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annotate arogue5/encumb.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 56e748983fa8
children
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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 int packweight(void);
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19
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20 /*
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21 * updpack:
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22 * Update his pack weight and adjust fooduse accordingly
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23 */
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24 void
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25 updpack(bool getmax)
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26 {
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27
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28 reg int topcarry, curcarry;
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29
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30 if (getmax)
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31 pstats.s_carry = totalenc(); /* get total encumb */
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32 curcarry = packweight(); /* get pack weight */
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33 topcarry = pstats.s_carry / 5; /* 20% of total carry */
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34 if(curcarry > 4 * topcarry) {
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35 if(rnd(100) < 80)
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36 foodlev = 3; /* > 80% of pack */
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37 } else if(curcarry > 3 * topcarry) {
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38 if(rnd(100) < 60)
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39 foodlev = 2; /* > 60% of pack */
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40 } else
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41 foodlev = 1; /* <= 60% of pack */
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42 pstats.s_pack = curcarry; /* update pack weight */
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43 }
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44
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45
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46 /*
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47 * packweight:
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48 * Get the total weight of the hero's pack
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49 */
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50 int
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51 packweight(void)
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52 {
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53 reg struct object *obj;
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54 reg struct linked_list *pc;
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55 reg int weight;
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56
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57 weight = 0;
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58 for(pc = pack ; pc != NULL ; pc = next(pc)) {
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59 obj = OBJPTR(pc);
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60 weight += itemweight(obj);
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61 }
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62 if(weight < 0) /* in case of amulet */
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63 weight = 0;
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64 if(ISWEARING(R_HEAVY))
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65 weight += weight / 4;
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66 return(weight);
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67 }
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68
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69
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70 /*
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71 * itemweight:
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72 * Get the weight of an object
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73 */
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74 int
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75 itemweight(struct object *wh)
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76 {
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77 reg int weight;
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78 reg int ac;
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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 /*
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84 * subtract 10% for each enchantment
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85 * this will add weight for negative items
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86 */
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87 ac = armors[wh->o_which].a_class - wh->o_ac;
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88 weight = ((weight*10) - (weight*ac)) / 10;
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89 if (weight < 0) weight = 0;
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90 when WEAPON:
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91 if ((wh->o_hplus + wh->o_dplus) > 0)
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92 weight /= 2;
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93 }
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94 if(wh->o_flags & ISCURSED)
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95 weight += weight / 5; /* 20% more for cursed */
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96 weight *= wh->o_count;
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97 return(weight);
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98 }
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99
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100
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101 /*
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102 * playenc:
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