Package	com.greensock.plugins
Class	public class DynamicPropsPlugin
Inheritance	DynamicPropsPlugin TweenPlugin

If you'd like to tween something to a destination value that may change at any time, DynamicPropsPlugin allows you to simply associate a function with a property so that every time the tween is rendered, it calls that function to get the new destination value for the associated property. For example, if you want a MovieClip to tween to wherever the mouse happens to be, you could do:

TweenLite.to(mc, 3, {dynamicProps:{x:getMouseX, y:getMouseY}});
function getMouseX():Number {
return this.mouseX;
}
function getMouseY():Number {
return this.mouseY;
}

Of course you can get as complex as you want inside your custom function, as long as it returns the destination value, TweenLite/Max will take care of adjusting things on the fly.

You can optionally pass any number of parameters to functions using the "params" special property like so:

TweenLite.to(mc, 3, {dynamicProps:{x:myFunction, y:myFunction, params:{x:[mc2, "x"], y:[mc2, "y"]}}});
function myFunction(object:MovieClip, propName:String):Number {
return object[propName];
}

DynamicPropsPlugin is a Club GreenSock membership benefit. You must have a valid membership to use this class without violating the terms of use. Visit http://www.greensock.com/club/ to sign up or get more details.

USAGE:

import com.greensock.TweenLite;
import com.greensock.plugins.*;
TweenPlugin.activate([DynamicPropsPlugin]); //activation is permanent in the SWF, so this line only needs to be run once.

TweenLite.to(my_mc, 3, {dynamicProps:{x:getMouseX, y:getMouseY}});

function getMouseX():Number {
return this.mouseX;
}
function getMouseY():Number {
return this.mouseY;
}

Copyright 2010, GreenSock. All rights reserved. This work is subject to the terms in http://www.greensock.com/terms_of_use.html or for corporate Club GreenSock members, the software agreement that was issued with the corporate membership.

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