Developer CD Series 2000 August: Tool Chest/Dev.CD Aug 00 TC Disk 2.toast/pc/sample code/quicktime/quicktime for java/bouncingsprites/src/spritedemoapp.java

Java Source | 2000-06-23 | 4.6 KB | 168 lines

/*
 * QuickTime for Java SDK Sample Code

   Usage subject to restrictions in SDK License Agreement
 * Copyright: © 1996-1999 Apple Computer, Inc.

 */
import java.awt.*;
import java.awt.event.*;
import java.io.IOException;
import java.io.File;

import quicktime.*;
import quicktime.qd.*;
import quicktime.io.*;
import quicktime.app.image.*;
import quicktime.app.display.*;
import quicktime.app.QTFactory;
import quicktime.util.*;

import quicktime.app.anim.*;
import quicktime.app.actions.*;
import quicktime.std.image.*;

public final class SpriteDemoApp extends Frame {
    public static void main (String[] args) {
        try {
            QTSession.open();
            SpriteDemoApp win = new SpriteDemoApp ("QT in Java");
            win.show();
            win.toFront();
        } catch (Exception e) {
            QTSession.close();
            e.printStackTrace();
        }
    }

    MovingQTCanvas c1;
    MovingQTCanvas c2;
    boolean c1Active;

    SpriteDemoApp (String s) throws Exception {
        super(s);
        setResizable (false);
        setLayout(new BorderLayout());
        setBounds (0, 0, 400, 220);
        addWindowListener (new WindowAdapter() {
            public void windowClosing (WindowEvent we) {
                c1.cleanup();
                c2.cleanup();
                QTSession.close();
                dispose();
            }
            public void windowClosed (WindowEvent we) {
                System.exit(0);
            }
        });

        Compositor shipAnimation = new Compositor (new QDGraphics (new QDRect(200, 200)),
                                                    QDColor.yellow, 20, 1);
        addSprites (shipAnimation);
        shipAnimation.getTimer().setRate(1);

        c1 = new MovingQTCanvas (shipAnimation);
        add("West", c1);
        c1.setClient (shipAnimation, true);

        c2 = new MovingQTCanvas (shipAnimation);
        add("East", c2);

        Button b = new Button ("Click Here To Make Sprites Jump");
        b.addActionListener (new ActionListener () {
            boolean c1Active = true;

            public void actionPerformed (ActionEvent event) {
                if (c1Active) {
                    c1.removeClient();
                    c2.doSetClient();
                } else {
                    c2.removeClient();
                    c1.doSetClient();
                }
                c1Active = ! c1Active;
            }
        });
        add("North", b);
    }

    // this is used to change the rates when the clients are changed
    static int r = 2;

    class MovingQTCanvas extends QTCanvas {

        MovingQTCanvas (Compositor anim) {
            client = anim;
        }

        Compositor client;

        void doSetClient() {
            try {
                setClient (client, true);
                if (r++ % 3 == 0)
                    client.getTimer().setRate(0);
                else {
                    float rt = client.getTimer().getRate();
                    if (rt == 0)
                        client.getTimer().setRate (1);
                    else
                        client.getTimer().setRate (-client.getTimer().getRate());
                }
            } catch (QTException e) {
                e.printStackTrace();
            }
        }

        public void cleanup () {
            client = null;
            removeClient();
        }
    }

    static void addSprites (Compositor sh) throws IOException, QTException {
        File matchFile = QTFactory.findAbsolutePath ("images/Ship01.pct");    //this file must exist in the directory!!!
        ImageDataSequence isp = ImageUtil.createSequence (matchFile);
        ImageDataSequence seq = ImageUtil.makeTransparent (isp, QDColor.blue);

// Build Sprites
        Matrix matrix1 = new Matrix();
        matrix1.setTx(20);
        matrix1.setTy(20);
        matrix1.setSx(0.8F);
        matrix1.setSy(0.8F);
        TwoDSprite s1 = new TwoDSprite(seq, 4, matrix1, true, 1);
        sh.addMember (s1);

        Matrix matrix2 = new Matrix();
        matrix2.setTx(4);
        matrix2.setTy(4);
        TwoDSprite s2 = new TwoDSprite(seq, 1, matrix2, true, 10);
        sh.addMember (s2);

        // This needs to be a 32bit QDGraphics so the blend mode will
        // be applied correctly to this sprite
        File shipFile = QTFactory.findAbsolutePath ("images/Ship10.pct");
        GraphicsImporterDrawer ip = new GraphicsImporterDrawer (new QTFile(shipFile));
        QDRect r = new QDRect (ip.getDescription().getWidth(), ip.getDescription().getHeight());
        ImageSpec si = ImageUtil.makeTransparent (ip, QDColor.blue, new QDGraphics (QDGraphics.kDefaultPixelFormat, r));
        Matrix matrix3 = new Matrix();
        matrix3.setTx(50);
        matrix3.setTy(50);
        TwoDSprite s3 = new TwoDSprite(si, matrix3, true, 8, new GraphicsMode (QDConstants.blend, QDColor.green));
        sh.addMember(s3);

// Build ActionList
        SimpleActionList al = new SimpleActionList();
        ImageSequencer is = new ImageSequencer (seq);
        is.setLooping (ImageSequencer.kLoopForwards);
        al.addMember (new NextImageAction (10, 1, is, s1));
        al.addMember (new BounceAction (5, 1, sh, s1, 3, 2));
        ImageSequencer is2 = new ImageSequencer (seq);
        is2.setLooping (ImageSequencer.kLoopForwards);
        al.addMember (new NextImageAction (20, 1, is2, s2));
        al.addMember (new BounceAction (20, 1, sh, s2, 4, 3));
        sh.addController(al);
    }
}