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DOMINO-CHAIN(6)			 Games Manual		       DOMINO-CHAIN(6)

NAME
       Domino-Chain  -	Rearrange  dominoes  on	different platforms to start a
       chain reaction.

SYNOPSIS
       domino-chain

DESCRIPTION
       Domino-Chain is a puzzle	game where you have to rearrange  dominoes  on
       different  platforms  to	start a	chain reaction that makes all dominoes
       topple over. There are many strange types of dominoes, such as the  As-
       cender  which  will  rise  to  the ceiling when pushed, or the Exploder
       which will blast	a hole into the	platform it stands on.

       Domino-Chain is a faithful reincarnation	of the	game  Pushover	origi-
       nally  published	 by  Ocean in 1992. Compared to	Pushover, Domino-Chain
       has some	new levels, some additional domino types, better  graphics  in
       higher  resolution and high-quality music. On top of that, you can load
       and play	the original levels from Pushover if you have a	copy of	it.

       This game is free software and created by volunteers. Even though it is
       in a pretty good	state, there is	a lot to improve. If you like  Domino-
       Chain,  please consider to join the team	and to help with translations,
       levels, graphics	and more.

USAGE
   Rules
       You control a figure that can walk along	platforms which	are  connected
       with  ladders. On those platforms there are dominoes that will fall ac-
       cording to certain rules. Your task is to rearrange the dominoes	so you
       can start a chain reaction that makes all  dominoes  topple  over.  The
       rules are:

       Domino types:
	      There  are  many different dominoes that behave differently when
	      pushed. Some fall, some not, some	wait a bit before  they	 fall,
	      some raise, some topple until they meet an obstacle.

       All fall, no crash:
	      All  dominoes  (except  for the blocker) must fall and none must
	      crash into another. They are allowed to  fall  off  the  screen,
	      though.

       Trigger and exit	door:
	      The  trigger domino must fall as last domino. Only then it trig-
	      gers the exit door to open. When you enter  the  exit  door  the
	      level has	been completed.

       Disallowed moves:
	      You  may	rearrange as many dominoes as you want,	except for the
	      trigger. You must	not place dominoes in front of the doors,  ex-
	      cept for the vanishing domino.

       One push:
	      You  may push only once to start a chain reaction	with the domi-
	      noes leading to the fall of all of them.

       Time limit:
	      All this has to be done within a time limit. This	limit is  usu-
	      ally generous, but not always.

       There  is  an in-game help as well as and introductory levels that show
       how all the dominoes work.

   Dominoes
       The following types of dominoes exist:

       Standard, completely yellow:
	      There is nothing special with this stone,	it behaves like	a reg-
	      ular domino and falls when pushed.

       Blocker,	completely red:
	      This domino can't	fall over, so it is the	 only  kind  of	 stone
	      that  may	 still	be standing when the level is solved. Dominoes
	      falling against this stone will bounce back, if possible.

       Tumbler,	big red	stripe:
	      This domino will stand up	again after falling and	will  continue
	      to  tumble  until	 it  hits an obstacle or rests against another
	      stone.

       Delay stone, diagonally divided:
	      This domino will take some time  until  it  falls,  when	it  is
	      pushed. Dominoes falling against this stone will bounce back and
	      later this stone will fall.

       Splitter, horizontally divided:
	      This  stone  will	split into two stones, one falling to the left
	      and the other falling  to	 the  right.  The  splitter  can't  be
	      pushed.  It must be split	by a stone falling onto	it from	above.
	      A	pile of	rubbish	falling	into it	also activates this domino.

       Exploder, vertically divided:
	      This stone will blast a gap into the platform it is standing on,
	      when it is pushed.  Neither the figure nor  the  pushing	domino
	      are harmed by that, the pushing domino will fall into the	gap.

       Bridger,	1 horizontal strip:
	      The  bridger will	try to connect the edge	it is standing on with
	      the next edge, if	it is close enough, if not it will simply fall
	      into the gap.

       Vanisher, 2 horizontal strips:
	      The Vanisher will	disappear as soon  as  it  lies	 flat  on  the
	      ground. This is the only stone you may place in front of doors.

       Trigger,	3 horizontal strips:
	      This  stone  will	 open  the  exit door, as soon as it lies com-
	      pletely flat and all other conditions are	met (see above).  This
	      is the only stone	that you are not allowed to move around.

       Ascender, vertical strip:
	      This  stone  will	start to rise as soon as it is pushed. It will
	      rise until is hits the ceiling, then it will start to flip  into
	      the  direction it	was initially pushed. When you fall into a gap
	      while holding this stone it will also rise and stay at the ceil-
	      ing until	pushed.

       Quantum,	diagonally divided:
	      All dominoes of this type	will fall together  as	if  they  were
	      quantum  entangled. There	are two	types of quantum dominoes with
	      inverted color markings. Those of	the same type will  fall  into
	      the  same	 direction, the	others will fall into the opposite di-
	      rection. This is a new type of dominoes not present in the orig-
	      inal Pushover game.

   Controls
       The figure is controlled	using the cursor keys and space. Use the space
       key to pick up the domino behind	the figure or to place it  down	 where
       you  are	 currently  standing. To push press first up to	let the	figure
       enter the row of	dominoes. Then simultaneously press space  and	either
       left  or	 right	cursor	key  depending on whether you want to push the
       domino to your left or your right.

