Annotation of src/games/atc/atc.6, Revision 1.24
1.24 ! wiz 1: .\" $NetBSD: atc.6,v 1.23 2015/07/23 01:19:20 pgoyette Exp $
1.3 cgd 2: .\"
3: .\" Copyright (c) 1990, 1993
4: .\" The Regents of the University of California. All rights reserved.
1.1 cgd 5: .\"
6: .\" This code is derived from software contributed to Berkeley by
7: .\" Ed James.
8: .\"
9: .\" Redistribution and use in source and binary forms, with or without
10: .\" modification, are permitted provided that the following conditions
11: .\" are met:
12: .\" 1. Redistributions of source code must retain the above copyright
13: .\" notice, this list of conditions and the following disclaimer.
14: .\" 2. Redistributions in binary form must reproduce the above copyright
15: .\" notice, this list of conditions and the following disclaimer in the
16: .\" documentation and/or other materials provided with the distribution.
1.19 agc 17: .\" 3. Neither the name of the University nor the names of its contributors
1.1 cgd 18: .\" may be used to endorse or promote products derived from this software
19: .\" without specific prior written permission.
20: .\"
21: .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22: .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23: .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24: .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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32: .\"
1.3 cgd 33: .\" @(#)atc.6 8.1 (Berkeley) 5/31/93
1.1 cgd 34: .\"
1.10 wiz 35: .\" Copyright (c) 1986 Ed James. All rights reserved.
1.1 cgd 36: .\"
1.21 wiz 37: .Dd January 1, 2004
1.5 sommerfe 38: .Dt ATC 6
1.11 wiz 39: .Os
1.5 sommerfe 40: .Sh NAME
41: .Nm atc
42: .Nd air traffic controller game
43: .Sh SYNOPSIS
44: .Nm atc
45: .Op Fl u?lstp
46: .Op Fl gf Ar "game name"
47: .Op Fl r Ar "random seed"
48: .Sh DESCRIPTION
1.9 lukem 49: .Nm
1.1 cgd 50: lets you try your hand at the nerve wracking duties of the air traffic
1.15 wiz 51: controller without endangering the lives of millions of travelers each year.
1.1 cgd 52: Your responsibilities require you to direct the flight of jets
53: and prop planes into and out of the flight arena and airports.
54: The speed (update time) and frequency of the planes depend on the
55: difficulty of the chosen arena.
1.5 sommerfe 56: .Sh OPTIONS
57: .Bl -tag -width flag
58: .It Fl u
1.1 cgd 59: Print the usage line and exit.
1.15 wiz 60: .It Fl \&?
1.1 cgd 61: Same as
1.10 wiz 62: .Fl u .
1.5 sommerfe 63: .It Fl l
1.1 cgd 64: Print a list of available games and exit.
65: The first game name printed is the default game.
1.5 sommerfe 66: .It Fl s
1.1 cgd 67: Print the score list (formerly the Top Ten list).
1.5 sommerfe 68: .It Fl t
1.1 cgd 69: Same as
1.10 wiz 70: .Fl s .
1.5 sommerfe 71: .It Fl p
1.10 wiz 72: Print the path to the special directory where
1.9 lukem 73: .Nm
1.13 wiz 74: expects to find its private files.
75: This is used during the installation of the program.
1.5 sommerfe 76: .It Fl g Ar game
1.13 wiz 77: Play the named game.
78: If the game listed is not one of the ones printed from the
1.5 sommerfe 79: .Fl l
1.1 cgd 80: option, the default game is played.
1.5 sommerfe 81: .It Fl f Ar game
1.1 cgd 82: Same as
1.10 wiz 83: .Fl g .
1.5 sommerfe 84: .It Fl r Ar seed
1.13 wiz 85: Set the random seed.
86: The purpose of this flag is questionable.
1.5 sommerfe 87: .El
88: .Sh GOALS
1.10 wiz 89: Your goal in
1.9 lukem 90: .Nm
1.10 wiz 91: is to keep the game going as long as possible.
1.1 cgd 92: There is no winning state, except to beat the times of other players.
