Retro Snake Game on FPGA

Mentors:

• Madhav Kedia
• Rohan Abhilash S.
• Omkar Chougule

Abstract

This project implements the retro Snake Game on an FPGA board using Verilog HDL. Through this project, we aim to demonstrate the capabilities of FPGA platforms in creating real-time, interactive digital environments. The project showcases digital design, FPGA programming, and hardware-software integration, serving as a hands-on experience in these areas.

Introduction

The project leverages the versatility of FPGAs (Field-Programmable Gate Arrays) to implement the classic Snake Game. Players control a snake to consume randomly appearing apples while avoiding collisions with walls or itself. The simplicity of the game combined with its real-time nature makes it an ideal demonstration of FPGA capabilities.

This implementation explores core aspects of digital design, including:

• Combinational and sequential logic
• Finite State Machines (FSMs)
• Peripheral interfacing

Objectives

• Develop Verilog modules to control snake movement, generate random apples, and detect collisions.
• Use Xilinx Vivado for RTL design, simulation, synthesis, and implementation.
• Program the FPGA (preferably Altera Cyclone IV) with the designed modules and test it on hardware.
• Interface the FPGA with a VGA display to project the game onto a monitor.
• Design a user interface using buttons, switches, or external controllers.
• Provide real-time player feedback, including score display and game-over notifications.
• Extend the game with features like bonus apples, speed boosts, and obstacles.

Substitutes

• If the Altera DE2-115 board is unavailable, we can use the Nexys 4 Artix 7 board.
• In case of VGA controller issues, an LED matrix can be used to demonstrate the game.
• If the FPGA buttons are unresponsive, we can use a PS2 keyboard as input.

Learning Outcomes

• Design and implement combinational and sequential logic circuits, including FSMs.
• Implement pseudo-random number generators and real-time collision detection algorithms in hardware.
• Gain proficiency in Verilog and RTL code.
• Understand how to generate VGA signals for monitor display and how to interface with input devices.
• Learn debugging techniques for FPGA hardware.

References

• Drive Link for Report
• YouTube Video 1
• YouTube Video 2