[Qt-interest] Howto Do `hit Test' with QGraphicsItems ?

[Sean Harmer]

Hi,

On Wednesday 05 May 2010 11:47:53 Aaron Lewis wrote:
> Hi,
> 	I'm deploying a small game , which i need to set up some `edges'. I've
> learned the term hitTest from Flash , kinda of collision detections.
> 
> 	e.g I have a wall around a map , and player should not get out of the
> yard , any move towards a wall is disallowed.
> 
> 	So far what i tried is to take advantage of coordinate system.
> 	Rely on each items' pos() function with their image size , not so good
> anyway.
> 
> 	Does anyone has any good ideas ?
> 
> 	Appreciate any of your help ;-)

What you are looking for is QPainterPath QGraphicsItem::shape() const:

http://doc.qt.nokia.com/4.7-snapshot/qgraphicsitem.html#shape

Have fun!

Sean