93: You will need to: launch planes at airports (by instructing them to
94: increase their altitude); land planes at airports (by instructing them to
95: go to altitude zero when exactly over the airport); and maneuver planes
1.10 wiz 96: out of exit points.
1.5 sommerfe 97: .Pp
1.1 cgd 98: Several things will cause the end of the game.
1.10 wiz 99: Each plane has a destination (see information area), and
1.1 cgd 100: sending a plane to the wrong destination is an error.
1.13 wiz 101: Planes can run out of fuel, or can collide.
102: Collision is defined as adjacency in all three dimensions.
103: A plane leaving the arena
1.1 cgd 104: in any other way than through its destination exit is an error as well.
1.5 sommerfe 105: .Pp
1.13 wiz 106: Scores are sorted in order of the number of planes safe.
107: The other statistics are provided merely for fun.
108: There is no penalty for
1.1 cgd 109: taking longer than another player (except in the case of ties).
1.5 sommerfe 110: .Pp
1.13 wiz 111: Suspending a game is not permitted.
112: If you get a talk message, tough.
1.15 wiz 113: When was the last time an Air Traffic Controller got called away to the phone?
1.14 wiz 114: .Sh THE DISPLAY
1.10 wiz 115: Depending on the terminal you run
1.9 lukem 116: .Nm
1.10 wiz 117: on, the screen will be divided into 4 areas.
1.1 cgd 118: It should be stressed that the terminal driver portion of the
119: game was designed to be reconfigurable, so the display format can vary
1.17 wiz 120: depending on the version you are playing.
1.13 wiz 121: The descriptions here are based on the ascii version of the game.
122: The game rules and input format, however, should remain consistent.
1.1 cgd 123: Control-L redraws the screen, should it become muddled.
1.5 sommerfe 124: .Ss RADAR
1.1 cgd 125: The first screen area is the radar display, showing the relative locations
126: of the planes, airports, standard entry/exit points, radar
1.5 sommerfe 127: beacons, and ``lines'' which simply serve to aid you in guiding
1.10 wiz 128: the planes.
1.5 sommerfe 129: .Pp
1.13 wiz 130: Planes are shown as a single letter with an altitude.
131: If the numerical altitude is a single digit, then it represents
1.1 cgd 132: thousands of feet.
1.13 wiz 133: Some distinction is made between the prop planes and the jets.
134: On ascii terminals, prop planes are
1.1 cgd 135: represented by a upper case letter, jets by a lower case letter.
1.5 sommerfe 136: .Pp
1.1 cgd 137: Airports are shown as a number and some indication of the direction
1.10 wiz 138: planes must be going to land at the airport.
1.12 ross 139: On ascii terminals, this is one of `^', `\*[Gt]', `\*[Lt]', and `v', to indicate
1.1 cgd 140: north (0 degrees), east (90), west (270) and south (180), respectively.
1.15 wiz 141: The planes will also take off in this direction.
1.5 sommerfe 142: .Pp
1.1 cgd 143: Beacons are represented as circles or asterisks and a number.
144: Their purpose is to offer a place of easy reference to the plane pilots.
1.15 wiz 145: See
146: .Sx THE DELAY COMMAND
147: section below.
1.5 sommerfe 148: .Pp
1.10 wiz 149: Entry/exit points are displayed as numbers along the border of the
1.13 wiz 150: radar screen.
151: Planes will enter the arena from these points without warning.
152: These points have a direction associated with them, and
153: planes will always enter the arena from this direction.
154: On the ascii version of
1.16 wiz 155: .Nm ,
1.13 wiz 156: this direction is not displayed.
157: It will become apparent what this direction is as the game progresses.
1.5 sommerfe 158: .Pp
1.1 cgd 159: Incoming planes will always enter at the same altitude: 7000 feet.
1.10 wiz 160: For a plane to successfully depart through an entry/exit point,
1.1 cgd 161: it must be flying at 9000 feet.
162: It is not necessary for the planes to be flying in any particular
163: direction when they leave the arena (yet).
1.14 wiz 164: .Ss INFORMATION AREA
1.1 cgd 165: The second area of the display is the information area, which lists
166: the time (number of updates since start), and the number of planes you
167: have directed safely out of the arena.
