Gkini

From Vendetta Lua
Revision as of 22:52, 15 April 2023 by Ravenwolf397 (talk | contribs) (Improve summary, add info to ReadString section)
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These are functions to manipulate the game's config file config.ini, located at "INSTALL_DIR/config.ini".

The format of the file looks like this:

<source lang="ini"> [section] key=value key2=value2 key3=value3 ...

[section2] key4=value4 key5=value5 key6=value6 ... </source>

For example, here is an excerpt from one config.ini:

<source lang="ini"> [Vendetta] version=4 skin=skins/platinum/ maxframerate=120 </source>

Values are usually strings or integers. All identifiers (sections and keys) are case-sensitive.

Each entry is exactly one line; this means they cannot contain newline characters ("\n"). The key and value are separated by the first equal sign in the line; for example, "key==value" is interpreted as a key "key" and value "=value".

All entries are limited to 767 characters (including key, equal sign, and value). Entries larger than this might be truncated, split, or ignored.

If any of your strings have a null character ("\0") in them, then they will be treated as if they ended there. So for these functions, a string like "foo\0bar" will be treated like it was just "foo".


Functions

ReadInt

Definition:
ReadInt(string section, string key, int default) -> int value

Description:
Read an integer from the given section and key

Arguments:
section a section of the config file
key key within a section
default value to return if key not found

Returns:

Example:
<source lang="lua">gkini.ReadInt("Vendetta", "showhelpstring", 1) -> 0 -- showhelpstring is ccurrently set to 0</source>


ReadString

Definition:
ReadString(string section, string key, string default) -> string value

Description:
Read a string from the given section and key

Arguments:
section a section of the config file
key key within a section
default value to return if key not found or value is empty (eg. "foo=")

Returns:

Example:
<source lang="lua">gkini.ReadString("Vendetta", "Username", "dude") -> "hans" -- get the default username from the config file</source> Notes:
- Leading/trailing spaces are stripped from the return value. For example, if your file reads "key= value ", then ReadString(section, "key", "") will return "value", not " value ".
- If the entry is longer than 767 characters, then further characters will be ignored.


WriteInt

Definition:
WriteInt(string section, string key, int value) -> nil

Description:
Write an integer to the given section and key

Arguments:
section a section of the config file
key key within a section
value value of a key as an integer

Returns:

Example:
<source lang="lua">gkini.WriteInt("Vendetta", "showhelpstring", 1) -- change the showhelpstring option to 1</source>


WriteString

Definition:
WriteString(string section, string key, string value) -> nil

Description:
Write a string to the given section and key. The entire entry must be <= 767 characters in total, including the key, equals sign, and value. If the entry is longer than this, then it will be truncated to 767 characters.

Arguments:
section a section of the config file
key key within a section
value value of a key as a string

Returns:

Example:
<source lang="lua">gkini.WriteString("Vendetta", "Username", "dude") -- change the Username option to dude</source>