Ultra simple projectile spell

[~Void~]

So it's been a million years since I've used JASS. I looked around for a projectile system for a little map I'm working on, but the ones I've found are waaay too complex for me to even use.

All I need is an ability that shoots a big ball of frost forward (in the direction the unit is facing) that goes until X range or it hits an enemy unit, and then explodes on collision, causing a Thunder Clap or Frost Nova or something (or really any event, so I can fiddle with it). It should also do extra damage to the unit it collides with.

Can someone provide me with this?

I'd like it to be organized in such a way that I can change the variables; the range, the speed, the damage, the ability cast on impact, the projectile, etc. Maybe a few other options. I don't care, however, if it can do barrel rolls and measure collisions on the Z axis, or pour me a cup of fucking coffee.

Simple projectile system anyone?

 

[Maker]

JASS or vJASS? Is there only one type of projectile? Is it an ability or default attack? Is the projectile damage ability level dependant?

Here's something. Press ESC to create a projectile.

http://www.hiveworkshop.com/forums/pastebin.php?id=evszx0

 

[mckill2009]

I've created like this also before...
http://www.hiveworkshop.com/forums/pastebin.php?id=ilab7e

 

[Narogog]

here are two gui projectile systems by redscores, if you don't want to use vJass....
just 2 dimensional
his later one which is also 3d, but its better then the first one.