Exporting line end point coordinates?

Question

Hi,
I'm in desperate need of a script to export the coordinates of lines, or paths, it doesn't really matter, into a text document.
I've set my ruler up so the 0,0 is in the center of the image, because I need both 0,0 and -0,-0 to work for what I have in mind, basically using a document as a large Cartesian grid, which you can then extract coordinates of 'edges' or end points of lines from.
A little background on why I need it, for anyone curious. I figured out a way to build new worlds/maps for a game that generates terrain based on 'boundaries', which are drawn on, in a 2d plane, but I need coordinates to map these boundaries correctly. I could do it manually, where I'd hover my mouse over every edge or end of the line point, but this would save a LOT of time.
I'd be insanely grateful if anyone can help me out. I've tried looking for scripts or other software, but haven't been successful at all for what I really need.
The way I have my document setup is, 1 pixel per cm, 16384x16384cm. It's quite large, so most 'graph' software won't work for it. The grid itself works fairly well, I just need a decent way to export the coordinates from it.
Thanks in advance!
Edit:
Here, I made an example of a rectangle to give you guys the idea of which coordinates I'd need:
http://i.imgur.com/VILOwrL.png

Answer 1

Don't appologize, I was stuck on cm because I thought there wasn't another way, I only figured out after JJMack mentioned it, that it's possible purely by pixels.
First time working with coordinates, I'm in total new territory.
The above works great, except now I've stumbled across 2 new problems, sorry to make it so complicated!
What I have now, slightly tweaked what you gave me:
var dataFile = new File('~/desktop/exportData.txt');
var doc = app.activeDocument;
    for(var c =0; c<doc.layers.length;c++){
       doc.activeLayer= doc.layers[c];
var pathItem = doc.pathItems[doc.pathItems.length-1];
var dataStream = "";
for(var subPathIndex = 0;subPathIndex<pathItem.subPathItems.length;subPathIndex++){
    for(var pointIndex = 0;pointIndex<pathItem.subPathItems[subPathIndex].pathPoints.length;pointIndex++){
                dataStream = dataStream+doc.activeLayer.name+'\t';
        dataStream = dataStream+pathItem.subPathItems[subPathIndex].pathPoints[pointIndex].anchor+'\t'+'\r';
        dataStream = dataStream+'\r';
dataFile.open('w');
dataFile.write(dataStream);
dataFile.close();
But this outputs this:
Background     4222,0
Background     2963,-3550
Background     4330,-4210
Background     6450.3937,-2459
Background     6141,2387
Background     4834,2891
Background     3970,924
Which made me realize, that the paths aren't bound to a layer (It's been a while since I've used paths), so it'll just use the Background layer. There is no way around that, right? Since this script only targets layers, it'll ignore path names, which brings me to another question, is it possible to use the same thing, only for saved paths? So if you had 2 paths, one named P1 and the other P2, that it would display it like:
P1     4222,0
P1     2963,-3550
P1     4330,-4210
P1     6450.3937,-2459
P2     6141,2387
P2     4834,2891
P2     3970,924
And the other thing, because I'm using a loop now, which basically repeats the \r after ever coordinate, there isn't a way to collect all coordinates and display them in a chain, basically, and then using the \r after all the coordinates for one path is exported, before it moves on to the next path, or? Basically like the post previous to this, except with paths, instead of layers.
Thank you guys so much for helping me though, would been completely lost without it.