package eight.queen.algorithm;
public class Queen {
private int N = 8;
private int chess[][];
public Queen(){
chess = new int[N][N];
System.out.println(N+" sizes chess table contain "+NQueen(0)+"\n");
}
public int NQueen(int currentRow){
if(currentRow==N)
return 1;
int totalQueenSetting = 0;
for(int i = 0;i<N;i++){
if(chess[currentRow][i]==0){
chess[currentRow][i] = 1+currentRow;
setConsumedSquares(currentRow,i);
totalQueenSetting += NQueen(currentRow+1);
for(int k = 0; k<N;k++)
for(int j = 0;j<N;j++)
if(chess[k][j]==8){
print();
System.out.println("\t");
break;
}
chess[currentRow][i] = 0;
recover(currentRow);
}
}
return totalQueenSetting;
}
public void setConsumedSquares(int row,int i){
for(int j = row+1;j<N;j++){
if(chess[j][i]==0)
chess[j][i] = (1+row);
if(i-(j-row)>=0 && chess[j][i-(j-row)] == 0)
chess[j][i-(j-row)] = (1+row);
if(i+(j-row) < N && chess[j][i+(j-row)] == 0)
chess[j][i+(j-row)] = (1+row);
}
}
public void recover(int row){
for(int i = row;i<N;i++)
for(int j = 0;j<N;j++)
if(chess[i][j]==(1+row))
chess[i][j] = 0;
}
public void print(){
for(int i = 0; i<N;i++)
for(int j = 0;j<N;j++){
System.out.print(chess[i][j]+" ");
if(j == N-1)
System.out.println("\t");
}
}
public static void main(String[] args){
Queen test = new Queen();
}
}
Showing posts with label Java. Show all posts
Showing posts with label Java. Show all posts
Monday, 15 October 2012
N Queen Algorithm
insertion sorting
public class insertionSorting {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
insertionSorting test = new insertionSorting();
}
public insertionSorting(){
int array[] = {2,5,1,9,12,3,6,7,11,11,11,8,21,17,45,46,33,22};
sorting(array);
print(array);
}
public void sorting(int[] buffer){
int key,i;
for(int j = 1;j<buffer.length;j++)
{
key = buffer[j];
i = j-1;
while((i>=0) && buffer[i] > key){
buffer[i+1] = buffer[i];
i = i-1;
}
buffer[i+1] = key;
}
}
public void print(int[] buffer){
for(int i = 0;i<buffer.length;i++)
System.out.print(buffer[i]+", ");
}
}
Merge Sorting
public class mergeSort {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
mergeSort test = new mergeSort();
}
private int[] array;
private int N;
public mergeSort(){
N = 10;
array = new int[N];
for(int i=0;i<array.length;i++)
array[i] = (int)(Math.random()*10)+1;
print(array);
sort(array,0,N-1);
print(array);
}
public void print(int []array){
for(int i = 0;i<array.length;i++)
System.out.print(array[i]+", ");
System.out.println("");
}
public void sort(int []array,int p,int r){
if(r-p>=1)
{
int q = (int)(Math.floor((double)((p+r)/2)));
sort(array,p,q);
sort(array,q+1,r);
merge(array,p,q,r);
}
}
public void merge(int []array,int p,int q,int r){
int n1 = q-p+1;
int n2 = r-q;
int left[] = new int[n1+1];
int right[] = new int[n2+1];
for(int i = 0;i<left.length-1;i++)
left[i] = array[p+i];
for(int i=0;i<right.length-1;i++)
right[i] = array[q+i+1];
left[n1] = 11;
right[n2] = 11;
int i = 0;
int j = 0;
for(int k = p;k<=r;k++){
if(left[i]<=right[j]){
array[k] = left[i];
i++;
}else{
array[k] = right[j];
j++;
}
}
}
}
Saturday, 11 August 2012
ActionListener Example
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.text.DecimalFormat;
import java.util.ArrayList;
public class makine extends JApplet{
private int counter = 0;
private ArrayList<String> liste;
private String[] yazi;
private JButton one,two,three,four,five,
six,seven,eight,nine,zero,
arti,eksi,bolu,carpi,CE,esit;
private JTextField ekran;
private JLabel yazar;
private DecimalFormat dec;
public String ToString(Double d)
{
return d.toString();
}
//@override
public void init()
{
yazi = new String[11];
liste = new ArrayList<String>();
for(int i = 0;i<11;i++){
yazi[i] = "";
}
ActionHandler handler = new ActionHandler();
Container container = this.getContentPane();
container.setLayout(new FlowLayout(1,8,2));
dec = new DecimalFormat("0.000");
one = new JButton();
one.setText("1");
one.setSize(20, 20);
one.setLocation(40, 40);
container.add(one);
one.addActionListener(handler);
two = new JButton();
two.setText("2");
two.setSize(20, 20);
two.setLocation(40, 40);
container.add(two);
two.addActionListener(handler);
three = new JButton();
three.setText("3");
three.setSize(20, 20);
three.setLocation(70, 40);
container.add(three);
three.addActionListener(handler);
arti = new JButton();
arti.setText("+");
arti.setSize(20, 20);
arti.setLocation(100, 40);
container.add(arti);
