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package gjt.test;
import java.net.URL;
import java.applet.Applet;
import java.awt.*;
import java.awt.Panel;
import gjt.Util;
import gjt.Orientation;
import gjt.animation.*;
/**
* An animation playfield containing two "java drinkers", that
* both bounce off the sides of the playfield.<p>
*
* One of the java drinkers moves slow and spins fast, while
* the other java drinker moves fast and spins slow. When
* the two java drinkers collide, they both play a bump
* sequence - at different speeds.<p>
*
* @version 1.0, Apr 1 1996
* @author David Geary
* @see gjt.test.AnimationTest
* @see gjt.animation.Playfield
* @see gjt.animation.Sprite
*/
public class TwoDrinkersAnimationTest extends UnitTest {
public String title() {
return
"TwoDrinkers Animation - Mouse Down Starts/Stops";
}
public Panel centerPanel() {
return new TwoDrinkersAnimationTestPanel(this);
}
}
class TwoDrinkersAnimationTestPanel extends Panel {
public TwoDrinkersAnimationTestPanel(Applet applet) {
setLayout(new BorderLayout());
add("Center", new TwoDrinkersPlayfield(applet));
}
}
class TwoDrinkersPlayfield extends Playfield {
private Applet applet;
private URL cb;
private Sprite moveFastSpinSlow, moveSlowSpinFast;
private Sequence fastSpinSequence,
slowSpinSequence,
fastBumpSequence,
slowBumpSequence;
public TwoDrinkersPlayfield(Applet applet) {
this.applet = applet;
cb = applet.getCodeBase();
makeSequencesAndSprites();
}
public void paintBackground(Graphics g) {
Image bg = applet.getImage(cb, "gifs/background.gif");
Util.wallPaper(this, g, bg);
}
public boolean mouseDown(Event event, int x, int y) {
if(running() == true) stop ();
else start();
return true;
}
public void spriteCollision(Sprite sprite, Sprite sprite2) {
if(moveSlowSpinFast.getSequence() != fastBumpSequence) {
sprite.reverse();
sprite2.reverse();
moveSlowSpinFast.play(fastBumpSequence, 3);
moveFastSpinSlow.play(slowBumpSequence, 3);
}
}
public void edgeCollision(Sprite sprite,
Orientation orientation) {
if(orientation == Orientation.RIGHT ||
orientation == Orientation.LEFT)
sprite.reverseX();
else
sprite.reverseY();
}
private void makeSequencesAndSprites() {
String file;
Image[] spinImages = new Image[19];
Image[] bumpImages = new Image[6];
Image[] volleyball = new Image[4];
for(int i=0; i < spinImages.length; ++i) {
file = "gifs/spin";
if(i < 10) file += "0" + i + ".gif";
else file += i + ".gif";
spinImages[i] = applet.getImage(cb, file);
}
for(int i=0; i < bumpImages.length; ++i) {
file = "gifs/bump0" + i + ".gif";
bumpImages[i] = applet.getImage(cb, file);
}
fastSpinSequence = new Sequence(this, spinImages);
slowSpinSequence = new Sequence(this, spinImages);
fastBumpSequence = new Sequence(this, bumpImages);
slowBumpSequence = new Sequence(this, bumpImages);
moveFastSpinSlow =
new Sprite(this,
slowSpinSequence, new Point(25, 75));
moveSlowSpinFast =
new Sprite(this,
fastSpinSequence, new Point(250,250));
fastSpinSequence.setAdvanceInterval(50);
slowSpinSequence.setAdvanceInterval(300);
fastBumpSequence.setAdvanceInterval(25);
slowBumpSequence.setAdvanceInterval(200);
moveFastSpinSlow.setMoveVector(new Point(2,3));
moveSlowSpinFast.setMoveVector(new Point(-1,-1));
moveSlowSpinFast.setMoveInterval(100);
addSprite(moveFastSpinSlow);
addSprite(moveSlowSpinFast);
}
}
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