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blackboxgame

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blackboxgame: guessing game

NAME

blackboxgame - guessing game

SYNOPSIS

blackboxgame [--generate n] [--print wxh [--with-solutions] [--scale n] [--colour]] [game-parameters|game-ID|random-seed] blackboxgame --version

DESCRIPTION

(Note: the Debian version of this game is called blackboxgame to avoid clashing with the window manager blackbox.) A number of balls are hidden in a rectangular arena. You have to deduce the positions of the balls by firing lasers positioned at the edges of the arena and observing how their beams are deflected. Beams will travel straight from their origin until they hit the opposite side of the arena (at which point they emerge), unless affected by balls in one of the following ways: +

BLACK BOX CONTROLS

To fire a laser beam, left-click in a square around the edge of the arena. The results will be displayed immediately. Clicking or holding the left button on one of these squares will highlight the current go (or a previous go) to confirm the exit point for that laser, if applicable. To guess the location of a ball, left-click within the arena and a black circle will appear marking the guess; click again to remove the guessed ball. Locations in the arena may be locked against modification by right- clicking; whole rows and columns may be similarly locked by right- clicking in the laser square above/below that column, or to the left/right of that row. The cursor keys may also be used to move around the grid. Pressing the Enter key will fire a laser or add a new ball-location guess, and pressing Space will lock a cell, row, or column. When an appropriate number of balls have been guessed, a button will appear at the top-left corner of the grid; clicking that (with mouse or cursor) will check your guesses. If you click the 'check' button and your guesses are not correct, the game will show you the minimum information necessary to demonstrate this to you, so you can try again. If your ball positions are not consistent with the beam paths you already know about, one beam path will be circled to indicate that it proves you wrong. If your positions match all the existing beam paths but are still wrong, one new beam path will be revealed (written in red) which is not consistent with your current guesses. If you decide to give up completely, you can select Solve to reveal the actual ball positions. At this point, correctly-placed balls will be displayed as filled black circles, incorrectly-placed balls as filled black circles with red crosses, and missing balls as filled red circles. In addition, a red circle marks any laser you had already fired which is not consistent with your ball layout (just as when you press the 'check' button), and red text marks any laser you could have fired in order to distinguish your ball layout from the correct one. (All the actions described below are also available.)
BLACK BOX PARAMETERS
These parameters are available from the 'Custom...' option on the 'Type' menu. Width, Height Size of grid in squares. There are 2 x Width x Height lasers per grid, two per row and two per column. No. of balls Number of balls to place in the grid. This can be a single number, or a range (separated with a hyphen, like '2-6'), and determines the number of balls to place on the grid. The 'reveal' button is only enabled if you have guessed an appropriate number of balls; a guess using a different number to the original solution is still acceptable, if all the beam inputs and outputs match.
COMMON ACTIONS
These actions are all available from the 'Game' menu and via keyboard shortcuts, in addition to any game-specific actions. (On Mac OS X, to conform with local user interface standards, these actions are situated on the 'File' and 'Edit' menus instead.) New game ('N', Ctrl+'N') Starts a new game, with a random initial state. Restart game Resets the current game to its initial state. (This can be undone.) Load Loads a saved game from a file on disk. Save Saves the current state of your game to a file on disk. The Load and Save operations preserve your entire game history (so you can save, reload, and still Undo and Redo things you had done before saving). Print Where supported (currently only on Windows), brings up a dialog allowing you to print an arbitrary number of puzzles randomly generated from the current parameters, optionally including the current puzzle. (Only for puzzles which make sense to print, of course - it's hard to think of a sensible printable representation of Fifteen!) Undo ('U', Ctrl+'Z', Ctrl+'_') Undoes a single move. (You can undo moves back to the start of the session.) Redo ('R', Ctrl+'R') Redoes a previously undone move. Copy Copies the current state of your game to the clipboard in text format, so that you can paste it into (say) an e-mail client or a web message board if you're discussing the game with someone else. (Not all games support this feature.) Solve Transforms the puzzle instantly into its solved state. For some games (Cube) this feature is not supported at all because it is of no particular use. For other games (such as Pattern), the solved state can be used to give you information, if you can't see how a solution can exist at all or you want to know where you made a mistake. For still other games (such as Sixteen), automatic solution tells you nothing about how to get to the solution, but it does provide a useful way to get there quickly so that you can experiment with set-piece moves and transformations. Some games (such as Solo) are capable of solving a game ID you have typed in from elsewhere. Other games (such as Rectangles) cannot solve a game ID they didn't invent themself, but when they did invent the game ID they know what the solution is already. Still other games (Pattern) can solve some external game IDs, but only if they aren't too difficult. The 'Solve' command adds the solved state to the end of the undo chain for the puzzle. In other words, if you want to go back to solving it yourself after seeing the answer, you can just press Undo. Quit ('Q', Ctrl+'Q') Closes the application entirely.

