328 lines
9.1 KiB
C
328 lines
9.1 KiB
C
/* $Id$ */
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/** @file
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* Implementation of Action 04 "universal holder" structure and functions.
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* This file implements a linked-lists of strings,
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* holding everything that the newgrf action 04 will send over to OpenTTD.
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* One of the biggest problems is that Dynamic lang Array uses ISO codes
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* as way to identifying current user lang, while newgrf uses bit shift codes
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* not related to ISO. So equivalence functionnality had to be set.
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*/
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#include "stdafx.h"
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#include "debug.h"
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#include "openttd.h"
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#include "string.h"
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#include "strings.h"
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#include "variables.h"
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#include "macros.h"
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#include "table/strings.h"
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#include "newgrf_text.h"
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#define GRFTAB 28
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#define TABSIZE 11
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/**
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* Explains the newgrf shift bit positionning.
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* the grf base will not be used in order to find the string, but rather for
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* jumping from standard langID scheme to the new one.
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*/
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typedef enum grf_base_languages {
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GRFLB_AMERICAN = 0x01,
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GRFLB_ENGLISH = 0x02,
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GRFLB_GERMAN = 0x04,
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GRFLB_FRENCH = 0x08,
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GRFLB_SPANISH = 0x10,
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GRFLB_GENERIC = 0x80,
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} grf_base_language;
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typedef enum grf_extended_languages {
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GRFLX_AMERICAN = 0x00,
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GRFLX_ENGLISH = 0x01,
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GRFLX_GERMAN = 0x02,
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GRFLX_FRENCH = 0x03,
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GRFLX_SPANISH = 0x04,
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GRFLX_RUSSIAN = 0x07,
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GRFLX_CZECH = 0x15,
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GRFLX_SLOVAK = 0x16,
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GRFLX_AFRIKAANS = 0x1B,
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GRFLX_GREEK = 0x1E,
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GRFLX_DUTCH = 0x1F,
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GRFLX_CATALAN = 0x22,
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GRFLX_HUNGARIAN = 0x24,
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GRFLX_ITALIAN = 0x27,
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GRFLX_ROMANIAN = 0x28,
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GRFLX_ICELANDIC = 0x29,
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GRFLX_LATVIAN = 0x2A,
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GRFLX_LITHUANIAN = 0x2B,
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GRFLX_SLOVENIAN = 0x2C,
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GRFLX_DANISH = 0x2D,
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GRFLX_SWEDISH = 0x2E,
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GRFLX_NORWEGIAN = 0x2F,
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GRFLX_POLISH = 0x30,
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GRFLX_GALICIAN = 0x31,
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GRFLX_FRISIAN = 0x32,
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GRFLX_UKRAINIAN = 0x33,
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GRFLX_ESTONIAN = 0x34,
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GRFLX_FINNISH = 0x35,
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GRFLX_PORTUGUESE = 0x36,
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GRFLX_BRAZILIAN = 0x37,
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GRFLX_CROATIAN = 0x38,
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GRFLX_TURKISH = 0x3E,
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GRFLX_UNSPECIFIED = 0x7F,
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} grf_language;
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typedef struct iso_grf {
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char code[6];
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byte grfLangID;
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} iso_grf;
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/**
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* ISO code VS NewGrf langID conversion array.
