Mercurial > hg > early-roguelike
annotate arogue5/trader.c @ 227:696277507a2e
Rogue V4, V5: disable a cheat granting permanent monster detection.
In these two games, a potion of monster detection turns on the player's
SEEMONST flag. A fuse is set to call turn_see() to turn the flag back
off. But the save and restore functions do not recognize turn_see() and
fail to set the fuse up again.
When restoring, Rogue V4 merely sets the fuse's function to NULL and
leaves it burning. When it goes off, a segfault results. Rogue V5
clears all the fuse's fields, and the player retains the ability to see
all monsters on the level.
The save and restore code can now handle the fuse. The function used is
a new wrapper, turn_see_off(), which should lead to less problems with
daemons being multiple incompatible types.
Also, Rogue V4 and Super-Rogue now properly clear unrecognized daemon
and fuse slots when restoring a saved game.
author | John "Elwin" Edwards |
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date | Sat, 05 Mar 2016 12:10:20 -0500 |
parents | 56e748983fa8 |
children | ad2570b5b21f |
rev | line source |
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1 /* |
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2 * Anything to do with trading posts |
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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 "Super-Rogue" |
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9 * Copyright (C) 1984 Robert D. Kindelberger |
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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 <ctype.h> |
67 | 18 #include <string.h> |
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19 |
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20 bool open_market(void); |
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21 void trans_line(void); |
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22 char *typ_name(struct object *obj); |
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23 |
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24 |
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25 /* |
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26 * buy_it: |
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27 * Buy the item on which the hero stands |
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28 */ |
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29 void |
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30 buy_it(void) |
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31 { |
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32 reg int wh; |
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33 struct linked_list *item; |
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34 |
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35 if (purse <= 0) { |
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36 msg("You have no money."); |
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37 return; |
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38 } |
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39 if (curprice < 0) { /* if not yet priced */ |
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40 wh = price_it(); |
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41 if (!wh) /* nothing to price */ |
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42 return; |
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43 msg("Do you want to buy it? "); |
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44 do { |
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45 wh = tolower(readchar()); |
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46 if (wh == ESCAPE || wh == 'n') { |
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47 msg(""); |
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48 return; |
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49 } |
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50 } until(wh == 'y'); |
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51 } |
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52 mpos = 0; |
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53 if (curprice > purse) { |
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54 msg("You can't afford to buy that %s !",curpurch); |
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55 return; |
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56 } |
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57 /* |
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58 * See if the hero has done all his transacting |
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59 */ |
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60 if (!open_market()) |
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61 return; |
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62 /* |
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63 * The hero bought the item here |
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64 */ |
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65 item = find_obj(hero.y, hero.x); |
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66 mpos = 0; |
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67 if (add_pack(NULL,TRUE,&item)) { /* try to put it in his pack */ |
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68 purse -= curprice; /* take his money */ |
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69 ++trader; /* another transaction */ |
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70 trans_line(); /* show remaining deals */ |
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71 curprice = -1; /* reset stuff */ |
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72 curpurch[0] = 0; |
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73 whatis (item); /* identify it after purchase */ |
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74 (OBJPTR(item))->o_flags &= ~ISPOST; /* turn off ISPOST */ |
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75 msg("%s", inv_name(OBJPTR(item), TRUE)); |
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76 } |
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77 } |
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78 |
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79 /* |
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80 * do_post: |
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81 * Put a trading post room and stuff on the screen |
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82 */ |
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83 void |
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84 do_post(void) |
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85 { |
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86 coord tp; |
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87 reg int i; |
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88 reg struct room *rp; |
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89 reg struct object *op; |
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90 reg struct linked_list *ll; |
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91 |
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92 o_free_list(lvl_obj); /* throw old items away */ |
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93 |
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94 for (rp = rooms; rp < &rooms[MAXROOMS]; rp++) |
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95 rp->r_flags = ISGONE; /* kill all rooms */ |
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96 |
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97 rp = &rooms[0]; /* point to only room */ |
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98 rp->r_flags = 0; /* this room NOT gone */ |
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99 rp->r_max.x = 40; |
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100 rp->r_max.y = 10; /* 10 * 40 room */ |
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101 rp->r_pos.x = (COLS - rp->r_max.x) / 2; /* center horizontal */ |