[Kde-games-devel] kspaceduel: porting to Graphics View

[Dmitry Suzdalev]

On Friday 29 December 2006 01:00, Henrique Pinto wrote:
> Either:
>
> 	foreach(QGraphicsItem *item, hitlist)
> 	{
> 		bullet = static_cast<BulletSprite*>(item);
> 		...
> 	}
>
> or:
> 	foreach(BulletSprite *bullet, hitlist)
> 	{
> 		...
> 	}
You forgot to note that this one will only work if hitlist is composed of 
BulletSprite* ;-).

There's a third possibility:

You can use qgraphicsitem_cast instead of static_cast.
It should be faster, but you need to prepare you QGraphicsItem-inherited class 
for its use.

See http://doc.trolltech.com/4.2/qgraphicsitem.html#qgraphicsitem_cast for 
information on how to do that :-).

Cheers,
Dmitry.