[futurebasic] Re: [FB] Disposing of region handle

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From: Robert Covington <artlythere@...>
Date: Thu, 31 Jan 2002 14:44:29 -0500
>Hi Everyone,
>
>During animation, I check for collision by creating a region for one of my
>moving objects and rects for others with FN RECTINRGN.
>
>Is it safe to repeatedly call the following to create a new region each time
>the object moves or should I be disposing of the region handle before
>creating a new one?
>
>humRgn = FN NEWRGN
>OPENRGN
>SETRECT(rgnRect,gHumRect.left,gHumRect.top,gHumRect.right,gHumRect.bottom)
>FRAMERECT(rgnRect)
>CLOSERGN(humRgn)
>
>Any advice appreciated.
>
>Cheers
>Bernie

Like Tedd suggested, I would just dispose of it first.

if humRGN  <> 0 then DISPOSERGN(humRGN)

and go about your business.

There may be easier ways to handle what you are doing though.

If you are tracking sprites, you can just check the sprite's rects for
intersection at any given time using

hit = FN SectRect(testRect1,testRect2,iRect)

If your items are intersecting, then hit will be _True,  and the
intersecting area will be in iRect.

Otherwise, you will get a value if hit= _False.

This avoids the need to create a region.

Robert