Node based expression editor

I took this the example I did here:

http://www.scirra.com/forum/how-would-i-go-about-drawing-arrows-between-boxes_topic60508_post371509.html?KW=#371509

...and extended it so I can add/destroy nodes and change the values of nodes.

Here is a screenshot of a setup that make the car move forward and rotate.

<img src="http://dl.dropbox.com/u/5426011/examples16/node_screen1.PNG" border="0">

Here's the capx, the art is programmer art so it's very ugly:

http://dl.dropbox.com/u/5426011/examples16/nodes2.capx

Left click to drag nodes and lines.

Right click to open context menu.

What would be the purpose of those ?

The purpose of the setup in the image?

It equates to these 3 actions to move the car:

Set x to car.x + 4*cos(car.angle)

Set y to car.x + 4*sin(car.angle)

Set Angle to car.Angle+1

Or do you mean the purpose of the capx itself?

It's mainly for my own amusement.

R0J0hound, what an amazing piece of work! I can't believe I missed this before.

Your example relates directly to something I'm working on. I hope you don't mind if I shamelessly appropriate your hard work. <img src="smileys/smiley4.gif" border="0" align="middle" />

If that's the case then here is an updated version that is easier on the eyes among many other things:

http://dl.dropbox.com/u/5426011/examples16/nodes3.capx

FYI the nodes evaluate somewhat like a circuit so values can take time to move through the nodes.

What's your project about?

R0johound..... this.is.so.cool.

Thanks R0J0!

Awesome example.

Too bad we can't save to xml. Seems that would be perfect for a save state.