Mercurial > hg > openttd
annotate src/newgrf_townname.cpp @ 9038:6e86ab2cba9f draft
(svn r12857) -Fix [FS#1948]: remove the last uses of AutoPtr in the station code.
author | rubidium <rubidium@openttd.org> |
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date | Wed, 23 Apr 2008 22:16:41 +0000 |
parents | 2495310e220f |
children | a4e5b5d2837c |
rev | line source |
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1 /* $Id$ */ |
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2 |
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3 /** @file newgrf_townname.cpp |
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4 * Implementation of Action 0F "universal holder" structure and functions. |
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5 * This file implements a linked-lists of townname generators, |
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6 * holding everything that the newgrf action 0F will send over to OpenTTD. |
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7 */ |
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8 |
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9 #include "stdafx.h" |
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10 #include "openttd.h" |
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11 #include "newgrf_townname.h" |
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12 #include "core/alloc_func.hpp" |
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13 #include "string_func.h" |
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14 |
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15 #include "table/strings.h" |
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16 |
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17 static GRFTownName *_grf_townnames = NULL; |
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18 |
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19 GRFTownName *GetGRFTownName(uint32 grfid) |
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20 { |
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21 GRFTownName *t = _grf_townnames; |
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22 for (; t != NULL; t = t->next) { |
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23 if (t->grfid == grfid) return t; |
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24 } |
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25 return NULL; |
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26 } |
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27 |
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28 GRFTownName *AddGRFTownName(uint32 grfid) |
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29 { |
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30 GRFTownName *t = GetGRFTownName(grfid); |
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31 if (t == NULL) { |
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32 t = CallocT<GRFTownName>(1); |
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33 t->grfid = grfid; |
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34 t->next = _grf_townnames; |
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35 _grf_townnames = t; |
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36 } |
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37 return t; |
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38 } |
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39 |
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40 void DelGRFTownName(uint32 grfid) |
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41 { |
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42 GRFTownName *t = _grf_townnames; |
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43 GRFTownName *p = NULL; |
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44 for (;t != NULL; p = t, t = t->next) if (t->grfid == grfid) break; |
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45 if (t != NULL) { |
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46 for (int i = 0; i < 128; i++) { |
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47 for (int j = 0; j < t->nbparts[i]; j++) { |
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48 for (int k = 0; k < t->partlist[i][j].partcount; k++) { |
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49 if (!HasBit(t->partlist[i][j].parts[k].prob, 7)) free(t->partlist[i][j].parts[k].data.text); |
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50 } |
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51 free(t->partlist[i][j].parts); |
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52 } |
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53 free(t->partlist[i]); |
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54 } |
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55 if (p != NULL) { |
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56 p->next = t->next; |
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57 } else { |
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58 _grf_townnames = t->next; |
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59 } |
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60 free(t); |
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61 } |
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62 } |
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63 |
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64 static char *RandomPart(char *buf, GRFTownName *t, uint32 seed, byte id, const char *last) |
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65 { |
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66 assert(t != NULL); |
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67 for (int i = 0; i < t->nbparts[id]; i++) { |
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68 byte count = t->partlist[id][i].bitcount; |
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69 uint16 maxprob = t->partlist[id][i].maxprob; |
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70 uint32 r = (GB(seed, t->partlist[id][i].bitstart, count) * maxprob) >> count; |
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71 for (int j = 0; j < t->partlist[id][i].partcount; j++) { |
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72 byte prob = t->partlist[id][i].parts[j].prob; |
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73 maxprob -= GB(prob, 0, 7); |
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74 if (maxprob > r) continue; |
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75 if (HasBit(prob, 7)) { |
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76 buf = RandomPart(buf, t, seed, t->partlist[id][i].parts[j].data.id, last); |
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77 } else { |
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78 buf = strecat(buf, t->partlist[id][i].parts[j].data.text, last); |
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79 } |
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80 break; |
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81 } |
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82 } |
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83 return buf; |
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84 } |
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85 |
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86 char *GRFTownNameGenerate(char *buf, uint32 grfid, uint16 gen, uint32 seed, const char *last) |
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87 { |
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88 strecpy(buf, "", last); |
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89 for (GRFTownName *t = _grf_townnames; t != NULL; t = t->next) { |
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90 if (t->grfid == grfid) { |
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91 assert(gen < t->nb_gen); |
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92 buf = RandomPart(buf, t, seed, t->id[gen], last); |
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93 break; |
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94 } |
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95 } |
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96 return buf; |
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97 } |
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98 |
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99 StringID *GetGRFTownNameList() |
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100 { |
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101 int nb_names = 0, n = 0; |
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102 for (GRFTownName *t = _grf_townnames; t != NULL; t = t->next) nb_names += t->nb_gen; |
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103 StringID *list = MallocT<StringID>(nb_names + 1); |
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104 for (GRFTownName *t = _grf_townnames; t != NULL; t = t->next) { |
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105 for (int j = 0; j < t->nb_gen; j++) list[n++] = t->name[j]; |
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106 } |
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107 list[n] = INVALID_STRING_ID; |
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108 return list; |
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109 } |
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110 |
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111 void CleanUpGRFTownNames() |
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112 { |
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113 while (_grf_townnames != NULL) DelGRFTownName(_grf_townnames->grfid); |
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114 } |
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115 |
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116 uint32 GetGRFTownNameId(int gen) |
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117 { |
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118 for (GRFTownName *t = _grf_townnames; t != NULL; t = t->next) { |
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119 if (gen < t->nb_gen) return t->grfid; |
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120 gen -= t->nb_gen; |
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121 } |
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122 /* Fallback to no NewGRF */ |
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123 return 0; |
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124 } |
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125 |
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126 uint16 GetGRFTownNameType(int gen) |
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127 { |
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128 for (GRFTownName *t = _grf_townnames; t != NULL; t = t->next) { |
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129 if (gen < t->nb_gen) return gen; |
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130 gen -= t->nb_gen; |
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131 } |
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132 /* Fallback to english original */ |
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133 return SPECSTR_TOWNNAME_ENGLISH; |
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134 } |