arti.addActionListener(handler);
four = new JButton();
four.setText("4");
four.setSize(20, 20);
four.setLocation(10, 70);
container.add(four);
four.addActionListener(handler);
five = new JButton();
five.setText("5");
five.setSize(20, 20);
five.setLocation(40, 70);
container.add(five);
five.addActionListener(handler);
six = new JButton();
six.setText("6");
six.setSize(20, 20);
six.setLocation(70, 70);
container.add(six);
six.addActionListener(handler);
eksi = new JButton();
eksi.setText("-");
eksi.setSize(20, 20);
eksi.setLocation(10, 70);
container.add(eksi);
eksi.addActionListener(handler);
seven = new JButton();
seven.setText("7");
seven.setSize(20, 20);
seven.setLocation(10, 100);
container.add(seven);
seven.addActionListener(handler);
eight = new JButton();
eight.setText("8");
eight.setSize(20, 20);
eight.setLocation(40, 100);
container.add(eight);
eight.addActionListener(handler);
nine = new JButton();
nine.setText("9");
nine.setSize(20, 20);
nine.setLocation(70, 100);
container.add(nine);
nine.addActionListener(handler);
carpi = new JButton();
carpi.setText("x");
carpi.setSize(20, 20);
carpi.setLocation(100, 130);
container.add(carpi);
carpi.addActionListener(handler);
CE = new JButton();
CE.setText("CE");
CE.setSize(20, 20);
CE.setLocation(10, 100);
container.add(CE);
CE.addActionListener(handler);
zero = new JButton();
zero.setText("0");
zero.setSize(20, 20);
zero.setLocation(40, 130);
container.add(zero);
zero.addActionListener(handler);
bolu = new JButton();
bolu.setText("/");
bolu.setSize(20, 20);
bolu.setLocation(100, 100);
container.add(bolu);
bolu.addActionListener(handler);
esit = new JButton();
esit.setText("=");
esit.setSize(20, 20);
esit.setLocation(70, 100);
container.add(esit);
esit.addActionListener(handler);
ekran = new JTextField(15);
ekran.setText(" ");
ekran.setEditable(false);
ekran.setDisabledTextColor(Color.BLUE );
ekran.setVisible(true);
ekran.setAlignmentY(JTextField.RIGHT_ALIGNMENT);
ekran.setHorizontalAlignment(JTextField.RIGHT);
ekran.setLocation(10,10);
container.add(ekran);
ekran.addActionListener(handler);
yazar = new JLabel("Tested and Programmed by BY");
container.add(yazar);
}
//inner class
private class ActionHandler implements ActionListener
{
public void actionPerformed(ActionEvent event)
{
if(event.getSource() == one){
if(counter<11){
yazi[counter]+="1";
ekran.setText(yazi[counter]);
}else ;
}if(event.getSource() == two){
if(counter<11){
yazi[counter]+="2";
ekran.setText(yazi[counter]);
}else ;
}if(event.getSource() == three){
if(counter<11){
yazi[counter]+="3";
ekran.setText(yazi[counter]);
}else;
}if(event.getSource() == four){
if(counter<11){
yazi[counter]+= "4";
ekran.setText(yazi[counter]);
}else;
}if(event.getSource() == five){
if(counter<11){
yazi[counter] += "5";
ekran.setText(yazi[counter]);
}else;
}if(event.getSource() == six){
if(counter<11){
yazi[counter] += "6";
ekran.setText(yazi[counter]);
}else;
}if(event.getSource() == seven){
if(counter<11){
yazi[counter] += "7";
ekran.setText(yazi[counter]);
}else;
}if(event.getSource() == eight){
if(counter<11){
yazi[counter] += "8";
ekran.setText(yazi[counter]);
}else;
}if(event.getSource() == nine){
if(counter<11){
yazi[counter] += "9";
ekran.setText(yazi[counter]);
}else;
}if(event.getSource() == zero){
if(counter<11){
yazi[counter] += "0";
ekran.setText(yazi[counter]);
}else;
}if(event.getSource() == arti){
try{
if(Double.parseDouble(yazi[counter])>=0){
counter++;
yazi[counter] = "+";
counter++;
}else;
}catch(Exception e){
ekran.setText("Syntax Error");
}
}if(event.getSource() == eksi){
try{
if(Double.parseDouble(yazi[counter])>=0){
counter++;
yazi[counter] = "-";
counter++;
}else;
}catch(Exception e){
ekran.setText("Syntax Error");
}
}if(event.getSource() == bolu){
try{
if(Double.parseDouble(yazi[counter])>=0){
counter++;
yazi[counter] = "/";
counter++;
}else;
}catch(Exception e){
ekran.setText("Syntax Error");
}
}if(event.getSource() == carpi){
try{
if(Double.parseDouble(yazi[counter])>=0){
counter++;
yazi[counter] = "*";
counter++;
}
}catch(Exception e){
ekran.setText("Syntax Error");
}
}if(event.getSource() == CE){
for(int i = 0;i<11;i++)
yazi[i] = "";
ekran.setText("");
counter = 0;
}if(event.getSource() == esit){
//try{
for(int i = 0;i<11;i++){
liste.add(i,yazi[i]);
}
for(int i = 0;i<11;i++){
try{
if(yazi[i]=="/"){
yazi[i] = ToString(Double.parseDouble(yazi[i-1])/Double.parseDouble(yazi[i+1]));
