Random position (no smooth motion)?

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Random position (no smooth motion)?
by Filip Nordling on Jul 23, 2012 at 7:17:33 pm

Hi there,

I am trying to make a layer to randomly move position around the screen (even off screen), but with no smooth motion. Basically at one second it should be at x=500 and the other second at x=1250. But it should stay at x=500 until that second has passed to the other. It should be like a blink, and not move to x=1250 during the milliseconds. See what I mean? So no movements, just randomly position itself to another random place on the screen during random seconds.

Thanks in advance,
Filip

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Re: Random position (no smooth motion)?
by Dan Ebberts on Jul 23, 2012 at 7:36:58 pm

This should give you a new x position between 500 and 1250 every second:

minX = 500;
maxX = 1250;

seed = Math.floor(time);
seedRandom(seed,true);
x = random(minX,maxX);
[x,value[1],value[2]]

Dan

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Re: Random position (no smooth motion)?
by Filip Nordling on Jul 23, 2012 at 7:41:51 pm

Thanks for the quick answer!

In addition, is there a way to also control the amount of time it should take until it swaps to another position? I believe it's just a minor change in your code, but I'm not sure which...

Thanks again!

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Re: Random position (no smooth motion)?
by Dan Ebberts on Jul 23, 2012 at 7:59:16 pm

Well, not a minor change, but this should do it:



minX = 500;

maxX = 1250;

minDelay = 1;

maxDelay = 5;



tEnd = 0;

n = 0;

seedRandom(n, true);

while (time >= tEnd){

  n++;

  seedRandom(n,true);

  dur = random(minDelay, maxDelay);

  tEnd += dur;

}

x = random(minX,maxX);

[x,value[1]]

Dan

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Re: Random position (no smooth motion)?
by Filip Nordling on Jul 23, 2012 at 8:09:26 pm

Awesome, thanks!

Last question. The Y position. I'd like to do the same thing there, but somehow it doesn't do anything to Y if I add another line with the same code as the X ones. How come?

Thanks

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Re: Random position (no smooth motion)?
by Dan Ebberts on Jul 23, 2012 at 8:24:42 pm

Like this maybe?





minX = 500;

maxX = 1250;

minY = 0;

maxY = 1000;



minDelay = 1;

maxDelay = 5;



tEnd = 0;

n = 0;

seedRandom(n, true);

while (time >= tEnd){

  n++;

  seedRandom(n,true);

  dur = random(minDelay, maxDelay);

  tEnd += dur;

}

random([minX,minY],[maxX,maxY]);

Dan

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Re: Random position (no smooth motion)?
by Filip Nordling on Jul 23, 2012 at 8:34:43 pm

Yepp, that's it!

Thanks a ton!

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