Detect individual Collisions

[Alain Bois]

There is my solution
I put the following script into a hide field
on mousestilldown
   set the loc of me to the mouseloc
end mousestilldown
on mousemove
   repeat with i = 1 to the number of graphics
     if intersect (me, graphic (i)) and i is not the number of me
     then
       set the textcolor of me to "green"
       exit repeat
     else
       set the textcolor of me to "red"
     end if
   end repeat
end mousemove

Call it field 1
and i put this script into the card script or stack script
on newgraphic
set the script of the last graphic to fld 1
end newgraphic

and after when I create a new graphic, when it has a collision with any 
object graphic it changes of color.

Le 29 févr. 04, à 12:26, jbv a écrit :

> Use the intersect fonction inside a repeat loop.
> I did something similar last year : the user was drawing
> a selection rectangle on the screen, and various objects
> were changing their bordercolor in real time if they were
> (or weren't) inside the selection rect. I was even able to
> implement multiple selection (using the shift key and
> comparing the current selection with a list of previous
> selected objects).
> Speed wasn't a roblem on a Mac 9600 / 300...
>
> JB
>
>> Hi there
>>
>> I'm trying to make a timeline-bar where you can add or delete 
>> rectangles containing "whatever". The user should be able to move a 
>> rectangle left or right, but if it collides with another rectangle, 
>> it should stop....
>>
>> Because the user is able to delete and add new rectangles I have to 
>> make some sort of function check if the moving rectangle is going to 
>> collide with other rectangles to the left and right. (like the 
>> timeline in Adobe Premiere) I know this is possible, but how do I do 
>> it fast..... Checking every rectangle with repeat is to slow.....and 
>> the only idea I have now is to make a list in a hidden field-table 
>> for every new created rectangle......
>>
>> any ideas....?
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