Mercurial > hg > early-roguelike
annotate srogue/chase.c @ 245:e7aab31362af
Rogue V[345], Super-Rogue: Fix violet fungi/venus flytraps.
Violet fungi (renamed venus flytraps in Rogue V5) do an increasing
amount of damage each time they hit. If they miss, you still suffer
the same number of HP. This worked by keeping a counter and printing
new damage strings into monsters[5].m_stats.s_dmg, which is the
"prototype" of that particular monster.
Each individual monster has its own damage string. Apparently these
were once char *, pointing to the same string as the prototype. When
the s_dmg member was changed to be an internal char array, changing the
prototype's damage string no longer had any effect on actual monsters.
As a result, flytraps did no damage on a hit, or only one point in V5.
The mechanism for doing damage on a miss continued to work.
This has been fixed by overwriting the individual monster's damage
string instead of the prototype's. It is now no longer necessary to
reset the damage string when the flytrap is killed. The method for
resetting it when the hero teleports away had to be modified. Comments
referencing the long-unused xstr have been removed.
author | John "Elwin" Edwards |
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date | Sun, 01 May 2016 19:39:56 -0400 |
parents | 94a0d9dd5ce1 |
children | e52a8a7ad4c5 |
rev | line source |
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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 <stdlib.h> |
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18 #include "rogue.h" |
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19 #include "rogue.ext" |
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20 |
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21 #define FARAWAY 32767 |
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22 #define RDIST(a, b) (DISTANCE((a)->y, (a)->x, (b).y, (b).x)) |
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23 |
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24 int do_chase(struct linked_list *mon); |
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25 int chase(struct thing *tp, struct coord *ee, bool runaway, bool dofight); |
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26 |
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27 struct coord ch_ret; /* Where chasing takes you */ |
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28 |
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29 /* |
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30 * runners: |
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31 * Make all the running monsters move. |
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32 */ |
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33 void |
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34 runners(void) |
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35 { |
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36 reg struct thing *tp; |
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37 reg struct linked_list *mon,*nextmon; |
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38 |
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39 for (mon = mlist; mon != NULL; mon = nextmon) { |
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40 tp = THINGPTR(mon); |
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41 nextmon = next(mon); |
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42 if (off(*tp, ISHELD) && on(*tp, ISRUN)) { |
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43 if (tp->t_nomove > 0) |
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44 if (--tp->t_nomove > 0) |
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45 continue; |
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46 if (on(*tp, ISHASTE)) |
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47 if (do_chase(mon) == -1) |
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48 continue; |
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49 if (off(*tp, ISSLOW) || tp->t_turn) |
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50 if (do_chase(mon) == -1) |
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51 continue; |
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52 tp->t_turn ^= TRUE; |
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53 } |
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54 } |
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55 } |
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56 |
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57 |
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58 /* |
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59 * do_chase: |
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60 * Make one thing chase another. |
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61 */ |
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62 int |
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63 do_chase(struct linked_list *mon) |
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64 { |
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65 reg struct thing *th; |
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66 reg struct room *rer, *ree, *rxx; |
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67 reg int mindist, i, dist; |
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68 struct stats *st; |
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69 bool stoprun = FALSE, ondoor = FALSE, link = FALSE; |
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70 char runaway, dofight, wound, sch, ch; |
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71 struct coord this; |
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72 struct trap *trp; |
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73 |
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74 th = THINGPTR(mon); |
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75 wound = th->t_flags & ISWOUND; |
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76 if (wound) |
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77 mindist = 0; |
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78 else |
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79 mindist = FARAWAY; |
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80 runaway = wound; |
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81 dofight = !runaway; |
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82 rer = th->t_room; |
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83 if (th->t_type == 'V') { |
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84 if (rer != NULL && !rf_on(rer, ISDARK)) { |
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85 /* |
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86 * Vampires can't stand the light |
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87 */ |
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88 if (cansee(th->t_pos.y, th->t_pos.x)) |
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89 msg("The vampire vaporizes into thin air !"); |
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90 killed(mon, FALSE); |
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91 return(-1); |
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92 } |
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93 } |
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94 ree = roomin(th->t_dest); /* room of chasee */ |
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95 this = *th->t_dest; |
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96 /* |
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97 * If the object of our desire is in a different |
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98 * room, then run to the door nearest to our goal. |
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99 */ |
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100 if (mvinch(th->t_pos.y, th->t_pos.x) == DOOR) |
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101 ondoor = TRUE; |
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102 rxx = NULL; |
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