andengine源码及示例程序

andengine源码及示例程序，这是最新版。 上课用的andengine是上一个版本，变化较大。

示例程序也重新进行了修改，导入示例程序时需要附加的一些库。

步骤如下：

导入这些库程序项目，并为分别为它们指定最新版的

1  把示例程序项目和这些库程序项目（在下图中所有红色叉号的都是需要的项目）都导入andengine库文件andengine.jar

2 导入示例程序AndEngineExamples新建一个目录libs并把第1步中生成的库文件都复制到这个目录，然后添加路径，而不是像下图所示的方法（通过所所有库项目都导入）。

一个简单的示例程序：

import org.andengine.engine.camera.Camera;import org.andengine.engine.options.EngineOptions;import org.andengine.engine.options.ScreenOrientation;import org.andengine.engine.options.resolutionpolicy.RatioResolutionPolicy;import org.andengine.entity.particle.SpriteParticleSystem;import org.andengine.entity.particle.emitter.CircleOutlineParticleEmitter;import org.andengine.entity.particle.initializer.AlphaParticleInitializer;import org.andengine.entity.particle.initializer.BlendFunctionParticleInitializer;import org.andengine.entity.particle.initializer.ColorParticleInitializer;import org.andengine.entity.particle.initializer.RotationParticleInitializer;import org.andengine.entity.particle.initializer.VelocityParticleInitializer;import org.andengine.entity.particle.modifier.AlphaParticleModifier;import org.andengine.entity.particle.modifier.ColorParticleModifier;import org.andengine.entity.particle.modifier.ExpireParticleInitializer;import org.andengine.entity.particle.modifier.ScaleParticleModifier;import org.andengine.entity.scene.IOnSceneTouchListener;import org.andengine.entity.scene.Scene;import org.andengine.entity.sprite.Sprite;import org.andengine.entity.util.FPSLogger;import org.andengine.input.touch.TouchEvent;import org.andengine.opengl.texture.TextureOptions;import org.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlas;import org.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlasTextureRegionFactory;import org.andengine.opengl.texture.region.ITextureRegion;import org.andengine.ui.activity.SimpleBaseGameActivity;import android.opengl.GLES20;import android.widget.Toast;public class MainActivity extends SimpleBaseGameActivity {// ===========================================================// Constants// ===========================================================private static final int CAMERA_WIDTH = 720;private static final int CAMERA_HEIGHT = 480;// ===========================================================// Fields// ===========================================================private Camera mCamera;private BitmapTextureAtlas mBitmapTextureAtlas;private ITextureRegion mParticleTextureRegion;// ===========================================================// Constructors// ===========================================================// ===========================================================// Getter & Setter// ===========================================================// ===========================================================// Methods for/from SuperClass/Interfaces// ===========================================================@Overridepublic EngineOptions onCreateEngineOptions() {Toast.makeText(this, "Touch the screen to move the particlesystem.", Toast.LENGTH_LONG).show();this.mCamera = new Camera(0, 0, MainActivity.CAMERA_WIDTH, MainActivity.CAMERA_HEIGHT);return new EngineOptions(true, ScreenOrientation.LANDSCAPE_FIXED, new RatioResolutionPolicy(MainActivity.CAMERA_WIDTH, MainActivity.CAMERA_HEIGHT), this.mCamera);}@Overrideprotected void onCreateResources() {BitmapTextureAtlasTextureRegionFactory.setAssetBasePath("gfx/");this.mBitmapTextureAtlas = new BitmapTextureAtlas(this.getTextureManager(), 32, 32, TextureOptions.BILINEAR_PREMULTIPLYALPHA);this.mParticleTextureRegion = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mBitmapTextureAtlas, this, "particle_point.png", 0, 0);this.mBitmapTextureAtlas.load();}@Overrideprotected Scene onCreateScene() {this.mEngine.registerUpdateHandler(new FPSLogger());final Scene scene = new Scene();final CircleOutlineParticleEmitter particleEmitter = new CircleOutlineParticleEmitter(MainActivity.CAMERA_WIDTH * 0.5f, MainActivity.CAMERA_HEIGHT * 0.5f + 20, 80);final SpriteParticleSystem particleSystem = new SpriteParticleSystem(particleEmitter, 60, 60, 360, this.mParticleTextureRegion, this.getVertexBufferObjectManager());scene.setOnSceneTouchListener(new IOnSceneTouchListener() {@Overridepublic boolean onSceneTouchEvent(final Scene pScene, final TouchEvent pSceneTouchEvent) {particleEmitter.setCenter(pSceneTouchEvent.getX(), pSceneTouchEvent.getY());return true;}});particleSystem.addParticleInitializer(new ColorParticleInitializer<Sprite>(1, 0, 0));particleSystem.addParticleInitializer(new AlphaParticleInitializer<Sprite>(0));particleSystem.addParticleInitializer(new BlendFunctionParticleInitializer<Sprite>(GLES20.GL_SRC_ALPHA, GLES20.GL_ONE));particleSystem.addParticleInitializer(new VelocityParticleInitializer<Sprite>(-2, 2, -20, -10));particleSystem.addParticleInitializer(new RotationParticleInitializer<Sprite>(0.0f, 360.0f));particleSystem.addParticleInitializer(new ExpireParticleInitializer<Sprite>(6));particleSystem.addParticleModifier(new ScaleParticleModifier<Sprite>(0, 5, 1.0f, 2.0f));particleSystem.addParticleModifier(new ColorParticleModifier<Sprite>(0, 3, 1, 1, 0, 0.5f, 0, 0));particleSystem.addParticleModifier(new ColorParticleModifier<Sprite>(4, 6, 1, 1, 0.5f, 1, 0, 1));particleSystem.addParticleModifier(new AlphaParticleModifier<Sprite>(0, 1, 0, 1));particleSystem.addParticleModifier(new AlphaParticleModifier<Sprite>(5, 6, 1, 0));scene.attachChild(particleSystem);return scene;}// ===========================================================// Methods// ===========================================================// ===========================================================// Inner and Anonymous Classes}使用了新库，添加了资源，如下图所示：<img src="http://img.blog.csdn.net/20141108125119375?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvYWhiYnNoZW5mZW5n/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" /> 这里的函数框架名与老版本的已经有很大变化，不过本质内容还是没变！ 

如果出现如下错误：

Unable to execute dex: Multiple dex files define

请查看这个。