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Diffstat (limited to 'src/script/api/script_info_docs.hpp')
| -rw-r--r-- | src/script/api/script_info_docs.hpp | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/src/script/api/script_info_docs.hpp b/src/script/api/script_info_docs.hpp new file mode 100644 index 000000000..28f2b53f0 --- /dev/null +++ b/src/script/api/script_info_docs.hpp @@ -0,0 +1,247 @@ +/* $Id$ */ + +/* + * This file is part of OpenTTD. + * 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. + * 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. + * 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/>. + */ + +/** @file script_info_docs.hpp Description of the functions an Script can/must provide in ScriptInfo. */ + +/* This file exists purely for doxygen purposes. */ + +/** + * 'Abstract' class of the Scripts use to register themselves. + * + * @note This class is not part of the API. It is purely to document what + * Scripts must or can implemented to provide information to OpenTTD to + * base configuring/starting/loading the Script on. + * + * @note The required functions are also needed for Script Libraries. As such + * the information here can be used for libraries, but the information + * will not be shown in the GUI except for error/debug messages. + * + * @api ai + */ +class ScriptInfo { +public: + /** + * Gets the author name to be shown in the 'Available Scripts' window. + * + * @return The author name of the Script. + * @note This function is required. + */ + string GetAuthor(); + + /** + * Gets the Scripts name. This is shown in the 'Available Scripts' window + * and at all other places where the Script is mentioned, like the debug + * window or OpenTTD's help message. The name is used to uniquely + * identify an Script within OpenTTD and this name is used in savegames + * and the configuration file. + * + * @return The name of the Script. + * @note This function is required. + */ + string GetName(); + + /** + * Gets a 4 ASCII character short name of the Script to uniquely + * identify it from other Scripts. The short name is primarily + * used as unique identifier for the content system. + * The content system uses besides the short name also the + * MD5 checksum of all the source files to uniquely identify + * a specific version of the Script. + * + * The short name must consist of precisely four ASCII + * characters, or more precisely four non-zero bytes. + * + * @return The name of the Script. + * @note This function is required. + */ + string GetShortName(); + + /** + * Gets the description to be shown in the 'Available Scripts' window. + * + * @return The description for the Script. + * @note This function is required. + */ + string GetDescription(); + + /** + * Gets the version of the Script. This is a number to (in theory) + * uniquely identify the versions of an Script. Generally the + * 'instance' of an Script with the highest version is chosen to + * be loaded. + * + * When OpenTTD finds, during starting, a duplicate Script with the + * same version number one is randomly chosen. So it is + * important that this number is regularly updated/incremented. + * + * @return The version number of the Script. + * @note This function is required. + */ + int GetVersion(); + + /** + * Gets the lowest version of the Script that OpenTTD can still load + * the savegame of. In other words, from which version until this + * version can the Script load the savegames. + * + * If this function does not exist OpenTTD assumes it can only + * load savegames of this version. As such it will not upgrade + * to this version upon load. + * + * @return The lowest version number we load the savegame data. + * @note This function is optional. + */ + int MinVersionToLoad(); + + /** + * Gets the development/release date of the Script. + * + * The intention of this is to give the user an idea how old the + * Script is and whether there might be a newer version. + * + * @return The development/release date for the Script. + * @note This function is required. + */ + string GetDate(); + + /** + * Can this Script be used as random Script? + * + * The idea behind this function is to 'forbid' highly + * competitive or other special Scripts from running in games unless + * the user explicitly selects the Script to be loaded. This to + * try to prevent users from complaining that the Script is too + * aggressive or does not build profitable routes. + * + * If this function does not exist OpenTTD assumes the Script can + * be used as random Script. As such it will be randomly chosen. + * + * @return True if the Script can be used as random Script. + * @note This function is optional. + * + * @api -game + */ + bool UseAsRandomAI(); + + /** + * Gets the name of main class of