m3gcanvas.java

J2ME下的3D游戏

import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.game.GameCanvas;
import javax.microedition.m3g.Background;
import javax.microedition.m3g.Camera;
import javax.microedition.m3g.Graphics3D;
import javax.microedition.m3g.Group;
import javax.microedition.m3g.Light;
import javax.microedition.m3g.Loader;
import javax.microedition.m3g.Node;
import javax.microedition.m3g.Object3D;
import javax.microedition.m3g.Transform;
import javax.microedition.m3g.World;

class M3GCanvas extends GameCanvas implements Runnable {

	// Choose another Camera25,26
//	 static final int CAMERA_ID = 30;
//	static final int CAMERA_ID = 50001;
	private final int LIGHT_ID = 28;
	private Camera camera = null;
	private MobileCamera mCamera = null;
	Graphics3D g3d = Graphics3D.getInstance();
	World myWorld = null;
	private Brick brick = new Brick();
	private Block block = new Block();
	private Node block1,block2;
	private boolean isGameOver = false;
	public M3GCanvas() {
		super(false);
		setFullScreenMode(false);
		
		
//		System.out.println("Brick:" );
//		System.out.println(new Group().toString());
		try {
			// Load the world from the m3g file
			Object3D[] list = Loader.load("/gogo.m3g");
	        for (int i = 0; i < list.length; i++) {
	            if (list[i] instanceof World) {
	                myWorld = (World) list[i];
	                break;
	            }
	        }

//			myWorld = (World) Loader.load("/gogo.m3g")[0];
//			 camera = (Camera) myWorld.find(CAMERA_ID);
			
			
			
//			float[] temp = new float[16];
//			Transform transform = new Transform();
//			myWorld.getTransform(transform);
//			transform.get(temp);
//			for(int i = 0; i < 16; i++){
//				System.out.print(temp[i]);
//				if(i%4==3)
//					System.out.println("\n");
//				
//			}
//			Transform tf = new Transform();
//			float[] temp2 = new float[]{
//					2,0,0,0,
//					0,2,0,0,
//					0,0,2,0,
//					0,0,0,2};
//			tf.set(temp2);
//			myWorld.setTransform(tf);
			
			
//			myWorld = new World();
			
			 float viewport_width = getWidth();
			 float viewport_height = getHeight();
			 float aspectRatio = (float)viewport_width/(float)viewport_height;
			mCamera = new MobileCamera(getWidth(), getHeight());
			
//			Light light = (Light)myWorld.find(LIGHT_ID);
			
//			Group group = new Group();
//			while(myWorld.getChildCount() > 0){
//				Node node = myWorld.getChild(0);
//				myWorld.removeChild(node);
//				group.addChild(node);
//			}
			myWorld.removeChild((Node)myWorld.find(31));
			myWorld.removeChild((Node)myWorld.find(32));
			
//			myWorld.addChild(group);
//			
			Background back = new Background();
			back.setColor(0x49C6F6);
			myWorld.setBackground(back);
			
//			light.setMode(Light.OMNI);
						
//			light.translate(0,2,0);
//			light.setIntensity(0.5f);
//			myWorld.addChild(light);
			
			myWorld.addChild(mCamera.getCameraGroup());
//			Group group1 = new Group();
//			group1.addChild(brick.getBrick());
			
//			myWorld.addChild(brick.getBrick());
			
			block1 = block.getBlock();
			
//			float[] temp = new float[16];
//			Transform tf = new Transform();
//			block1.getTransform(tf);
//			tf.get(temp);
//			for(int i=0;i<16;i++){
//				System.out.print(temp[i]+",");
//				if(i%4==3){
//					System.out.println("\n");
//				}
//			}
//			
//			brick.getBrick().getTransform(tf);
//			tf.get(temp);
//			for(int i=0;i<16;i++){
//				System.out.print(temp[i]+",");
//				if(i%4==3){
//					System.out.println("\n");
//				}
//			}
//			block1.translate(5, 5, 0);
			
//			block2 = (Node)block1.duplicate();
//			block2.setOrientation(-45, 0, 0, 1);
//			block2.translate(1, 0, 0);
//			block2.translate(-5, -5, 0);
			myWorld.addChild(block1);
//			myWorld.addChild(block2);
			myWorld = brick.createMap(myWorld);
			camera = mCamera.getCamera();
//			camera.setAlignment(brick.getBrick(), Node.ORIGIN, myWorld, Node.Y_AXIS);
//			camera.setPerspective(45, aspectRatio,1.0f,1000.0f);

			myWorld.setActiveCamera(camera);

		} catch (Exception e) {
			e.printStackTrace();
		}
		Thread thread = new Thread(this);
		thread.start();
//		paint();

	}
	public void paint(Graphics g2d) {
		
		try {
			if(isGameOver){
				g2d.setColor(0);
				g2d.fillRect(0, 0, getWidth(), getHeight());
				g2d.drawString("GAME OVER", 50, 50, Graphics.LEFT|Graphics.TOP);
			}
			g3d.bindTarget(g2d); // Binds the given Graphics or mutable
									// Image2D as the rendering target of this
									// Graphics3D
			g3d.clear(null);
			g3d.render(myWorld);
		} finally {
			g3d.releaseTarget();
		}
//		flushGraphics();
		
	}
//	public void paint() {
//		Graphics g2d = getGraphics();
//		try {
//			g3d.bindTarget(g2d); // Binds the given Graphics or mutable
//									// Image2D as the rendering target of this
//									// Graphics3D
//			g3d.clear(null);
//			g3d.render(myWorld);
//		} finally {
//			g3d.releaseTarget();
//		}
//		flushGraphics();
//	}

	protected void keyPressed(int keyCode) {
		int gameAction = getGameAction(keyCode);
		mCamera.pressedKey(gameAction);
		block.pressedKey(keyCode);

	}

	protected void keyReleased(int keyCode) {
		int gameAction = getGameAction(keyCode);
		mCamera.releasedKey(gameAction);
		block.releasedKey(keyCode);
	}

	public void run() {
		// TODO Auto-generated method stub
		while (true) {
			mCamera.update();
			if(block.checkImpact()){
				isGameOver = true;
				break;
			}
				
//			block.updateMove();
//			System.out.println(mCamera.getPosition());
			repaint();
		}
		repaint();
	}

	

}