Android 游戏发动机AndEngine(加载场景)

Android 游戏引擎AndEngine(加载场景)

package gongzibai.co.cc;

import org.anddev.andengine.engine.Engine;
import org.anddev.andengine.engine.camera.Camera;
import org.anddev.andengine.engine.options.EngineOptions;
import org.anddev.andengine.engine.options.EngineOptions.ScreenOrientation;
import org.anddev.andengine.engine.options.resolutionpolicy.RatioResolutionPolicy;
import org.anddev.andengine.entity.scene.Scene;
import org.anddev.andengine.entity.sprite.Sprite;
import org.anddev.andengine.entity.util.FPSLogger;
import org.anddev.andengine.opengl.texture.Texture;
import org.anddev.andengine.opengl.texture.TextureOptions;
import org.anddev.andengine.opengl.texture.region.TextureRegion;
import org.anddev.andengine.opengl.texture.region.TextureRegionFactory;
import org.anddev.andengine.ui.activity.BaseGameActivity;

public class V3Activity extends
  BaseGameActivity {

//与图片像素一致
 int Camera_WIDTH = 410;
 int Camera_HEIGHT = 308;
 Camera mCamera;
 Texture mTexture;
 TextureRegion mTextureRegion;

 /** Called when the activity is first created. */
 @Override
 public Engine onLoadEngine() {
  // TODO Auto-generated method stub
  mCamera = new Camera(0, 0,
    Camera_WIDTH,
    Camera_HEIGHT);

//设置屏幕水平方向
  return new Engine(
    new EngineOptions(
      true,
      ScreenOrientation.LANDSCAPE,
      new RatioResolutionPolicy(
        Camera_WIDTH,
        Camera_HEIGHT),
      mCamera));
 }

 @Override
 public void onLoadResources() {
  // TODO Auto-generated method stub

//必须设置为 (i.e. 32, 64, 128, 256, 512, 1024).
  mTexture = new Texture(
    512,
    512,
    TextureOptions.BILINEAR_PREMULTIPLYALPHA);

//加载图片资源
  mTextureRegion = TextureRegionFactory
    .createFromAsset(
      mTexture, this,
      "gfx/Icon.jpg",
      0, 0);
  mEngine.getTextureManager()
    .loadTexture(mTexture);

 }

 @Override
 public Scene onLoadScene() {
  // TODO Auto-generated method stub

//与中心为场景贴图

  mEngine.registerUpdateHandler(new FPSLogger());
  final Scene scene = new Scene(1);
  final int centerX = (Camera_WIDTH - mTextureRegion
    .getWidth())/2 ;
  final int centerY = (Camera_HEIGHT - mTextureRegion
    .getHeight())/2 ;
  final Sprite sprite = new Sprite(
    centerX, centerY,
    mTextureRegion);
  scene.getLastChild()
    .attachChild(sprite);

  return scene;
 }

 @Override
 public void onLoadComplete() {
  // TODO Auto-generated method stub

 }

}