v3object.java

来自「3D手机游戏开发实例源代码」· Java 代码 · 共 48 行

import javax.microedition.midlet.*;
import com.mascotcapsule.micro3d.v3.*;


public abstract class V3Object {
    
    public static AffineTrans lookAt = null;
    
    private int Z_POS = 128;
    private int Y_POS = 128;
    private Vector3D pos, dir, up;
    
    public V3Object(){
        
        pos = new Vector3D(0, Y_POS, Z_POS);
        dir= new Vector3D(0, -1024, -2048);
        up = new Vector3D(0, 4096, 0);
        
        if(lookAt == null){
            lookAt = new AffineTrans();
            lookAt.setIdentity();
            lookAt.lookAt(pos, dir, up);
        }
    }

    public void zoomIn(){
        Z_POS-=2;
        Y_POS--;
        pos.y = Y_POS;
        pos.z = Z_POS;
        lookAt.setIdentity();
        lookAt.lookAt(pos, dir, up);
    }

    public void zoomOut(){
        Z_POS+=2;
        Y_POS++;
        pos.y = Y_POS;
        pos.z = Z_POS;
        lookAt.setIdentity();
        lookAt.lookAt(pos, dir, up);
    }
  
    
    
}