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annotate arogue5/monsters.c @ 299:74351bf23e5e

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Fix another pointer bug related to object stacks.
author John "Elwin" Edwards
date Sun, 11 Feb 2018 15:37:33 -0500
parents 56e748983fa8
children e52a8a7ad4c5
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1 /*
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2 * File with various monster functions in it
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3 *
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4 * Advanced Rogue
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5 * Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
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6 * All rights reserved.
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7 *
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8 * Based on "Rogue: Exploring the Dungeons of Doom"
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9 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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10 * All rights reserved.
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11 *
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12 * See the file LICENSE.TXT for full copyright and licensing information.
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13 */
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14
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15 #include "curses.h"
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16 #include "rogue.h"
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17 #include <stdlib.h>
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18 #include <ctype.h>
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19 #include <string.h>
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20
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21
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22 /*
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23 * Check_residue takes care of any effect of the monster
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24 */
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25 void
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26 check_residue(struct thing *tp)
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27 {
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28 /*
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29 * Take care of special abilities
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30 */
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31 if (on(*tp, DIDHOLD) && (--hold_count == 0)) turn_off(player, ISHELD);
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32
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33 /* If it has lowered player, give him back a level */
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34 if (on(*tp, DIDDRAIN)) raise_level(FALSE);
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35
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36 /* If frightened of this monster, stop */
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37 if (on(player, ISFLEE) &&
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38 player.t_dest == &tp->t_pos) turn_off(player, ISFLEE);
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39
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40 /* If monster was suffocating player, stop it */
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41 if (on(*tp, DIDSUFFOCATE)) extinguish(suffocate);
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42
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43 /* If something with fire, may darken */
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44 if (on(*tp, HASFIRE)) {
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45 register struct room *rp=roomin(&tp->t_pos);
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46 register struct linked_list *fire_item;
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47
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48 if (rp) {
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49 for (fire_item = rp->r_fires; fire_item != NULL;
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50 fire_item = next(fire_item)) {
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51 if (THINGPTR(fire_item) == tp) {
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52 detach(rp->r_fires, fire_item);
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53 destroy_item(fire_item);
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54 if (rp->r_fires == NULL) {
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55 rp->r_flags &= ~HASFIRE;
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56 if (cansee(tp->t_pos.y, tp->t_pos.x)) light(&hero);
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57 }
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58 break;
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59 }
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60 }
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61 }
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62 }
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63 }
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64
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65 /*
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66 * Creat_mons creates the specified monster -- any if 0
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67 * person: Where to create next to
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68 */
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69
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70 bool
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71 creat_mons(struct thing *person, short monster, bool report)
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72 {
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73 struct linked_list *nitem;
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74 register struct thing *tp;
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75 struct room *rp;
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76 coord *mp;
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77
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78 if (levtype == POSTLEV)
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79 return(FALSE);
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80 if ((mp = fallpos(&(person->t_pos), FALSE, 2)) != NULL) {
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81 nitem = new_item(sizeof (struct thing));
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82 new_monster(nitem,
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83 monster == 0 ? randmonster(FALSE, FALSE)
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84 : monster,
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85 mp,
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86 TRUE);
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87 tp = THINGPTR(nitem);
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88 runto(tp, &hero);
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89 tp->t_no_move = 1; /* since it just got here, it is disoriented */
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90 carry_obj(tp, monsters[tp->t_index].m_carry/2); /* only half chance */
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91 if (on(*tp, HASFIRE)) {
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92 rp = roomin(&tp->t_pos);
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93 if (rp) {
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94 register struct linked_list *fire_item;
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95
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96 /* Put the new fellow in the room list */
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97 fire_item = creat_item();
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98 ldata(fire_item) = (char *) tp;
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99 attach(rp->r_fires, fire_item);
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100
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101 rp->r_flags |= HASFIRE;
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