ActionScript 2.0 :: About TweenMax And Easing Equations?
Jul 1, 2008
im a former user of FuseKit, for the time being as i like more the performance of TweenMax over Fusekit, but i got used to the flexibility of Penner Easing Equations, is there a way to use them on TweenMax?
I tried fl.motion.easing.* seems to have all of the penner equations Expo, Sine, etc.So, is there a way to use them with TweenMax?maybe im not writting the syntax correctly i dont know here is my piece of practice code
Code:
import gs.*;
import mx.transitions.easing.*;
import fl.motion.easing.*;
function moveSq() {
[code]...
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Nov 18, 2004
I am just wandering how do I use the equations I downloaded from robertpenner. Whenever I try even working out of the book I get error messages like
**Error** Scene=Scene 1, layer=Layer 1, frame=1:Line 350: There is no method with the name 'easeOutBounce'.
return(Math.easeOutBounce(t * 2 - d, 0, c, d) * 0.500000 + c * 0.500000 + b);
Why does it say there is no method with the name bounceEaseOut. How I can use these in my flash movies.
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Sep 6, 2001
Virtually the only dynamic ease-tweening you ever see in Actionscript is the ubiquitous "exponential ease-out." You know, the Zeno's paradox, go halfway every time, Barney's menu method:
distance = finalX - _x;
_x += distance / 2;
It's wonderfully simple and easy to code, but it lacks flexibility. You can choose your destination, but you can't specify, "I want to get there in 40 frames." Also, easing *in* with the same method is not so easy. There are many mathematical approaches to calculating an eased tween. I've derived some easing equations using three different curves: quadratic, sinusoidal, and exponential (as well as a trivial linear equation). Each of the three curves has its own particular "style" of easing; it's quite fun to compare their aesthetics.
All of the equations allow you to specify the beginning value, the change in the value, the duration of the tween, and the current time. Note that the equations will work for both frame-based and time-based animation. That is, duration and current time can be either frames or seconds/milliseconds.Here are the quadratic easing equations. I'll post the other two sets soon.
Code:
// simple linear tweening - no acceleration
// t: current time, b: beginning value, c: change in value, d: duration
Math.linearTween = function (t, b, c, d) {
[code]....
Right now, the equations are all set at "maximum easing", analogous to an easing setting of 100% in Flash's Frame panel. It is fairly simple to adapt the equations so you can specify an easing percentage. Personally, I almost always use 100% manual easing within Flash.
[URL]
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Nov 18, 2004
I am just wandering how do i use the equations I downloaded from robertpenner.com. when ever i try even working out of the book i get error messages like **Error** Scene=Scene 1, layer=Layer 1, frame=1:Line 350: There is no method with the name 'easeOutBounce'. return(Math.easeOutBounce(t * 2 - d, 0, c, d) * 0.500000 + c * 0.500000 + b); Why does it say there is no method with the name bounceEaseOut Can someone tell me who i can use these in my flash movies. I tried everything out of his book and i still get it wrong.
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May 19, 2003
But looking at the function below, how would I apply it to an MC to move its position.
// simple linear tweening - no easing
// t: current time, b: beginning value, c: change in value, d: duration
Math.linearTween = function (t, b, c, d) {
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Feb 25, 2011
im trying to create this custom menu a bit more efficiently. As written, it operates fine glitch free. However, id like to incorporate some easing into the movement of each movie clip.
[code]...
how to incorporate tween classes and then easing?
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Jan 15, 2009
I've built a code to cyclically move a scene on the bottom of my stage; I've done this to make a slowing-and-stop-easing effect at anytime the command will arrive. The entire scene mc is _x long something like 6000 px. The whole code goes in this way:
1) importing on the stage (with attachMovie) a mc with this code inside:
onClipEvent(enterFrame) {
_parent._parent.fondo_mc._x -= countermovement;
if (_parent._parent.fondo_mc._x <= -5800) {[code].....
The code goes right, but I need to improve it.Now there is just a variable, I tought to use two vars to implement the whole code in a setInterval, but maybe it's unuseful, and actually I can't use it in the right way.
Second issue: actually when slowAndStop function is called the scene slow too fast, if I take it to 15 it slow better but the scene is running too fast...
The best would be that the scene slow down and stop following: A) a temporal variable (and I can try to implement it with setInterval, that for istance is a cycle)
B) an indipendent moving variable, so that on one side I set the speed, on the other side I set the slow-and-stop in a matter of time with countermovement.I also tried to use a second variable:
var counter:Number = 15;
// set the _x increment
var countermovement:Number = counter/2;
but the scene slow and goes backward a bit
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Jan 12, 2009
I'm familiar with how to ease something in using motion math. Easing out would not be that bad either. But how would I script something easing in half way, then easing out the second half? It would start slow, gradually move faster, then slow to a stop at the end. - almost like a sine wave I guess?
