
return true;
}
public boolean action(Event e,Object o){
// if an action appears
if (e.target instanceof Button)
{
if ("Start".equals(o))
{// if is the beginning
if (m_Wall_Destroyer == null)
{// if the thread is equal to null
score = 0; //set score to 0
Level = 0; //set Level to 0
Level_loop = 0; //set Level_loop to 0
restLive = 2; //restlive to 2
textLevel.setText("Level 0");
Level_set(); //call Level_set
m_Wall_Destroyer = new Thread(this);
//m_Wall_Destroyer is a new Thread
m_Wall_Destroyer.start();//start thread
}
}
return true;
}
if (e.target instanceof Choice)
{// if the cohoice is in action
if (m_Wall_Destroyer == null)
{// if the thread is null
if ("easy".equals((String)o))
{// if it is choosen 'easy'
incrementScore = 1; //incrementScore is 1
speed = 5; //speed is 5
}
if ("normal".equals((String)o))
{// if 'normal'
incrementScore = 3; //incrementScore is 3
speed = 7; //speed is 7
}
if ("hard".equals((String)o))
{// if 'hard'
incrementScore = 5; //incrementScore is 5
speed = 10; //speed is 10
}
return true;
}
}
return false;
}//end of action function
//
private double radian(double degree){
//calculates degree to radian
return (degree * 3.14159 / 180.0);
}
}
(
geocities.com/ferudun)