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annotate src/newgrf_townname.cpp @ 8214:6385dffc0b37 draft

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(svn r11777) -Codechange: split the string header and make do not include it when it's not necessary.
author rubidium <rubidium@openttd.org>
date Mon, 07 Jan 2008 14:23:25 +0000
parents 0586823afe39
children 2495310e220f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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 "table/strings.h"
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12 #include "newgrf_townname.h"
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13 #include "core/alloc_func.hpp"
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14 #include "string_func.h"
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15
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16 static GRFTownName *_grf_townnames = NULL;
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17
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18 GRFTownName *GetGRFTownName(uint32 grfid)
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19 {
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20 GRFTownName *t = _grf_townnames;
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21 for (; t != NULL; t = t->next) {
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22 if (t->grfid == grfid) return t;
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23 }
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24 return NULL;
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25 }
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26
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27 GRFTownName *AddGRFTownName(uint32 grfid)
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28 {
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29 GRFTownName *t = GetGRFTownName(grfid);
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30 if (t == NULL) {
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31 t = CallocT<GRFTownName>(1);
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32 t->grfid = grfid;
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33 t->next = _grf_townnames;
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34 _grf_townnames = t;
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35 }
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36 return t;
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37 }
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38
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39 void DelGRFTownName(uint32 grfid)
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40 {
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41 GRFTownName *t = _grf_townnames;
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42 GRFTownName *p = NULL;
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43 for (;t != NULL; p = t, t = t->next) if (t->grfid == grfid) break;
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44 if (t != NULL) {
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45 for (int i = 0; i < 128; i++) {
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46 for (int j = 0; j < t->nbparts[i]; j++) {
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47 for (int k = 0; k < t->partlist[i][j].partcount; k++) {
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48 if (!HasBit(t->partlist[i][j].parts[k].prob, 7)) free(t->partlist[i][j].parts[k].data.text);
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49 }
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50 free(t->partlist[i][j].parts);
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51 }
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52 free(t->partlist[i]);
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53 }
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54 if (p != NULL) {
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55 p->next = t->next;
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56 } else {
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57 _grf_townnames = t->next;
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58 }
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59 free(t);
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60 }
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61 }
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62
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63 static char *RandomPart(char *buf, GRFTownName *t, uint32 seed, byte id, const char *last)
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64 {
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65 assert(t != NULL);
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66 for (int i = 0; i < t->nbparts[id]; i++) {
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67 byte count = t->partlist[id][i].bitcount;
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68 uint16 maxprob = t->partlist[id][i].maxprob;
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69 uint32 r = (GB(seed, t->partlist[id][i].bitstart, count) * maxprob) >> count;
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70 for (int j = 0; j < t->partlist[id][i].partcount; j++) {
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71 byte prob = t->partlist[id][i].parts[j].prob;
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72 maxprob -= GB(prob, 0, 7);
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73 if (maxprob > r) continue;
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74 if (HasBit(prob, 7)) {
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75 buf = RandomPart(buf, t, seed, t->partlist[id][i].parts[j].data.id, last);
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76 } else {
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77 buf = strecat(buf, t->partlist[id][i].parts[j].data.text, last);
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78 }
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79 break;
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80 }
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81 }
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82 return buf;
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83 }
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84
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85 char *GRFTownNameGenerate(char *buf, uint32 grfid, uint16 gen, uint32 seed, const char *last)
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86 {
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87 strecpy(buf, "", last);
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88 for (GRFTownName *t = _grf_townnames; t != NULL; t = t->next) {
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89 if (t->grfid == grfid) {
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90 assert(gen < t->nb_gen);
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91 buf = RandomPart(buf, t, seed, t->id[gen], last);
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92 break;
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93 }
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94 }
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95 return buf;
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96 }
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97
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98 StringID *GetGRFTownNameList()
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99 {
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100 int nb_names = 0, n = 0;
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101 for (GRFTownName *t = _grf_townnames; t != NULL; t = t->next) nb_names += t->nb_gen;
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102 StringID *list = MallocT<StringID>(nb_names + 1);
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103 for (GRFTownName *t = _grf_townnames; t != NULL; t = t->next) {
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104 for (int j = 0; j < t->nb_gen; j++) list[n++] = t->name[j];
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105 }
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106 list[n] = INVALID_STRING_ID;
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107 return list;
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108 }
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109
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110 void CleanUpGRFTownNames()
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111 {
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112 while (_grf_townnames != NULL) DelGRFTownName(_grf_townnames->grfid);
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113 }
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114
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115 uint32 GetGRFTownNameId(int gen)
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116 {
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117 for (GRFTownName *t = _grf_townnames; t != NULL; t = t->next) {
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118 if (gen < t->nb_gen) return t->grfid;
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119 gen -= t->nb_gen;
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120 }
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121 /* Fallback to no NewGRF */
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122 return 0;
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123 }
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124
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125 uint16 GetGRFTownNameType(int gen)
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126 {
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127 for (GRFTownName *t = _grf_townnames; t != NULL; t = t->next) {
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128 if (gen < t->nb_gen) return gen;
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129 gen -= t->nb_gen;
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130 }
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131 /* Fallback to english original */
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132 return SPECSTR_TOWNNAME_ENGLISH;
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133 }