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| public class Dammier extends JPanel {
public enum AnimType {
NO, FIXED_TIME, FIXED_STEP
}
private static final int NBCASES = 10;
protected static final long DURATION = 500;
protected static final long STEPS = 300;
private static final long RATE = 5;
private volatile Rectangle2D shape;
// TODO : on devrait mettre ça dans un objet à part (si on veut pouvoir en bouger plusieurs, il vaudrait mieux)
private volatile int currentcase;
private volatile boolean move;
private final Timer timer;
private volatile TimerTask timerTask;
private AnimType animType;
private long duration;
private long step;
public Dammier() {
super(new GridLayout(0, NBCASES,0, 0), true);
animType = AnimType.NO;
duration=DURATION;
step=STEPS;
timer=new Timer();
setBorder(null);
for (int i = 0; i < NBCASES; i++) {
for (int j = 0; j < NBCASES; j++) {
JPanel panel = new JPanel();
if (j % 2 == (i % 2 == 0 ? 0 : 1)) {
panel.setBackground(Color.WHITE);
} else {
panel.setOpaque(false);
}
final int icase = i*NBCASES+j;
panel.setEnabled(true);
panel.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
if ( e.getButton()== MouseEvent.BUTTON1 ) {
switch (animType) {
case NO:
moveShape(icase);
break;
case FIXED_TIME:
moveShapeFixedTime(icase, duration);
break;
case FIXED_STEP:
moveShapeFixedSpeed(icase, step);
break;
default:
break;
}
}
}
});
add(panel);
}
}
addComponentListener(new ComponentAdapter() {
@Override
public void componentResized(ComponentEvent e) {
if ( timerTask==null ) {
shape = getComponent(currentcase).getBounds().getBounds2D();
}
}
});
shape = new Rectangle2D.Double();
currentcase=0;
}
public void setAnimType(AnimType animType) {
this.animType=animType;
}
public AnimType getAnimType() {
return animType;
}
public void setDuration(long duration) {
this.duration = duration;
}
public long getDuration() {
return duration;
}
public void setStep(long step) {
this.step = step;
}
public long getStep() {
return step;
}
protected void moveShapeFixedTime(final int target, final long duration) {
if ( timerTask==null && target!=currentcase ) {
timerTask = new AdaptableTimerTask() {
private volatile FixedTimeMove fixedTimeMove = new FixedTimeMove(
getComponent(currentcase).getBounds().getBounds2D(),
getComponent(target).getBounds().getBounds2D(),
duration,
target);
protected void recompute() {
Rectangle2D currentBounds = fixedTimeMove.getCurrentBounds();
Rectangle2D bounds = getComponent(currentcase).getBounds().getBounds2D();
double sx = bounds.getWidth()/currentBounds.getWidth();
double sy = bounds.getHeight()/currentBounds.getHeight();
fixedTimeMove = new FixedTimeMove(
new Rectangle2D.Double(currentBounds.getCenterX()*sx-bounds.getWidth()/2,
currentBounds.getCenterY()*sy-bounds.getHeight()/2,
bounds.getWidth(),
bounds.getHeight()),
getComponent(target).getBounds().getBounds2D(),
fixedTimeMove.getRemainingTime(),
target);
}
@Override
public void run() {
fixedTimeMove.run();
}
};
timer.scheduleAtFixedRate(timerTask, 0, RATE);
}
}
protected void moveShapeFixedSpeed(final int target, final long step) {
if ( timerTask==null && target!=currentcase ) {
timerTask = new AdaptableTimerTask() {
private volatile FixedStepMove fixedStepMove = new FixedStepMove(
getComponent(currentcase).getBounds().getBounds2D(),
getComponent(target).getBounds().getBounds2D(),
step,
Double.MAX_VALUE,
target);
protected void recompute() {
Rectangle2D currentBounds = fixedStepMove.getCurrentBounds();
Rectangle2D bounds = getComponent(currentcase).getBounds().getBounds2D();
double sx = bounds.getWidth()/currentBounds.getWidth();
double sy = bounds.getHeight()/currentBounds.getHeight();
fixedStepMove = new FixedStepMove(
