micro3dcanvas.java

来自「3D手机游戏开发实例源代码 3D迷宫游戏的演示程序」· Java 代码 · 共 111 行

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

import javax.microedition.lcdui.game.*;
import com.mascotcapsule.micro3d.v3.*;

public class Micro3DCanvas extends GameCanvas implements Runnable{

    private Graphics3D g3d = new Graphics3D();

    private FigureLayout layout;
    private Effect3D effect;
    private AffineTrans trans;
    


    private Texture texture = null;

    private AffineTrans rotationX;
    private AffineTrans rotationY;
    private AffineTrans rotationZ;
    private AffineTrans camera;
    
    private Command ExitCommand;
    
    private static final int COMMAND = Graphics3D.PRIMITVE_QUADS | 
                                            Graphics3D.PDATA_COLOR_PER_FACE;

    private int[] POINTS = {10, 10, 10,   -10, 10, 10,    -10, -10, 10,   10,-10, 10,                // front
                            -10, 10,-10,    10, 10,-10,   10, -10,-10,    -10,-10,-10,             // back
                            -10, 10, 10,   -10, 10,-10,   -10, -10,-10,   -10,-10, 10,                // left
                            10, 10,-10,    10, 10, 10,    10, -10, 10,   10,-10,-10,                 // right
                            10, 10,-10,   -10, 10,-10,    -10, 10,10,     10, 10, 10,                // top
                            10,-10, 10,   -10,-10, 10,    -10,-10, -10,  10,-10,-10};            // bottom


    private int[] NORMALS = {0, 0, 4096};
    private int []TEXTURES = {0,0};

    private int []COLORS = {0xFFFF00, 0xFF0000, 0x00FFFF, 0x00FF00, 0x0000FF, 0xFF00FF};

    
    public Micro3DCanvas(){
        super(false);


        layout = new FigureLayout();
        effect = new Effect3D();
        trans = new AffineTrans();

        camera = new AffineTrans();
        rotationX = new AffineTrans();
        rotationY = new AffineTrans();
        rotationZ = new AffineTrans();

        camera.setIdentity();
        camera.lookAt( new Vector3D(0, 0, 64), new Vector3D(0, 0, -4096), new Vector3D(0, 4096, 0) );

        effect.setShadingType(Effect3D.NORMAL_SHADING);

        trans.setIdentity();
        trans.mul(camera);

        layout.setAffineTrans( trans );
        layout.setPerspective(1, 4096, 512);
        layout.setCenter(getWidth()/2, getHeight()/2);



        Thread t = new Thread(this);
        t.start();
    }

    public void draw3D(Graphics g){
        try{
            g3d.bind(g);
            g3d.renderPrimitives(null, 0, 0, layout, effect, COMMAND, 6, POINTS, NORMALS, TEXTURES, COLORS);
            g3d.flush();
        }finally{
            g3d.release( g );
        }
    }

    public void run(){
        Graphics g = getGraphics();
        
        while(true){
            g.setColor(0x000000);
            g.fillRect(0, 0, getWidth(), getHeight());
            draw3D(g);
            flushGraphics();

            // specify the rotation angle.
            rotationX.rotationX(56);
            rotationY.rotationY(32);
            rotationZ.rotationZ(48);
            trans.mul(rotationX);
            trans.mul(rotationY);
            trans.mul(rotationZ);

            try{
                Thread.sleep(10);
            }catch(Exception e){

            }
        }        
    }
}