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game/misc/labyrinth64.lha

Mirror:Random
Showing:m68k-amigaosppc-amigaosppc-morphosi386-arosi386-amithlonppc-warpupppc-powerupgeneric
No screenshot available
Short:Remake of Commodore 64 game Labyrinth
Author:Kim Fastrup Larsen
Uploader:kimflarsen hotmail com (Kim Fastrup Larsen)
Type:game/misc
Version:1.5.6
Architecture:m68k-amigaos
Date:2022-07-08
Download:http://aminet.net/game/misc/labyrinth64.lha - View contents
Readme:http://aminet.net/game/misc/labyrinth64.readme
Downloads:2018

New in 1.5.6
------------

- When booted from a floppy disk on an Amiga without a bat-
  tery backed-up clock, the RNG would tend to always be
  seeded with the same number. In order to improve this, the
  seeding has been moved to when the first requester is dis-
  missed and now uses the microseconds from the system time.
- TextLength was called before setting the font on the in-
  tro screen. How it worked anyway is a mystery; regardless,
  it has been fixed.
- Various code cleanup.


Prefer ADF?
-----------

An ADF is available as an alternative to this archive. You
can get it here:

https://www.dropbox.com/s/3yqlf0hynjax0hd/Labyrinth.adf


What is Labyrinth?
------------------

Labyrinth is a remake of a Commodore 64 game published by
Commodore in 1983 (not to be confused with the 1986 film
adaptation from LucasFilm), which was itself a souped-up
version of an earlier public domain game originally written
in BASIC for the Commodore PET.

In this game you must find your way through a randomly gen-
erated maze of your chosen size, playing from a first person
view. Can you do it without peeking at the plan?

- Runs on all classic Amiga models.
- Adapts to PAL/NTSC and overscan.
- 100% OS- and multitasking-friendly. Can even share audio
  channels with other programs running at the same time, if
  those programs support it.
- Faithful rendition of the original game's arrangement of
  Greensleeves, using real time volume envelope generators
  and the highest quality waveforms possible at all octaves.
- Uses menus, gadgets and requesters to provide a proper
  Amiga interface, yet retains the feel of the original
  game.

For a bit of fun, try starting up multiple instances of the
game and enjoy the ensuing chaos of all of them playing mu-
sic at the same time! Yes, the Amiga was always capable of
doing this!

Full source code is included under the GNU General Public
License 3.0.


Installation
------------

The program file can simply be dragged anywhere to install
it where you like.

Labyrinth will try to use a font called Proptopaz. That font
is included in this distribution. It is optional, but you
can use the provided installer to copy it into your system's
fonts directory if you wish to use it.

If you don't install it, Labyrinth will try to use Newtopaz
instead. If that is not available either, it will just use
Topaz (the font built into Amiga systems).


About the implementation
------------------------

The game is written entirely in Kickstart 1.2 compatible
code. There is no direct hardware access; everything is done
through the operating system, and the game is fully event-
driven.

It takes advantage of audio.device's ability to share audio
channels between programs. Unfortunately, most other pro-
grams simply allocate all four audio channels at the highest
precedence, thus completely preventing other applications
from using sound.

In fact, the only other programs I know of that will share
audio channels are my own Harmonics and Space Invaders. But
at least you can now have Greensleeves as background music
while playing Space Invaders, or load up Harmonics and play
along! Or you can run multiple instances of the game and
have them all play music at the same time, if that sounds
enticing.

Channel precedences are carefully changed on the fly so that
other applications will tend to steal the channels that are
doing the least important work. That is to say, channels
that are playing the final (release) part of a sound will be
stolen before channels that are playing the main (sustain)
part, which in turn will be stolen before channels that are
playing the initial (attack) part.

The game implements the ATAK and RLSE chunks of the IFF 8SVX
file format (although it doesn't actually load IFF files, it
uses the format internally). It is able to accomplish this
even on an Amiga 500 (using about 10% CPU time for three
channels of music) by using a modified version of Bresen-
ham's line algorithm along with careful precalculations.

It also implements the IFF SMUS format. The music runs in a
separate high priority task signalled by an interrupt, so it
won't be slowed down when the game is rendering. It will
even play music while a floppy drive is active without slow-
ing down.

The music and multithreading is implemented in highly modu-
lar and reusable code, and I have done my best to document
the API for each module.


Other things
------------

Check out some of my other Amiga software on Aminet:

Harmonics - mus/edit/harmonics.lha

- A simple additive synthesizer.