new Rectangle2D.Double(currentBounds.getCenterX()*sx-bounds.getWidth()/2,
currentBounds.getCenterY()*sy-bounds.getHeight()/2,
bounds.getWidth(),
bounds.getHeight()),
getComponent(target).getBounds().getBounds2D(),
step,
fixedStepMove.getRemainingDistance(),
target
);
}
@Override
public void run() {
fixedStepMove.run();
}
};
timer.scheduleAtFixedRate(timerTask, 0, RATE);
}
}
protected void moveShape(int dest) {
cancelPreviousMove();
currentcase=dest;
shape=getComponent(currentcase).getBounds().getBounds2D();
repaint();
}
private void cancelPreviousMove() {
if (timerTask!=null) {
timerTask.cancel();
timerTask=null;
}
}
@Override
protected void paintChildren(Graphics g) {
super.paintChildren(g);
g.setColor(Color.GREEN);
((Graphics2D)g).fill(shape);
}
private abstract class AdaptableTimerTask extends TimerTask implements ComponentListener {
public AdaptableTimerTask() {
addComponentListener(this);
}
@Override
public boolean cancel() {
if( super.cancel() ) {
removeComponentListener(this);
return true;
}
else {
return false;
}
}
@Override
public void componentResized(ComponentEvent e) {
recompute();
}
@Override
public void componentMoved(ComponentEvent e) {
}
@Override
public void componentShown(ComponentEvent e) {
}
@Override
public void componentHidden(ComponentEvent e) {
}
protected abstract void recompute();
}
private class FixedTimeMove {
private final long startTime = System.currentTimeMillis();
private final Point2D.Double startPoint;
private final Point2D.Double endPoint;
private final long duration;
private final Rectangle2D targetBounds;
private final int target;
private final double dx;
private final double dy;
private Rectangle2D currentBounds;
private long remainingTime;
public FixedTimeMove(Rectangle2D startBounds, Rectangle2D endBounds, long duration, int target) {
this.duration = duration;
this.remainingTime = duration;
this.startPoint = new Point2D.Double(startBounds.getCenterX(), startBounds.getCenterY());
this.endPoint = new Point2D.Double(endBounds.getCenterX(), endBounds.getCenterY());
double timeStep = duration/RATE;
dx = computePixelStep(endPoint.getX()-startPoint.getX(), timeStep);
dy = computePixelStep(endPoint.getY()-startPoint.getY(), timeStep);
currentBounds = startBounds;
targetBounds = endBounds;
this.target = target;
}
public final Rectangle2D getCurrentBounds() {
return currentBounds;
}
public final long getRemainingTime() {
return remainingTime;
}
public void run() {
final long time = System.currentTimeMillis();
long elapsedTime = time-startTime;
if ( elapsedTime<=duration) {
remainingTime = duration - elapsedTime;
currentBounds= new Rectangle2D.Double(currentBounds.getX()+dx, currentBounds.getY()+dy, currentBounds.getWidth(), currentBounds.getHeight());
shape=currentBounds;
}
else {
remainingTime = 0;
cancelPreviousMove();
currentcase = target;
shape=targetBounds;
}
repaint();
}
private double computePixelStep(double distance, double step) {
distance /= step;
if ( distance==java.lang.Double.NaN ) {
distance=0;
}
return distance;
}
}
private class FixedStepMove {
private final Point2D.Double startPoint;
private final Point2D.Double endPoint;
private final double step;
private final Rectangle2D targetBounds;
private final int target;
private final double dx;
private final double dy;
private final double distance;
private volatile double remainingDistance;
private volatile Rectangle2D currentBounds;
public FixedStepMove(Rectangle2D startBounds, Rectangle2D endBounds, long step, double remainingDistance, int target) {
this.step = step/100.0; // 100ème pixels
this.startPoint = new Point2D.Double(startBounds.getCenterX(), startBounds.getCenterY());
this.endPoint = new Point2D.Double(endBounds.getCenterX(), endBounds.getCenterY());
