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annotate srogue/chase.c @ 221:71cb5b647f2b

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Rogue V5: remove troublesome automatic platform detection. configure.ac used AC_CANONICAL_SYSTEM to guess the GNU system description triplets. The target description was substituted into the Makefile and formatted into the filename for the binary distribution tarball. But 'target' is only intended for cross-compilers. 'host_os' might have been a better choice. The tarball filename can still be changed manually, by running make with an argument of 'DESTSYS=systemname'. Cross-compiling may be more difficult now, but I am not certain that it worked properly previously, and due to pending autoconf changes, it was likely to break anyway. The top-level config.guess and config.sub are no longer needed, but they may reappear if better support for cross-compilation is added.
author John "Elwin" Edwards
date Fri, 12 Feb 2016 14:25:47 -0500
parents 2128c7dc8a40
children 94a0d9dd5ce1
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36
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1 /*
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2 * Code for one object to chase another
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3 *
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4 * @(#)chase.c 9.0 (rdk) 7/17/84
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5 *
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6 * Super-Rogue
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7 * Copyright (C) 1984 Robert D. Kindelberger
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8 * All rights reserved.
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9 *
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10 * Based on "Rogue: Exploring the Dungeons of Doom"
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11 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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12 * All rights reserved.
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13 *
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14 * See the file LICENSE.TXT for full copyright and licensing information.
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15 */
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16
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17 #include "rogue.h"
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18 #include "rogue.ext"
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19
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20 #define FARAWAY 32767
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21 #define RDIST(a, b) (DISTANCE((a)->y, (a)->x, (b).y, (b).x))
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22
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23 struct coord ch_ret; /* Where chasing takes you */
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24
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25 /*
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26 * runners:
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27 * Make all the running monsters move.
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28 */
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29 runners()
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30 {
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31 reg struct thing *tp;
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32 reg struct linked_list *mon,*nextmon;
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33
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34 for (mon = mlist; mon != NULL; mon = nextmon) {
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35 tp = THINGPTR(mon);
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36 nextmon = next(mon);
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37 if (off(*tp, ISHELD) && on(*tp, ISRUN)) {
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38 if (tp->t_nomove > 0)
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39 if (--tp->t_nomove > 0)
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40 continue;
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41 if (on(*tp, ISHASTE))
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42 if (do_chase(mon) == -1)
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43 continue;
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44 if (off(*tp, ISSLOW) || tp->t_turn)
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45 if (do_chase(mon) == -1)
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46 continue;
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47 tp->t_turn ^= TRUE;
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48 }
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49 }
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50 }
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51
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52
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53 /*
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54 * do_chase:
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55 * Make one thing chase another.
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56 */
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57 do_chase(mon)
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58 struct linked_list *mon;
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59 {
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60 reg struct thing *th;
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61 reg struct room *rer, *ree, *rxx;
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62 reg int mindist, i, dist;
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63 struct stats *st;
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64 bool stoprun = FALSE, ondoor = FALSE, link = FALSE;
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65 char runaway, dofight, wound, sch, ch;
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66 struct coord this;
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67 struct trap *trp;
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68
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69 th = THINGPTR(mon);
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70 wound = th->t_flags & ISWOUND;
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71 if (wound)
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72 mindist = 0;
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73 else
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74 mindist = FARAWAY;
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75 runaway = wound;
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76 dofight = !runaway;
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77 rer = th->t_room;
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78 if (th->t_type == 'V') {
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79 if (rer != NULL && !rf_on(rer, ISDARK)) {
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80 /*
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81 * Vampires can't stand the light
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82 */
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83 if (cansee(th->t_pos.y, th->t_pos.x))
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84 msg("The vampire vaporizes into thin air !");
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85 killed(mon, FALSE);
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86 return(-1);
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87 }
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88 }
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89 ree = roomin(th->t_dest); /* room of chasee */
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90 this = *th->t_dest;
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91 /*
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92 * If the object of our desire is in a different
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93 * room, then run to the door nearest to our goal.
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94 */
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95 if (mvinch(th->t_pos.y, th->t_pos.x) == DOOR)
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96 ondoor = TRUE;
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97 rxx = NULL;
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98 if (rer != NULL || ree != NULL) {
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99 /*
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100 * Monster not in room, hero in room. Run to closest door
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101 * in hero's room if not wounded. Run away if wounded.
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102 */
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103 if (rer == NULL && ree != NULL) {
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104 if (!wound)
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105 rxx = ree;
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