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

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

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