Thanks for the help all!
rinceWind
I am unsure where to try those update commands, every place I have tried has left me with a 'deep recursion' error

eric256<bbr> Good Idea though I think I will have the same problem doing the client server technique I suggested to liverpole for that project.

Zentara
Besides a great example zinc code (cool! thanks!) I think you have hit the problem on the head. The unfortunate problem is, I 'am' doing just that. At least as far as the original concept is concerned. @dispGrid is actually recording the id of the line going over that pixel. Later, if another line (not in this smaller example) walks over a path, it uses @dispGrid to erase the pixel and re-draw the new one, re-recording the ID. Remove the following section from the above code 

  if ($dispGrid[$by][$bx]{"colored"} == 1) {
      $bots{$bid}{"newX"} = $bx+1;
  }

[download]
which will move the bot over one position if it hits something already walked upon. Re-run and after they make one full screenwidth the ids stop accumulating.
I really wanted to walk a line one pixel at a time, so every pixel is, unfortunately, a seperate, persistant line segment. The items never 'go off the canvas' they wrap around and continue (or potentially bounce). So this little project may be just too 'big' for Tk's abilities to handle??

Thanks for the help!!

s&&VALKYRIE &&& print $_^q|!4 =+;' *|

In reply to Re: Problems with Tk freezing by wulvrine
in thread Problems with Tk freezing by wulvrine

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