Mercurial > hg > early-roguelike
annotate urogue/encumb.c @ 256:c495a4f288c6
Import UltraRogue from the Roguelike Restoration Project (r1490)
author | John "Elwin" Edwards |
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date | Tue, 31 Jan 2017 19:56:04 -0500 |
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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 |
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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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94 */ |
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95 |
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96 int |
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97 itemweight(struct object *wh) |
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98 { |
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99 int weight = wh->o_weight; /* get base weight */ |
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100 int ac; |
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101 |
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102 switch (wh->o_type) |
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103 { |
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104 case ARMOR: /* 10% for each plus or minus*/ |
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105 ac = armors[wh->o_which].a_class - wh->o_ac; |
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106 weight *= (10 - ac) / 10; |
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107 break; |
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108 |
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109 case WEAPON: |
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110 if ((wh->o_hplus + wh->o_dplus) > 0) |
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111 weight /= 2; |
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112 } |
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113 |
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114 if (wh->o_flags & ISCURSED) |
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115 weight += weight / 2; /* +50% for cursed */ |
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116 else if (wh->o_flags & ISBLESSED) |
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117 weight -= weight / 5; /* -20% for blessed */ |
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118 |
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119 if (weight < 0) |
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120 weight = 0; |
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121 |
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122 return (weight); |
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123 } |
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124 |
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125 |
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126 /* |
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127 playenc() |
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128 Get hero's carrying ability above norm 50 units per point of STR |
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129 over 10, 300 units per plus on R_CARRYING 1000 units for TR_PURSE |
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130 */ |
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131 |
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132 int |
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133 playenc(void) |
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134 { |
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135 int ret_val = (pstats.s_str - 10) * 50; |
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136 |
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137 if (is_wearing(R_CARRYING)) |
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138 ret_val += ring_value(R_CARRYING) * 300; |
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139 |
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140 return (ret_val); |
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141 } |
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142 |
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143 |
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144 /* |
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145 totalenc() |
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146 Get total weight that the hero can carry |
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147 */ |
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148 |
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149 int |
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150 totalenc(void) |
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151 { |
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152 int wtotal = 1400 + playenc(); |
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153 |
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154 switch (hungry_state) |
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155 { |
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156 case F_OK: |
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157 case F_HUNGRY: /* no change */ |
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158 break; |
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159 |
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160 case F_WEAK: |
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161 wtotal -= wtotal / 4; /* 25% off weak */ |
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162 break; |
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163 |
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164 case F_FAINT: |
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165 wtotal /= 2; /* 50% off faint */ |
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166 break; |
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167 } |
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168 |
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169 return (wtotal); |
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170 } |
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171 |
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172 |
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173 /* |
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174 hitweight() |
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175 Gets the fighting ability according to current weight This |
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176 returns a +2 hit for very light pack weight, +1 hit |
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177 for light pack weight, 0 hit for medium pack weight, -1 hit for heavy |
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178 pack weight, -2 hit for very heavy pack weight |
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179 */ |
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180 |
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181 int |
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182 hitweight(void) |
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183 { |
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184 return(3 - foodlev); |
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185 } |