1.10 wiz 168: Below this is a list of planes currently in the air, followed by a
1.1 cgd 169: blank line, and then a list of planes on the ground (at airports).
1.10 wiz 170: Each line lists the plane name and its current altitude,
1.1 cgd 171: an optional asterisk indicating low fuel, the plane's destination,
1.13 wiz 172: and the plane's current command.
173: Changing altitude is not considered
174: to be a command and is therefore not displayed.
175: The following are some possible information lines:
1.5 sommerfe 176: .Pp
1.18 wiz 177: .Bd -literal -offset indent
1.5 sommerfe 178: B4*A0: Circle @ b1
179: g7 E4: 225
180: .Ed
181: .Pp
1.13 wiz 182: The first example shows a prop plane named `B' that is flying at 4000 feet.
183: It is low on fuel (note the `*').
184: Its destination is Airport #0.
185: The next command it expects to do is circle when it reaches Beacon #1.
1.10 wiz 186: The second example shows a jet named `g' at 7000 feet, destined for
1.13 wiz 187: Exit #4.
188: It is just now executing a turn to 225 degrees (South-West).
1.14 wiz 189: .Ss INPUT AREA
1.13 wiz 190: The third area of the display is the input area.
191: It is here that your input is reflected.
1.15 wiz 192: See the
193: .Sx INPUT
194: heading of this manual for more details.
1.14 wiz 195: .Ss AUTHOR AREA
1.1 cgd 196: This area is used simply to give credit where credit is due. :-)
1.5 sommerfe 197: .Sh INPUT
1.13 wiz 198: A command completion interface is built into the game.
199: At any time, typing `?' will list possible input characters.
1.1 cgd 200: Typing a backspace (your erase character) backs up, erasing the last part
1.13 wiz 201: of the command.
202: When a command is complete, a return enters it, and
203: any semantic checking is done at that time.
204: If no errors are detected, the command is sent to the appropriate plane.
205: If an error is discovered
1.1 cgd 206: during the check, the offending statement will be underscored and a
207: (hopefully) descriptive message will be printed under it.
1.5 sommerfe 208: .Pp
1.1 cgd 209: The command syntax is broken into two parts:
1.15 wiz 210: .Em Immediate Only
1.10 wiz 211: and
1.5 sommerfe 212: .Em Delayable
1.1 cgd 213: commands.
1.15 wiz 214: .Em Immediate Only
1.13 wiz 215: commands happen on the next update.
1.5 sommerfe 216: .Em Delayable
1.1 cgd 217: commands also happen on the next update unless they
1.10 wiz 218: are followed by an optional predicate called the
219: .Em Delay
1.1 cgd 220: command.
1.5 sommerfe 221: .Pp
1.10 wiz 222: In the following tables, the syntax
1.5 sommerfe 223: .Em [0\-9]
1.10 wiz 224: means any single digit, and
1.15 wiz 225: .Aq Em dir
1.5 sommerfe 226: refers to a direction, given by the keys around the `s' key: ``wedcxzaq''.
227: In absolute references, `q' refers to North-West or 315 degrees, and `w'
1.10 wiz 228: refers to North, or 0 degrees.
1.15 wiz 229: In relative references, `q' refers to \-45 degrees or 45 degrees left, and `w'
1.1 cgd 230: refers to 0 degrees, or no change in direction.
1.5 sommerfe 231: .Pp
1.13 wiz 232: All commands start with a plane letter.
1.15 wiz 233: This indicates the recipient of the command.
1.13 wiz 234: Case is ignored.
1.14 wiz 235: .Ss IMMEDIATE ONLY COMMANDS
1.5 sommerfe 236: .Bl -tag -width "aaaa"
237: .It "a [ cd+- ]" Em number
238: Altitude: Change a plane's altitude, possibly requesting takeoff.
239: `+' and `-' are the same as `c' and `d'.
240: .Bl -tag -width "aaaaaaaaaa" -compact
241: .It a Em number
242: Climb or descend to the given altitude (in thousands of feet).
243: .It ac Em number
244: Climb: relative altitude change.
245: .It ad Em number
246: Descend: relative altitude change.