SPECIFYING GAMES WITH THE GAME ID

There are two ways to save a game specification out of a puzzle and recreate it later, or recreate it in somebody else's copy of the same puzzle. The 'Specific' and 'Random Seed' options from the 'Game' menu (or the 'File' menu, on Mac OS X) each show a piece of text (a 'game ID') which is sufficient to reconstruct precisely the same game at a later date. You can enter either of these pieces of text back into the program (via the same 'Specific' or 'Random Seed' menu options) at a later point, and it will recreate the same game. You can also use either one as a command line argument (on Windows or Unix); see below for more detail. The difference between the two forms is that a descriptive game ID is a literal description of the initial state of the game, whereas a random seed is just a piece of arbitrary text which was provided as input to the random number generator used to create the puzzle. This means that: +

THE 'TYPE' MENU

The 'Type' menu, if present, may contain a list of preset game settings. Selecting one of these will start a new random game with the parameters specified. The 'Type' menu may also contain a 'Custom' option which allows you to fine-tune game parameters. The parameters available are specific to each game and are described in the following sections.

SPECIFYING GAME PARAMETERS ON THE COMMAND LINE

(This section does not apply to the Mac OS X version.) The games in this collection deliberately do not ever save information on to the computer they run on: they have no high score tables and no saved preferences. (This is because I expect at least some people to play them at work, and those people will probably appreciate leaving as little evidence as possible!) However, if you do want to arrange for one of these games to default to a particular set of parameters, you can specify them on the command line. The easiest way to do this is to set up the parameters you want using the 'Type' menu (see above), and then to select 'Random Seed' from the 'Game' or 'File' menu (see above). The text in the 'Game ID' box will be composed of two parts, separated by a hash. The first of these parts represents the game parameters (the size of the playing area, for example, and anything else you set using the 'Type' menu). If you run the game with just that parameter text on the command line, it will start up with the settings you specified. For example: if you run Cube (see cube(6)), select 'Octahedron' from the 'Type' menu, and then go to the game ID selection, you will see a string of the form 'o2x2#338686542711620'. Take only the part before the hash ('o2x2'), and start Cube with that text on the command line: 'cube o2x2'. If you copy the entire game ID on to the command line, the game will start up in the specific game that was described. This is occasionally a more convenient way to start a particular game ID than by pasting it into the game ID selection box. (You could also retrieve the encoded game parameters using the 'Specific' menu option instead of 'Random Seed', but if you do then some options, such as the difficulty level in Solo, will be missing. See above for more details on this.)

UNIX COMMAND-LINE OPTIONS

(This section only applies to the Unix port.) In addition to being able to specify game parameters on the command line (see above), there are various other options: --game --load These options respectively determine whether the command-line argument is treated as specifying game parameters or a save file to load. Only one should be specified. If neither of these options is specified, a guess is made based on the format of the argument. --generate n If this option is specified, instead of a puzzle being displayed, a number of descriptive game IDs will be invented and printed on standard output. This is useful for gaining access to the game generation algorithms without necessarily using the frontend. If game parameters are specified on the command-line, they will be used to generate the game IDs; otherwise a default set of parameters will be used. The most common use of this option is in conjunction with --print, in which case its behaviour is slightly different; see below. --print wxh If this option is specified, instead of a puzzle being displayed, a printed representation of one or more unsolved puzzles is sent to standard output, in PostScript format. On each page of puzzles, there will be w across and h down. If there are more puzzles than wxh, more than one page will be printed. If --generate has also been specified, the invented game IDs will be used to generate the printed output. Otherwise, a list of game IDs is expected on standard input (which can be descriptive or random seeds; see above), in the same format produced by --generate. For example: net --generate 12 --print 2x3 7x7w | lpr will generate two pages of printed Net puzzles (each of which will have a 7x7 wrapping grid), and pipe the output to the lpr command, which on many systems will send them to an actual printer. There are various other options which affect printing; see below. --save file-prefix [ --save-suffix file-suffix ] If this option is specified, instead of a puzzle being displayed, saved-game files for one or more unsolved puzzles are written to files constructed from the supplied prefix and/or suffix. If --generate has also been specified, the invented game IDs will be used to generate the printed output. Otherwise, a list of game IDs is expected on standard input (which can be descriptive or random seeds; see above), in the same format produced by --generate. For example: net --generate 12 --save game --save-suffix .sav will generate twelve Net saved-game files with the names game0.sav to game11.sav. --version Prints version information about the game, and then quits. The following options are only meaningful if --print is also specified: --with-solutions The set of pages filled with unsolved puzzles will be followed by the solutions to those puzzles. --scale n Adjusts how big each puzzle is when printed. Larger numbers make puzzles bigger; the default is 1.0. --colour Puzzles will be printed in colour, rather than in black and white (if supported by the puzzle).
SEE ALSO
Full documentation in /usr/share/doc/sgt-puzzles/puzzles.txt.gz. BLACKBOXGAME(6)
 
 
 

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