PAC-EDWARDS Varun Mehta - Mike Pierorazio - Jeffrey Cropsey Project - - PowerPoint PPT Presentation

PAC-EDWARDS

Varun Mehta - Mike Pierorazio - Jeffrey Cropsey

Project Overview

• Design a two player PacMan style

arcade game

• Use the DE2 VGA for game

visualization

• Use the DE2 I/O to Implement NES

Controller Interface

System Overview

NES Controller NES Controller NES Controller Controller VGA Controller CPU RAM Controller RAM Top Level Entity Currently Pressed Buttons Player Locations Dots on Board Player Scores Pre-programmed Sprites

Display in-depth

Video (The Goal)

Video (Starting)

What We Needed For Video

• Good-looking mazes
• Player scores
• Dot + Big Macs
• Player graphics

Mazes

• Shape of maze defined in hardware
• 16x16 tiles
• Graphics chosen for tiles dynamically
• Inquire about neighboring tiles
• 6 sprites used for all maze graphics

Scores

• Custom font
• Read scores from memory
• Display outside of maze area

Dots

• Dots stored in memory
• 16x16 tiles
• Read status of dots from memory
• Draw dot if appropriate
• Special graphics for Big Macs
• Similar to player sprites

Players

• Sprites stored in memory
• 16x16 sprites, 4 bits per pixel
• Color table to get pixel’s color
• Read locations of players from

memory

• Can be at any arbitrary (x,y)

That’s More Like It!

NES Control In-Depth

NES Pin-out and signaling

Game logic Loop

• Internal copy of maze / dot array
• Main Loop
• Player 1 then Player 2
• Checks if player “eats” dot
• Moves Player

fin