android 3D 游戏实现之综合实例(初步)

效果比5月份那份代码和谐了一点，但仍有待改进，现在我将代码发上来。

完整项目可以去http://simdanfeg.download.csdn.net/处下载

(1)Activity类

package sim.feel;import java.io.IOException;import java.io.InputStream;import android.app.Activity;import android.content.res.AssetManager;import android.content.res.Resources;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.opengl.GLSurfaceView;import android.os.Bundle;import android.view.Window;import android.view.WindowManager;public class AdvancedExample extends Activity { // GLSurfaceView private GLSurfaceView glView; // 实例化MyRenderer对象 private MyRenderer mr = new MyRenderer(); @Override public void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  // 设置无标题  requestWindowFeature(Window.FEATURE_NO_TITLE);  // 设置全屏  getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,    WindowManager.LayoutParams.FLAG_FULLSCREEN);  // init loadFile  new LoadFile(getResources());  glView = new GLSurfaceView(this);  glView.setRenderer(mr);  setContentView(glView); }}// 载入文件class LoadFile { public static Resources resource; public LoadFile(Resources res) {  resource = res; } // file public static InputStream loadf(String fileName) {  AssetManager am = LoadFile.resource.getAssets();  try {   return am.open(fileName);  } catch (IOException e) {   return null;  } } // image public static Bitmap loadi(int id) {  Bitmap bitmap = BitmapFactory.decodeResource(resource, id);  return bitmap; }}

