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annotate srogue/encumb.c @ 81:0e212d46b68f

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rogue4: don't put savefile metadata into the savefile. The save_file() function in save.c stored the savefile's device number, inode number, creation time, and modification time in the file. The restore() function read them back, and apparently used to compare them to protect against cheaters. Unfortunately, the types and sizes of these numbers differ from system to system, which ruins the Roguelike Restoration Project's fine portability work. So they have been removed from the savefile. This BREAKS SAVEFILE COMPATIBILITY, but old files can be converted by excising the chunk starting at offset 0x22 with length sizeof(ino_t) + sizeof(dev_t) + 2 * sizeof(time_t). That's 0x14 on i686 and 0x20 on x86_64, at least with current versions of Linux and glibc.
author John "Elwin" Edwards
date Mon, 05 Aug 2013 20:49:41 -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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