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annotate srogue/encumb.c @ 110:5f51f7d9805f

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arogue5: fix some save/restore-related crashes. The save/restore code took the pointer intended as an argument for the doctor() daemon and wrote it to the savefile as an int. I don't know why it took so long to fail horribly. The problem has been avoided by replacing the value with &player when restoring. That seems to be the only argument ever actually used. The code also writes only four bytes for an unsigned long; if sizeof(long) == 8, it casts to unsigned int first. It failed to do the cast when reading back, with the result that four bytes were read and the other half of the number was effectively uninitialized. It apparently works now, but the save/restore code ought still to be regarded as decidedly unfortunate.
author John "Elwin" Edwards
date Mon, 06 Jan 2014 15:57:17 -0500
parents 2128c7dc8a40
children 94a0d9dd5ce1
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36
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1 /*
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2 * Stuff to do with encumberence
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3 *
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4 * @(#)encumb.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 * See the file LICENSE.TXT for full copyright and licensing information.
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11 */
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12
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13 #include "rogue.h"
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14 #include "rogue.ext"
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15
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16 /*
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17 * updpack:
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18 * Update his pack weight and adjust fooduse accordingly
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19 */
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20 updpack()
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21 {
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22 reg int topcarry, curcarry;
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23
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24 him->s_carry = totalenc(); /* get total encumb */
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25 curcarry = packweight(); /* get pack weight */
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26 topcarry = him->s_carry / 5; /* 20% of total carry */
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27 if (curcarry > 4 * topcarry) {
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28 if (rnd(100) < 80)
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29 foodlev = 3; /* > 80% of pack */
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30 }
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31 else if (curcarry > 3 * topcarry) {
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32 if (rnd(100) < 60)
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33 foodlev = 2; /* > 60% of pack */
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34 }
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35 else
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36 foodlev = 1; /* <= 60% of pack */
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37 him->s_pack = curcarry; /* update pack weight */
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38 packvol = pack_vol(); /* update pack volume */
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39 nochange = FALSE; /* also change display */
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40 }
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41
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42
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43 /*
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44 * packweight:
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45 * Get the total weight of the hero's pack
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46 */
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47 packweight()
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48 {
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49 reg struct object *obj;
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50 reg struct linked_list *pc;
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51 reg int weight, i;
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52
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53 weight = 0;
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54 for (pc = pack ; pc != NULL ; pc = next(pc)) {
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55 obj = OBJPTR(pc);
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56 weight += itemweight(obj) * obj->o_count;
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57 }
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58 if (weight < 0) /* in case of amulet */
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59 weight = 0;
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60 for (i = LEFT; i <= RIGHT; i += 1) {
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61 obj = cur_ring[i];
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62 if (obj != NULL) {
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63 if (obj->o_type == R_HEAVY && o_off(obj, ISBLESS))
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64 weight += weight / 4;
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65 }
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66 }
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67 return weight;
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68 }
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69
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70
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71 /*
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72 * itemweight:
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73 * Get the weight of an object
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74 */
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75 itemweight(wh)
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76 struct object *wh;
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77 {
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78 reg int weight;
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79
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80 weight = wh->o_weight; /* get base weight */
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81 switch (wh->o_type) {
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82 case ARMOR:
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83 if ((armors[wh->o_which].a_class - wh->o_ac) > 0)
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84 weight /= 2;
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85 when WEAPON:
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86 if ((wh->o_hplus + wh->o_dplus) > 0)
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87 weight /= 2;
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88 }
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89 if (o_on(wh,ISCURSED))
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90 weight += weight / 5; /* 20% more for cursed */
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91 if (o_on(wh, ISBLESS))
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92 weight -= weight / 5; /* 20% less for blessed */
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93 return weight;
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94 }
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95
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96 /*
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97 * pack_vol:
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98 * Get the total volume of the hero's pack
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99 */
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100 pack_vol()
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101 {
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102 reg struct object *obj;
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103 reg struct linked_list *pc;
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104 reg int volume;
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105
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