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Understanding Tetris-game code. newbie

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Old 03-19-2016
Understanding Tetris-game code. newbie
Hi All,

Been trying to understand the code in tetris game (in the sticky threads) & i know i have a alot reading /practice to do. it's using advanced methods with arrays and arithmetic and would much appreciate if some one can guide me to good books that's not outdated that would help me take bash understanding further. thanks in advance.

link on the game:

Code:
https://www.unix.com/shell-programming-and-scripting/174525-tetris-game-based-shell-script-new-algorithm.html


Thanks in advance.
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LEARN ABOUT NETBSD

trek

TREK(6) 							 BSD Games Manual							   TREK(6)

NAME

     trek -- trekkie game

SYNOPSIS

     trek [-sf]

DESCRIPTION

     trek is a game of space glory and war.  Below is a summary of commands.  For complete documentation, see Trek by Eric Allman.

     The -s flag makes the game somewhat more efficient if you have a (very) slow terminal.  The -f flag (the default) is for faster terminals.

     The game will ask you what length game you would like.  Valid responses are ``short'', ``medium'', and ``long''.  You may also type
     ``restart'', which restarts a previously saved game.  You will then be prompted for the skill, to which you must respond ``novice'',
     ``fair'', ``good'', ``expert'', ``commodore'', or ``impossible''.	You should normally start out with a novice and work up.

     In general, throughout the game, if you forget what is appropriate the game will tell you what it expects if you just type in a question
     mark.

SEE ALSO

     /usr/share/doc/usd/31.trek

AUTHORS

     Eric Allman

COMMAND SUMMARY

     abandon
     capture
     cloak up/down
     computer request; ...
     damages
     destruct
     dock
     help
     impulse course distance
     lrscan
     move course distance
     phasers automatic amount
     phasers manual amt1 course1 spread1 ...
     torpedo course [yes] angle/no
     ram course distance
     rest time
     shell
     shields up/down
     srscan [yes/ no]
     status
     terminate yes/no
     undock
     visual course
     warp warp_factor

BSD
								   May 24, 2009 							       BSD