A few scripts that add momentum to a sprite. There's a line mode where you drag and release a sprite (like in angry birds) ...and there's a drag & drop mode where you can 'throw' a sprite and it keeps it's momentum. Press space to show and hide variables, and if things seem too sensitive or you just want to change some of the script, it shouldn't be that hard to edit. Feel free to use this in your projects, just make sure to credit @BitTheDrone
