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annotate xrogue/rings.c @ 306:057c5114e244

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Super-Rogue: fix some out-of-range constants. Constants K_ARROW etc., for causes of death other than monsters, are in the 240-255 range. They were often passed to functions taking char, which is usually signed, making the values out of range. The function declarations have been changed to unsigned char, which is also the type used by the scoreboard code.
author John "Elwin" Edwards
date Sat, 17 Apr 2021 15:41:12 -0400
parents 7c1cb43f346e
children
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1 /*
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2 rings.c - Routines dealing specificaly with rings
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3
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4 XRogue: Expeditions into the Dungeons of Doom
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5 Copyright (C) 1991 Robert Pietkivitch
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6 All rights reserved.
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7
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8 Based on "Advanced Rogue"
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9 Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
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10 All rights reserved.
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11
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12 Based on "Rogue: Exploring the Dungeons of Doom"
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13 Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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14 All rights reserved.
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15
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16 See the file LICENSE.TXT for full copyright and licensing information.
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17 */
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18
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19 #include <stdlib.h>
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20 #include <string.h>
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21 #include <curses.h>
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22 #include "rogue.h"
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23
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24 /*
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25 * routines dealing specifically with rings
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26 */
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27
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28 /*
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29 * how much food does this ring use up?
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30 */
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31
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32 int
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33 ring_eat(int hand)
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34 {
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35 if (cur_ring[hand] == NULL)
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36 return 0;
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37 switch (cur_ring[hand]->o_which) {
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38 case R_VAMPREGEN:
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39 return 3;
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40 case R_REGEN:
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41 case R_SUSABILITY:
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42 return 2;
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43 case R_HEALTH:
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44 return 1;
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45 case R_SEARCH:
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46 case R_SEEINVIS:
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47 return (rnd(100) < 50); /* 0 or 1 */
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48 case R_DIGEST:
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49 if (cur_ring[hand]->o_ac >= 0)
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50 return (-(cur_ring[hand]->o_ac)-1);
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51 else
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52 return (-(cur_ring[hand]->o_ac));
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53 }
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54 return 0;
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55 }
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56
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57 void
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58 ring_on(struct linked_list *item)
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59 {
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60 register struct object *obj;
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61 register int save_max;
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62
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63 obj = OBJPTR(item);
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64
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65 /*
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66 * Calculate the effect it has on the poor guy.
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67 */
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68 switch (obj->o_which)
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69 {
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70 case R_ADDSTR:
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71 save_max = max_stats.s_str;
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72 chg_str(obj->o_ac);
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73 max_stats.s_str = save_max;
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74 when R_ADDHIT:
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75 pstats.s_dext += obj->o_ac;
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76 when R_ADDINTEL:
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77 pstats.s_intel += obj->o_ac;
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78 when R_ADDWISDOM:
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79 pstats.s_wisdom += obj->o_ac;
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80 when R_SEEINVIS:
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81 if (on(player, CANSEE)) msg("Your eyes sparkle.");
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82 else msg("Your eyes begin to tingle.");
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83 turn_on(player, CANSEE);
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84 light(&hero);
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85 mvwaddch(cw, hero.y, hero.x, PLAYER);
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86 when R_AGGR:
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87 aggravate(TRUE, TRUE); /* all charactors are affected*/
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88 when R_WARMTH:
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89 if (on(player, NOCOLD)) msg("You feel warm all over.");
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90 else msg("You begin to feel warm.");
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91 turn_on(player, NOCOLD);
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92 when R_FIRE: