This was a lovely adventure into the new world of USB HID devices and designing controls.
Since I am veeeery sloooow at both learning and implementing I started off with example codes. So I started by tinkering with the Keyboard and Mouse Control example of the Arduino library. In order to make it work I had to of course get my circuit right, and then figure out how the code was working so I could get rid of the unecessary mouse part of it.
This meant the fun surprise of seeing the series of 4 letters invading my screen.
After understanding how to print letters on the screen I went along and figured out how to press keys. so from the Keyboard Reprogram example of the libraries I was able to see how the calling of actual keyboard keys was happening (I went for the new document option of it).
Now that my confidence was building on I moved to the final adaptation into what I needed. This meant keystrokes going up and down or left and right l ike crazy
But it finally worked!!! Success!!!!
No onto fabrication. Since I am TERRIBLE at video games because the controls just don't translate to me what need to happen on the screen. Don't try to face me on Guitar Hero or Dance Revolution because I'll crush you. I decided to recreate a spacecraft and see if I could arrange the buttons to respond to what my brain expected to happen. For this porpuse I had to arrange my board and arduino in a neat sandwich, wire it, get in the space craft and voila!
Now I'll just practice, practice, practice to meet my Guitar Hero master level