Distance from boundry

[ericflash]

I have a clip that needs to fade out, as it gets closer to a boundary.
I have the boundaries set in and object called __bounds

	public function setBounds(b) {
		__bounds.top = b.yMin;
		__bounds.bottom = b.yMax;
		__bounds.left = b.xMin;
		__bounds.right = b.xMax;
	}

I also have a mc traveling at a specific velocity
Each clip has a random velocity

_x+=__vx
_y+=__vy

What I’m trying to do is create a function in my class to figure out
If my clip is within a 20-30-pixel distance of its boundary then fade out according to the speed it is coming towards the boundary.

I set up a function to fade if it was within 30 pixels of its boundary but the problem was to fade it according to the speed it is coming towards the boundary so it has totally faded out as it hits its boundary.

Can anyone explain how to do this?

Thanks

[Swim'nSasquatch]

This code will change the alpha property of an object according to its distance from a boundary. At the beginning it will have 100% alpha and 0% at the end. The faster it goes through this section the faster it will change.

MX is the maximum x value
FS is the fade start x value

this.alpha=(-100/(MX-FS))*this._x+(MX/(MX-FS))*100;

I hope this helps.