From ddce3349df1e295b8a3fe6249a8221454761b8ce Mon Sep 17 00:00:00 2001 From: Jesse Morgan Date: Thu, 27 Jan 2011 08:10:26 +0000 Subject: Here's what I've got so far with adapting Dr. Alden's code. A UI class that handles displaying the canvas and a World class that handles the objects in the world. Neither are complete. I'll pick this up tomorrow. I have a feeling we're going to have class path issues with the j3d libaries between our computers. I'll test between my desktop and Mac. If so, I'll drop the JARs for the java3d in the project and import them that way. --- src/tesseract/TesseractUI.java | 240 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 240 insertions(+) create mode 100644 src/tesseract/TesseractUI.java (limited to 'src/tesseract/TesseractUI.java') diff --git a/src/tesseract/TesseractUI.java b/src/tesseract/TesseractUI.java new file mode 100644 index 0000000..924f859 --- /dev/null +++ b/src/tesseract/TesseractUI.java @@ -0,0 +1,240 @@ +package tesseract; + +import java.awt.GraphicsConfiguration; +import java.awt.Toolkit; +import java.awt.event.ActionEvent; +import java.awt.event.ActionListener; +import java.awt.event.MouseEvent; +import java.awt.event.MouseMotionAdapter; +import java.awt.event.MouseWheelEvent; +import java.awt.event.MouseWheelListener; + +import javax.media.j3d.BoundingBox; +import javax.media.j3d.Canvas3D; +import javax.media.j3d.Transform3D; +import javax.media.j3d.TransformGroup; +import javax.swing.JFrame; +import javax.swing.JMenu; +import javax.swing.JMenuBar; +import javax.swing.JMenuItem; +import javax.swing.SwingUtilities; +import javax.swing.Timer; +import javax.vecmath.Point3d; +import javax.vecmath.Vector3f; + +import com.sun.j3d.utils.universe.SimpleUniverse; + +/** + * This class is the main UI for the Tesseract Project. + * + * @author Jesse Morgan + */ +public class TesseractUI extends JFrame { + + /** + * Generated serialVersionUID. + */ + private static final long serialVersionUID = 4097744746899308736L; + + /** + * Update Rate. + */ + private static final int UPDATE_RATE = 30; + + /** + * + */ + private static final double UNIT = 1; + + /** + * A reference to the world. + */ + private World myWorld; + + /** + * The Canvas. + */ + private Canvas3D myCanvas; + + /** + * Camera TransformGroup. + */ + private TransformGroup cameraTG; + + /** + * Camera position information. + */ + private double cameraXRotation, cameraYRotation, cameraDistance; + + /** + * UI Constructor. + */ + public TesseractUI() { + super("Tesseract Project"); + setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); + + myWorld = new World( + new BoundingBox(new Point3d(-UNIT / 2, -UNIT / 2, -UNIT / 2), + new Point3d(UNIT / 2, UNIT / 2, UNIT / 2))); + + createMenu(); + setupCanvas(); + pack(); + + // Maximize the windows + if (Toolkit.getDefaultToolkit(). + isFrameStateSupported(JFrame.MAXIMIZED_BOTH)) { + setExtendedState(getExtendedState() | JFrame.MAXIMIZED_BOTH); + } + } + + /** + * Create the menu. + */ + private void createMenu() { + JMenuBar menuBar = new JMenuBar(); + + JMenu simulationMenu = new JMenu("Simulation"); + menuBar.add(simulationMenu); + + /* + JCheckBoxMenuItem cMenuItem = new JCheckBoxMenuItem("Enable Particle Emitters", enableEmitters); + cMenuItem.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + enableEmitters = !enableEmitters; + } + }); + menu.add(cMenuItem); + + for (int i = 0; i < forces.length; i++) { + cMenuItem = new JCheckBoxMenuItem(forces[i].toString(), activeForces[i]); + cMenuItem.setActionCommand(i + ""); + cMenuItem.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + int index = Integer.parseInt(e.getActionCommand()); + activeForces[index] = !activeForces[index]; + } + }); + menu.add(cMenuItem); + } + */ + + // Exit Menu Item + JMenuItem exit = new JMenuItem("Exit"); + exit.addActionListener(new ActionListener() { + public void actionPerformed(final ActionEvent e) { + // TODO: I feel this is the wrong way of exiting... + System.exit(0); + } + }); + simulationMenu.add(exit); + + setJMenuBar(menuBar); + } + + /** + * Create and show the UI. + */ + private void setupCanvas() { + GraphicsConfiguration config + = SimpleUniverse.getPreferredConfiguration(); + + myCanvas = new Canvas3D(config); + + SimpleUniverse universe = new SimpleUniverse(myCanvas); + universe.getViewer().getView().setSceneAntialiasingEnable(true); + + // Set the camera + cameraTG = universe.getViewingPlatform().getViewPlatformTransform(); + cameraDistance = 3 * UNIT; + updateCamera(); + + // Add the scene BG. + universe.addBranchGraph(myWorld.getScene()); + + // Add the canvas to the frame. + add(myCanvas); + + + // Event listener time + myCanvas.addMouseMotionListener(new MouseMotionAdapter() { + private MouseEvent lastDragEvent = null; + + public void mouseDragged(final MouseEvent e) { + if (lastDragEvent != null) { + cameraXRotation += + Math.toRadians(e.getY() - lastDragEvent.getY()) / 3; + + if (cameraXRotation > Math.PI / 2) { + cameraXRotation = Math.PI / 2; + + } else if (cameraXRotation < -Math.PI / 2) { + cameraXRotation = -Math.PI / 2; + } + + cameraYRotation += + Math.toRadians(e.getX() - lastDragEvent.getX()) / 3; + + updateCamera(); + } + + lastDragEvent = e; + } + + public void mouseMoved(final MouseEvent e) { + lastDragEvent = null; + } + }); + + myCanvas.addMouseWheelListener(new MouseWheelListener() { + public void mouseWheelMoved(final MouseWheelEvent e) { + if (e.getWheelRotation() > 0) { + cameraDistance *= 1.05; + + } else if (e.getWheelRotation() < 0) { + cameraDistance *= 0.95; + } + + updateCamera(); + } + }); + + // Setup the timer. + new Timer(1000 / UPDATE_RATE, new ActionListener() { + public void actionPerformed(final ActionEvent e) { + myCanvas.stopRenderer(); + myWorld.tick(); + myCanvas.startRenderer(); + } + }).start(); + + } + + /** + * Method to update the camera. + */ + private void updateCamera() { + Transform3D camera3D = new Transform3D(); + camera3D.setTranslation(new Vector3f(0f, 0f, (float) -cameraDistance)); + Transform3D tmp = new Transform3D(); + tmp.rotX(cameraXRotation); + camera3D.mul(tmp); + tmp.rotY(cameraYRotation); + camera3D.mul(tmp); + camera3D.invert(); + cameraTG.setTransform(camera3D); + } + + /** + * Start up the program. + * + * @param args Unused commandline arguments. + */ + public static void main(final String[] args) { + SwingUtilities.invokeLater(new Runnable() { + public void run() { + new TesseractUI().setVisible(true); + } + }); + } +} -- cgit v1.2.3