KoalaView - gfx/show/KoalaView.lha

- View and convert Commodore 64 images with authentic
  looking colors.

ScreenTime - util/time/ScreenTime.lha

- Highly configurable digital clock on any public screen,
  with locale support and calendar.

Space Invaders - game/shoot/spaceinv.lha

- Arcade perfect and system friendly.

ToolsMenu - util/cdity/ToolsMenu.lha

- Add tools and projects to the Workbench menu, using a
  simple interface similar to FKey.


History
-------

1.5.6 (Jul 8, 2022)

- When booted from a floppy disk on an Amiga without a bat-
  tery backed-up clock, the RNG would tend to always be
  seeded with the same number. In order to improve this, the
  seeding has been moved to when the first requester is dis-
  missed and now uses the microseconds from the system time.
- TextLength was called before setting the font on the in-
  tro screen. How it worked anyway is a mystery; regardless,
  it has now been fixed.
- Various code cleanup.

1.5.5 (Jun 3, 2022)

- A change in the order of program clean up on exit meant
  that the music would continue to play until the end of
  clean up, slowing program exit down, especially in cases
  where closing the screen caused the Workbench to be re-
  opened. To prevent that, the game will now stop the music
  explicitly when quitting, before initiating clean up.

1.5.4 (May 20, 2022)

- Includes an updated version of proptopaz.font.
- Lots of minor tweaks, optimizations and fixes.

1.5.3 (Aug 13, 2021)

- Title screen can now be skipped with the Esc key or the
  left mouse button.
- Now uses a custom mouse pointer to avoid weird things hap-
  pening with hires pointers.
- Improvements to the audio and music code, and other little
  improvements.
- Now includes an installer for the optional font.
- Changed the documentation to refer to this project as a
  remake rather than a port, and added a few bits.

1.5.2 (May 7, 2021)

- A couple of minor corrections to the music.
- The music thread now will not use any CPU time when the
  music is turned off.
- Other improvements to the music code.

1.5.1 (Apr. 8, 2021)

- Fixed nonsensical music set up code that should never
  have worked, yet somehow did.

1.5 (Apr. 7, 2021)

- Will now try to use proptopaz.font. If that is not found,
  newtopaz.font will be tried. If that is not found either,
  topaz.font will be used as before.
- proptopaz.font included in the distribution.

1.4 (Mar. 5, 2021)

- Fixed a divide by zero crash at the end of the game if the
  player peeked too many times at the plan.
- Major improvements to the music set up code; it is now
  much faster, smaller, and uses less memory.
- Minor improvements to the maze design routine.

1.3 (Feb. 15, 2021)

- Added joystick support.
- Improved title screen, especially on PAL.

1.2 (Dec. 31, 2020)

- Fixed bugs in the music code that could potentially cause
  crashes or other problems.
- Various improvements.

1.1 (Dec. 17, 2020)

- Sped up the intro.
- Various improvements to the music, the code and the docu-
  mentation.

1.0 (Dec. 3, 2020)

- Initial release.