247: .El
248: .It m
1.13 wiz 249: Mark: Display in highlighted mode.
1.15 wiz 250: Plane and command information is displayed normally.
1.5 sommerfe 251: .It i
1.13 wiz 252: Ignore: Do not display highlighted.
1.15 wiz 253: Command is displayed as a line of dashes if there is no command.
1.5 sommerfe 254: .It u
1.10 wiz 255: Unmark: Same as ignore, but if a delayed command is processed,
1.13 wiz 256: the plane will become marked.
1.15 wiz 257: This is useful if you want to forget about a plane during part,
258: but not all, of its journey.
1.5 sommerfe 259: .El
1.14 wiz 260: .Ss DELAYABLE COMMANDS
1.5 sommerfe 261: .Bl -tag -width "aaaa"
262: .It "c [ lr ]"
263: Circle: Have the plane circle.
264: .Bl -tag -width "aaaaaaaaaa" -compact
265: .It cl
266: Left: Circle counterclockwise.
267: .It cr
268: Right: Circle clockwise (default).
269: .El
270: .It "t [ l-r+LR ] [ dir ] or tt [ abe* ]" Em number
271: Turn: Change direction.
272: .Bl -tag -width "aaaaaaaaaa" -compact
1.12 ross 273: .It "t\*[Lt]dir\*[Gt]"
1.5 sommerfe 274: Turn to direction: Turn to the absolute compass heading given.
1.1 cgd 275: The shortest turn will be taken.
1.5 sommerfe 276: .It "tl [ dir ]"
277: Left: Turn counterclockwise: 45 degrees by default, or the amount
1.15 wiz 278: specified in
279: .Aq dir
280: (not
1.5 sommerfe 281: .Em to
1.15 wiz 282: .Aq dir . )
283: `w' (0 degrees) is no turn.
284: `e' is 45 degrees; `q' gives \-45 degrees counterclockwise, that is,
285: 45 degrees clockwise.
1.5 sommerfe 286: .It "t- [ dir ]"
1.10 wiz 287: Same as left.
1.5 sommerfe 288: .It "tr [ dir ]"
1.15 wiz 289: Right: Turn clockwise, 45 degrees by default, or the amount specified in
290: .Aq dir .
1.5 sommerfe 291: .It "t+ [ dir ]"
292: Same as right.
293: .It tL
294: Hard left: Turn counterclockwise 90 degrees.
295: .It tR
296: Hard right: Turn clockwise 90 degrees.
297: .It "tt [abe*]"
1.13 wiz 298: Towards: Turn towards a beacon, airport or exit.
299: The turn is just an estimate.
1.5 sommerfe 300: .It "tta" Em number
301: Turn towards the given airport.
302: .It "ttb" Em number
303: Turn towards the specified beacon.
304: .It "tte" Em number
305: Turn towards an exit.
306: .It "tt*" Em number
307: Same as ttb.
308: .El
309: .El
310: .Ss THE DELAY COMMAND
1.10 wiz 311: The
1.5 sommerfe 312: .Em Delay
1.15 wiz 313: (a/@) command may be appended to any
1.10 wiz 314: .Em Delayable
1.13 wiz 315: command.
1.15 wiz 316: It allows the controller to instruct a plane to do an action when the
317: plane reaches a particular beacon (or other objects in future versions).
1.5 sommerfe 318: .Bl -tag -width "aaaa"
319: .It ab Em number
1.15 wiz 320: Do the delayable command when the plane reaches the specified beacon.
1.13 wiz 321: The `b' for ``beacon'' is redundant to allow for expansion.
1.5 sommerfe 322: `@' can be used instead of `a'.
323: .El
1.14 wiz 324: .Ss MARKING, UNMARKING AND IGNORING
1.10 wiz 325: Planes are
1.5 sommerfe 326: .Em marked
1.13 wiz 327: by default when they enter the arena.
328: This means they are displayed in highlighted mode on the radar display.
329: A plane may also be either
1.5 sommerfe 330: .Em unmarked
1.1 cgd 331: or
1.10 wiz 332: .Em ignored .
