1 /*
2  * This file is part of OpenTTD.
3  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
4  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
5  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
6  */
7 
8 /** @file strings_type.h Types related to strings. */
9 
10 #ifndef STRINGS_TYPE_H
11 #define STRINGS_TYPE_H
12 
13 /**
14  * Numeric value that represents a string, independent of the selected language.
15  */
16 typedef uint32 StringID;
17 static const StringID INVALID_STRING_ID = 0xFFFF; ///< Constant representing an invalid string (16bit in case it is used in savegames)
18 static const int MAX_CHAR_LENGTH        = 4;      ///< Max. length of UTF-8 encoded unicode character
19 static const uint MAX_LANG              = 0x7F;   ///< Maximum number of languages supported by the game, and the NewGRF specs
20 
21 /** Directions a text can go to */
22 enum TextDirection {
23 	TD_LTR, ///< Text is written left-to-right by default
24 	TD_RTL, ///< Text is written right-to-left by default
25 };
26 
27 /** StringTabs to group StringIDs */
28 enum StringTab {
29 	/* Tabs 0..1 for regular strings */
30 	TEXT_TAB_TOWN             =  4,
31 	TEXT_TAB_INDUSTRY         =  9,
32 	TEXT_TAB_STATION          = 12,
33 	TEXT_TAB_SPECIAL          = 14,
34 	TEXT_TAB_OLD_CUSTOM       = 15,
35 	TEXT_TAB_VEHICLE          = 16,
36 	/* Tab 17 for regular strings */
37 	TEXT_TAB_OLD_NEWGRF       = 26,
38 	TEXT_TAB_END              = 32, ///< End of language files.
39 	TEXT_TAB_GAMESCRIPT_START = 32, ///< Start of GameScript supplied strings.
40 	TEXT_TAB_NEWGRF_START     = 64, ///< Start of NewGRF supplied strings.
41 };
42 
43 /** Number of bits for the StringIndex within a StringTab */
44 static const uint TAB_SIZE_BITS       = 11;
45 /** Number of strings per StringTab */
46 static const uint TAB_SIZE            = 1 << TAB_SIZE_BITS;
47 
48 /** Number of strings for GameScripts */
49 static const uint TAB_SIZE_GAMESCRIPT = TAB_SIZE * 32;
50 
51 /** Number of strings for NewGRFs */
52 static const uint TAB_SIZE_NEWGRF     = TAB_SIZE * 256;
53 
54 /** Special string constants */
55 enum SpecialStrings {
56 
57 	/* special strings for town names. the town name is generated dynamically on request. */
58 	SPECSTR_TOWNNAME_START     = 0x20C0,
59 	SPECSTR_TOWNNAME_ENGLISH   = SPECSTR_TOWNNAME_START,
60 	SPECSTR_TOWNNAME_FRENCH,
61 	SPECSTR_TOWNNAME_GERMAN,
62 	SPECSTR_TOWNNAME_AMERICAN,
63 	SPECSTR_TOWNNAME_LATIN,
64 	SPECSTR_TOWNNAME_SILLY,
65 	SPECSTR_TOWNNAME_SWEDISH,
66 	SPECSTR_TOWNNAME_DUTCH,
67 	SPECSTR_TOWNNAME_FINNISH,
68 	SPECSTR_TOWNNAME_POLISH,
69 	SPECSTR_TOWNNAME_SLOVAK,
70 	SPECSTR_TOWNNAME_NORWEGIAN,
71 	SPECSTR_TOWNNAME_HUNGARIAN,
72 	SPECSTR_TOWNNAME_AUSTRIAN,
73 	SPECSTR_TOWNNAME_ROMANIAN,
74 	SPECSTR_TOWNNAME_CZECH,
75 	SPECSTR_TOWNNAME_SWISS,
76 	SPECSTR_TOWNNAME_DANISH,
77 	SPECSTR_TOWNNAME_TURKISH,
78 	SPECSTR_TOWNNAME_ITALIAN,
79 	SPECSTR_TOWNNAME_CATALAN,
80 	SPECSTR_TOWNNAME_LAST      = SPECSTR_TOWNNAME_CATALAN,
81 
82 	/* special strings for company names on the form "TownName transport". */
83 	SPECSTR_COMPANY_NAME_START = 0x70EA,
84 	SPECSTR_COMPANY_NAME_LAST  = SPECSTR_COMPANY_NAME_START + SPECSTR_TOWNNAME_LAST - SPECSTR_TOWNNAME_START,
85 
86 	SPECSTR_SILLY_NAME         = 0x70E5,
87 	SPECSTR_ANDCO_NAME         = 0x70E6,
88 	SPECSTR_PRESIDENT_NAME     = 0x70E7,
89 };
90 
91 #endif /* STRINGS_TYPE_H */
92