distance = startPoint.distance(endPoint);
dx = computePixelStep(endPoint.getX()-startPoint.getX(), distance, this.step);
dy = computePixelStep(endPoint.getY()-startPoint.getY(), distance, this.step);
currentBounds = startBounds;
targetBounds = endBounds;
this.target = target;
this.remainingDistance = Math.min(remainingDistance, distance);
}
public Rectangle2D getCurrentBounds() {
return currentBounds;
}
public double getRemainingDistance() {
return remainingDistance;
}
private double computePixelStep(double dist, double distance, double step) {
return step * (dist/distance); // Thales
}
public void run() {
double nextX = currentBounds.getX()+dx;
double nextY = currentBounds.getY()+dy;
double distance = Point.distance(currentBounds.getX(), currentBounds.getY(), nextX, nextY);
remainingDistance -= distance;
if ( remainingDistance>0 ) {
currentBounds= new Rectangle2D.Double(nextX, nextY, currentBounds.getWidth(), currentBounds.getHeight());
shape=currentBounds;
}
else {
cancelPreviousMove();
currentcase = target;
shape=targetBounds;
}
repaint();
}
}
public static void main(String[] args) {
SwingUtilities.invokeLater(() -> run());
}
private static void run() {
JFrame frame = new JFrame("Démo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel mainPanel = new JPanel(new BorderLayout());
JPanel configPanel = new JPanel(new GridBagLayout());
JRadioButton buttonNoAnim = new JRadioButton("Pas d'animation");
configPanel.add(buttonNoAnim, new GridBagConstraints(0, 0, 2, 1, 1, 0, GridBagConstraints.BASELINE_LEADING, GridBagConstraints.BOTH, new Insets(1,1,1,1), 0, 0));
JRadioButton buttonFixedTime = new JRadioButton("Temps fixe (ms)");
configPanel.add(buttonFixedTime, new GridBagConstraints(0, 1, 1, 1, 0, 0, GridBagConstraints.BASELINE_LEADING, GridBagConstraints.BOTH, new Insets(1,1,1,1), 0, 0));
JSpinner timeSpinner = new JSpinner(new SpinnerNumberModel(DURATION, 15, 300000, 100));
configPanel.add(timeSpinner, new GridBagConstraints(1, 1, 1, 1, 1, 0, GridBagConstraints.BASELINE_TRAILING, GridBagConstraints.BOTH, new Insets(1,1,1,1), 0, 0));
JRadioButton buttonFixedStep = new JRadioButton("Pas fixe (100ème px)");
configPanel.add(buttonFixedStep, new GridBagConstraints(0, 2, 1, 1, 0, 0, GridBagConstraints.BASELINE_LEADING, GridBagConstraints.BOTH, new Insets(1,1,1,1), 0, 0));
JSpinner stepSpinner = new JSpinner(new SpinnerNumberModel(STEPS, 1, 300, 1));
configPanel.add(stepSpinner, new GridBagConstraints(1, 2, 1, 1, 1, 0, GridBagConstraints.BASELINE_TRAILING, GridBagConstraints.BOTH, new Insets(1,1,1,1), 0, 0));
ButtonGroup group = new ButtonGroup();
group.add(buttonNoAnim);
group.add(buttonFixedTime);
group.add(buttonFixedStep);
Dammier dammier = new Dammier();
buttonNoAnim.addActionListener(e-> dammier.setAnimType(AnimType.NO));
buttonFixedTime.addActionListener(e-> dammier.setAnimType(AnimType.FIXED_TIME));
buttonFixedStep.addActionListener(e-> dammier.setAnimType(AnimType.FIXED_STEP));
timeSpinner.addChangeListener(e-> dammier.setDuration(((java.lang.Double)timeSpinner.getValue()).longValue()));
stepSpinner.addChangeListener(e-> dammier.setStep(((java.lang.Double)stepSpinner.getValue()).longValue()));
switch (dammier.getAnimType()) {
case NO:
buttonNoAnim.setSelected(true);
break;
case FIXED_TIME:
buttonFixedTime.setSelected(true);
break;
case FIXED_STEP:
buttonFixedStep.setSelected(true);
break;
default:
break;
}
mainPanel.add(dammier, BorderLayout.CENTER);
mainPanel.add(configPanel, BorderLayout.SOUTH);
frame.getContentPane().add(mainPanel);
frame.setSize(300, 300);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
} |
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