yazi[i-1] = yazi[i];
yazi[i+1] = yazi[i];
liste.remove(0);
liste.add(0,yazi[i]);
}
}catch(Exception e){
ekran.setText("Syntax Error");
counter = 0;
}
}
for(int i = 0;i<11;i++){
try{
if(yazi[i]=="*"){
yazi[i] = ToString(Double.parseDouble(yazi[i-1])*Double.parseDouble(yazi[i+1]));
yazi[i-1] = yazi[i];
yazi[i+1] = yazi[i];
liste.remove(0);
liste.add(0,yazi[i]);
}
}
catch(Exception e){
ekran.setText("Syntax Error");
counter = 0;
}
}
for(int i = 0;i<11;i++){
try{
if(yazi[i]=="+"){
yazi[i] = ToString(Double.parseDouble(yazi[i-1])+Double.parseDouble(yazi[i+1]));
yazi[i-1] = yazi[i];
yazi[i+1] = yazi[i];
liste.remove(0);
liste.add(0,yazi[i]);
}
}
catch(Exception e){
ekran.setText("Syntax Error");
counter = 0;
}
}
for(int i = 0;i<11;i++){
try{
if(yazi[i]=="-"){
yazi[i] = ToString(Double.parseDouble(yazi[i-1])-Double.parseDouble(yazi[i+1]));
yazi[i-1] = yazi[i];
yazi[i+1] = yazi[i];
liste.remove(0);
liste.add(0,yazi[i]);
}
}
catch(Exception e){
ekran.setText("Syntax Error");
counter = 0;
}
}
if(liste.isEmpty()){
ekran.setText("Syntax Error");
counter = 0;}
else{
if(liste.get(0)!="")
ekran.setText(liste.get(0).toString());
}
counter = 0;
for(int i = 0;i<11;i++)
yazi[i] = "";
if(!liste.isEmpty())
liste.clear();
/*}catch(Exception e){
ekran.setText("Syntax Error");
}*/
}
}
}
}
Saturday, 9 June 2012
PingPong Game in Java
Board.java
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.ImageIcon;
import javax.swing.JPanel;
import javax.swing.Timer;
public class Board extends JPanel implements ActionListener{
private final int width = 600;
private final int height = 600;
private int delay = 30;//time delay to update
private int board_x;//board x location
private int board_y;//board y location
private int ball_x;//ball x location
private int ball_y;//ball y location
private float ball_xv;//ball x violation
private float ball_yv;//ball y violation
//conditions
private boolean running = true;
private boolean contin= true;
private boolean tryagain = false;
//for keyboard
private boolean pause = false;
private boolean left = false;
private boolean right = false;
//for mouse motions
private boolean dragged = false;
private int howfarx = 0; //how far mouse click x coordinate from object's x coordinate
private Image ball;
private Image board;
private Timer timer;
private Image background;
private String msg = "presss";
public Board()
{
addKeyListener(new TAdapter());
addMouseMotionListener(new MAdapter());
addMouseListener(new MAdapter());
setBackground(Color.white);
load();
setFocusable(true);
init();
}
public void load()
{
board = new ImageIcon("C:\\javapics\\board.png").getImage();
ball = new ImageIcon("C:\\javapics\\ae.png").getImage();
background = new ImageIcon("C:\\javapics\\backgroud.png").getImage();
}
public void actionPerformed(ActionEvent e) {
if(running)
{
if(contin)
{
ballmoving();
boardmove();
lose();
}
}
repaint();
}
public void start()
{
ball_xv = -0.4f;
ball_yv = -0.3f;
board_x = 240;
board_y = 580;
ball_x = 300;
ball_y = 240;
}
public void init()
{
start();
timer = new Timer(delay,this);
timer.start();
}
public void paint(Graphics g)
{
super.paint(g);
if(contin)
{
g.drawImage(ball, ball_x, ball_y,this);
g.drawImage(board, board_x, board_y,this);
Toolkit.getDefaultToolkit().sync();
g.dispose();
}
if(tryagain)
{
String msg2 = "Press Enter to try again";
Font small = new Font("Arial", Font.BOLD, 15);
g.setColor(Color.black);
g.setFont(small);
g.drawString(msg2,200,300);
}
if(pause)
{
String msg2 = "Pause! Press Space to continue";
Font small = new Font("Helvetica", Font.BOLD, 15);
g.setColor(Color.black);
g.setFont(small);
g.drawString(msg2,200,300);
}
if(!running)
{
g.drawImage(background, 0, 0,this);
}
}
public void lose()
{
if(ball_y + 20 > height)
{
contin = false;
tryagain = true;
}
}
public void ballmoving()
{
if(ball_x < 1)
ball_xv = Math.abs(ball_xv);
else if((ball_x + 20) > (width-21))
ball_xv = -Math.abs(ball_xv);
if(ball_y < 1)
ball_yv = Math.abs(ball_yv);
else if((ball_y+20) > (height-21))
if(ball_x >= board_x && ball_x <= (board_x+100) )
ball_yv = -Math.abs(ball_yv);
update(delay);
}
public void update(int timedelay)//to update ball location on the screen
{
ball_x = (ball_x + (int)(ball_xv*delay));
ball_y = (ball_y + (int)(ball_yv*delay));
}
public void boardmove()//to play with keyboard
{
if(left){
board_x -= 40;
left = false;
}
