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1994-08-17
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Kentris
by Kenneth Silverman
User's Manual
History
When I saw Tetris for the first time, it was a shareware
version on an old XT. The game was very new to me, and it didn't
seem interesting. Then all of a sudden, Tetris games became
popular, taking on every shape and form. I saw many versions of
the game and decided to combine the best aspects of each game
with some of my original ideas to make one complete and exciting
Tetris game.
I first created Kentris as a challenging, but fun project, just
to see if I could create a game which was fun to program and play. I
made it around April, 1990 in Microsoft QuickBasic. This game
featured interesting background screens, it had a top 10 score list,
and it was incompatible with most computers because it was always
set to the same speed. Later, I made a 3-player head to head to
head Tetris game in Basic to go with it, but it was very difficult to
play because three people on one keyboard did not work out too
well.
After that, I made some minor revisions to the Basic version
of Kentris, but no one cared for it. Then, my brother Alan, failed
miserably, when he tried to convert this to C in order to make this
version of Kentris faster and better. So Kentris stayed on the back
burner for almost one half of a year.
When Alan went off to college at Brown University, he
played some of the one and three version Kentris games with his
friends, who each were used to playing their own version of the
game. They each said they would like Kentris better if it did this, or
if Kentris did that. Alan gave me a call, and he told me that there
was a demand for one good Kentris game which contains all the
features suggested by the crowd of people. The main feature being
a two player head to head Tetris game where the two players
actually interact with each other. Over the weekend of continuous
programming, I had a new version (done in Microsoft C for faster
running), much better than the previous one, which I sent to my
brother's group by modem. Of course, he called me back very soon
with a long list of bugs and improvements for this new Kentris 2.0.
This all happened in February 1991. First I added a rotating
introduction screen. Then I put in digitized sound even though it
could barely be heard through the PC speaker. I also made the 20
player information chart with passwords, along with the setup
screen. Kentris was being constantly tested with a new version
coming out virtually every week when I came out with my new ideas
along with the ideas coming to me from over the phone.
By the time this version came out, I had tested Kentris on
every type of PC imagineable, even over a network. This version
includes many features never seen before on any type of tetris
game:
- 3D filled-polygon rotation introduction screen
- works with CGA, EGA, and VGA graphics
- use of hardware video registers for smooth panning and
other special effects
- extra sound support (SoundBlaster, Covox VMKEYII, MIDI,
Old Pro Audio Spectrum, PC speaker voice synthesis using
special Kensound method, Advanced Systems sound option)
- full time background music
========================================================================
Hardware Requirements
- 286, 386, 486 or related microprocessor
- CGA, EGA, VGA, or SuperVGA graphics
- 384K of free memory
- hard drive recommended but not required
- for a 2-player game, you need a number keypad on your
keyboard
=====================================================================
Installation
HARD DRIVE SYSTEM:
Put your disk into the drive and type:
A:
KENSTALL drive path
If the drive of path doesn't exist, the default directory will be
C:\KENTRIS
To run Kentris, go into your hard drive and type:
CD drive path
KENTRIS
FLOPPY SYSTEM:
I do not suggest running Kentris off a floppy disk because it
would cause a considerable slowdown. If you must play off a floppy
disk, make sure to back up your original Kentris disk. Type this to
play off of your new backup copy of Kentris:
A:
KENTRIS
====================================================================
Now the Kentris files should be fully loaded, but they may
not be configured properly for your system. First run Kentris, and
you should see the Kentris logo rotating in either CGA or 256K-EGA
graphics. Kentris supports VGA graphics during the game, and EGA
graphics for the title screen for better rotation animation. Next
press the SPACEBAR to setup Kentris for your computer. Your
screen should now look like this.
+--------------------------------------+
| Kentris Options: |
+-------------------------------+------+
|1. Same pieces to both sides | |
|2. Penalize other players | |
|3. Speech speed | |
|4. Speech (none, some, all) | |
|5. Competition/Practice mode | |
|6. PC/Covox VM2/Sound Blaster | |
|7. Computer controlled sides | |
|8. Panning (off, mid, side) | |
|9. When to pan (drop, row) | |
|10. Music (PC/Midi/off) | |
+-------------------------------+-------
Here is a brief explanation of what each option does:
1. Same Tetris pieces to both sides for
a fair game.
