Yield
UnigineScript is deprecated and will be removed in future releases. Please consider using C#/C++ instead, as these APIs are the preferred ones. Availability of new Engine features in UnigineScipt is not guaranteed, as the current level of support assumes only fixing critical issues.
The yield keyword is used to alter a starting point of a function for future calls. At the moment of execution, yield acts as return and can even return a value. The difference is that during the next call, the function will start its execution from the instruction right after the yield operator.
Syntax
// some_code_before;
yield value;
// some_code_after;
Parts
- value is a value to yield. It is optional (0 by default).
Example
int foo() {
begin:
// execution starts here during the first call
log.message("one, ");
// execution ends here during the first call
yield;
// execution starts here during the second call
log.message("two, ");
// execution ends here during the second call
yield;
// execution starts here during the third call
log.message("three, ");
// execution starts here during the third call
yield;
// execution starts here during the fourth call
goto begin;
}
forloop(int i = 0; 10) foo();
// the result is: one, two, three, one, two, …
Last update:
2020-04-10
Help improve this article
Was this article helpful?
(or select a word/phrase and press Ctrl+Enter)