if(right){
board_x += 40;
right = false;
}
}
private class MAdapter extends MouseAdapter
{
public void mousePressed(MouseEvent e)
{
int mousex = e.getX();
int mousey = e.getY();
if(mousex >= board_x && mousex <= (board_x+ 100))
if(mousey >= board_y && mousey <= (board_y+100)){
dragged = true;
howfarx = mousex - board_x;
}else {
dragged = false;
}
}
public void mouseDragged(MouseEvent e)
{
if(dragged){
board_x = e.getX() - howfarx;
board_x = Math.max(0, board_x);//to prevent overflow from sides
board_x = Math.min(board_x, (width-120));/////////////////////
}
}
public void mouseExited(MouseEvent e)
{
dragged = false;
howfarx = 0;
}
public void mouseMoved (MouseEvent e) {} // ignore these events
public void mouseEntered (MouseEvent e) {} // ignore these events
public void mouseClicked (MouseEvent e) {} // ignore these events
public void mouseReleased(MouseEvent e) {} // ignore these events
}
private class TAdapter extends KeyAdapter
{
public void keyPressed(KeyEvent e)
{
int key = e.getKeyCode();
if(key == KeyEvent.VK_Z)
{
msg = "pressed z";
if((board_x - 40) >= 0)//to prevent overflow from left side from
left = true;
else
left = false;//nothing
}
if(key == KeyEvent.VK_X)
{
msg = "pressed x";
if((board_x + 150) <= width)//to prevent overflow form right side of game area
right = true;
else
right = false;//nothing
}
if(key == KeyEvent.VK_ENTER){
start();
contin = true;
tryagain = false;
pause = false;
}
if(key == KeyEvent.VK_SPACE){
if(!pause){
contin = false;
pause = true;
tryagain = false;
}else{
contin = true;
pause = false;
tryagain = false;
}
}
if(key == KeyEvent.VK_ESCAPE){
running = false;
contin = false;
pause = false;
tryagain = false;
}
}
}
}
import javax.swing.*;
public class pinpong extends JApplet {
/**
* @param args
*/
public pinpong()
{
this.setContentPane(new Board());
}
public static void main(String[] args) {
// TODO Auto-generated method stub
JFrame window = new JFrame();
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
window.setSize(586, 630);
window.setLocationRelativeTo(null);
window.setTitle("pinpong");
window.setContentPane(new Board());
window.setResizable(false);
window.setVisible(true);
}
}
Friday, 27 April 2012
Dragging image in java
Draging Image dragme.java
import javax.swing.JFrame;
public class dragme extends JFrame{
public dragme(){
add(new dragged());
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(600, 600);
setLocationRelativeTo(null);
setTitle("Dragging App");
setResizable(false);
setVisible(true);
}
public static void main(String[] args){
new dragme();
}
}
Dragged Image Class dragged.java
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.*;
import javax.swing.*;
public class dragged extends JPanel implements MouseMotionListener, MouseListener {
private Image Dragged;
private Image background;
private static int x_coord = 150;
private static int y_coord = 150;
private boolean isdragged;
private static int x_dragFrom = 0;
private static int y_dragFrom = 0;
public dragged(){
setPreferredSize(new Dimension(300,300));
setBackground(Color.WHITE);
this.addMouseMotionListener(this);
this.addMouseListener(this);
LoadImage();
}
public void LoadImage(){
Dragged = new ImageIcon("C:\\javapics\\deneme.png").getImage();
background = new ImageIcon("C:\\javapics\\daaad.png").getImage();
}
public void paintComponent(Graphics g){
super.paintComponent(g);
g.drawImage(background, 0, 0, null);
g.drawImage(Dragged, x_coord, y_coord, this);
}
public void mousePressed(MouseEvent e) {
int x = e.getX(); // Save the x coord of the click
int y = e.getY(); // Save the y coord of the click
if (x >= x_coord && x <= (x_coord + Dragged.getWidth(null))
&& y >= y_coord && y <= (y_coord + Dragged.getWidth(null))) {
isdragged = true;
x_dragFrom = x - x_coord; // how far from left
y_dragFrom = y - y_coord; // how far from top
} else {
isdragged = false;
}
}
public void mouseDragged(MouseEvent e) {
if (isdragged) {
x_coord = e.getX() - x_dragFrom;//to better dragging view
y_coord = e.getY() - y_dragFrom;//to better dragging view
//to prevent overflow left and right side
x_coord = Math.max(x_coord , 0);
x_coord = Math.min(x_coord , getWidth() - Dragged.getWidth(null));
//to prevent overflow up and down side
y_coord = Math.max(y_coord , 0);
y_coord = Math.min(y_coord , getHeight() - Dragged.getHeight(null));
this.repaint(); // Repaint because position changed.
