projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 9758240b KM |
1 | /* |
| 2 | * Copyright (c) 1980 Regents of the University of California. | |
| e9fb6bea KB |
3 | * All rights reserved. |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms are permitted | |
| d99e6414 KB |
6 | * provided that the above copyright notice and this paragraph are |
| 7 | * duplicated in all such forms and that any documentation, | |
| 8 | * advertising materials, and other materials related to such | |
| 9 | * distribution and use acknowledge that the software was developed | |
| 10 | * by the University of California, Berkeley. The name of the | |
| 11 | * University may not be used to endorse or promote products derived | |
| 12 | * from this software without specific prior written permission. | |
| 13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
| 14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
| 15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
| 9758240b KM |
16 | */ |
| 17 | ||
| 13afb696 | 18 | #ifndef lint |
| d99e6414 | 19 | static char sccsid[] = "@(#)visual.c 5.3 (Berkeley) %G%"; |
| e9fb6bea | 20 | #endif /* not lint */ |
| 13afb696 KM |
21 | |
| 22 | # include "trek.h" | |
| 23 | ||
| 24 | /* | |
| 25 | ** VISUAL SCAN | |
| 26 | ** | |
| 27 | ** A visual scan is made in a particular direction of three sectors | |
| 28 | ** in the general direction specified. This takes time, and | |
| 29 | ** Klingons can attack you, so it should be done only when sensors | |
| 30 | ** are out. | |
| 31 | */ | |
| 32 | ||
| 33 | /* This struct[] has the delta x, delta y for particular directions */ | |
| 06d69904 | 34 | struct xy Visdelta[11] = |
| 13afb696 KM |
35 | { |
| 36 | -1, -1, | |
| 37 | -1, 0, | |
| 38 | -1, 1, | |
| 39 | 0, 1, | |
| 40 | 1, 1, | |
| 41 | 1, 0, | |
| 42 | 1, -1, | |
| 43 | 0, -1, | |
| 44 | -1, -1, | |
| 45 | -1, 0, | |
| 46 | -1, 1 | |
| 47 | }; | |
| 48 | ||
| 49 | visual() | |
| 50 | { | |
| 51 | register int ix, iy; | |
| 52 | int co; | |
| 53 | register struct xy *v; | |
| 54 | ||
| 55 | co = getintpar("direction"); | |
| 56 | if (co < 0 || co > 360) | |
| 57 | return; | |
| 58 | co = (co + 22) / 45; | |
| 59 | v = &Visdelta[co]; | |
| 60 | ix = Ship.sectx + v->x; | |
| 61 | iy = Ship.secty + v->y; | |
| 62 | if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS) | |
| 63 | co = '?'; | |
| 64 | else | |
| 65 | co = Sect[ix][iy]; | |
| 66 | printf("%d,%d %c ", ix, iy, co); | |
| 67 | v++; | |
| 68 | ix = Ship.sectx + v->x; | |
| 69 | iy = Ship.secty + v->y; | |
| 70 | if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS) | |
| 71 | co = '?'; | |
| 72 | else | |
| 73 | co = Sect[ix][iy]; | |
| 74 | printf("%c ", co); | |
| 75 | v++; | |
| 76 | ix = Ship.sectx + v->x; | |
| 77 | iy = Ship.secty + v->y; | |
| 78 | if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS) | |
| 79 | co = '?'; | |
| 80 | else | |
| 81 | co = Sect[ix][iy]; | |
| 82 | printf("%c %d,%d\n", co, ix, iy); | |
| 83 | Move.time = 0.05; | |
| 84 | Move.free = 0; | |
| 85 | } |