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* This array is used in two ways:
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* 1-its ISO part is matching OpenTTD dynamic language id
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* with newgrf bit positionning language id
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* 2-its shift part is used to know what is the shift to
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* watch for when inserting new strings, hence analysing newgrf langid
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*/
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const iso_grf iso_codes[] = {
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{"en_US", GRFLX_AMERICAN},
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{"en_GB", GRFLX_ENGLISH},
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{"de_DE", GRFLX_GERMAN},
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{"fr_FR", GRFLX_FRENCH},
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{"es_ES", GRFLX_SPANISH},
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{"af_ZA", GRFLX_AFRIKAANS},
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{"hr_HR", GRFLX_CROATIAN},
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{"cs_CS", GRFLX_CZECH},
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{"ca_ES", GRFLX_CATALAN},
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{"da_DA", GRFLX_DANISH},
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{"nl_NL", GRFLX_DUTCH},
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{"et_ET", GRFLX_ESTONIAN},
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{"fi_FI", GRFLX_FINNISH},
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{"fy_NL", GRFLX_FRISIAN},
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{"gl_ES", GRFLX_GALICIAN},
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{"el_GR", GRFLX_GREEK},
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{"hu_HU", GRFLX_HUNGARIAN},
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{"is_IS", GRFLX_ICELANDIC},
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{"it_IT", GRFLX_ITALIAN},
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{"lv_LV", GRFLX_LATVIAN},
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{"lt_LT", GRFLX_LITHUANIAN},
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{"nb_NO", GRFLX_NORWEGIAN},
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{"pl_PL", GRFLX_POLISH},
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{"pt_PT", GRFLX_PORTUGUESE},
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{"pt_BR", GRFLX_BRAZILIAN},
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{"ro_RO", GRFLX_ROMANIAN},
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{"ru_RU", GRFLX_RUSSIAN},
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{"sk_SK", GRFLX_SLOVAK},
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{"sl_SL", GRFLX_SLOVENIAN},
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{"sv_SE", GRFLX_SWEDISH},
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{"tr_TR", GRFLX_TURKISH},
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{"uk_UA", GRFLX_UKRAINIAN},
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{"gen", GRFLB_GENERIC} //this is not iso code, but there has to be something...
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};
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static uint _num_grf_texts = 0;
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static GRFTextEntry _grf_text[(1 << TABSIZE) * 3];
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static byte _currentLangID = GRFLX_ENGLISH; //by default, english is used.
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static void TranslateTTDPatchCodes(char *str)
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{
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char *c;
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for (c = str; *c != '\0'; c++) {
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switch ((byte)*c) {
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case 0x01: c++; break;
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case 0x0D: *c = 10; break;
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case 0x0E: *c = 8; break;
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case 0x0F: *c = 9; break;
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case 0x1F: *c = 2; c += 2; break;
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case 0x7B:
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case 0x7C:
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case 0x7D:
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case 0x7E: *c = 0x8E; break;
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case 0x81: c += 2; break;
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case 0x85: *c = 0x86; break;
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case 0x88: *c = 15; break;
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case 0x89: *c = 16; break;
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case 0x8A: *c = 17; break;
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case 0x8B: *c = 18; break;
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case 0x8C: *c = 19; break;
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case 0x8D: *c = 20; break;
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case 0x8E: *c = 21; break;
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case 0x8F: *c = 22; break;
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case 0x90: *c = 23; break;
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case 0x91: *c = 24; break;
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case 0x92: *c = 25; break;
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case 0x93: *c = 26; break;
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case 0x94: *c = 27; break;
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case 0x95: *c = 28; break;
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case 0x96: *c = 29; break;
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case 0x97: *c = 30; break;
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case 0x98: *c = 31; break;
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default:
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/* Validate any unhandled character */
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if (!IsValidAsciiChar(*c)) *c = '?';
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break;
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}
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}
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}
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/**
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* Add the new read string into our structure.
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*/
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StringID AddGRFString(uint32 grfid, uint16 stringid, byte langid_to_add, bool new_scheme, const char *text_to_add, StringID def_string)
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{
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GRFText *newtext;
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uint id;
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/* When working with the old language scheme (grf_version is less than 7) and
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* English or American is among the set bits, simply add it as English in
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* the new scheme, i.e. as langid = 1.
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* If English is set, it is pretty safe to assume the translations are not
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* actually translated.
