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annotate urogue/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 c495a4f288c6
children
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1 /*
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2 encumb.c - Stuff to do with encumberance
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3
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4 UltraRogue: The Ultimate Adventure in the Dungeons of Doom
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5 Copyright (C) 1985, 1986, 1992, 1993, 1995 Herb Chong
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6 All rights reserved.
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7
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
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8 Based on "Advanced Rogue"
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9 Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka
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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 "rogue.h"
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16
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17 /*
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18 updpack()
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19 Update his pack weight and adjust fooduse accordingly
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20 */
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21
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22 void
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23 updpack(void)
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24 {
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25 int curcarry = packweight();
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26
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27 pstats.s_carry = totalenc(); /* update max encumb */
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28
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29 if (is_carrying(TR_PURSE))
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30 pstats.s_carry += 1000;
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31
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32 foodlev = 0;
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33
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34 switch ((curcarry * 5) / pstats.s_carry) /* % of total capacity */
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35 {
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36 case 5: /* 100 % */
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37 foodlev++;
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38
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39 case 4: /* 80 % */
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40 if (rnd(100) < 80)
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41 foodlev++;
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42
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43 case 3: /* 60 % */
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44 if (rnd(100) < 60)
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45 foodlev++;
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46
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47 case 2: /* 40 % */
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48 if (rnd(100) < 40)
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49 foodlev++;
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50
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51 case 1: /* 20 % */
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52 if (rnd(100) < 20)
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53 foodlev++;
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54
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55 case 0: /* 0 % */
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56 foodlev++;
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57 }
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58
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59 pstats.s_pack = curcarry; /* update pack weight */
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60
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61 if (is_carrying(TR_PURSE)) /* makes pack lighter */
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62 foodlev--;
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63 }
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64
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65
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66 /*
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67 packweight()
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68 Get the total weight of the hero's pack
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69 */
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70
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71 int
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72 packweight(void)
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73 {
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74 struct linked_list *pc;
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75 int weight = 0;
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76
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77 for (pc = pack; pc != NULL; pc = next(pc))
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78 {
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79 struct object *obj = OBJPTR(pc);
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80
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81 weight += itemweight(obj) * obj->o_count;
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82 }
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83
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84 if (weight < 0) /* caused by artifacts or blessed items */
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85 weight = 0;
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86
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87 return (weight);
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88 }
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89
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90
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91 /*
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92 itemweight()
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93 Get the weight of an object
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