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annotate arogue5/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 0ed67132cf10
children 56e748983fa8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
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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 * Advanced Rogue
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5 * Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
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6 * All rights reserved.
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7 *
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8 * Based on "Super-Rogue"
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9 * Copyright (C) 1984 Robert D. Kindelberger
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10 * All rights reserved.
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11 *
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12 * See the file LICENSE.TXT for full copyright and licensing information.
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13 */
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14
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15 #include "curses.h"
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16 #include "rogue.h"
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17
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18 /*
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19 * updpack:
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20 * Update his pack weight and adjust fooduse accordingly
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21 */
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22 updpack(getmax)
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23 int getmax;
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24 {
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25
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26 reg int topcarry, curcarry;
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27
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28 if (getmax)
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29 pstats.s_carry = totalenc(); /* get total encumb */
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30 curcarry = packweight(); /* get pack weight */
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31 topcarry = pstats.s_carry / 5; /* 20% of total carry */
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32 if(curcarry > 4 * topcarry) {
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33 if(rnd(100) < 80)
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34 foodlev = 3; /* > 80% of pack */
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35 } else if(curcarry > 3 * topcarry) {
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36 if(rnd(100) < 60)
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37 foodlev = 2; /* > 60% of pack */
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38 } else
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39 foodlev = 1; /* <= 60% of pack */
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40 pstats.s_pack = curcarry; /* update pack weight */
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41 }
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42
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43
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44 /*
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45 * packweight:
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46 * Get the total weight of the hero's pack
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47 */
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48 packweight()
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49 {
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50 reg struct object *obj;
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51 reg struct linked_list *pc;
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52 reg int weight;
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53
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54 weight = 0;
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55 for(pc = pack ; pc != NULL ; pc = next(pc)) {
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56 obj = OBJPTR(pc);
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57 weight += itemweight(obj);
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58 }
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59 if(weight < 0) /* in case of amulet */
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60 weight = 0;
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61 if(ISWEARING(R_HEAVY))
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62 weight += weight / 4;
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63 return(weight);
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64 }
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65
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66
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67 /*
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68 * itemweight:
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69 * Get the weight of an object
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70 */
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71 itemweight(wh)
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72 reg struct object *wh;
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73 {
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74 reg int weight;
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75 reg int ac;
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76
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77 weight = wh->o_weight; /* get base weight */
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78 switch(wh->o_type) {
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79 case ARMOR:
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80 /*
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81 * subtract 10% for each enchantment
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82 * this will add weight for negative items
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83 */
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84 ac = armors[wh->o_which].a_class - wh->o_ac;
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85 weight = ((weight*10) - (weight*ac)) / 10;
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86 if (weight < 0) weight = 0;
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87 when WEAPON:
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88 if ((wh->o_hplus + wh->o_dplus) > 0)
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89 weight /= 2;
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90 }
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91 if(wh->o_flags & ISCURSED)
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92 weight += weight / 5; /* 20% more for cursed */
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93 weight *= wh->o_count;
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94 return(weight);
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95 }
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96
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97
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98 /*
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99 * playenc:
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100 * Get hero's carrying ability above norm
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101 */
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102 playenc()
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103 {
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104 return ((str_compute()-8)*50);
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105 }