1BSD-FBG(6) BSD Games Manual BSD-FBG(6)
2
4 bsd-fbg — a falling block game
5
7 bsd-fbg [-ps] [-k keys] [-l level]
8
10 The bsd-fbg command runs a display-based game which must be played on a
11 CRT terminal. The object is to fit the shapes together forming complete
12 rows, which then vanish. When the shapes fill up to the top, the game
13 ends. You can optionally select a level of play, or custom-select con‐
14 trol keys.
15 The default level of play is 2.
17 The default control keys are as follows:
19 j move left
21 k rotate 1/4 turn counterclockwise
22 l move right
23 ⟨space⟩ drop
24 p pause
25 q quit
26 The options are as follows:
28 -k The default control keys can be changed using the -k option. The
30 keys argument must have the six keys in order, and, remember to
31 quote any space or tab characters from the shell. For example:
32 bsd-fbg -l 2 -k 'jkl pq'
34 will play the default games, i.e. level 2 and with the default
36 control keys. The current key settings are displayed at the bot‐
37 tom of the screen during play.
38 -l Select a level of play.
40 -s Display the top scores.
42 -p Switch on previewing of the shape that will appear next.
44
46 At the start of the game, a shape will appear at the top of the screen,
47 falling one square at a time. The speed at which it falls is determined
48 directly by the level: if you select level 2, the blocks will fall twice
49 per second; at level 9, they fall 9 times per second. (As the game goes
50 on, things speed up, no matter what your initial selection.) When this
51 shape “touches down” on the bottom of the field, another will appear at
52 the top.
53 You can move shapes to the left or right, rotate them counterclockwise,
55 or drop them to the bottom by pressing the appropriate keys. As you fit
56 them together, completed horizontal rows vanish, and any blocks above
57 fall down to fill in. When the blocks stack up to the top of the screen,
58 the game is over.
59
61 You get one point for every block you fit into the stack, and one point
62 for every space a block falls when you hit the drop key. (Dropping the
63 blocks is therefore a good way to increase your score.) Your total score
64 is the product of the level of play and your accumulated points -- 200
65 points on level 3 gives you a score of 600. Each player gets at most one
66 entry on any level, for a total of nine scores in the high scores file.
67 Players who no longer have accounts are limited to one score. Also,
68 scores over 5 years old are expired. The exception to these conditions
69 is that the highest score on a given level is always kept, so that fol‐
70 lowing generations can pay homage to those who have wasted serious
71 amounts of time.
72 The score list is produced at the end of the game. The printout includes
74 each player's overall ranking, name, score, and how many points were
75 scored on what level. Scores which are the highest on a given level are
76 marked with asterisks “*”.
77
79 /var/games/bsd-fbg.scores high score file
80
82 The higher levels are unplayable without a fast terminal connection.
83
85 Adapted from a 1989 International Obfuscated C Code Contest winner by
86 Chris Torek and Darren F. Provine.
87 Manual adapted from the original entry written by Nancy L. Tinkham and
89 Darren F. Provine.
90 Code for previewing next shape added by Hubert Feyrer in 1999.
92BSD May 31, 1993 BSD