the Script so OpenTTD knows + * what class to instantiate. + * + * @return The class name of the Script. + * @note This function is required. + */ + string CreateInstance(); + + /** + * Gets the API version this Script is written for. If this function + * does not exist API compatability with version 0.7 is assumed. + * If the function returns something OpenTTD does not understand, + * for example a newer version or a string that is not a version, + * the Script will not be loaded. + * + * Although in the future we might need to make a separate + * compatability 'wrapper' for a specific version of OpenTTD, for + * example '0.7.1', we will use only the major and minor number + * and not the bugfix number as valid return for this function. + * + * Valid return values are: + * - "0.7" + * - "1.0" + * - "1.1" + * - "1.2" + * + * @return The version this Script is compatible with. + * @note This function is optional. + */ + string GetAPIVersion(); + + /** + * Gets the URL to be shown in the 'this Script has crashed' message + * and in the 'Available Scripts' window. If this function does not + * exist no URL will be shown. + * + * This function purely exists to redirect users of the Script to the + * right place on the internet to discuss the Script and report bugs + * of this Script. + * + * @return The URL to show. + * @note This function is optional. + */ + string GetURL(); + + /** + * Gets the settings that OpenTTD shows in the "Script Parameters" window + * so the user can customize the Script. This is a special function that + * doesn't need to return anything. Instead you can call AddSetting + * and AddLabels here. + * + * @note This function is optional. + */ + void GetSettings(); + + /** Miscellaneous flags for Script settings. */ + enum ScriptConfigFlags { + CONFIG_NONE, ///< Normal setting. + CONFIG_RANDOM, ///< When randomizing the Script, pick any value between min_value and max_value. + CONFIG_BOOLEAN, ///< This value is a boolean (either 0 (false) or 1 (true) ). + CONFIG_INGAME, ///< This setting can be changed while the Script is running. + CONFIG_DEVELOPER, ///< This setting will only be visible when the Script development tools are active. + }; + + /** + * Add a user configurable setting for this Script. You can call this + * as many times as you have settings. + * @param setting_description A table with all information about a + * single setting. The table should have the following name/value pairs: + * - name The name of the setting, this is used in openttd.cfg to + * store the current configuration of Scripts. Required. + * - description A single line describing the setting. Required. + * - min_value The minimum value of this setting. Required for integer + * settings and not allowed for boolean settings. + * - max_value The maximum value of this setting. Required for integer + * settings and not allowed for boolean settings. + * - easy_value The default value if the easy difficulty level + * is selected. Required. + * - medium_value The default value if the medium difficulty level + * is selected. Required. + * - hard_value The default value if the hard difficulty level + * is selected. Required. + * - custom_value The default value if the custom difficulty level + * is selected. Required. + * - random_deviation If this property has a nonzero value, then the + * actual value of the setting in game will be + * user_configured_value + random(-random_deviation, random_deviation). + * Not allowed if the CONFIG_RANDOM flag is set, otherwise optional. + * - step_size The increase/decrease of the value every time the user + * clicks one of the up/down arrow buttons. Optional, default is 1. + * - flags Bitmask of some flags, see ScriptConfigFlags. Required. + * + * @note This is a function provided by OpenTTD, you don't have to + * include it in your Script but should just call it from GetSettings. + */ + void AddSetting(table setting_description); + + /** + * Add labels for the values of a setting. Instead of a number the + * user will see the corresponding name. + * @param setting_name The name of the setting. + * @param value_names A table that maps values to names. The first + * character of every identifier is ignored and the rest should + * be the an integer of the value you define a name for. The value + * is a short description of that value. + * To define labels for a setting named "competition_level" you could + * for example call it like this: + * AddLabels("competition_level", {_0 = "no competition", _1 = "some competition", + * _2 = "a lot of competition"}); + * + * @note This is a function provided by OpenTTD, you don't have to + * include it in your Script but should just call it from GetSettings. + */ + void AddLabels(const char *setting_name, table value_names); +}; |