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package gjt.test;
import java.net.URL;
import java.applet.Applet;
import java.awt.*;
import gjt.Util;
import gjt.Orientation;
import gjt.animation.*;
/**
* An animation playfield containing a lone sprite that bounces
* off the boundaries of the playfield.<p>
*
* @version 1.0, Apr 1 1996
* @author David Geary
* @see gjt.test.AnimationTest
* @see gjt.animation.Playfield
* @see gjt.animation.Sprite
*/
public class SimpleAnimationTest extends UnitTest {
public String title() {
return "Simple Animation - Mouse Down Starts/Stops";
}
public Panel centerPanel() {
return new SimpleAnimationTestPanel(this);
}
}
class SimpleAnimationTestPanel extends Panel {
public SimpleAnimationTestPanel(Applet applet) {
setLayout(new BorderLayout());
add("Center", new SimplePlayfield(applet));
}
}
class SimplePlayfield extends Playfield {
private Applet applet;
private URL cb;
private Sprite javaDrinker;
private Sequence spinSequence;
public SimplePlayfield(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) {
// Nothing to do: only 1 sprite!
}
public void edgeCollision(Sprite sprite,
Orientation orientation) {
if(orientation == Orientation.RIGHT ||
orientation == Orientation.LEFT)
sprite.reverseX();
else
sprite.reverseY();
}
private void makeSequencesAndSprites() {
String file;
Point startLoc = new Point(10, 10);
Image[] spinImages = new Image[19];
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);
}
spinSequence = new Sequence(this, spinImages);
javaDrinker = new Sprite(this, spinSequence, startLoc);
javaDrinker.setMoveVector(new Point(2,2));
addSprite(javaDrinker);
}
}
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