I was interested in making a classic inventory system to use in an upcoming project. I started making the system from scratch until I hit a small snag. While googling a way to solve my problem I found a video tutorial where a guy was making a tutorial that looked just like mine. His code was very similar also, however much neater. So I followed his tutorial until I reached a spot where It stopped. As he had not finished the tutorial and had not released a new vid in over a year, i decided to finish it myself.
From his initial version I added new features including..
Drag and Drop,
Detect Bad Drop,
(2015) (Unity) (Finished)