1.1 cgd 333: An
1.7 jhawk 334: .Em ignored
1.1 cgd 335: plane is drawn in unhighlighted mode, and a line of dashes is displayed in
1.13 wiz 336: the command field of the information area.
337: The plane will remain this way until a mark command has been issued.
338: Any other command will be issued, but the command line will return to a
339: line of dashes when the command is completed.
1.5 sommerfe 340: .Pp
1.1 cgd 341: An
1.7 jhawk 342: .Em unmarked
343: plane is treated the same as an
1.5 sommerfe 344: .Em ignored
1.7 jhawk 345: plane, except that it will automatically switch to
1.5 sommerfe 346: .Em marked
1.13 wiz 347: status when a delayed command has been processed.
348: This is useful if you want to forget about a plane for a while, but its
349: flight path has not yet been completely set.
1.5 sommerfe 350: .Pp
1.10 wiz 351: As with all of the commands, marking, unmarking and ignoring will take effect
1.13 wiz 352: at the beginning of the next update.
353: Do not be surprised if the plane does
1.1 cgd 354: not immediately switch to unhighlighted mode.
1.5 sommerfe 355: .Ss EXAMPLES
356: .Bl -tag -width gtte4ab2 -offset indent
357: .It atlab1
358: Plane A: turn left at beacon #1
359: .It cc
360: Plane C: circle
361: .It gtte4ab2
362: Plane G: turn towards exit #4 at beacon #2
363: .It ma+2
364: Plane M: altitude: climb 2000 feet
365: .It stq
366: Plane S: turn to 315
367: .It xi
368: Plane X: ignore
1.6 hubertf 369: .El
1.14 wiz 370: .Sh OTHER INFORMATION
1.5 sommerfe 371: .Bl -bullet
1.10 wiz 372: .It
1.1 cgd 373: Jets move every update; prop planes move every other update.
1.5 sommerfe 374: .It
1.17 wiz 375: All planes turn at most 90 degrees per movement.
1.5 sommerfe 376: .It
1.1 cgd 377: Planes enter at 7000 feet and leave at 9000 feet.
1.5 sommerfe 378: .It
1.1 cgd 379: Planes flying at an altitude of 0 crash if they are not over an airport.
1.5 sommerfe 380: .It
1.1 cgd 381: Planes waiting at airports can only be told to take off (climb in altitude).
1.20 jsm 382: .It
383: Pressing return (that is, entering an empty command) will perform the
384: next update immediately.
385: This allows you to ``fast forward''
386: the game clock if nothing interesting is happening.
1.6 hubertf 387: .El
1.14 wiz 388: .Sh NEW GAMES
1.10 wiz 389: The
1.5 sommerfe 390: .Pa Game_List
1.13 wiz 391: file lists the currently available play fields.
392: New field description file names must be placed in this file to be playable.
393: If a player specifies a game not in this file, his score will not be logged.
394: .Pp
395: The game field description files are broken into two parts.
1.15 wiz 396: The first part is the definition section.
1.13 wiz 397: Here, the four tunable game parameters must be set.
398: These variables are set with the syntax:
1.5 sommerfe 399: .Pp
400: .Dl "variable = number;"
401: .Pp
1.10 wiz 402: Variable may be one of:
403: .Li update ,
1.1 cgd 404: indicating the number of seconds between forced updates;
1.10 wiz 405: .Li newplane ,
1.1 cgd 406: indicating (about) the number of updates between new plane entries;
1.10 wiz 407: .Li width ,
1.5 sommerfe 408: indicating the width of the play field; or
1.10 wiz 409: .Li height ,
1.1 cgd 410: indicating the height of the play field.
1.5 sommerfe 411: .Pp
1.1 cgd 412: The second part of the field description files describes the locations
413: of the exits, the beacons, the airports and the lines.
414: The syntax is as follows:
1.5 sommerfe 415: .Pp
416: .Bd -literal -offset indent
417: .Bl -tag -width airport: -compact
1.10 wiz 418: .It beacon :
1.5 sommerfe 419: (x y) ... ;
1.10 wiz 420: .It airport :
1.5 sommerfe 421: (x y direction) ... ;
1.10 wiz 422: .It exit :
1.5 sommerfe 423: (x y direction) ... ;
1.10 wiz 424: .It line :
1.5 sommerfe 425: [ (x1 y1) (x2 y2) ] ... ;
426: .El
427: .Ed
428: .Pp
1.15 wiz 429: For beacons, a simple x, y coordinate pair is used (enclosed in parenthesis).
