ActionScript 3.0 :: Understanding Basics Of Random Motion
Apr 15, 2011
I started out learning AS3 on my own a while ago without any programming experience whatsoever. I'm still in my diapers, but slowly progressing. Currently I'm working on a short animation with some code involved. Part of the animation is a herd of cows grazing in a pasture. I have a class called Cow which extends MovieClip and on the Cow timeline I have the walk cycle and other cow movements animated. When a cow is walking it slowly moves horizontally, along the x axis. I want the cows, when walking to also randomly move up and down (along the y axis) which would basically look as though the cow is moving further away or moving closer towards us. I'll be resizing each cow, according to its y position to create the effect of perspective (near and far).
What I'm trying to figure out is how to make the cow move either up or down the y axis in a somewhat random way. By "somewhat random" I mean that I don't want the cow to switch directions every second, but rather something like: 5 seconds moving up the y axis, then maybe 8 seconds moving down, then possibly 4 up, then 11 down, etc. It would be super if I could also have a velocity factor involved, meaning that when changing directions - from up to down, or down to up - I prefer that the change is smooth, like as in a ease out and then ease in.
I need to dynamically bind properties of components created at runtime. In this particular case please assume I need to use bindProperty. I don't quite understand why the following simplistic test is failing (see code). When I click the button, the label text does not change. I realize that there are simpler ways to go about this particular example using traditional non-dynamic binding, but I need to understand it in terms of using bindProperty.
I have a script that produces random motion along the y axis, however, I want that motion to occur within the movie clip that is centered on the stage, or I should say within the bounds of that movie clip. The movie clip has a height of 335 px
I did the random motion tutorial (mx version) on kirupa, and it isn't working the way I expected. I made a new movie clip that consists of a simple white dot, and put did everything else. When I start the movie the white dots jump around rather than moving smoothly.
I've cut and pasted the random motion tutorial code into my movie, and for some reason the movie clips that are moving migrate to the bottom right off the movie, off-stage. I've tried setting the registration point of the movie to the upper left, but that didn't help.
i am trying to to the above. I have two items on a stage and i only want them to move with in a certine area and bounce off each other when they meet. I found a good random movement code on this site...here is what i have:
onClipEvent (load) { //data you may want to change width = 425;
I have been trying to tweak the random motion tuts here. What I want to accomplish is a round motion of a clip lets say a sparkle, but I want to appear that it is floating like driven by the wind. I know this sounds crazy but is it possible?? and if yes does anyone have a snippet or a tut I can check out?
I'm trying to create a flash demo for my prof and we want green dots to move randomly across the screen without ever overlapping each other.I saw the kirupa tutorial on random motion which is really good. I'm wondering if I can add something to the code so that the dots won't overlap, (as soon as one touch another they move away) as they move.
The random motion tutorial works just perfectly with one movieclip, but when I try to make a new movie clip and assign the same code to it, it really doesn't duplicate at all. The original movieclip has an instance name of dot so I created a new movieclip with instance name of dottwo.But for some reasob the following code doesn't duplicate the dottwo at all
i = 0; while (i<25) { dot.duplicateMovieClip("dot"+i, i);
I am using the random motion code found here at Kirupa. [URL]I have the code working fine but I have a question about fixing it to my needs. The way it is now, you change the height and width variables so that the objects don't move off the screen. This works fine, if you are using the whole screen area at:
Attached is a fla that moves an image around in a hovering/floating effect. The instructions say to change the parameters to customize. I can't find the accelfactor variable to change this.
Im tring to create a slot machine game...I have a mask.and I have 3 layers each of which has a motion tween of 120 frames.they animate my 3 slots..the problem is how and where I can assign a random number so that the motion tween should stop at any image.?
I am looking to add some life to this graphic in flash: My goal is to have the "Hey Jude" element drop into frame and be suspended by the two strings that are attached to it. i.e. similar in fashion like a swingset
I have looked all over the web but have yet to find any leads/tutorials on the matter.I would also like this element to be physics based so that the motion is random and when the element is moused over it responds to the action.
