Jason Kulatunga Tyler Best CMPE 490 Twisted Tetris Jason Kulatunga Tyler Best CMPE 490

Game Modes Three game modes are available Classic Twisted Strategic

History Tetris created by Alexey Pazhitnov in 1984 Packaged with the Gameboy at the handheld’s release.

History Then Now

Basic Gameplay All modes show at least 1 Next Tetrad Tetrad shadows (Ghosts) are shown for each piece 10 Lines per Level For each increase in Level, Tetrad drop speed increases

Basic Gameplay Score, level and lines cleared displayed at all times in an info panel. Score will be based upon how many lines are cleared at one time, as well as what level you are on.

Basic Gameplay No Gravity

Classic Mode Basic Tetris that we all know and love. No changes from the Basic Gameplay Only 1 Next Tetrad is shown

Twisted Mode Hard, Very Hard 17 New Pieces, all made up of 5 blocks 2 Next Tetrads shown Speed varies per Tetrad randomly.

Strategic Mode 7 Classic Tetrads + 1 New ‘BOMB’ Piece Move counter, when the ‘health’ bar disappears, GAME OVER, available moves affected by Level BOMB clears 1 block radius in all directions initially, increases at higher levels.

Controls Classic Tetris controls using keypad Left Right Down Drop Rotate Pause/Resume/Menu

Advanced Controls Touch capable LCD allows for block drops and block movement. Menu Navigation can be done by touch

Menu System Contextual menu, changes depending on the state of game play. Change game modes and pause/resume, restart and quit. Visual cues show currently selected item

Usability Pieces will start out in a variety of different 8 bit colors. Once they are locked in place will set to Red. The ghost allows for the user to see where the piece will be placed, allowing for faster decision making.

LCD Touch The screen is divided into a 5x7 grid. When the resistive touch screen is touched by the user, the USART start to receive position bytes. Transmits 0xFF on the finger release.

LCD Touch The Start position byte is read, and each following byte overwrites the End position byte until an 0xFF is received. A column mask is used to separate the columns data from row data.

References Tetrads – http://en.wikipedia.org/wiki/Tetris Pentomino - http://en.wikipedia.org/wiki/Pentomino Bomb - http://www.psdgraphics.com/wp-content/uploads/2010/01/bomb-icon.jpg Nintendo Gameboy - http://en.wikipedia.org/wiki/Tetris_%28Game_Boy%29 LCD Touch Panel Grid, Serial Connection - ezLCD-002 Reference Manual

Questions?