This is a port of ggtl (generic game tree library), sl (stack libaray)
and opt (command line options library) to the AmigaOS. I have ported the
examples Othello and Connect4 to Intuition. The source code is released
under GPL and is included. See http://brautaset.org/projects/ggtl/
for the original Linux release.

What is GGTL?
-------------
GGTL (Generic Game-Tree Library) is a library aiming to ease the
creation of computer games. It is written in ANSI C and released under
the GNU GPL for maximum portability and accessibility. Ease of use was
one of the main areas of focus when creating GGTL.

GGTL is targeted in particular at two-player zero-sum
perfect-information games. A zero-sum game is any game where an
advantage for one player results in an equally large disadvantage for
the opponent. Perfect-information means that the state of the game will
not change while the player is taking time to chose her move, i.e.
players alternate taking moves.

Examples of games where GGTL can be used are Chess, Othello, Checkers
and Go. For these games, GGTL provides game-tree search utilising
MiniMax search with Alpha-Beta pruning (briefly explained below, in case
this means nothing to you). It also automatically provides history and
unlimited undo for any games it is used with. Additionally, GGTL can
write game information to a file and restore from it with no loss of
history (full undo-capabilities and history is available on resumed
programs too).

GGTL can be useful even for games that do not meet all of the above
criteria. For many such games, GGTL can still provide history and
undo-facilities as well as well as the ability to save and resume.

Differences between Amiga port and original code
------------------------------------------------
It isn't a shared library. The makefile just creates object (*.o) files
which you should link wih your game source code.
GGTL uses a function from timer device. This means you must open the timer
device
and set TimerBase, otherwise the program will crash. (see example code for
Othello and Connect4.)

I have used GCC3.3. The source is ANSI C. It should compile with other
Amiga C compilers, but I can't guarantee.

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[generic]                 1370    1703  80.4% -lh5- 2c3b May  8  2004 ggtl.info
[generic]                16903   33908  49.8% -lh5- 76fc May  8  2004 ggtl/aconnect4
[generic]                17396   36408  47.8% -lh5- e362 May  8  2004 ggtl/amoth
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[generic]                12599   24656  51.1% -lh5- e010 May  8  2004 ggtl/ggtl/ttt
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[generic]                 2908   17832  16.3% -lh5- c591 Mar  3  2004 ggtl/options/doc/html/opt_8c.html
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[generic]                  575    1173  49.0% -lh5- 959f Mar  3  2004 ggtl/options/doc/html/pages.html
[generic]                  661    1884  35.1% -lh5- fb83 Mar  3  2004 ggtl/options/doc/html/structopt-members.html
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[generic]                  696    1397  49.8% -lh5- 63af Mar  3  2004 ggtl/options/doc/html/todo.html
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[generic]                 3361   10223  32.9% -lh5- f231 Mar  3  2004 ggtl/options/opt.c
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[generic]                  462     791  58.4% -lh5- d280 Mar  3  2004 ggtl/sl/doc/html/index.html
[generic]                 2770   19731  14.0% -lh5- 3ba6 Mar  3  2004 ggtl/sl/doc/html/sl_8c.html
[generic]                  919    3522  26.1% -lh5- 6cd3 Mar  3  2004 ggtl/sl/doc/html/sl_8h-source.html
[generic]                 2985   20141  14.8% -lh5- 9f9c Mar  3  2004 ggtl/sl/doc/html/sl_8h.html
[generic]                12502   43678  28.6% -lh5- a5d1 Mar  3  2004 ggtl/sl/Doxyfile
[generic]                  377     585  64.4% -lh5- f7be Mar  3  2004 ggtl/sl/run-tests.sh
[generic]                 2219    6895  32.2% -lh5- 9f54 Mar  3  2004 ggtl/sl/sl.c
[generic]                  697    1473  47.3% -lh5- 8fab Mar  3  2004 ggtl/sl/sl.h
[generic]                 5773    9748  59.2% -lh5- 37e6 May  8  2004 ggtl/sl/test-free
[generic]                  603    1174  51.4% -lh5- b52e Mar  3  2004 ggtl/sl/test-free.c
[generic]                 6105   10400  58.7% -lh5- 449c May  8  2004 ggtl/sl/test-map
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[generic]                 5949   10104  58.9% -lh5- 990a May  8  2004 ggtl/sl/test-mergesort
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[generic]                 5799    9828  59.0% -lh5- 09f7 May  8  2004 ggtl/sl/test-pushpop
[generic]                 5840    9928  58.8% -lh5- 1c39 May  8  2004 ggtl/sl/test-pushpop-end
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[generic]                 5814    9864  58.9% -lh5- a9f2 May  8  2004 ggtl/sl/test-reverse
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