I want to know the speed of the wheel when wheel is rotating

Question

I am rotating the wheel using tweenlite, below is the piece of code

TweenLite.to(wheel, 12, {rotation:720, immediateRender:true, useFrames:false, onUpdate:onTweenUpdate});

When wheel is spinning i want to know the wheel speed for some stuffs. Can i know the speed of the wheel when it is rotating?

Answer 1

Based on @DodgerThud's comment.. to avoid manual calculation you could put your numbers in int variables like so

num_rotation : int = 720;
num_time     : int = 12;
num_speed    : int = 0; //updates later

Then your tween code could look like..

TweenLite.to(wheel, num_time, {rotation:num_rotation, immediateRender:true, useFrames:false, onUpdate:onTweenUpdate});

Then like @BotMaster's comment said, inside your onTweenUpdate you could have..

num_speed = num_rotation / num_time; //update speed calculation