}
}
//we should change isdragged variable when mouse released for dragging
public void mouseExited(MouseEvent e) {
isdragged = false;
}
public void mouseMoved (MouseEvent e) {} // ignore these events
public void mouseEntered (MouseEvent e) {} // ignore these events
public void mouseClicked (MouseEvent e) {} // ignore these events
public void mouseReleased(MouseEvent e) {} // ignore these events
}
Wednesday, 18 April 2012
Snake Game in Java
screen.java is using for fullscreen game develpment
import java.awt.*;
import java.awt.image.BufferStrategy;
import java.awt.image.BufferedImage;
//import java.lang.reflect.InvocationTargetException;
import javax.swing.JFrame;
public class screen {
private GraphicsDevice vc;
//give vc access to monitor screen
//Constructor
public screen(){
GraphicsEnvironment e = GraphicsEnvironment.getLocalGraphicsEnvironment();
vc = e.getDefaultScreenDevice();
}
//get all compatible DM
public DisplayMode[] getCompatibleDisplayModes(){
return vc.getDisplayModes();
}
//compares DM passed in to vc DM and see if they matchs
public DisplayMode findFirstCompatibleMode(DisplayMode modes[]){
DisplayMode goodModes[] = vc.getDisplayModes();
for(int x=0;x<modes.length;x++){
for(int y=0;y<goodModes.length;y++){
if(displayModesMatch(modes[x],goodModes[y])){
return modes[x];
}
}
}
return null;
}
//get current DM
public DisplayMode getCurrentDisplayMode(){
return vc.getDisplayMode();
}
//check if two modes match each other
public boolean displayModesMatch(DisplayMode m1,DisplayMode m2){
if(m1.getWidth() != m2.getWidth() || m1.getHeight() != m2.getHeight())
return false;
if(m1.getBitDepth() != DisplayMode.BIT_DEPTH_MULTI && m2.getBitDepth() != DisplayMode.BIT_DEPTH_MULTI && m1.getBitDepth() != m2.getBitDepth())
return false;
if(m1.getRefreshRate() != DisplayMode.REFRESH_RATE_UNKNOWN && m2.getRefreshRate() != DisplayMode.REFRESH_RATE_UNKNOWN && m1.getRefreshRate() != m2.getRefreshRate())
return false;
return true;
}
//make frame full screen
public void setFullScreen(DisplayMode dm){
JFrame f = new JFrame();
f.setUndecorated(true);
f.setIgnoreRepaint(true);
f.setResizable(false);
vc.setFullScreenWindow(f);
if(dm != null && vc.isDisplayChangeSupported()){
try{
vc.setDisplayMode(dm);
}catch(Exception ex){}
}
f.createBufferStrategy(2);
}
//we will set graphics object equal to this
public Graphics2D getGraphics(){
Window w = vc.getFullScreenWindow();
if(w != null){
BufferStrategy s = w.getBufferStrategy();
return (Graphics2D)s.getDrawGraphics();
}else{
return null;
}
}
//update display
public void update(){
Window w =vc.getFullScreenWindow();
if(w != null){
BufferStrategy s = w.getBufferStrategy();
if(!s.contentsLost()){
s.show();
}
}
}
//return full screen window
public Window getFullScreenWindow(){
return vc.getFullScreenWindow();
}
//get witdh of window
public int getWidth(){
Window w = vc.getFullScreenWindow();
if(w != null)
return w.getWidth();
else
return 0;
}
//get height of window
public int getHeight(){
Window w = vc.getFullScreenWindow();
if(w != null)
return w.getHeight();
else
return 0;
}
// get out of fullscreen
public void restoreScreen(){
Window w = vc.getFullScreenWindow();
if(w != null)
w.dispose();
vc.setFullScreenWindow(null);
}
//create image compatible with monitor
public BufferedImage createCompatibleImage(int w,int h,int t){
Window win =vc.getFullScreenWindow();
if(win != null){
GraphicsConfiguration gc = win.getGraphicsConfiguration();
return gc.createCompatibleImage(w,h,t);
}
return null;
}
}
Snake Game in Java
public class variables {
//directions/yönler
protected static final int kuzey = 1;
protected static final int guney = 2;
protected static final int bati = 3;
protected static final int dogu = 4;
//direction
protected int yon = kuzey;
//next direction
protected int sonrakiyon = kuzey;
protected long movedelay = 100; //millisecond to go or (X/V) Road/Velocity //ilerleme hızı
protected long lastmove = 0;//time for next step
//game status
protected boolean becontinue = true; // game is continuing //oyun devam ediyor
protected boolean pause = false; //game is paused //oyun durduruldu
protected boolean lost = false;//kaybettin
protected boolean continued= false;
//eat seed
protected static boolean growup = false;
protected String mess = "Score = ";