   Hints
       If you don't know where to start	in a level, simply push	 a  stone  and
       observe	what  happens. This helps very often to	get a general idea how
       to solve	a level	and where the problem is.

       If you forgot which domino has what kind	of special property  press  F1
       to  get	a short	help. This window also displays	a short	hint, once the
       time of the level is out.

       The first levels	introduce you to the dominoes. Here  you  can  explore
       how the different dominoes behave in different situations.

CONTACT
       You can file bug	reports, discuss ideas for new features	and offer con-
       tributions on the

       Domino-Chain Issue Tracker
	      https://gitlab.com/domino-chain/domino-chain.gitlab.io/issues

       which  is the central point to get in contact with the project.	There,
       you'll also find	links to the code repository, and so on. If  you  need
       to  contact  us	privately,  please  contact Andreas Rver via roever at
       users dot sourceforge dot net.

AUTHORS
       Andreas Rver:
	      Project founder, main programming	and reverse engineering.

       Volker Diels-Grabsch:
	      Text-based level format, build system and	code assorted bugfixes
	      and patches.

       Roberto Lorenz:
	      Music composition	and arrangement.

       Harald Radke:
	      Theme graphics.

FILES
       Domino-Chain places a few files on your hard-disc in everyday  running.
       Those files will	be placed in your home directory.

       Location	on Unix	systems:
	      ~/.local/share/domino-chain

       The following files are saved:

       solved.txt:
	      This  file  contains  checksums  of all the levels that you have
	      successfully solved. In the level	selection dialogue those  lev-
	      els contain a mark. If you loose this file those marks are gone.

       *.rec: These  files  contain  recordings	 of activities within a	level.
	      They are automatically created whenever you solve	 a  level  but
	      you can also actively make a recording by	pressing 'r' while you
	      play  a level. When you observe something	strange	while playing,
	      make a recording and send	it to us. Also when the	game crashes a
	      recording	will be	saved. You can delete these files whenever you
	      want. You	can distinguish	the recordings by the prefix in	 their
	      name. "Sol" stands for solved levels, "Man" for manually created
	      recordings  and  "Err"  for  recordings  made  when  the program
	      crashed.

NOTES
   Level Designers
       Domino-Chain will eventually get	a  level  editor,  but	right  now  it
       doesn't.	 However,  all levels are stored in a readable plain text for-
       mat, so you can create and modify levels	directly with a	text editor.

       To get your levels officially included in the Domino-Chain project, you
       need to adhere to the following rules:

       License:
	      They need	to be put under	the  GPL,  or  a  compatible  license.
	      Otherwise	 inclusion  is	legally	 not possible. Copyright stays
	      with you,	of course.

       Complete	sets:
	      Please contribute	only complete sets and no single levels.  They
	      don't need to be long, 10	levels is enough, but this way you can
	      keep up a	constant scheme	and theme logic	of the levels.

       Solutions:
	      You absolutely must provide a recording of one possible solution
	      to each level. That solution is  not  within  the	 distribution,
	      just  within  the	 source	 code repository. It is	used to	ensure
	      that the solution	of your	level is still possible	after we  made
	      changes to the program. This way we limit	possible frustration.

       Non-compressed:
	      Do  only	send  non-compressed level sets. We need those for the
	      inclusion	in the source. And we need those for  possible	future
	      updates.

       Index: Use  the	index  file to reorder levels, don't rename the	files.
	      This way inserting a level becomes very easy.

   Graphics
       We have graphics	for most themes, but not for all. Those	themes do have
       some foreground graphics, but their background tiles are	all black. You
       are very	much invited to	create and to improve the graphics. Even  more
       important,  though,  is	the  creation  of a new	main figure. In	either
       case, please contact us if you are interested.

       The backgrounds are made	out of 20x13 tiles. Each tile has  a  size  of
       40x48 pixel. The	reason for that	is the non square pixel	of the 320x200
       resolution  of  the  original game. For each theme there	is a PNG image
       file containing all the blocks that may be used by the levels. To  make
       it  possible  to	 place	the blocks more	freely into the	PNG file a LUA
       file accompanies	the image. This	LUA file contains the block  positions
       of all the used blocks.

       It  is already implemented to use transparency within the blocks. Right
       now  you	can stack up to	8 layers, but if necessary this	 can  be  made
       dynamic.

       It is also planned to have something like animated tiles, but they have
       to  be kept at a	low count. Not too many	frames and not too many	anima-
       tions. They are not intended to make the	 background  dynamic,  but  to
       rather  be  a little finishing touch to the graphics. Possibilities are
       trees that move from time to time  in  a	 breeze,  a  bird  that	 sails
       through the sky from time to time, and so on.

       The  figure is more complicated.	The image figure.png contains all pos-
       sible animation images for the figure, one animation below  the	other.
       On  request  we	can  provide an	additional GIMP	image that contains in
       separate	layers possible	surroundings of	the figure in different	anima-
       tion frames (like ladders, steps, ground, a carried domino, and so on).
       We will happily provide that image to an	interested artist.

CREDITS
       We want to thank	the developers of the original game for	making such  a
       nice little game.

							       DOMINO-CHAIN(6)

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