[Req] Sprite crop param (e.g use ext spritesheets)

Hi, this is a follow-up to this topic

I'm on a project where I need to load external sprite sheets for the main character, and because the player can choose between thousand of them, I can't really use the built-in sprite strip importer...

Here is the upgraded sprite component I need:

<img src="http://i.imgur.com/gW4Mc.png" border="0">

To do this:

<img src="http://i.imgur.com/vlXiQ.png" border="0">

Then I just have to load images from URLs into the sprite, and change the "Crop origin" parameter through events to create my animation from scratch.

If you follow the link I posted above, I made a working prototype using an animated "mask" with blend modes instead, but it's not that good for performance, and adds a bunch of problem with layer ordering.

Now I don't know if this is possible with a plugin, but it could be quite powerful for a few other stuff, like loading enemy sprites as the player progress through levels, or opening new animations possibilities

I'll just bump this and paste the link to my "workaround mask" demo here directly

SpriteAnimDemo.capx

TOP LAYER

• props sprites unaffected by the mask

MASK LAYER (+ force own texture YES)

• bg sprite (+ SOURCE OUT blend mode)
• mask area

BG LAYER

• character sprite
• bg sprite

As you can see, one of the main problem, beside performance drop, is that I can hardly move the character layer on top of any props without dedicated crop tools...