This plugin allows you to define an array of Points at which the target should be positioned during the course of
the tween (in order). So if 4 Points are in the array, the target will be rendered at the first Point's x/y at the
beginning of the tween, then at around 25% through the tween, it will jump to the 2nd Point's position, etc. until
it arrives at the last Point's position. The array can be populated with any object that has x and y properties
(they don't need to be Points - they could be generic Objects).
USAGE:
import com.greensock.TweenLite;
import com.greensock.plugins.TweenPlugin;
import com.greensock.plugins.Positions2DPlugin;
TweenPlugin.activate([Positions2DPlugin]); //activation is permanent in the SWF, so this line only needs to be run once.
TweenLite.to(mc, 3, {positions2D:[{x:250, y:50}, {x:500, y:0}]});
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