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GAME : CARROM 2007
by Shanaka Liyanage
tharashwin@yahoo.com
+94 (0)77
2619671
Carrom 2007- How it all began ?
Carrom Game was initially developed for Windows 98 with a SuperVGA graphics library
sometime back as a hobby project, and later it was converted to OpenGL. However
these versions were never published. After few years here I launch..
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Download
·
Carrom 2007 - Full version with voices (60 MB)
·
Carrom
2007 - Light version without voices (3.6 MB)
·
How it
works - This pdf file explains how Carrom 2007
works (275 KB)
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<
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Features
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Game status sensitive dynamically
generated conversations, to mimic friends making jokes at you (currently only in
“Singhala” language).
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Three levels of difficulty when selecting
a computer player
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Three levels of difficulty when selecting
a computer player
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3D Graphics
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How it works :::
(Read the concepts document for more information)
Carrom game is a C++ multithreaded application. It has two synchronized
background threads, one to monitor game situations and user activities and the
other to monitor coin collisions.
The main game progresses as a series of polymorphic commands issued by an
object called “Referee”. Referee checks the game status and gets a
sequence of appropriate actions from “GameRules” object and issues
polymorphic commands to current “Player” object. The player, human or
computer implements these commands and returns control back to
"Referee".
Collision detection of carrom coins is done by using relative velocities
and relative paths of the coins. Game doesn’t use OpenGL collision
detection methods, as collision detection was developed with a different
initial intension. The collisions are assumed to be smooth in order to
get rid of moment of inertia.
In Sri Lanka, when we play carrom with our friends for fun, we used to
make jokes at the player. Some times encouraging and most of the time
making funny jokes for his/her incompetence. This generally happens from
the start to the end of the game making the game even more fun to play.
This program can mimic this feature by observing the game and user
activities and, generating various conversations. This is done by one of
the two background threads mentioned earlier.
The thread monitors user activities and game situations (called “Events”)
and passes them to an object called “TalkNodeMesh” which is basically a
large mesh of interconnected nodes stored in a file.
Each node represents a voice clip with necessary information to play it. Nodes
are interconnected as a mesh with different probabilities for each connection.
When an Event occurs, one of the starting nodes get triggered and it causes one
of the other nodes connected to it be triggered probabilistically. This happens
until the end of nodes comes or until triggering process looses “energy”. In
this way a whole conversation is generated logically. Once the triggering
process is over, the “TalkNodeMesh” returns information of the triggered nodes
(logical conversation) to a sound player object to play them one after the other
with appropriate delays in between them. As and when these sound clips are
played, the probability of occurrence of the connection of the particular node
is deduced by a value unique to the connection. This reduces the probability of
same conversation being generated repeatedly. However these probabilities are
gradually incremented with time until they get their original value.
Thank You :::
The thought of adding
background conversations came to me very recently when I saw several young guys
playing a game of carrom. What they really enjoyed was not just the game itself
but the various jokes made by their friends, standing around them. This made me
look into the possibility of integrating a feature where there would be a set of
virtual 'spectators', passing comments and jokes while the game is on. Once I
completed programming part to facilitate this feature I faced with a problem of
finding suitable people for dubbing the sounds. Luckily I found several guys who
are probably the best for the job.
The thought of adding
background conversations came to me very recently when I saw several young guys
playing a game of carrom. What they really enjoyed was not just the game itself
but the various jokes made by their friends, standing around them. This made me
look into the possibility of integrating a feature where there would be a set of
virtual 'spectators', passing comments and jokes while the game is on. Once I completed
programming part to facilitate this feature I faced with a problem of finding suitable
people for dubbing the sounds. Luckily I found several guys who are probably the
best for the job.
A couple of guys from
my workplace itself, Kanchana and Neyomal, and a few undergraduates who joined Virtusa
as interns and a few others who are professionals in sound mixing who had their
own studio and all the necessary equipment required for the task. After putting
much more effort than I had initially anticipated, these guys came up with a brilliant
set of voice clips. And not just that, they all urged me to put this on a website
and Nadeera, who is a brilliant web designer, created this very attractive website
for me. Kokila and Ryan urged me to publish this, and came up with various creative
ideas and Kanchana, Neyomal and Dharshana were always behind me with their full
help. The professionals Chamara, Tharinda and their friends spent a lot of time
(despite their very tight schedule) on this, providing their ideas, voices and equipment.
Many thanks to all these creative people who provided me with much needed help on
this.
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