Contents of game/misc/labyrinth64.lha
PERMISSION  UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP     NAME
---------- ----------- ------- ------- ------ ---------- ------------ ----------
[unknown]                  344     900  38.2% -lh5- 6fc7 Jul  8 16:43 Labyrinth.info
[unknown]                   28     264  10.6% -lh5- 983d Jul  8 16:44 Labyrinth/fonts/proptopaz.font
[unknown]                 1741    3204  54.3% -lh5- fcea Jul  8 16:44 Labyrinth/fonts/proptopaz/8
[unknown]                12641   35147  36.0% -lh5- 7994 Jul  8 16:43 Labyrinth/gpl-3.0.txt
[unknown]                  190     370  51.4% -lh5- 7b95 Jul  8 16:43 Labyrinth/gpl-3.0.txt.info
[unknown]                  204     337  60.5% -lh5- f60b Jul  8 16:43 Labyrinth/Install_font
[unknown]                  146     402  36.3% -lh5- a60b Jul  8 16:43 Labyrinth/Install_font.info
[unknown]                23614   40300  58.6% -lh5- a34f Jul  8 16:43 Labyrinth/Labyrinth
[unknown]                  159     550  28.9% -lh5- a8fd Jul  8 16:43 Labyrinth/Labyrinth.info
[unknown]                 3679    8392  43.8% -lh5- 9be3 Jul  8 16:43 Labyrinth/ReadMe
[unknown]                  193     370  52.2% -lh5- 6cdb Jul  8 16:43 Labyrinth/ReadMe.info
[unknown]                 2881   11816  24.4% -lh5- ba75 Jul  8 16:43 Labyrinth/Source/audio.c
[unknown]                 2444    6641  36.8% -lh5- 4f2f Jul  8 16:44 Labyrinth/Source/audio.h
[unknown]                 2191    6360  34.4% -lh5- 4b45 Jul  8 16:44 Labyrinth/Source/bgm.c
[unknown]                  531     901  58.9% -lh5- 4a42 Jul  8 16:44 Labyrinth/Source/bgm.h
[unknown]                 1296    4777  27.1% -lh5- 21b0 Jul  8 16:44 Labyrinth/Source/bgmdata.c
[unknown]                  592    1017  58.2% -lh5- 0b7a Jul  8 16:44 Labyrinth/Source/bgmdata.h
[unknown]                  832    1510  55.1% -lh5- cc1d Jul  8 16:44 Labyrinth/Source/common.c
[unknown]                  661    1137  58.1% -lh5- 5cd3 Jul  8 16:43 Labyrinth/Source/common.h
[unknown]                  581     963  60.3% -lh5- 3af8 Jul  8 16:44 Labyrinth/Source/compiler.h
[unknown]                  871    2316  37.6% -lh5- 0c16 Jul  8 16:44 Labyrinth/Source/data.asm
[unknown]                  998    2480  40.2% -lh5- ab6e Jul  8 16:43 Labyrinth/Source/drawbuf.c
[unknown]                  617    1114  55.4% -lh5- 64a1 Jul  8 16:44 Labyrinth/Source/drawbuf.h
[unknown]                 1290    2965  43.5% -lh5- 162f Jul  8 16:43 Labyrinth/Source/envelope.c
[unknown]                 1604    3942  40.7% -lh5- 0489 Jul  8 16:44 Labyrinth/Source/envelope.h
[unknown]                  816    1604  50.9% -lh5- 50ae Jul  8 16:43 Labyrinth/Source/font.c
[unknown]                  579     979  59.1% -lh5- cdd8 Jul  8 16:44 Labyrinth/Source/font.h
[unknown]                 2445    7103  34.4% -lh5- 3ab2 Jul  8 16:44 Labyrinth/Source/game.c
[unknown]                  768    1508  50.9% -lh5- f903 Jul  8 16:44 Labyrinth/Source/game.h
[unknown]                 5512   21885  25.2% -lh5- 7b64 Jul  8 16:44 Labyrinth/Source/gfx.c
[unknown]                  787    1526  51.6% -lh5- 0b77 Jul  8 16:44 Labyrinth/Source/gfx.h
[unknown]                 5753   21148  27.2% -lh5- 05df Jul  8 16:44 Labyrinth/Source/gui.c
[unknown]                  815    1580  51.6% -lh5- ad92 Jul  8 16:44 Labyrinth/Source/gui.h
[unknown]                 3532   12806  27.6% -lh5- a960 Jul  8 16:44 Labyrinth/Source/guitools.c
[unknown]                 2277    5638  40.4% -lh5- 905a Jul  8 16:44 Labyrinth/Source/guitools.h
[unknown]                 1394    3670  38.0% -lh5- fc6d Jul  8 16:44 Labyrinth/Source/iff/8SVX.h
[unknown]                  419    1005  41.7% -lh5- 684b Jul  8 16:44 Labyrinth/Source/iff/compiler.h
[unknown]                 6973   20481  34.0% -lh5- 3781 Jul  8 16:44 Labyrinth/Source/iff/iff.h
[unknown]                 2530    7644  33.1% -lh5- 48fe Jul  8 16:44 Labyrinth/Source/iff/SMUS.h