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Jun 18, 2010
I would like do draw a 2nd degree eqation using actionscript. How would i do that? With curveTo?
(Lets say i want the equation y = 3x^2+3x+5 displayed)
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Feb 2, 2004
I have about 15 movie clips in a movie that i want to scale with ease.Ive tried doing this a number of different ways.all of which have woked but they severely slow down the perfomance of my site.ideally i would like to use penners equations.I want to have a function on the first frame of the main timeline. i.e
PHP Code:
#include "easing_equations.as"[code]..........
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Feb 13, 2011
I am working with this function that moves an object around a center point in a perfect circle and am trying to modify it to move it in an oval shape that is 1/2 as high as it is wide?
Basically, I have a set speed
var myVelocity:Number = 0.25;
Then I calculate my Sine and Cosine based on the speed
var myCos:Number = Math.cos(myVelocity);
var mySin:Number = Math.sin(myVelocity);
Then I figure the distance of the the object from a fixed center points along each axis and
var x1:Number = myBall.x - centerX;
var y1:Number = myBall.y - centerY;
var x2:Number = myCos * x1 - mySin * y1;
var y2:Number = myCos * y1 + mySin * x1;
myBall.x = centerX + x2;
myBall.y = centerY + y2;
I have another function that figures x and y based upon myBall.x = centerX + cos(angle) * radius; that is easy enough to modify the radius to become an ellipse, but is there an easy way to mod the one above to become an ellipse? I want to do this to be more efficient with the code and reduce the number of math function calls
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Feb 17, 2005
use Robert Penner's tweening methods? I have all the files. I understand that at the top of the actions you do include# tween.as or something like that (I just had to reformat my powerbook and haven't loaded the files back on yet to look at exactly what that line of code is).
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Jan 8, 2004
"256 levels of recursion were exceeded in one action list." I've been trying to incorporate one of R.Penners equations into a prototype. it works, but appearantly not 100% scratch scratch
Here's the code. 'tester' is an MC instance
Math.easeInOutExpo = function (t, b, c, d) {
if (t==0) return b;
if (t==d) return b+c;
[Code]...
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Feb 17, 2005
way to use Robert Penner's tweening methods? I have all the files. I understand that at the top of the actions you do include# tween.as or something like that (I just had to reformat my powerbook and haven't loaded the files back on yet to look at exactly what that line of code is).
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Apr 18, 2006
I have a need to build many Algebra and Geometry equations in Flash. I am looking for some kind of flash plugin that will typeset these equations so that I don't have to build them by hand. For instance, if I had a fraction 1/2 or 134/489 and I was stacking the numerator over the denominator, the fraction line would adjust to the length of the longest number.
I know that the InMath plugin works like this for InDesign, but the formatting breaks in the few file types that are able to be imported into Flash. Is anyone aware of such a plugin made specifically for flash?
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Jan 12, 2009
Wondering if anyone can tell me whether it is possible to take an excel spreadsheet with its equations and all and place it into a Flash file so that it can work within the flash presentation.
Or would the only way to do this be to code the whole thing into flash from the start?
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Jan 21, 2010
create a random subtraction equation where the result will always be positive? For example, my current scripting will return something lilke 3-6=-3. I don't want equations like this- only postive answers
//random numbers//1.function randomNumbers(min:Number,max:Number) var Results:Number=Math.floor(Math.random()*max)+min; return Results;}
//2.new_mc.addEventListener(MouseEvent.CLICK, showRandomnumber);
[code]....
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Jan 25, 2005
I have five simple equations that I need help converting to ActionScript. I'm making a small "calculator" that takes input from the user and displays a number representing the result of the equation. They're two sets of equations: 1) three-scenario fee calculator to compare the annual costs (X) of renting versus buying equipment; 2) comparison of two rental plans. The numbers entered need to stay the same - the alphabets represent what the user will input. The equations are as follows:
Scenario 1:
X = ([A � F] / G) + H + I + J + (K x 12) + ([L / N] x M)
Scenario 2:
X = ([B � F] / G) + ([E x C] / G) + H + I + J + (K x 12) + ([L / N] x M)[code]....
I've looked at my resources at hand, but my brain just shuts down when I see numbers and letters representing numbers. I do speak three languages fluently, so I (think) I make up for it.how to properly assign the correct order of events (brackets first, etc) in ActionScript to reflect the equations above.
