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

[Aaron Lewis]

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On 05/05/2010 07:05 PM, Sean Harmer wrote:
> 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

Yeah , useful for setting a rectangle bound of an QGraphicsItem.

Thanks Sean.

> 
> Have fun!
> 
> Sean
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Best Regards,
Aaron Lewis - PGP: 0x4A6D32A0
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