[unknown]                 1826    4831  37.8% -lh5- 75d4 Jul  8 16:44 Labyrinth/Source/instrument.c
[unknown]                 2514    6785  37.1% -lh5- 9786 Jul  8 16:44 Labyrinth/Source/instrument.h
[unknown]                  733    1306  56.1% -lh5- 86d4 Jul  8 16:44 Labyrinth/Source/interrupt.asm
[unknown]                 1503    4210  35.7% -lh5- 1f74 Jul  8 16:44 Labyrinth/Source/joystick.c
[unknown]                  971    2010  48.3% -lh5- 2c0e Jul  8 16:44 Labyrinth/Source/joystick.h
[unknown]                 1659    4308  38.5% -lh5- d748 Jul  8 16:44 Labyrinth/Source/main.c
[unknown]                  545     904  60.3% -lh5- dcad Jul  8 16:44 Labyrinth/Source/main.h
[unknown]                 1459    3945  37.0% -lh5- dc29 Jul  8 16:44 Labyrinth/Source/maze.c
[unknown]                  680    1298  52.4% -lh5- 6148 Jul  8 16:44 Labyrinth/Source/maze.h
[unknown]                 1413    4796  29.5% -lh5- 0d38 Jul  8 16:44 Labyrinth/Source/mem.c
[unknown]                  848    1738  48.8% -lh5- 9f43 Jul  8 16:44 Labyrinth/Source/mem.h
[unknown]                 2371    7230  32.8% -lh5- a6fb Jul  8 16:44 Labyrinth/Source/music.c
[unknown]                 1678    3730  45.0% -lh5- 9724 Jul  8 16:44 Labyrinth/Source/music.h
[unknown]                 1434    3300  43.5% -lh5- e738 Jul  8 16:44 Labyrinth/Source/period.c
[unknown]                  809    1610  50.2% -lh5- d08c Jul  8 16:44 Labyrinth/Source/period.h
[unknown]                   70     384  18.2% -lh5- 21d2 Jul  8 16:44 Labyrinth/Source/Resources/fgadget.bin
[unknown]                  159     550  28.9% -lh5- a8fd Jul  8 16:44 Labyrinth/Source/Resources/Labyrinth.info
[unknown]                   77     384  20.1% -lh5- 7468 Jul  8 16:44 Labyrinth/Source/Resources/lgadget.bin
[unknown]                   74     384  19.3% -lh5- 603d Jul  8 16:44 Labyrinth/Source/Resources/rgadget.bin
[unknown]                  508     508 100.0% -lh0- f93f Jul  8 16:44 Labyrinth/Source/Resources/sawtooth.bin
[unknown]                  297    1024  29.0% -lh5- 84cd Jul  8 16:44 Labyrinth/Source/Resources/title.bin
[unknown]                  482    1138  42.4% -lh5- 1e98 Jul  8 16:44 Labyrinth/Source/Resources/trak0.bin
[unknown]                  401     704  57.0% -lh5- 1c94 Jul  8 16:44 Labyrinth/Source/Resources/trak1.bin
[unknown]                  308     620  49.7% -lh5- a2a5 Jul  8 16:44 Labyrinth/Source/Resources/trak2.bin
[unknown]                 1020    1020 100.0% -lh0- d38f Jul  8 16:44 Labyrinth/Source/Resources/triangle.bin
[unknown]                  133     195  68.2% -lh5- 4c8a Jul  8 16:44 Labyrinth/Source/SCOPTIONS
[unknown]                  622    1037  60.0% -lh5- 21e7 Jul  8 16:44 Labyrinth/Source/score.h
[unknown]                 1016    2302  44.1% -lh5- 6129 Jul  8 16:43 Labyrinth/Source/server.c
[unknown]                 1218    2561  47.6% -lh5- 7c7f Jul  8 16:44 Labyrinth/Source/server.h
[unknown]                  885    2303  38.4% -lh5- 8adf Jul  8 16:44 Labyrinth/Source/smakefile
[unknown]                  931    1796  51.8% -lh5- a4c2 Jul  8 16:43 Labyrinth/Source/snprintf.c
[unknown]                  844    1490  56.6% -lh5- c12f Jul  8 16:43 Labyrinth/Source/snprintf.h
[unknown]                 1442    3361  42.9% -lh5- 1321 Jul  8 16:43 Labyrinth/Source/thread.c
[unknown]                 1456    3301  44.1% -lh5- 5e86 Jul  8 16:44 Labyrinth/Source/thread.h
[unknown]                 1376    3507  39.2% -lh5- 4b12 Jul  8 16:43 Labyrinth/Source/timer.c
[unknown]                 1435    3316  43.3% -lh5- f69c Jul  8 16:44 Labyrinth/Source/timer.h
[unknown]                 1767    5137  34.4% -lh5- 51e7 Jul  8 16:43 Labyrinth/Source/voice.c
[unknown]                 2031    4893  41.5% -lh5- 8956 Jul  8 16:43 Labyrinth/Source/voice.h
---------- ----------- ------- ------- ------ ---------- ------------ ----------
 Total        77 files  133923  340668  39.3%            Jul  8 23:36

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