protected String mess2 = "Press ESC to Exit ";
protected String mess3 = "Number of dead = ";
protected String mess4 = "Pause";
protected String mess5 = "You LOSE";
protected String mess6 = "Try Again-Press Enter or Exit";
protected static int score = 0;
protected static int dead = 0;
protected static int index ;
}
Snake Game in Java
engerekcore.java is need to run game
import java.awt.*;
//import javax.swing.*;
public abstract class engerekcore extends engerek{
//ekran modları
private static DisplayMode modes[] = {
new DisplayMode(800,600,32,0),
new DisplayMode(800,600,24,0),
new DisplayMode(800,600,16,0),
new DisplayMode(640,480,32,0),
new DisplayMode(640,480,24,0),
new DisplayMode(640,480,16,0),
};
private boolean running;
protected screen s;
//stop method
public void stop(){
running = false;
}
//call init and gameloop
public void run(){
try{
init();
start();
gameLoop();
}finally{
s.restoreScreen();
}
}
//set to full screen
public void init(){
s = new screen();
DisplayMode dm = s.findFirstCompatibleMode(modes);
s.setFullScreen(dm);
Window w = s.getFullScreenWindow();
w.setFont(new Font("Arial",Font.PLAIN,20));
w.setBackground(Color.white);
w.setForeground(Color.black);
running = true;
}
//main gameLoop
public void gameLoop(){
long startTime = System.currentTimeMillis();
long cumTime = startTime;
while(running){
Graphics2D g = s.getGraphics();
long timePassed = System.currentTimeMillis() - cumTime;
cumTime += timePassed;
if(pause==false){
if(lost!=false){
try{
draw2(g);
g.dispose();
if(continued){
collision();
s.update();
continued = false;
continue;
}
}catch(Exception ex){}
}else
update(timePassed);
draw(g);
g.dispose();
s.update();
}else{
try{
draw3(g);
g.dispose();
s.update();
if(becontinue){
continue;
}
}catch(Exception ex){}
}
try{
Thread.sleep(20);
}catch(Exception ex){}
}
}
//update snake move
public void update(long timePassed){
lastmove += timePassed;
if(lastmove>movedelay){
snakeupdate();
if(growup==true){
seedupdate();
growup = false;
}
lastmove = 0;
}
}
//draw game screen
public abstract void draw(Graphics2D g);
//draw lost screen
public abstract void draw2(Graphics2D g);
//draw pause screen
public abstract void draw3(Graphics2D g);
}
Wednesday, 11 April 2012
Snake Game in Java
keyinputs.class is to use keylistener and keybord inputs
import java.awt.event.*;
import java.awt.*;
public class keyinputs extends engerekcore implements KeyListener{
public static void main(String[] args){
new keyinputs().run();
}
public String tostring(int a){
return mess+""+a;
}
public String tostring2(int a){
return mess3+""+a;
}
public int getsonrakiyon(){
return sonrakiyon;
}
public void init(){
super.init();
Window w = s.getFullScreenWindow();
w.setFocusTraversalKeysEnabled(false);
w.addKeyListener(this);
}
//keypressed
public void keyPressed(KeyEvent e){
int keyCode = e.getKeyCode();
if(keyCode == KeyEvent.VK_ENTER){//to stop //oyunu durdurur
pause = true;
becontinue = false;
}
if(keyCode == KeyEvent.VK_SPACE){
pause = false;
becontinue = true;
}
if(keyCode == KeyEvent.VK_BACK_SPACE)
continued = true;
if(keyCode == KeyEvent.VK_ESCAPE){//to exit //oyundan çıkar
stop();
}else{
yon = sonrakiyon;
if(keyCode == KeyEvent.VK_W)
if(yon!=kuzey && yon!=guney)
sonrakiyon = kuzey;
if(keyCode == KeyEvent.VK_S)
if(yon!=guney && yon!=kuzey)
sonrakiyon = guney;
if(keyCode == KeyEvent.VK_A)
if(yon!=bati && yon!=dogu)
sonrakiyon = bati;
if(keyCode == KeyEvent.VK_D)
if(yon!=dogu && yon!=bati)
sonrakiyon = dogu;
e.consume();
}
}
//keyReleased
public void keyReleased(KeyEvent e){
e.consume();
}
//last method from interface
public void keyTyped(KeyEvent e){
e.consume();
}
//engerekcoredaki draw metoduyla eş zamanlı çalışır//run in the same time with draw method in engerekcore
public synchronized void draw(Graphics2D g){
Window w = s.getFullScreenWindow();//tam ekrana geçiş
g.setColor(w.getBackground());//arka ekran rengi
g.fillRect(0, 0, s.getWidth(), s.getHeight());
g.setColor(w.getForeground());//ön ekran rengi
g.setFont(new Font("Matisse ITC",1,18));//yazı biçimi
for(int i=0;i<coord.size();i++)//yılanın ekrana bastırılması //drawing snake
g.drawImage(coord.get(i).gethead(),coord.get(i).getx(),coord.get(i).gety(),null);
for(int j=0;j<=780;j+=20){
g.drawImage(wall,j,0,null);
