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| /*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package bulles;
import java.awt.BasicStroke;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import java.awt.EventQueue;
import java.awt.Point;
import java.awt.Dimension;
import java.awt.BorderLayout;
import java.awt.RenderingHints;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Color;
import java.awt.GradientPaint;
/**
*
* @author
*/
public class Bulles {
public static void main(String[] args) {
new Bulles();
}
// Ball objects
private Ball[] balls = new Ball[5];
private int ballCount = 0;
public Bulles() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException ex) {
} catch (InstantiationException ex) {
} catch (IllegalAccessException ex) {
} catch (UnsupportedLookAndFeelException ex) {
}
JFrame frame = new JFrame("Bulles");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new BorderLayout());
Balls balls = new Balls();
frame.add(balls);
frame.setSize(600, 600);
frame.setVisible(true);
new Thread(new BounceEngine(balls)).start();
}
});
}
public static int random(int maxRange) {
return (int) Math.round((Math.random() * maxRange));
}
public class Balls extends JPanel {
public Balls() {
for (int index = 0; index < 5; index++) {
Ball tempBall = new Ball(new Color(random(255), random(255), random(255)));
balls[ballCount] = tempBall;
ballCount++;
}
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2d = (Graphics2D) g.create();
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
for (Ball ball : balls) {
ball.paint(g2d);
}
g2d.dispose();
}
public Ball[] getBalls() {
return balls;
}
}
public class BounceEngine implements Runnable {
private Balls parent;
public BounceEngine(Balls parent) {
this.parent = parent;
}
@Override
public void run() {
int width = getParent().getWidth();
int height = getParent().getHeight();
// Position de départ aléatoire...
for (Ball ball : getParent().getBalls()) {
int x = random(width);
int y = random(height);
Dimension size = ball.getSize();
if (x + size.width > width) {
x = width - size.width;
}
if (y + size.height > height) {
y = height - size.height;
}
ball.setLocation(new Point(x, y));
}
while (getParent().isVisible()) {
// Redessiner les balles...
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
getParent().repaint();
}
});
// dessiner à nouveau quand il y a une modification de position...
for (Ball ball : getParent().getBalls()) {
move(ball);
}
// vérifier s'il y a collision
collision();
// Ralentissement de la vitesse...
try {
Thread.sleep(300);
} catch (InterruptedException ex) {
}
}
}
public Balls getParent() {
return parent;
}
public void move(Ball ball) {
Point p = ball.getLocation();
Point speed = ball.getSpeed();
Dimension size = ball.getSize();
int vx = speed.x;
int vy = speed.y;
int x = p.x;
int y = p.y;
if (x + vx < 0 || x + size.width + vx > getParent().getWidth()) {
vx *= -1;
}
if (y + vy < 0 || y + size.height + vy > getParent().getHeight()) {
vy *= -1;
}
x += vx;
y += vy;
ball.setSpeed(new Point(vx, vy));
ball.setLocation(new Point(x, y));
}
public void collision() {
for(int i = 0; i < ballCount; i++)
{
Point pos1 = balls[i].getLocation();
Point speed1 = balls[i].getSpeed();
Dimension size1 = balls[i].getSize();
int vx1 = speed1.x;
int vy1 = speed1.y;
int x1 = pos1.x;
int y1 = pos1.y;
for(int j = i + 1; j < ballCount; j++)
{
Point pos2 = balls[j].getLocation();
Point speed2 = balls[j].getSpeed();
Dimension size2 = balls[j].getSize();
int vx2 = speed2.x;
int vy2 = speed2.y;
int x2 = pos2.x;
int y2 = pos2.y;
double d = (x1-x2)*(x1-x2) + (y1-y2)*(y1-y2);
d = Math.sqrt(d);
if(d < size1.width/2+size2.width/2) {
//collision
vx1 *= -1;
vy1 *= -1;
vx2 *= -1;
vy2 *= -1;
}
x1 += vx1;
y1 += vy1;
x2 += vx2;
y2 += vy2;
balls[i].setSpeed(new Point(vx1, vy1));
balls[i].setLocation(new Point(x1, y1));
balls[j].setSpeed(new Point(vx2, vy2));
balls[j].setLocation(new Point(x2, y2));
}
}
}
}
public class Ball {
private Color color;
private Point location;
private Dimension size;
private Point speed;
public Ball(Color color) {
setColor(color);
speed = new Point(5, 5);
size = new Dimension(30, 30);
}
public Dimension getSize() {
return size;
}
public void setColor(Color color) {
this.color = color;
}
public void setLocation(Point location) {
this.location = location;
}
public Color getColor() {
return color;
}
public Point getLocation() {
return location;
}
public Point getSpeed() {
return speed;
}
public void setSpeed(Point speed) {
this.speed = speed;
}
public void paint(Graphics2D g2d) {
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
g2d.setColor(color);
g2d.setStroke(new BasicStroke(3));
GradientPaint gradient = new GradientPaint(size.width / 2, 4,
color, (size.width) / 2, 4 + size.width, new Color(195,205,215,240));
g2d.setPaint(gradient);
g2d.fillOval(4, 4, size.width, size.width);
gradient = new GradientPaint(size.width / 25, 4, Color.white,
(size.width * 6) / 6, (size.width * 6) / 6, new Color(color
.getRed(), color.getGreen(), color
.getBlue(), 0));
g2d.setPaint(gradient);
g2d.fillOval(size.width / 25, 4, (size.width * 6) / 6,
(size.width * 6) / 6);
}
}
} |
Exercice d'application java dans NetBeans création de bulles
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