embedded mobile 3D graphics api (em3g)

 /*
 * GameCanvas.java
 *
 * Created on 2001年1月1日, 上午8:29
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

/**
 *
 * @author wingser
 */

import javax.microedition.lcdui.*;

import com.syjay.em3g.Graphics3D;

public class GameCanvas extends Canvas implements CommandListener{
    Graphics3D g3d;
    int y=0;
    /** Creates a new instance of GameCanvas */
    public GameCanvas() {
        this.addCommand(new Command("exit",Command.EXIT,0));
        this.setCommandListener(this);
        
        g3d = Graphics3D.getInstance();
        g3d.viewport(0,0,getWidth(),getHeight());
    }
    
    public void commandAction(Command c,Displayable d){
        Midlet.midlet.destroyApp(true);
        Midlet.midlet.notifyDestroyed();
    }
    
    public void paint(Graphics g){
        //Graphics3D
 
        g3d.bindTarget(g);
        
        g3d.clear(0);
        g3d.loadIdentity();
        
        g3d.translate(0,0,y);
        
        g3d.color(0xff0000);
        g3d.begin(Graphics3D.TRIANGLES);
        g3d.vertex3i(25,25,-2);
        g3d.vertex3i(75,25,-2);
        g3d.vertex3i(25,75,-2);
        g3d.end();
        
        g3d.flush();
    }
    
    public void keyPressed(int key){
        if(key==this.KEY_NUM2){
            y--;
        }else if(key==this.KEY_NUM8){
            if(y!=-1){
                y++;
            }
        }
        System.out.println(y);
    }
}