As I am interested to build this on Proteus, can tell me how can I implements this step by step?
Hi man, I'd be willing to help you with making snake in a digital simulation but I will be honest, Its not the best but, here is what I would suggest:
1. Build a RAM that can store you game size^2 x game size^2. What this means is for a 16x16 game have 256 bytes(0-255) this way you can have each cell on the screen have a number from 0-255, the length of that part
2. Create adders and subtractors that can either do full addition / subtraction or just a fixed rate of 1 is enough
3. Create a counter that can loop over all of the indices of the memory each frame/step, if 1 or higher draw snake, then subtract 1
3. Every frame have register2 with the snake X and Y, combine them with a bit shift and set that spot in memory to the snake length.
Thats all I have for now, later I will update the google drive files so you can look yourself in DLS. Hope that helps.