(2)Renderer类

package sim.feel;import javax.microedition.khronos.egl.EGLConfig;import javax.microedition.khronos.opengles.GL10;import android.graphics.Bitmap;import android.opengl.GLSurfaceView.Renderer;import com.threed.jpct.Camera;import com.threed.jpct.Config;import com.threed.jpct.FrameBuffer;import com.threed.jpct.GenericVertexController;import com.threed.jpct.Light;import com.threed.jpct.Loader;import com.threed.jpct.Matrix;import com.threed.jpct.Mesh;import com.threed.jpct.Object3D;import com.threed.jpct.Primitives;import com.threed.jpct.RGBColor;import com.threed.jpct.SimpleVector;import com.threed.jpct.Texture;import com.threed.jpct.TextureInfo;import com.threed.jpct.TextureManager;import com.threed.jpct.World;import com.threed.jpct.util.MemoryHelper;/** * 一个包含3ds,md2导入及纹理等的综合例子 *  * @author Simdanfeg *  */public class MyRenderer implements Renderer { // 圆周率 private static float PI = (float) Math.PI; // FrameBuffer private FrameBuffer fb = null; // World对象 private World world = null; // Object3D对象,分别为平面，人物，岩石，天空 private Object3D plane = null; private Object3D snork = null; private Object3D rock = null; private Object3D dome = null; // Light对象 private Light sun = null; // ind private float ind = 0; // FPS private int fps = 0; // 返回当前毫秒数 private long time = System.currentTimeMillis(); // Bitmap对象 private Bitmap igrass = null; private Bitmap idisco = null; private Bitmap irock = null; private Bitmap inormals = null; private Bitmap isky = null; // TextureManager对象 private TextureManager tm = null; // 默认构造 public MyRenderer() {  // 优化操作  Config.maxPolysVisible = 1000;  Config.farPlane = 1500;  Config.glTransparencyMul = 0.1f;  Config.glTransparencyOffset = 0.1f;  Config.useVBO = true;  Texture.defaultToMipmapping(true);  Texture.defaultTo4bpp(true); } // 将载入的图片添加到TextureManager中 public void loadTexture() {  igrass = LoadFile.loadi(R.drawable.grasssample2);  idisco = LoadFile.loadi(R.drawable.disco);  irock = LoadFile.loadi(R.drawable.rock);  inormals = LoadFile.loadi(R.drawable.normals);  isky = LoadFile.loadi(R.drawable.sky);  // TextureManager  tm = TextureManager.getInstance();  tm.addTexture("grass", new Texture(igrass));  tm.addTexture("disco", new Texture(idisco));  tm.addTexture("rock", new Texture(irock));  tm.addTexture("normals", new Texture(inormals));  tm.addTexture("sky", new Texture(isky)); } public void onDrawFrame(GL10 gl) {  SimpleVector offset = new SimpleVector(1, 0, -1).normalize();  // animate the snork and the dome  animate();  offset.rotateY(0.007f);  // render the scene  fb.clear();  world.renderScene(fb);  world.draw(fb);  fb.display();  // print out the fps to the console  if (System.currentTimeMillis() - time >= 1000) {   System.out.println(fps);   fps = 0;   time = System.currentTimeMillis();  }  fps++; } public void onSurfaceChanged(GL10 gl, int width, int height) {  if (fb != null) {   fb = null;  }  fb = new FrameBuffer(gl, width, height); } public void onSurfaceCreated(GL10 gl, EGLConfig height) {  // 启用混合  gl.glEnable(GL10.GL_BLEND);  gl.glBlendFunc(GL10.GL_ONE, GL10.GL_ONE_MINUS_SRC_ALPHA);  // Load textures  loadTexture();  // World  world = new World();  // 设置world环境光  world.setAmbientLight(120, 120, 120);  // Load/create and setup objects  // 平面(草地)  plane = Primitives.getPlane(20, 15);  plane.rotateX(PI / 2);  plane.setSpecularLighting(true);  // 设置纹理  plane.setTexture("grass");  plane.setCollisionMode(Object3D.COLLISION_CHECK_OTHERS);  // plane.forceGeometryIndices(true);  // 岩石  rock = loadModel("rock.3ds", 15f);  rock.translate(0, 0, -90);  rock.rotateX(-PI / 2);  // 设置双重纹理  TextureInfo stoneTex = new TextureInfo(tm.getTextureID("rock"));  stoneTex.add(tm.getTextureID("normals"), TextureInfo.MODE_MODULATE);  rock.setTexture(stoneTex);  rock.setSpecularLighting(true);  // 人物  snork = Loader.loadMD2(LoadFile.loadf("snork.md2"), 0.8f);  snork.translate(0, -25, -50);  snork.rotateY(45);  snork.setTexture("disco");  // 设置碰撞模式  snork.setCollisionMode(Object3D.COLLISION_CHECK_SELF);  // 天空  dome = loadModel("dome.3ds", 0.5f);  dome.build();  dome.setTexture("sky");  dome.calcTextureWrap();  // 优化,但有用此方法显示有问题  // tileTexture(dome, 3);  // 计算plane与dome的差矢量  dome.translate(plane.getTransformedCenter().calcSub(    dome.getTransformedCenter()));  dome.setLighting(Object3D.LIGHTING_NO_LIGHTS);  // dome.forceGeometryIndices(true);  dome.setAdditionalColor(RGBColor.WHITE);  // 将Object3d传入到World对象中  world.addObject(plane);  world.addObject(rock);  world.addObject(snork);  world.addObject(dome);  // 编译world中所有对象  world.buildAllObjects();  // Compile all objects for better performance  plane.compile();  rock.compile();  dome.compile();  plane.strip();  rock.strip();  dome.strip();  // 变形plane,这太有意思了,我喜欢  // Deform the plane  Mesh planeMesh = plane.getMesh();  planeMesh.setVertexController(new Mod(), false);  planeMesh.applyVertexController();  planeMesh.removeVertexController();  // Move camera  Camera cam = world.getCamera();  cam.moveCamera(Camera.CAMERA_MOVEOUT, 150);  cam.moveCamera(Camera.CAMERA_MOVEUP, 100);  cam.lookAt(plane.getTransformedCenter());  cam.setFOV(1.5f);  // Setup dynamic light source  sun = new Light(world);  sun.setIntensity(250, 250, 250);  // 回收内存  MemoryHelper.compact(); } /*  * 动画  */ private void animate() {  ind += 0.1f;  if (ind > 1) {   ind -= 1;  }  snork.animate(ind, 2);  snork.rotateY(-0.02f);  snork.translate(0, -50, 0);  SimpleVector dir = snork.getXAxis();  dir = snork.checkForCollisionEllipsoid(dir, new SimpleVector(5, 20, 5),    5);  snork.translate(dir);  dir = snork.checkForCollisionEllipsoid(new SimpleVector(0, 100, 0),    new SimpleVector(5, 20, 5), 1);  snork.translate(dir); } // 载入模型 private Object3D loadModel(String filename, float scale) {  // 将载入的3ds文件保存到model数组中  Object3D[] model = Loader.load3DS(LoadFile.loadf(filename), scale);  // 取第一个3ds文件  Object3D o3d = new Object3D(0);  // 临时变量temp  Object3D temp = null;  // 遍历model数组  for (int i = 0; i < model.length; i++) {   // 给temp赋予model数组中的某一个   temp = model[i];   // 设置temp的中心为 origin (0,0,0)   temp.setCenter(SimpleVector.ORIGIN);   // 沿x轴旋转坐标系到正常的坐标系(jpct-ae的坐标中的y,x是反的)   temp.rotateX((float) (-.5 * Math.PI));   // 使用旋转矩阵指定此对象旋转网格的原始数据   temp.rotateMesh();   // new 一个矩阵来作为旋转矩阵   temp.setRotationMatrix(new Matrix());   // 合并o3d与temp   o3d = Object3D.mergeObjects(o3d, temp);   // 主要是为了从桌面版JPCT到android版的移徝(桌面版此处为o3d.build())   o3d.compile();  }  // 返回o3d对象  return o3d; } // static class Mod public static class Mod extends GenericVertexController {  private static final long serialVersionUID = 1L;  public void apply() {   // 返回未修改前plane的Mesh信息   SimpleVector[] s = getSourceMesh();   // 定义SimpleVector得到DestinationMesh   SimpleVector[] d = getDestinationMesh();   // 变形主要操作   for (int i = 0; i < s.length; i++) {    d[i].z = s[i].z      - (10f * ((float) Math.sin(s[i].x / 50f) + (float) Math        .cos(s[i].y / 50f)));    d[i].x = s[i].x;    d[i].y = s[i].y;   }  } }}

效果图

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