I have a random motion script that I need to remove when the object in random motion hovers over a specific area in the background. I need the object to just keep moving in the direction it was going in and not randomly switch directions or bounce.This is my script for the random motion which is on the object:[code]
i'm using the an actionscript for random movement that i found here... [URL] but my problem is that i need the object to flip horizontally depending on the direction it is moving... the object that is moving around is a bug, and i need it to face left if it's moving left or face right if it's moving right.
var i:Number = new Number(); trace("showarray length" + showArray.length); for(i=0;i<showArray.length;i++){[code].....
wherenever the if is satisfied it stops looping it immediately goes out of the loop.this is a sample output given that the length of showArray is 2 and num = 0
I'm trying to make flash animations w/ text. I don't know how to make buttons though so I can advance the movie. I really have NO idea so I need details on EVERYTHING past opening up a new as3 document.
I am only at the very beginning and I want to make certain that I go through this understanding everything that can so maybe I won't have to ask as many questions in the forums and can start answering more. In this part:The code for making a standard generic object in Flash is as follows:
myObject = new Object();
The variable myObject then becomes a object variable which can then have more variables added to it using dot syntax like so.Is myObject the actual name of the variable and the = new Object simply stating that there is a new object called myObject?
I've been trying out Flash Builder for the first time and I can't seem to get it working...
First off I have these bits of very basic code:
[Code]...
Another key problem: Flash Builder cannot connect to the debugger, even though I've installed it twice now.Can anyone help me here? I've made sure my firewall is off, but could this be causing problems?
I'm trying to get to grips with having a function that can accept an input that is passed to it as it is called, and then use that input in its workings.As I'm writing more code, it's becoming clear that this is something that I need to pick up, but despite reading and playing about with it, I'm still a little confused.The code is designed for a character's "level up" screen. When the button next to a stat is pressed, I want it to pass the name of that stat to the statUp function, which will increase the selected stat by one.In my main file I have this code, to call the function when the button is pressed. (In this example, it is the Strength button)
I was pretty good at 2.0 but 3.0 has completely lost me. I've been reading up on it and getting a handle on it, but in the entire Actionscript 3 BIBLE I have not been able to figure out the simplest, key part that links it all together. How, in the name of everything that's holy, do I communicate between the stage and the "ever-necessary, more secure, more robust" AS files I'm creating? I wish I could give specific code, but I'm just looking for the guideline. If I create a function in a class, I can't call it in the timeline or a button, or even a line down from it in the AS file (call to possibly undefined method).
If I create a sprite in my AS file and then try to add it to the stage, addChild is an undefined method or function. If I create a movie clip in flash, export it for actionscript, it's undefined in my AS file. Just show me how I can write a super simple program where the thing on the STAGE interacts with the thing in the AS file, and I can take it from there.
but when I rollover a list item I get: TypeError: Error #1009: Cannot access a property or method of a null object reference. at as3xml_finished_fla::MainTimeline/itemChange()
I've just been following the Basics of Papervision3D tut, which is very good by the way, the only one I've ever managed to get working.And I'd like to write the code as a separate as file, but I'm having a bit of trouble.In the class definition, what should it extend?[code]I tried everything I can think of and looked at other tuts to see what they've done but nothing works.
I've been trying all day to get the Papervision3D Collada Basics tutorial to work and every time I run the file I end up with an empty black screen. No matter what I've tried i cannot get anything to show up. Finally I had the idea to download the source files from the tutorial and run those 'as is' without changing anything. When I opened the SWF created by Lee, all i saw was the same blank black screen. Has anyone else run into this? All other Flash files seem to be fine,
I've been reading through all the various threads related to the drawing API and saving drawings. About a hundred times I've seen mention of "log mouse positions into an array" and stuff like that, but I can't find any clear and simple examples of how to do this.
Let's take a very simple use of the drawing object to do freeform drawing. What is the AS to capture the mouse XYs as the user draws and put that into an array. I can't figure out how to get Flash to keep updating things as I go, it invariably grabs the fist point and that's it. Could one of you AS gods just write out a super simple routine for this? I know I'm not the only one that needs this (as it seems to be asked every week) Let's use the most basic drawing example I can find:
This may be a bit of an easy question for some, but I'm having difficulty understanding what mc.name.slice(5,9) does. What is this name slice bit about?
