我有一个方法makeExplosion
:
private void makeExplosion(float x, float y){
final AnimatedSprite explosion = new AnimatedSprite(x, y, BitmapTextureAtlasTextureRegionFactory.createTiledFromAsset(this.mExplosionBitmapTextureAtlas, this, "explosion.png", 0, 0, 4, 2));
explosion.animate(50);
mScene.attachChild(explosion);
explosion.registerUpdateHandler(new IUpdateHandler(){
@Override
public void onUpdate(float pSecondsElapsed) {
if(explosion.getCurrentTileIndex() == 7){
mScene.detachChild(explosion);
}
}
@Override
public void reset() {
}});
}
..哪个不起作用。我收到以下错误:
FATAL EXCEPTION: UpdateThread
java.lang.IndexOutOfBoundsException: Invalid index 19, size is 19
at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:257)
at java.util.ArrayList.get(ArrayList.java:311)
at org.anddev.andengine.entity.Entity.onManagedUpdate(Entity.java:1024)
at org.anddev.andengine.entity.scene.Scene.onManagedUpdate(Scene.java:250)
at org.anddev.andengine.entity.Entity.onUpdate(Entity.java:882)
at org.anddev.andengine.engine.Engine.onUpdateScene(Engine.java:488)
at org.anddev.andengine.engine.Engine.onUpdate(Engine.java:483)
at org.anddev.andengine.engine.Engine.onTickUpdate(Engine.java:459)
at org.anddev.andengine.engine.Engine$UpdateThread.run(Engine.java:685)
...我假设是因为我正在删除其AnimatedSprite
中间的onUpdate()
。如果没有这个问题,我怎样才能实现我的目标?
答案 0 :(得分:5)
从场景中分离精灵时,它应该在runOnUpdateThread()中分离;
public void onUpdate(float pSecondsElapsed) {
if(explosion.getCurrentTileIndex() == 7){
runOnUpdateThread(new Runnable() {
@Override
public void run() {
mScene.detachChild(explosion);
}
});
}
}