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Apr 16, 2011
Possible to program to gaph quadratic or exponential equations uisng flash.
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Mar 5, 2008
I have (what should be) a really simple little piece of code inside a moviclip, trying to get it to fade in and out in a loop. Here's the code (within the movieclip):
Code:
import gs.TweenMax;
this._alpha = 100;
[code]....
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Sep 25, 2009
after i try to use it and publish as SWF, it not function and get error-->1172: Definition gs could not be found. only i realize that need a folder like a classes and import it. this is the website i found [URL]
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Feb 10, 2011
I'm still relatively new to Java and Android development, so I'm still unfamiliar with the multitudes of libraries available for use, particularly for animation. Where I'm from (the Flash world), we have access to several 3rd-party tweening engines that make life very easy for us when we want to programmatically move things around the stage without relying on the (vastly inferior) built-in Adobe tween APIs. One of the most popular is Greensock's TweenMax
Looking at the way Android handles tweening natively, it appears to be very cumbersome compared to what I'm used to. I'm curious if there's a TweenMax-equivalent library out there for Android that makes animation sequencing equally easy to write in-code, with the benefits of smart intellisense, rather than having to write them all out in an external animation.xml file in the res folder.
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Jan 11, 2010
I'm using Greensock's frameworkand everything worked fine until I tried to use one of the plugins. I'm just trying to get the bezier plugin to work on a single movie clip. My code looks like this:
var flakeMC:mcFlake = new mcFlake();
flakeMC.x = 12;
flakeMC.y = 12;
[code].....
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May 4, 2010
I have a tween (code on main timeline) for a mc and on hitTest (code on mc) its supposed to stop, but it doesnt. This is the code on the mc:
Code:
onClipEvent (enterFrame) {
if (this.hitTest(_root.rivalMc)) {
[code]......
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Jun 17, 2011
i'm pretty new user with TweenMax and i have simple question. Usually using flash built-in TweenEvent i could get the object that is tweening, using e.target.obj. But then apparently i couldn't do it if i use Greensock TweenEvent, because it seems unable to retrieve the object as the property "obj" could not be found.
What should i write that is equivalent to "e.target.obj"?
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May 7, 2009
I have two pics (pic1 & pic2) and I want them to fade in and fade out between each other forever.so basically I want this effect to repeat forever (pic 1 is currently on a higher layer than pic 2 so that it is the only picture that needs to fade in and out, but I'm sure this is not the best way to do it, especially if I add pic3):
TweenMax.to(pic1, 0, {alpha:0});
TweenMax.to(pic1, 1, {alpha:1, delay:5});
TweenMax.to(pic1, 1, {alpha:0, delay:10});
[code]....
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Mar 10, 2009
So, the good news is that I've got this about 90% solved. Anyway, I'm trying to use TweenMax to have a drop shadow fade up on a Mouse Event (on a roll out). Everything works fine except for the shadow color. I've got it set to black (0x000000), but it's making a shadow that's the same color as the menubar sprite it's trying to shadow.
In other words: I've got a bright blue menu button, and it's giving it a bright blue shadow, despite the fact that I've got the color value set to 000000. Basically, I've got some code to put together the parts of the menubar (size, shape, text, shadow, etc.)
[Code]...
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May 12, 2009
Code:
base_scale = 70;
my_scale = 1;
scale_mod = 30;
[Code]....
EDIT: In fact, it is working now (behavior changed with updated TweenMax...?!), BUT still, when I zoom with mouseclick, everything goes well. When I zoom with a keypress, the image is resizing... but if the image is not centered, the registration point (set to center of the image) - the image is moving - for no reason...
Different results with the SAME function, no parameters etc.
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Nov 11, 2009
I'm trying to get onComplete (frame 5 in this case) to skip to a given frame after a series of animations. Here is what i have written so far. Shouldn't this work?
stop();
import gs.TweenMax;
import gs.plugins.*;
[code].....
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Jan 6, 2010
This may look like a long post but you may not have to read throught the whole thing... I have created a textfield within a loop and put it in a sprite called textHolder. I loaded images in the same loop and put them in a container called imageHolder. The containers are assigned to the buttons button created by the loop. This works all great. But the thing that I am having trouble with is being able to tweenMax one of the holders. for example:
I have a tweenMax that scales b1 (the first buttons created from the loop) by 3x. But I also need the text to fade out without the image fading out. So I tried just putting a tween on textHolder but nothin' happens! Maybe there is some rule here that I am missing that says I cant do that? If not, I dont know what I am doing wrong. here is some of my code:
[Code]....
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