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| package jeu;
import java.util.Timer;
import java.util.TimerTask;
import javax.microedition.lcdui.*;
import javax.microedition.m3g.*;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;
public class Tron3D extends MIDlet implements CommandListener
{
private Display monDisplay = null;
private CallbackCanvas monCanvas = null;
private Command commandeSortie = new Command("Sortir", Command.ITEM, 1);
private World monMonde = null;
private Timer monRafraichissement = new Timer();
private TimerTask monRafraichissementProcessus = null;
private Camera camera;
private Graphics3D monGraphique3D;
private Mesh scene;
private float posX = 0.0f;
private float posZ = 0.0f;
private float rotY = 0.0f;
private final float PI_OVER_180 = 0.0174532925f;
private final float pas = 1.00f;
public Tron3D()
{
monDisplay = Display.getDisplay(this);
monCanvas = new CallbackCanvas(this);
monCanvas.setCommandListener(this);
monCanvas.addCommand(commandeSortie);
}
public void startApp() throws MIDletStateChangeException
{
monMonde = new World();
monDisplay.setCurrent(monCanvas);
try
{
//Object3D[] roots = Loader.load("/tron3D.m3g");
//monMonde = (World)roots[0];
monGraphique3D = Graphics3D.getInstance();
camera = new Camera();
float aspect = 320.0f/240.0f;
camera.setPerspective(30.0f, aspect, 1.0f, 1000.0f);
monMonde.addChild(camera);
Background background = new Background();
Image2D img = (Image2D)Loader.load("/sky.png")[0];
background.setImage(img);
monMonde.setBackground(background);
scene = getScene();
scene.setTranslation(0.0f, 0.0f, 0.0f);
monMonde.addChild(scene);
monMonde.setActiveCamera(camera);
monCanvas.repaint();
System.out.println ( "startApp" );
}
catch(Exception erreur)
{
erreur.printStackTrace();
}
}
public void pauseApp()
{
System.out.println ( "pauseApp" );
monRafraichissementProcessus.cancel();
monRafraichissementProcessus = null;
monMonde = null;
}
public void destroyApp(boolean unconditional) throws MIDletStateChangeException
{
System.out.println ( "destroyApp" );
monRafraichissement.cancel();
monRafraichissement = null;
monRafraichissementProcessus = null;
monMonde = null;
monCanvas = null;
}
private void dessine( Graphics g )
{
try
{
monGraphique3D.bindTarget(g); // Binds the given Graphics or mutable Image2D as the rendering target of this Graphics3D
monGraphique3D.render(monMonde); // Render the world
}
finally
{
monGraphique3D.releaseTarget();
}
g.setColor(0x00FFFFFF);
g.drawString( "X="+posX+",Z="+posZ+",Y="+rotY, 0, Font.SIZE_SMALL, Graphics.LEFT|Graphics.TOP );
}
public void paint(Graphics g)
{
if ((monCanvas == null) || (monCanvas == null))
return;
if (monRafraichissementProcessus != null)
{
monRafraichissementProcessus.cancel();
monRafraichissementProcessus = null;
}
dessine(g);
monRafraichissementProcessus = new monRafraichissementProcessus();
monRafraichissement.schedule(monRafraichissementProcessus, 500); // 40 = 25 images / seconde
System.out.println ( "paint" );
}
private class monRafraichissementProcessus extends TimerTask
{
public void run()
{
monMonde.getActiveCamera().setOrientation(rotY, 0, 0, 1);
monMonde.getActiveCamera().setTranslation(posX, posZ, 0);
System.out.println ( "monRafraichissementProcessus" );
monCanvas.repaint();
}
}
public void commandAction(Command cmd, Displayable disp)
{
if (cmd == commandeSortie)
{
try
{
destroyApp(false);
notifyDestroyed();
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
public void keyPressed(int keyCode)
{
switch (keyCode)
{
case Canvas.KEY_NUM2: // Haut
posX -= (float)Math.sin(rotY*PI_OVER_180) * pas;
posZ -= (float)Math.cos(rotY*PI_OVER_180) * pas;
break;
case Canvas.KEY_NUM8: // Bas
posX += (float)Math.sin(rotY*PI_OVER_180) * pas;
posZ += (float)Math.cos(rotY*PI_OVER_180) * pas;
break;
case Canvas.KEY_NUM4: // Gauche
rotY += 1.0f;
break;
case Canvas.KEY_NUM6: // Droite
rotY -= 1.0f;
break;
default:
break;
}
}
private class CallbackCanvas extends Canvas
{
Tron3D monMidlet;
CallbackCanvas(Tron3D midlet)
{
monMidlet = midlet;
}
void init() {}
void destroy() {}
protected void paint(Graphics g)
{
monMidlet.paint(g);
}
protected void keyPressed(int keyCode)
{
monMidlet.keyPressed(keyCode);
}
}
private Mesh getScene()
{
VertexBuffer cubeVertexData;
TriangleStripArray cubeTriangles;
/** The cube's vertex positions (x, y, z). */
final byte[] VERTEX_POSITIONS = {
-1, -1, 1, 1, -1, 1, -1, 1, 1, 1, 1, 1,
-1, -1, -1, 1, -1, -1, -1, 1, -1, 1, 1, -1
};
/** Indices that define how to connect the vertices to build triangles. */
int[] TRIANGLE_INDICES = { 0, 1, 2, 3, 7, 1, 5, 4, 7, 6, 2, 4, 0, 1 };
cubeVertexData = new VertexBuffer();
VertexArray vertexPositions = new VertexArray(VERTEX_POSITIONS.length/3, 3, 1);
vertexPositions.set(0, VERTEX_POSITIONS.length/3, VERTEX_POSITIONS);
cubeVertexData.setPositions(vertexPositions, 1.0f, null);
cubeTriangles = new TriangleStripArray( TRIANGLE_INDICES, new int[] {TRIANGLE_INDICES.length} );
cubeVertexData.setDefaultColor(0xFFFFFFFF);
Mesh mesh = new Mesh(cubeVertexData, cubeTriangles, null);
return mesh;
}
} |
Midlet en 3D
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