On 23 Apr 2005, at 00:57, [EMAIL PROTECTED] wrote:
I don't believe that mega-IF statement is truly necessary. Try this instead:
on mouseMove X,Y put the rect of fld "container" into Fred put min (item 3 of Fred - 4, max (item 1 of Fred + 4, X)) into X put min (item 4 of Fred - 4, max (item 2 of Fred + 4, Y)) into Y set the screenMouseLoc to (X,Y) end mouseMove
If the mouseLoc is within the specified rectangle, the mouse's X co-ord
will be less than item 3 of the rect, and greater than item 1 of the rect. Thus,
max (item 1 of rect, the mouse X) will always result in a number *at least*
as large as that item 1, and min (item 3 of rect, the mouse Y) will always
result in a number *no greater than* that item 3. Plug the results of the max into
a min (sorry about how that sounds, but you get the idea, right?), and you
end up with a number that *must* be somewhere between item 1 of the rect and
item 3 of the rect.
Something similar applies to the mouse's Y co-ord, and items 2 and 4 of
the rect.
Hope this helps...
Yeah it is a nice idea.
But to make it work fluently you'll have to add at least 1 if statement and adjust the screenmouseloc coordinates by adding the left and top of the stack to x,y respectively. Otherwise you'll end up with a "constrain out of the card by jump off the left side", which people with significant motor skills problems won't really appreciate. Without the if statement the x,y coordinates will be set continuously which makes it very slow and jerky, at least on my slowbook.
on mouseMove X,Y
put the rect of fld "container" into Fred
if x,y is not within Fred then
put min (item 3 of Fred - 4, max (item 1 of Fred + 4, X)) into X
put min (item 4 of Fred - 4, max (item 2 of Fred + 4, Y)) into Y
set the screenMouseLoc to (left of this stack +X,top of this stack + Y)
end if
end mouseMove
Greetings, Wouter
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