java - How to have LevelLoader method 'ignore' undefined entities? -

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i using method of loading xml file game level similar this:

private void loadlevel(int levelid) { final simplelevelloader levelloader = new simplelevelloader(vbom);  final fixturedef fixture_def = physicsfactory.createfixturedef(0, 0.01f, 0.5f);  levelloader.registerentityloader(new entityloader<simplelevelentityloaderdata>(levelconstants.tag_level) {     public ientity onloadentity(final string pentityname, final ientity pparent, final attributes pattributes, final simplelevelentityloaderdata psimplelevelentityloaderdata) throws ioexception      {         final int width = saxutils.getintattributeorthrow(pattributes, levelconstants.tag_level_attribute_width);         final int height = saxutils.getintattributeorthrow(pattributes, levelconstants.tag_level_attribute_height);          // todo later specify camera bounds , create invisible walls         // on beginning , on end of level.          return gamescene.this;     } });  levelloader.registerentityloader(new entityloader<simplelevelentityloaderdata>(tag_entity) {     public ientity onloadentity(final string pentityname, final ientity pparent, final attributes pattributes, final simplelevelentityloaderdata psimplelevelentityloaderdata) throws ioexception     {         final int x = saxutils.getintattributeorthrow(pattributes, tag_entity_attribute_x);         final int y = saxutils.getintattributeorthrow(pattributes, tag_entity_attribute_y);         final string type = saxutils.getattributeorthrow(pattributes, tag_entity_attribute_type);          final sprite levelobject;          if (type.equals(tag_entity_attribute_type_value_platform1))         {             levelobject = new sprite(x, y, resourcesmanager.platform1_region, vbom);             physicsfactory.createboxbody(physicsworld, levelobject, bodytype.staticbody, fixture_def).setuserdata("platform1");         }          else if (type.equals(tag_entity_attribute_type_value_platform2))         {             levelobject = new sprite(x, y, resourcesmanager.platform2_region, vbom);             final body body = physicsfactory.createboxbody(physicsworld, levelobject, bodytype.staticbody, fixture_def);             body.setuserdata("platform2");             physicsworld.registerphysicsconnector(new physicsconnector(levelobject, body, true, false));         }         else if (type.equals(tag_entity_attribute_type_value_platform3))         {             levelobject = new sprite(x, y, resourcesmanager.platform3_region, vbom);             final body body = physicsfactory.createboxbody(physicsworld, levelobject, bodytype.staticbody, fixture_def);             body.setuserdata("platform3");             physicsworld.registerphysicsconnector(new physicsconnector(levelobject, body, true, false));         }         else if (type.equals(tag_entity_attribute_type_value_coin))         {             levelobject = new sprite(x, y, resourcesmanager.coin_region, vbom)             {                 @override                 protected void onmanagedupdate(float psecondselapsed)                  {                     super.onmanagedupdate(psecondselapsed);                      /**                       * todo                      * later check if player collide (coin)                      * , if does, increase score , hide coin                      * completed in next articles (after creating player code)                      */                 }             };             levelobject.registerentitymodifier(new loopentitymodifier(new scalemodifier(1, 1, 1.3f)));         }                     else         {             throw new illegalargumentexception();         }          levelobject.setcullingenabled(true);          return levelobject;     } });  levelloader.loadlevelfromasset(activity.getassets(), "level/" + levelid + ".lvl");

}

if add entity random type string in level xml file not defined in method , run it, stacktrace:

05-02 16:56:40.880: e/androidruntime(3665): fatal exception: updatethread 05-02 16:56:40.880: e/androidruntime(3665): org.andengine.util.level.exception.levelloaderexception: java.lang.illegalargumentexception 05-02 16:56:40.880: e/androidruntime(3665):     @ org.andengine.util.level.levelloader.loadlevelfromstream(levelloader.java:127) 05-02 16:56:40.880: e/androidruntime(3665):     @ org.andengine.util.level.levelloader.loadlevelfromasset(levelloader.java:97) 05-02 16:56:40.880: e/androidruntime(3665):     @ org.andengine.util.level.levelloader.loadlevelfromasset(levelloader.java:88) 05-02 16:56:40.880: e/androidruntime(3665):     @ org.andengine.util.level.levelloader.loadlevelfromasset(levelloader.java:82) 05-02 16:56:40.880: e/androidruntime(3665):     @ com.package.game.gamescene.loadlevel(gamescene.java:478) 05-02 16:56:40.880: e/androidruntime(3665):     @ com.package.game.gamescene.setlevel(gamescene.java:1693) 05-02 16:56:40.880: e/androidruntime(3665):     @ com.package.game.scenemanager$1.ontimepassed(scenemanager.java:117) 05-02 16:56:40.880: e/androidruntime(3665):

i need able load different entities @ different time 1 level file, how can modify method somehow kind of "ignores" entities not defined?

i have looked in levelparser.java method startelement(), can bypass illegalargumentexception exception thrown in andengine creating default entity loader. i.e.,

levelloader.setdefaultentityloader( new ientityloader() {      @override     public void onloadentity(string pentityname, attributes pattributes) {         // todo auto-generated method stub         log.w("setdefaultentityloader","unknown entity");     }  });

this default onloadentity() called instead of exception being raised. tested on gles 1 , works expected.

hope helps.


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