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annotate srogue/encumb.c @ 82:f11eeafc6568

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srogue: don't store machine-dependent metadata in the savefile. Super-Rogue, like Rogue V4, stored data of machine-dependent length in the savefile, to prevent cheating. This made saved games non-portable. Also deleted was a check that used this data, and prevented restoring savefiles from backup. This change BREAKS SAVEFILE COMPATIBILITY, but old files can be converted by removing the block at offset 0x1e with length sizeof(ino_t) + sizeof(dev_t) + 2 * sizeof(time_t). That seems to be 0x14 on i686 and 0x20 on x86_64.
author John "Elwin" Edwards
date Tue, 06 Aug 2013 19:02:58 -0700
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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106 volume = 0;