More efficent checking of multiple objects

[David Burgun]

Hi,

Here's something I did that you may be able to adapt. In my case they 
objects are rectangles and the label/name field is not displayed. 
Also all that needed to happen was if the rectangle was clicked, an 
action specific to that rectangle had to be performed. To do this I 
did the following:

Setup an array that has the key being the (long) name of the button 
and the data as the value of being an object-specific field.

If the user re-ordered the rects all that needed to be done was to 
swap the data field of the Array between objects, e.g.

Given the following Rectangle List:

R1,R2,R3,R4,R5,

The Array would look like this:

"R1",VALUE1
"R2",VALUE2
"R3",VALUE3
"R4",VALUE4
"R5",VALUE5

if user changes the position so that R5 comes after R2

R1,R2,R5,R3,R4,

"R1",VALUE1
"R2",VALUE2
"R3",VALUE5  <-----
"R4",VALUE3
"R5",VALUE4

So all that is done is to move VALUE5 into R3, VALUE3 into R4 and 
VALUE4 into R5.

Then in the mouseUp handler for each rectangle:

on mouseUp
put theArray[the name of me] into myValue
put DoMouseUpInRect(the name of me,myValue) into myResult
end mouseUp

You could do the same using custom properties for each object, but I 
found this harder to maintain and debug.

Don't know if this would help in your case, but maybe you can adapt the idea.

All the Best
Dave

>Dear Jan,
>
>>I use a repeat with T=1 to (the number of buttons of group "Timeline")
>>because I need to reorganize all the other buttons if the user 
>>moves just one of them.
>>
>>In the future the user can have up to 1000 of these buttons in the 
>>timeline. At this point I guess the repeat loop will be very slow.
>>
>>Is there a more efficient method I can use here?
>
>If the user eliminates or changes button x, is there any need to 
>adjust buttons 1 through (x-1)?  If not, you can start T=X to (the 
>number of buttons of group "Timeline".  It won't help much if the 
>target is button 1; but it should help lots if the target is button 
>999.
>
>If the relationship of the buttons is different such that action on 
>button x can require changes to buttons 1 to (x-1), I'd need to know 
>more to offer further suggestions.
>
>Rob Cozens, CCW
>Serendipity Software Company
>
>Vive R Revolution!
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