嗨,我试图让精灵在淡出和缩小后淡入并放大。为此,我使用了实体修饰符侦听器,但它不起作用?这是我的代码:
public class GameScene {
Scene gameScene;
Engine engine;
Activity activity;
BitmapTextureAtlas mTextureAtlas;
ITextureRegion X;
ITextureRegion O;
ITextureRegion XO;
FadeInModifier fadeIn = new FadeInModifier(2);
FadeOutModifier fadeOut = new FadeOutModifier(2);
ScaleModifier scaleDown = new ScaleModifier(3, 1, 0);
ScaleModifier scaleUp = new ScaleModifier(2, 0, 1);
Sprite XOsprite;
Random rand = new Random();
boolean XYset = false;
public GameScene(Engine eng, Activity act) {
engine = eng;
activity = act;
}
public Scene getScene() {
gameScene = new Scene();
gameScene.setBackground(new Background(0, 256, 59));
int x = 0, y = 0;
if (rand.nextInt(2) == 0) {
XO = X;
} else {
XO = O;
}
if (!XYset) {
x = rand.nextInt(MainActivity.CAM_WIDTH);
y = rand.nextInt(MainActivity.CAM_HEIGHT);
XYset = true;
}
XOsprite = new Sprite(x, y, XO, engine.getVertexBufferObjectManager()) {
@Override
public boolean onAreaTouched(final TouchEvent te, final float xVal,
final float yVal) {
XOsprite.registerEntityModifier(fadeOut);
XOsprite.registerEntityModifier(scaleDown);
return true;
}
};
IEntityModifierListener fadeOutListener = new IEntityModifierListener() {
@Override
public void onModifierStarted(IModifier<IEntity> pModifier,
IEntity pItem) {
// TODO Auto-generated method stub
}
@Override
public void onModifierFinished(IModifier<IEntity> pModifier,
IEntity pItem) {
// TODO Auto-generated method stub
XOsprite.clearEntityModifiers();
XOsprite.setPosition(rand.nextInt(MainActivity.CAM_WIDTH), rand.nextInt(MainActivity.CAM_HEIGHT));
XOsprite.registerEntityModifier(fadeIn);
XOsprite.registerEntityModifier(scaleUp);
}
};
fadeOut.addModifierListener(fadeOutListener);
XOsprite.registerEntityModifier(scaleUp);
XOsprite.registerEntityModifier(fadeIn);
gameScene.attachChild(XOsprite);
gameScene.registerTouchArea(XOsprite);
return gameScene;
}
精灵只是淡出,没有任何反应。我还希望精灵在淡入时改变到屏幕上的随机位置。帮助?