Brownian Trails

[Lindquist]

height=240 width=320

I was wondering what combining Brownian Motion and Trails would create. Turned out pretty nice.

Enjoy ;)

-L

[amitgeorge]

define Brownian Motion for the dumb (like me)

[Lindquist]

It's random motion discovered by a guy named Brown. Brownian motion usually refers to things like dust that moves randomly in a glass of still water because the molecules (that are constantly in motion) in the water knock the dust around.

tu comprends?

define Brownian Motion for the dumb (like me)

[amitgeorge]

oui je

[Krilnon]

Eh.... but the movement in Flash isn't brownian motion.

[Lindquist]

That's like arguing that the movement in the gravity tutorials isn't really gravity... Are you trying to make a point or something?

Eh.... but the movement in Flash isn't brownian motion.

[Krilnon]

I don't know, but it just sounds like you were trying to make a cool name for it, but I think random is a better descriptor. In the case of the gravity-in-flash tutorials, can you think of a more fitting name? (Then it would be most helpful for it to be named that)

I think brownian motion was first explained in cells, no?

[Lindquist]

There is a difference between the motion in my movie and the random motion normally presented on kirupa.

The majority of random motion tutorials focus on finding a random point to move to and then moving to that point.

My example travels at random increments and directions.

Brownian Motion - "A stochastic process in which the random variable moves continuously and follows a random walk with normally distributed, independent increments."

[Krilnon]

Hmm.. Your reasons for naming it that make more sense now, I hadn't scrutinized your code as the motion doesn't look that different ( though looking at it more closely, it does seem different) :)

You could make invisible particles fly around the stage and their collision with an object could cause it to move :P

[thehappyappy]

height=240 width=320

I was wondering what combining Brownian Motion and Trails would create. Turned out pretty nice.

Enjoy ;)

-L

That looks really cool. I'm trying to create a fluid motion of the buttons in my movie (http://www.lucyohara.talktalk.net/menu.swf). I've addedportfolio.onEnterFrame = function () {
this._x += (5*Math.random()-1);
this._y += (5*Math.random()-1);
}
to the keyframe of my movie, but it seems to just jump around rather than float. I'd be extremely grateful if you could offer me any help.
Thanks

[Charleh]

The reason for that if because you are just setting the position of the object to the same position + random increment every frame.

You are not really moving it anywhere just randomly jiggling it around every frame..

[thehappyappy]

Sorry to be so stupid, but how would I go about doing that?

[Charleh]

You need to add increments to the objects velocity - not the actual position. Check out the source in the experiment above. It's simply a case of adding a small value to the velocity of the object every increment, then you won't get jiggling, but a smoother motion which will appear quite random.

You just add the velocity to the x/y position each frame after manipulation and that should be it

[gonzolo]

lol seem's my brain just played a trick on me :P i thought it was interacting with my mouse :p turns out i was just following it around :P

look's good :D

[thehappyappy]

I'm reaaly sorry, I still don't follow. Do I add it to the object itself or the keyframe? and do I just need to modify the code I've got or completely re-write it? I'm quite new to ActionScript and am trying to uild this site for my husband.