DE2-70 to replicate keyboard input

Hello all,

I have taken on a project that involves image processing and using the image data+logic to send commands to control a computer game. My problem is how do I use the DE2-70 FPGA to replicate a computer input?

Should I attempt to use USB connection (my professor advised against this)? or should I use the serial output capabilities of the board to interface with a PS/2 slot on a computer?

are there other options?

Has anyone done anything similar to this before?

Much appreciated for any help,guidance, and or advice on the subject matter.

-caleblar