g.drawImage(wall,j,560,null);
}
for(int k=0;k<=560;k+=20){
g.drawImage(wall,0,k,null);
g.drawImage(wall,780,k,null);
}
for(int m = 0;m<8;m++)//yemin ekrana bastırılması //drawing seed
g.drawImage(food.get(m).gethead(),food.get(m).getx(),food.get(m).gety(),null);
g.drawString(tostring(score),570 ,595);
g.drawString(mess2,100,595);
g.drawString(tostring2(dead), 300, 595);
}
public synchronized void draw2(Graphics2D g){
Window w = s.getFullScreenWindow();
g.setColor(w.getBackground());
g.fillRect(0, 0, s.getWidth(), s.getHeight());
g.setColor(w.getForeground());
g.setFont(new Font("Matisse ITC",1,50));
g.drawString(mess5, 300, 250);
g.drawString(mess6, 100, 350);
}
public synchronized void draw3(Graphics2D g){
Window w = s.getFullScreenWindow();
g.setColor(w.getBackground());
g.fillRect(0, 0, s.getWidth(), s.getHeight());
g.setColor(w.getForeground());
g.setFont(new Font("Matisse ITC",1,50));
g.drawString(mess4, 300, 250);
}
}
Sunday, 8 April 2012
Snake Game in Java
engerek.class is to creat snake and update position of snake
import java.util.ArrayList;
import javax.swing.*;
import java.awt.Image;
//import java.math.*;
public class engerek extends variables{
//inner class
protected class ekans{
private double x;
private double y;
private Image head;
//default constructor
public ekans(){
this.head = kelle;
this.x = 0.0;
this.y = 0.0;
}
//constructor
public ekans(Image i,double a,double b){
this.head = i;
this.x = a;
this.y = b;
}
public Image gethead(){
return head;
}
public int getx(){
return (int)x;}
public int gety(){
return (int)y;}
public void setxy(double x,double y){
this.x = x;
this.y = y;
}
}
protected Image askelle = new ImageIcon("C:\\Users\\engerek\\images\\aw.png").getImage();//to load Snake head image
protected Image kelle = new ImageIcon("C:\\Users\\engerek\\images\\ae.png").getImage();//to Load Snake image
protected Image wall = new ImageIcon("C:\\Users\\engerek\\images\\ay.png").getImage(); //to Load WALL image
protected Image yem = new ImageIcon("C:\\Users\\engerek\\images\\as.png").getImage();//to Load Seed image
ArrayList<ekans> coord = new ArrayList<ekans>();
ArrayList<ekans> food = new ArrayList<ekans>();
public void addtile(Image i,int coorx,int coory){
coord.add(0,new ekans(i,coorx,coory));
}
public void start(){
addtile(kelle,320,300);
addtile(kelle,300,300);
addtile(kelle,280,300);
addtile(kelle,260,300);
addtile(kelle,240,300);
addtile(kelle,220,300);
food.add(new ekans(yem,300,400));
food.add(new ekans(askelle,500,500));
food.add(new ekans(yem,440,440));
food.add(new ekans(askelle,100,100));
}
public Image load(Image i){
i = new ImageIcon("C:\\javapics\\deadly.png").getImage();
return i;
}
public void seedupdate(){
double xco,yco;
boolean tamamdir = false;
while(tamamdir==false){
xco = Math.random()*20;
yco = Math.random()*20;
xco = 20 + Math.round(xco)*40;
yco = 20 + Math.round(yco)*40;
for(int i = 0;i<coord.size();i++)
if(xco!=coord.get(i).x && yco != coord.get(i).y){
if(xco<760 && yco<560 )
if(yco>20 && xco>20){
if(index%2==1){
food.remove(index);
food.add(index,new ekans(yem,xco,yco));
}else{
food.remove(index);
food.add(index,new ekans(askelle,xco,yco));
}
tamamdir = true;
}
}
}
}
public void snakeupdate(){
ekans e = coord.get(0); //ekans object is pointed first element of arraylist
ekans newmove = new ekans();
yon = sonrakiyon;
switch(yon){
case kuzey :
newmove.x = e.x;
newmove.y = e.y - 20.0;
break;
case guney :
newmove.x = e.x;
newmove.y = e.y + 20.0;
break;
case bati :
newmove.x = e.x - 20.0;
newmove.y = e.y;
break;
case dogu :
newmove.x = e.x + 20.0;
newmove.y = e.y;
break;
}
//collision of snake with walls
if(newmove.x<20){
lost = true;
return;
}if(newmove.x>780){
lost = true;
return;
}if(newmove.y<20){
lost = true;
return;
}if(newmove.y>560){
lost = true;
return;
}
//collision of snake with itself
for(int i=0;i<coord.size();i++){
if(newmove.x == coord.get(i).x && newmove.y == coord.get(i).y){
lost = true;
break;
}
}
//eating seed and growing up
for(int i = 0;i<food.size();i++)
if(newmove.x==food.get(i).getx() && newmove.y == food.get(i).gety()){
growup = true;
score += 5;
index = i;
break;
}
if(growup==true){
coord.add(0,newmove);
}else{
coord.add(0,newmove);
coord.remove(coord.size()-1);
}
}
//if collision is occur then snake starts up again