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*/
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if (!new_scheme) {
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if (HASBITS(langid_to_add, GRFLB_AMERICAN | GRFLB_ENGLISH)) {
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langid_to_add = GRFLX_ENGLISH;
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} else {
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StringID ret = STR_EMPTY;
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if (langid_to_add & GRFLB_GERMAN) ret = AddGRFString(grfid, stringid, 1 << 6 | GRFLX_GERMAN, true, text_to_add, def_string);
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if (langid_to_add & GRFLB_FRENCH) ret = AddGRFString(grfid, stringid, 1 << 6 | GRFLX_FRENCH, true, text_to_add, def_string);
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if (langid_to_add & GRFLB_SPANISH) ret = AddGRFString(grfid, stringid, 1 << 6 | GRFLX_SPANISH, true, text_to_add, def_string);
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return ret;
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}
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}
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for (id = 0; id < _num_grf_texts; id++) {
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if (_grf_text[id].grfid == grfid && _grf_text[id].stringid == stringid) {
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break;
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}
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}
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/* Too many strings allocated, return empty */
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if (id == lengthof(_grf_text)) return STR_EMPTY;
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newtext = calloc(1, sizeof(*newtext));
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newtext->langid = GB(langid_to_add, 0, 6);
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newtext->text = strdup(text_to_add);
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newtext->next = NULL;
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TranslateTTDPatchCodes(newtext->text);
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/* If we didn't find our stringid and grfid in the list, allocate a new id */
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if (id == _num_grf_texts) _num_grf_texts++;
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if (_grf_text[id].textholder == NULL) {
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_grf_text[id].grfid = grfid;
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_grf_text[id].stringid = stringid;
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_grf_text[id].def_string = def_string;
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_grf_text[id].textholder = newtext;
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} else {
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GRFText *textptr = _grf_text[id].textholder;
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while (textptr->next != NULL) textptr = textptr->next;
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textptr->next = newtext;
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}
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DEBUG(grf, 2)("Added 0x%X: grfid 0x%X string 0x%X lang 0x%X string %s", id, grfid, stringid, newtext->langid, newtext->text);
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return (GRFTAB << TABSIZE) + id;
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}
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/**
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* Returns the index for this stringid associated with its grfID
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*/
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StringID GetGRFStringID(uint32 grfid, uint16 stringid)
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{
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uint id;
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for (id = 0; id < _num_grf_texts; id++) {
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if (_grf_text[id].grfid == grfid && _grf_text[id].stringid == stringid) {
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return (GRFTAB << TABSIZE) + id;
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}
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}
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return STR_UNDEFINED;
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}
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char *GetGRFString(char *buff, uint16 stringid)
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{
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GRFText *search_text;
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GRFText *default_text = NULL;
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assert(_grf_text[stringid].grfid != 0);
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/*Search the list of lang-strings of this stringid for current lang */
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for (search_text = _grf_text[stringid].textholder; search_text != NULL; search_text = search_text->next) {
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if (search_text->langid == _currentLangID) {
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return strecpy(buff, search_text->text, NULL);
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}
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/* If the current string is English or American, set it as the
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* fallback language if the specific language isn't available. */
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if (search_text->langid == GRFLX_ENGLISH || search_text->langid == GRFLX_AMERICAN) {
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default_text = search_text;
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}
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}
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/* If there is a fallback string, return that */
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if (default_text != NULL) return strecpy(buff, default_text->text, NULL);
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/* Use the default string ID if the fallback string isn't available */
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return GetString(buff, _grf_text[stringid].def_string);
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}
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/**
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* Equivalence Setter function between game and newgrf langID.
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* This function will adjust _currentLangID as to what is the LangID
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* of the current language set by the user.
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* The array iso_codes will be used to find that match.
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* If not found, it will have to be standard english
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* This function is called after the user changed language,
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* from strings.c:ReadLanguagePack
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* @param iso code of current selection
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*/
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void SetCurrentGrfLangID(const char *iso_name)
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{
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byte ret,i;
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/* Use English by default, if we can't match up the iso_code. */
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ret = GRFLX_ENGLISH;
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for (i=0; i < lengthof(iso_codes); i++) {
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if (strncmp(iso_codes[i].code, iso_name, strlen(iso_codes[i].code)) == 0) {
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/* We found a match, so let's use it. */
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ret = i;
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break;
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}
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}
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_currentLangID = ret;
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}
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/**
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* House cleaning.
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* Remove all strings and reset the text counter.
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*/
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void CleanUpStrings(void)
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{
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uint id;
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for (id = 0; id < _num_grf_texts; id++) {
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GRFText *grftext = _grf_text[id].textholder;
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while (grftext != NULL) {
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GRFText *grftext2 = grftext->next;
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free(grftext->text);
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free(grftext);
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grftext = grftext2;
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}
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_grf_text[id].grfid = 0;
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_grf_text[id].stringid = 0;
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_grf_text[id].textholder = NULL;
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}
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_num_grf_texts = 0;
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}
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