PROGRAM:        Centipede
VERSION:        1.0
AUTHOR:         James Vernon - TCPA
DESCRIPTION:    Most ppl should know this...
MACHINES:       TI-83, TI-83+, TI-86
PLATFORMS:      Ion, MirageOS, TI-86-OS, most TI-86 shells
RELEASED:       February 2002
SIZE:           TI-83 Ion:              3274 bytes
                TI-83+ Ion:             3271 bytes
                TI-83+ MirageOS:        3289 bytes
                TI-86:                  3401 bytes


##################
## Introduction ##
##################

    Centipede is pretty much based on the old Centipede game for the Atari
    2600 console. The game is as old as I am but nevertheless provides for a
    bit of fun.


#####################
## Aim Of The Game ##
#####################

    The aim is to destroy all the Centipedes without being destroyed
    yourself. Yep, pretty simple ;) The Centipedes will work their way down
    the screen until they get to the bottom, where they will begin to work
    their way back to the top.

    Every time you shoot a portion of a Centipede, that portion becomes an
    obstacle that other portions of the Centipedes can't move through.
    Therefore, it is a good idea to shoot as many of the obstacle blocks down
    as possible, making the movement of the Centipedes easier to predict.


#############
## Enemies ##
#############

    Centipede   This is your primary enemy. Destroy all of the Centipedes on
                a Level to complete it.

    Bug         A nuisance of a thing that jumps around the screen. Shoot
                them for points.

    Bomb        They tend to drop out of the sky here and there. They can
                also leave blocks along the way. Probably best to dodge but
                they can be shot out of the sky.

    Bird        Flies across the sky leaving blocks along the way.

    Coming into contact with any of the above enemies will destroy you.


##########
## Keys ##
##########

    For any keys that differ between TI-83(+) versions and the TI-86 version,
    the TI-83(+) key is listed first then the TI-86 key.

    TITLE SCREEN:
        [2nd]           Start game
        [MODE]/[EXIT]   Quit Centipede

    IN-GAME:
        Arrow keys      Move
        [2nd]           Shoot
        [MODE]/[EXIT]   Quit to title screen

    NEW HIGH SCORE:
        Letter key      Type that letter
        [ENTER]         Finish

    GAME OVER:
        [ENTER]         Return to title screen


#####################
## Version History ##
#####################

    v1.0 <> February 2002
        TI-83 Ion Size:         3274 bytes
        TI-83+ Ion Size:        3271 bytes
        TI-83+ MirageOS Size:   3289 bytes
        TI-86 Size:             3401 bytes
                - First public release
                - Pretty similar to the original


#####################
## Future Versions ##
#####################

    Ideas for future versions:
        - More optimisation (can't get enough of that)
        - Use OR graphics instead of XOR
        - Anything else? Email me :P


##################
## Thanks to... ##
##################

    Many thanks go out to the following people:

    - Joe Wingbermuehle for Ion.
    - Detached Solutions for MirageOS.
    - Movax and Wrath for Devpac83 & Devpac8x.
    - Patrick Davidson for the routine in "collide.asm".
    - Jimmy Mardell and Ahmed ElHelw for the high score routines used out of
      ZTetris.
    - ACZ for their include files.
    - Atari for the original Centipede.
    - John Dullea for PCAE (PC Atari Emulator).


###################
## Closing Notes ##
###################

    You are welcome to put this game on your webpage as long as you don't
    separate any of the files contained within the original zip file. Also,
    you can use any of the code contained in the source files as long as you
    give credit where due.


Centipede
Version 1.0
Copyright (c)2001-2002 TI-Calculator Programming Alliance
Written and Programmed by James Vernon <james@calc.org>
ICQ#: 71589304
http://jamesv.calc.org
http://tcpa.calc.org
