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annotate arogue5/sticks.c @ 227:696277507a2e

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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
date Sat, 05 Mar 2016 12:10:20 -0500
parents 56e748983fa8
children e52a8a7ad4c5
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1 /*
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2 * Functions to implement the various sticks one might find
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3 * while wandering around the dungeon.
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4 *
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5 * Advanced Rogue
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6 * Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
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7 * All rights reserved.
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8 *
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9 * Based on "Rogue: Exploring the Dungeons of Doom"
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10 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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11 * All rights reserved.
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12 *
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13 * See the file LICENSE.TXT for full copyright and licensing information.
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14 */
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15
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16 #include "curses.h"
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17 #include <ctype.h>
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c49f7927b0fa arogue5: add missing header files.
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18 #include <string.h>
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19 #include "rogue.h"
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20
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21 void drain(int ymin, int ymax, int xmin, int xmax);
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22
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23 /*
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24 * zap a stick and see what happens
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25 */
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26 bool
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27 do_zap(bool gotdir, int which, int flag)
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28 {
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29 register struct linked_list *item;
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30 register struct object *obj = NULL;
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31 register struct thing *tp;
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32 register int y, x;
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33 struct linked_list *nitem;
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34 struct object *nobj;
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35 bool cursed, blessed, is_stick;
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36
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37 blessed = FALSE;
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38 cursed = FALSE;
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39 is_stick = FALSE;
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40
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41 if (which == 0) {
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42 if ((item = get_item(pack, "zap with", ZAPPABLE)) == NULL)
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43 return(FALSE);
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44 obj = OBJPTR(item);
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45
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46 /* Handle relics specially here */
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47 if (obj->o_type == RELIC) {
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48 switch (obj->o_which) {
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49 case ORCUS_WAND:
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50 msg(nothing);
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51 return(TRUE);
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52 when MING_STAFF:
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53 which = WS_MISSILE;
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54 when ASMO_ROD:
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55 switch (rnd(3)) {
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56 case 0:
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57 which = WS_ELECT;
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58 when 1:
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59 which = WS_COLD;
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60 otherwise:
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61 which = WS_FIRE;
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62 }
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63 }
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64 cursed = FALSE;
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65 blessed = FALSE;
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66 }
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67 else {
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68 which = obj->o_which;
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69 ws_know[which] = TRUE;
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70 cursed = (obj->o_flags & ISCURSED) != 0;
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71 blessed = (obj->o_flags & ISBLESSED) != 0;
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72 is_stick = TRUE;
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73 }
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74 }
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75 else {
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76 cursed = flag & ISCURSED;
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77 blessed = flag & ISBLESSED;
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78 }
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79 switch (which) { /* no direction for these */
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80 case WS_LIGHT:
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81 case WS_DRAIN:
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82 case WS_CHARGE:
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83 case WS_CURING:
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84 break;
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85
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86 default:
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87 if (!get_dir())
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88 return(FALSE);
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89 if (!gotdir) {
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90 do {
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91 delta.y = rnd(3) - 1;
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92 delta.x = rnd(3) - 1;
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93 } while (delta.y == 0 && delta.x == 0);
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94 }
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95 }
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96
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97 if (is_stick) {
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98 if (obj->o_charges < 1) {
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99 msg(nothing);
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100 return(TRUE);
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101 }
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102 obj->o_charges--;
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103 }