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OS Functions

Warning
The scope of applications for UnigineScript is limited to implementing materials-related logic (material expressions, scriptable materials, brush materials). Do not use UnigineScript as a language for application logic, please consider C#/C++ instead, as these APIs are the preferred ones. Availability of new Engine features in UnigineScipt (beyond its scope of applications) is not guaranteed, as the current level of support assumes only fixing critical issues.

double clock ( ) #

Returns time in seconds (with microsecond precision) passed from the engine start-up. This function returns the time with the highest precision possible from the operating system.

Return value

Time from the application start-up.

StringStack<> date ( string format ) #

Returns a current date in the given format.

Arguments

  • string format - Date format. The following placeholders can be used to show a date:
    • a: abbreviated weekday name (e.g., Sun)
    • b: abbreviated month name (e.g., Jan)
    • d: date and time (e.g., Thu Feb 8, 00:51)
    • s: second (00..60)
    • m: minute (00..59)
    • h: hour (0..23)
    • D: day of month (e.g, 1)
    • M: month (1..12)
    • Y: year
    • W: day of week (0..6); 0 is Sunday
    • %: a literal percent character

Return value

Current date in the given format.

string date ( string format, long time ) #

Returns a current date and time in the given format. This function can receive a second argument with an Unix timestamp to be converted into a readable format.

Arguments

  • string format - Date format.
  • long time - Unix time stamp to be converted. This is an optional argument.

Return value

Current date and time in the given format.

Examples

Source code (UnigineScript)
log.message("%s\n",date("%d\nMonth is %M\nYear is %Y\nDay is %D %b, %a\n"));
log.message("%s\n",date("%2h:%02m:%02s %04Y",));
Output
Wed Mar 20, 16:11
Month is 3
Year is 2013
Day is 20 Mar, Wed

16:11:14 2013

string getenv ( string name ) #

Gets a value of an environment variable.

Arguments

  • string name - Variable name.

Return value

Variable value.

Variable system ( string command, int wait = 1 ) #

Executes a shell command or commands.
Notice
On Windows, this function returns 0 if the wait argument is 0.

Arguments

  • string command - Command or commands to execute.
  • int wait - Value indicating if the program should wait for completion of command execution:
    • 1 to wait for completion. This value is used by default.
    • 0 not to wait.
    The value is required only on Windows.

Return value

Exit code of the last executed command if it was executed successfully; otherwise, -1.

Examples

Source code (UnigineScript)
// the following instruction will open a command prompt on Windows
system("cmd",1);

int time ( ) #

Returns the time since the Epoch (00:00:00 UTC, January 1, 1970), measured in seconds.

Return value

Number of seconds since 00:00:00, January 1, 1970.
Last update: 2021-04-01
Build: ()