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Functions

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Built-in functions

Section titled “Built-in functions”

The built-in functions are listed in the function reference and grouped by category. From the wiki’s delay page: “Some LSL functions delay script execution when they are called.”

User-defined functions

Section titled “User-defined functions”

From the wiki: “LSL allows user-defined functions which will help keep scripts compact and readable, and allow code reuse.”

<return_type> function_name([<parameter1_type> parameter1[, <parameter2_type> parameter2[, ...]]])
{
  function_statements;


  ...


  return value_of_return_type;
}
  • “User-defined functions must be defined before any states in the script or a syntax error will be generated on compilation.”
  • “The return_type may also be omitted for a void type function.”
  • “Parameters are passed by value, as with built-in functions. They behave like local variables and writing into them has no effect on what the function was called with.”
  • “If multiple return values are desired, they can be packed into a list, a vector or a rotation, depending on what you need to return.”

Reference

Section titled “Reference”

Quotations are from the Second Life Wiki pages Category:LSL User-Defined Functions (revision 1216649, 2024-05-12) and LSL Delay (revision 1175422, 2012-12-19); history, by Second Life Wiki contributors, under CC BY-SA 3.0. Last wiki edit: .