1.13 wiz 430: Airports and exits require a third value, which is one of the directions
1.10 wiz 431: .Em wedcxzaq .
1.1 cgd 432: For airports, this is the direction that planes must be going to take
1.17 wiz 433: off and land, and for exits, this is the direction that planes will be
434: going when they
1.5 sommerfe 435: .Em enter
1.13 wiz 436: the arena.
437: This may not seem intuitive, but as there is no restriction on
1.1 cgd 438: direction of exit, this is appropriate.
439: Lines are slightly different, since they need two coordinate pairs to
1.13 wiz 440: specify the line endpoints.
441: These endpoints must be enclosed in square brackets.
1.5 sommerfe 442: .Pp
1.13 wiz 443: All statements are semi-colon (;) terminated.
444: Multiple item statements accumulate.
445: Each definition must occur exactly once, before any item statements.
446: Comments begin with a hash (#) symbol and terminate with a newline.
447: The coordinates are between zero and width-1 and height-1 inclusive.
448: All of the exit coordinates must lie on the borders, and
1.1 cgd 449: all of the beacons and airports must lie inside of the borders.
1.10 wiz 450: Line endpoints may be anywhere within the field, so long as
451: the lines are horizontal, vertical or
1.5 sommerfe 452: .Em exactly
453: diagonal.
1.14 wiz 454: .Ss FIELD FILE EXAMPLE
1.18 wiz 455: .Bd -literal
1.1 cgd 456: # This is the default game.
457:
458: update = 5;
1.23 pgoyette 459: newplane = 10;
1.1 cgd 460: width = 30;
461: height = 21;
462:
463: exit: ( 12 0 x ) ( 29 0 z ) ( 29 7 a ) ( 29 17 a )
464: ( 9 20 e ) ( 0 13 d ) ( 0 7 d ) ( 0 0 c ) ;
465:
466: beacon: ( 12 7 ) ( 12 17 ) ;
467:
468: airport: ( 20 15 w ) ( 20 18 d ) ;
469:
470: line: [ ( 1 1 ) ( 6 6 ) ]
471: [ ( 12 1 ) ( 12 6 ) ]
472: [ ( 13 7 ) ( 28 7 ) ]
473: [ ( 28 1 ) ( 13 16 ) ]
474: [ ( 1 13 ) ( 11 13 ) ]
475: [ ( 12 8 ) ( 12 16 ) ]
476: [ ( 11 18 ) ( 10 19 ) ]
477: [ ( 13 17 ) ( 28 17 ) ]
478: [ ( 1 7 ) ( 11 7 ) ] ;
1.5 sommerfe 479:
480: .Ed
481: .Sh FILES
1.13 wiz 482: Files are kept in a special directory.
1.15 wiz 483: See the
484: .Sx OPTIONS
485: section for a way to print this path out.
1.13 wiz 486: It is normally
1.10 wiz 487: .Pa /usr/share/games/atc .
1.5 sommerfe 488: .Pp
489: This directory contains the file
1.10 wiz 490: .Pa Game_List ,
1.13 wiz 491: which holds the list of playable games, as well as the games themselves.
1.5 sommerfe 492: .Pp
1.10 wiz 493: The scores are kept in
494: .Pa /var/games/atc_score .
1.22 wiz 495: .Sh AUTHORS
1.24 ! wiz 496: .An Ed James ,
! 497: UC Berkeley:
! 498: .Aq Mt edjames@ucbvax.berkeley.edu ,
! 499: ucbvax!edjames
1.5 sommerfe 500: .Pp
1.1 cgd 501: This game is based on someone's description of the overall flavor
502: of a game written for some unknown PC many years ago, maybe.
1.5 sommerfe 503: .Sh BUGS
1.1 cgd 504: The screen sometimes refreshes after you have quit.
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