2. When a player get 2 or more rows at
the same time, the other player
will receive that number of rows of
junk on the bottom of their Tetris
board.
3. Speed in which the speech, not
background music, is played out.
4. Tells how much speech will be allowed
on your speaker. Disable speech if
it is too slow or too hard to hear.
5. Tells the computer whether to keep
track of all games played with a
chart (competition mode), or to go
directly to the Tetris game
(practice mode).
6. Sound source for speech only.
7. For practice mode only, this tells
the computer which sides the
computer will control.
8. This controls how the computer pans.
(Panning is when the whole screen
moves to the left or right) Choose
either "off" to turn panning off,
"mid" if you want the player who is
doing better to remain closer to
the middle of the screen, or choose
"side" (vice versa of "mid".
9. This tells the computer when it
should pan. If the continuous
panning with "drop" bothers you,
then choose "row" so the computer
will update to screen position only
after someone gets a row.
10. Sound source for background music
only. Warning: MIDI may not work
with some synthesizers or MIDI
cards.
======================================================================
How to play Kentris
From the introduction screen, you can press F1 for a very
brief summary of what this document says. Kentris has the same
rules as all other Tetris games, so I won't bother to tell you the
rules. However, I have decided to put it in here because it explains
the controls well.
+---------------------+
| Kentris Help Screen |
+---------------------------+---------------------+----------------------------+
| |
| Kentris was made to be the most exciting competition tetris game available|
| for PC's. I started to write Kentris in February '91 for a group of freshmen|
| at Brown University and many of the ideas came from them. This product may |
| not be copied or modified without the written permission of Ken Silverman. |
| +------------------------+ |
| Left Player: | Kentris Game Controls: | Right Player: |
| +-------------+-----------+------------+------------+ |
| | +---+ +---+ +---+ | +---+ +---+ +---+ | |
| | | J | | K | | L | | | 4 | | 5 | | 6 | | |
| | +---+ +---+ +---+ | +---+ +---+ +---+ | |
| | left rotate right | left rotate right | |
| | +-------+ | +---+ | |
| | | Space | | | 0 | | |
| | +-------+ | +---+ | |
| | drop fast | drop fast | |
| +-------------------------+-------------------------+ |
| If you have any problems, questions, or ideas about Kentris, call or write |
| Kenneth Silverman, 50 Cindyann Drive, E. Greenwich, RI 02818 |
| Home phone: (401) 884-6723 |
+------------------------------------------------------------------------------+
About the author/business:
I finished the game when I was 15, about a year and a half ago, and have
been involved with many projects since then. Right now I am putting the
final touches on my game Ken's Labyrinth.
┌──────────────────────────────────────────────────────────────────────────────┐
│ A great new game produced by the same programmer as Kentris will be coming│
│ out soon, called Ken's Labyrinth. I have made it to become the fastest three│
│ dimentional scrolling game that I have seen available for PC's. On a 486-50 │
│ the screen updates on average 40 times a second! It also has over 20 great │
│ new Adlib songs and Sound Blaster digitized sound, of course. Unlike other │
│ 3-d scrolling games, Ken's Labyrinth features a high-resolution 360*240 │
│ graphics mode for those who have multi-sync monitors, and it has see-through │
│ doors and windows so one can look into a room before actually entering it. │
│ Also, my game has all of its art compressed by LZW compression, saving over │
│ 500K of disk space, if it was not compressed. For controls, you can either │
│ use the mouse or define your own keys on the keyboard. REQUIREMENTS: │
│ │
│ - Any IBM PC compatible with a VGA display card and VGA monitor. │
│ - At least 965K of memory, with at least 210K in conventional, and an │
│ XMS or EMS driver already loaded. │
│ - Approximately 820K of free hard disk space. │
└──────────────────────────────────────────────────────────────────────────────┘
If you have any problems, questions, or ideas about Kentris,
you may call or write me at this address and phone number:
Kenneth Silverman
50 Cindyann Drive
East Greenwich, RI 02818
(401) 884-6723
EMAIL: ams@lems.brown.edu