Flash and ActionScript tutorials – flashadvanced

In this quick tutorial I will show you how to change the color of a Movie Clip using the Color Transform class and Math.random.

1. Open a new Flash CS3 document with size 400 x 100.
2. Create your logo on the stage. I made the Flashadvanced logo. Give it an instance name “logo_mc”.
3. Create a new layer called “button”. Take the rectangle tool and draw a rectangle for your button. Select it and convert it to Button symbol with instance name “change_btn”.
4. Now we move to ActionScript:

//we import transform classes
import flash.geom.ColorTransform;
import flash.geom.Transform;

//variable for the color value
var col:uint;
//creating a color transform object
var cTransform:ColorTransform = transform.colorTransform;

//when clicking the button we change the color
change_btn.addEventListener(MouseEvent.CLICK, changeColor);

function changeColor(e:MouseEvent):void{
	//random color value
	col = Math.random()*0xffffff;
	cTransform.color = col;
	logo_mc.transform.colorTransform = cTransform;
}

That was quick and easy, right?

This is the final result