m3gcanvas.java

来自「3D手机游戏开发实例源代码」· Java 代码 · 共 88 行

import javax.microedition.lcdui.*;
import javax.microedition.lcdui.game.*;
import javax.microedition.m3g.*;
import java.io.*;
public class M3GCanvas extends GameCanvas implements Runnable {
    private Graphics3D g3d ;


    private World world;
    private int iStartTime;
    private static final String FILE_NAME = "/cartrack.m3g";


    public M3GCanvas(){
        super(true);

        
        try
        {
            world = (World)Loader.load(FILE_NAME)[0];
        } catch (IOException e)
        {
            System.out.println("Load failed (" + e.getMessage() + ")");
            e.printStackTrace();
           
        }
        
      //  traverse(world); 
        iStartTime = (int)System.currentTimeMillis();
        Thread t = new Thread(this);
        t.start();
    }

    public void run() {
        Graphics g = getGraphics();
        while(true) {
        g3d = Graphics3D.getInstance();
        g3d.bindTarget(g);
        try{
        g3d.clear(null);
        world.animate((int) System.currentTimeMillis() - iStartTime);
        world.align(null);
        g3d.render(world);
        }catch(Exception e){
            System.err.println(e);
        }finally{
            g3d.releaseTarget();
        }
        flushGraphics();
            try {
                Thread.sleep(200); 
            }
            catch (InterruptedException e) {
                
            }
        }
    }
      private void traverse(Node aNode)
    {
        if (aNode instanceof Mesh)
        {
            Mesh mesh = (Mesh)aNode;
            for (int i = 0; i < mesh.getSubmeshCount(); i++)
            {
                Appearance app = mesh.getAppearance(i);
                CompositingMode cm = new CompositingMode();
                cm.setBlending(CompositingMode.ALPHA_ADD);
                app.setCompositingMode(cm);
                app.setTexture(0, null);
                Material mat = new Material();
                mat.setColor(Material.AMBIENT | Material.DIFFUSE | Material.SPECULAR, 0xff000000);
                mat.setColor(Material.EMISSIVE, 0xff444444);
                app.setMaterial(mat);
            }
        }
        if (aNode instanceof Group)
        {
            Group group = (Group)aNode;
            for (int i = 0; i < group.getChildCount(); i++)
            {
                traverse(group.getChild(i));
            }
        }
    } 

}