Error when getting count of childs after set new parent to entity.

Hi, guys!

Is it expected behaviour?

Code (JavaScript):

1. this.world.forEach([game.Menu, ut.Entity], (menu, menuEntity) => {
2.     let menuItemEntity: ut.Entity = ut.EntityGroup.instantiate(this.world, "game.MenuItem")[0];
3.  
4.     this.world.usingComponentData(menuItemEntity, [ut.Core2D.TransformNode], (transform) => {
5.         transform.parent = menuEntity;
6.     });
7.  
8.     let menuItemsCount: number = ut.Core2D.TransformService.countChildren(this.world, menuEntity);
9. });

If so, how to avoid such behavior?

 

Yes, sadly this is expected behaviour. At the moment the only way I found to fix this is to run the instantiation of the children in a different world.foreach loop. And then in the next loop you can count them.

Code (JavaScript):

1. this.world.forEach([game.Menu, ut.Entity], (menu, menuEntity) => {
2.     let menuItemEntity: ut.Entity = ut.EntityGroup.instantiate(this.world, "game.MenuItem")[0];
3.  
4.     this.world.usingComponentData(menuItemEntity, [ut.Core2D.TransformNode], (transform) => {
5.         transform.parent = menuEntity;
6.     });
7. });
8.  
9. this.world.forEach([game.Menu, ut.Entity], (menu, menuEntity) => {
10.     let menuItemsCount: number = ut.Core2D.TransformService.countChildren(this.world, menuEntity);
11. });

 

Pakor, thank you for your reply. I will try to use this way.