public void collision(){
coord.removeAll(coord);
start();
score = 0;
dead++;
lost = false;
sonrakiyon = kuzey;
}
}
Saturday, 11 February 2012
Java-Adding an Image
images.java
If you want to debug this class, then you should use class that FullScreen.java
import java.awt.*;
import javax.swing.JFrame;
import javax.swing.ImageIcon;
public class images extends JFrame{
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
DisplayMode dm = new DisplayMode(800,600,16,DisplayMode.REFRESH_RATE_UNKNOWN);
images i = new images();
i.run(dm);
}
private FullScreen s;
private Image bg;
private Image pic;
private Image ani;
private boolean loaded;
//run method
public void run(DisplayMode dm){
setBackground(Color.WHITE);
setForeground(Color.BLACK);
setFont(new Font("Arial",Font.PLAIN,24));
loaded = false;
s = new FullScreen();
try{
s.setFullScreen(dm, this);
loadpics();
try{
Thread.sleep(3000);//milliseconds
}catch(Exception ex){}
}finally{
s.restoreScreen();
}
}
//load pictures
public void loadpics(){
bg = new ImageIcon("C:\\anywhere.jpg").getImage();
pic = new ImageIcon("C:\\anywhere.png").getImage();
ani = new ImageIcon("C:\\anywhere.gif").getImage();
loaded = true;
repaint();
}
public void paint(Graphics g){
if(g instanceof Graphics2D){
Graphics2D g2 = (Graphics2D)g;
g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
}
if(loaded){
g.drawImage(bg, 30, 30, null);
g.drawImage(pic, 170, 180, null);
g.drawImage(ani,100,100,null);
}
}
}
Friday, 10 February 2012
Java-Full Screen App
burkan.java
import java.awt.*;
import javax.swing.JFrame;
public class burkan extends JFrame{
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
DisplayMode dm = new DisplayMode(800,600,16,DisplayMode.REFRESH_RATE_UNKNOWN);
burkan b = new burkan();
b.run(dm);
}
public void run(DisplayMode dm){
setBackground(Color.WHITE);
setForeground(Color.BLACK);
setFont(new Font("Arial",Font.PLAIN,24));
FullScreen s = new FullScreen();
try{
s.setFullScreen(dm, this);
try{
Thread.sleep(3000);
}catch(Exception ex){}
}finally{
s.restoreScreen();
}
}
public void paint(Graphics g){
if(g instanceof Graphics2D){
Graphics2D g2 = (Graphics2D)g;
g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
}
g.drawString("Hello World!!!", 200, 200);
}
}
FullScreen.java
import javax.swing.JFrame;
import java.awt.*;
public class FullScreen {
private GraphicsDevice vc;
public FullScreen(){
GraphicsEnvironment env = GraphicsEnvironment.getLocalGraphicsEnvironment();
vc = env.getDefaultScreenDevice();
}
public void setFullScreen(DisplayMode dm,JFrame window){
window.setUndecorated(true);
window.setResizable(false);
vc.setFullScreenWindow(window);
if(dm != null && vc.isDisplayChangeSupported()){
try{
vc.setDisplayMode(dm);
}catch(Exception ex){}
}
}
public Window getFullScreenWindow(){
return vc.getFullScreenWindow();
}
public void restoreScreen(){
Window w = vc.getFullScreenWindow();
if(w != null){
w.dispose();
}
vc.setFullScreenWindow(null);
}
}
Saturday, 4 February 2012
Java - Thread
burkan.java
import javax.swing.*;
public class burkan {
public static void main(String[] args){
Thread t1 = new Thread(new threads(300,300,1500));
Thread t2 = new Thread(new threads(250,250,3500));
Thread t3 = new Thread(new threads(200,200,6500));
Thread t4 = new Thread(new threads(100,100,8500));
Thread t5 = new Thread(new threads(50,50,10500));
t1.start();
t2.start();
t3.start();
t4.start();
t5.start();
}
}
graphics.java
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class graphics extends JPanel{
private int a,b;
public graphics(int i, int j) {
//constructor
a=i;
b=j;
}
public void paintComponent(Graphics g){
super.paintComponents(g);
this.setBackground(Color.WHITE);
g.setColor(Color.blue);
g.drawRect(100,100, a, b);
}
}
threads.java
import java.util.*;
import java.awt.*;
import javax.swing.*;
public class threads implements Runnable{
private int x,y;
public int time;
public JFrame f = new JFrame("LOOP");
public threads(int a,int b,int t){
//constructor
x=a;
y=b;
time = t;
}
public void run(){
try{
Thread.sleep(time);
graphics p = new graphics(x,y);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setSize(800,600);
f.setVisible(true);
f.add(p);
}catch(Exception e){}
}
}
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